Jahn, Olaf

[["dc.bibliographiccitation.firstpage","135"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","The European Physical Journal A"],["dc.bibliographiccitation.lastpage","140"],["dc.bibliographiccitation.volume","26"],["dc.contributor.author","Ahrens, J."],["dc.contributor.author","Altieri, S."],["dc.contributor.author","Annand, JRM"],["dc.contributor.author","Arends, H. J."],["dc.contributor.author","Beck, R."],["dc.contributor.author","Braghieri, A."],["dc.contributor.author","d'Hose, N."],["dc.contributor.author","Dutz, H."],["dc.contributor.author","Goertz, S."],["dc.contributor.author","Grabmayr, P."],["dc.contributor.author","Hasegawa, S."],["dc.contributor.author","Heid, E."],["dc.contributor.author","Holvoet, H."],["dc.contributor.author","van Hoorebeke, L."],["dc.contributor.author","Horikawa, N."],["dc.contributor.author","Iwata, T."],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Jennewein, P."],["dc.contributor.author","Kondratiev, R."],["dc.contributor.author","Krimmer, J."],["dc.contributor.author","Lang, M."],["dc.contributor.author","Lannoy, B."],["dc.contributor.author","Livingston, K."],["dc.contributor.author","McGeorge, J. C."],["dc.contributor.author","Meyer, Werner"],["dc.contributor.author","Panzeri, A."],["dc.contributor.author","Pedroni, P."],["dc.contributor.author","Pinelli, T."],["dc.contributor.author","Preobrajenski, I."],["dc.contributor.author","Reicherz, G."],["dc.contributor.author","Rosner, G."],["dc.contributor.author","Rost, M."],["dc.contributor.author","Rostomyan, T."],["dc.contributor.author","Ryckbosch, D."],["dc.contributor.author","Schumacher, M."],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Tamas, Gabor"],["dc.contributor.author","Thomas, Andy"],["dc.contributor.author","de Vyver, R."],["dc.contributor.author","Walcher, T."],["dc.contributor.author","Zapadtka, F."],["dc.date.accessioned","2018-11-07T10:55:18Z"],["dc.date.available","2018-11-07T10:55:18Z"],["dc.date.issued","2005"],["dc.description.abstract","The G asymmetry of the gamma p -> N pi reaction has been measured for the first time for E gamma = 340 +/- 14 MeV. This observable, for which very scarce published data exist, plays an important role to disentangle the contributions of the various nucleon resonances. The experiment, performed at the Mainz microtron MAIM, used a 4 pi-detector system, a linearly polarized, tagged photon beam, and a longitudinally polarized proton target."],["dc.identifier.doi","10.1140/epja/i2005-10158-3"],["dc.identifier.isi","000234051900016"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49755"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1434-601X"],["dc.relation.issn","1434-6001"],["dc.title","Measurement of the G asymmetry for the gamma p -> N pi channels in the Delta(1232) resonance region"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","202303"],["dc.bibliographiccitation.issue","20"],["dc.bibliographiccitation.journal","Physical Review Letters"],["dc.bibliographiccitation.volume","97"],["dc.contributor.author","Ahrens, J."],["dc.contributor.author","Altieri, S."],["dc.contributor.author","Annand, J. R. M."],["dc.contributor.author","Arends, H.-J."],["dc.contributor.author","Beck, R."],["dc.contributor.author","Bradtke, C."],["dc.contributor.author","Braghieri, A."],["dc.contributor.author","d'Hose, N."],["dc.contributor.author","Dutz, H."],["dc.contributor.author","Goertz, S."],["dc.contributor.author","Grabmayr, P."],["dc.contributor.author","Hasegawa, S."],["dc.contributor.author","Heid, E."],["dc.contributor.author","Holvoet, H."],["dc.contributor.author","van Hoorebeke, L."],["dc.contributor.author","Horikawa, N."],["dc.contributor.author","Iwata, T."],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Jennewein, P."],["dc.contributor.author","Klein, F."],["dc.contributor.author","Kondratiev, R."],["dc.contributor.author","Lang, M."],["dc.contributor.author","Lannoy, B."],["dc.contributor.author","Lisin, V."],["dc.contributor.author","Martinez-Fabregate, M."],["dc.contributor.author","McGeorge, J. C."],["dc.contributor.author","Meyer, Werner"],["dc.contributor.author","Panzeri, A."],["dc.contributor.author","Pedroni, P."],["dc.contributor.author","Pinelli, T."],["dc.contributor.author","Preobrajenski, I."],["dc.contributor.author","Reicherz, G."],["dc.contributor.author","Rohlof, Ch."],["dc.contributor.author","Rosner, G."],["dc.contributor.author","Rost, M."],["dc.contributor.author","Rostomyan, T."],["dc.contributor.author","Ryckbosch, D."],["dc.contributor.author","Schumacher, M."],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Tamas, Gabor"],["dc.contributor.author","Thomas, Andy"],["dc.contributor.author","van de Vyver, R."],["dc.contributor.author","Zapadtka, F."],["dc.date.accessioned","2018-11-07T08:57:26Z"],["dc.date.available","2018-11-07T08:57:26Z"],["dc.date.issued","2006"],["dc.description.abstract","A measurement of the helicity dependence of the total inclusive photoabsorption cross section on the deuteron was carried out at MAMI (Mainz) in the energy range 200 < E-gamma < 800 MeV. The experiment used a 4 pi detection system, a circularly polarized tagged photon beam and a frozen-spin target which provided longitudinally polarized deuterons. The contribution to the Gerasimov-Drell-Hearn sum rule for the deuteron determined from the data is 407 +/- 20(stat)+/- 24(syst) mu b for 200 < E-gamma < 800 MeV."],["dc.identifier.doi","10.1103/PhysRevLett.97.202303"],["dc.identifier.isi","000242101600017"],["dc.identifier.pmid","17155680"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23402"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Physical Soc"],["dc.relation.issn","0031-9007"],["dc.title","Measurement of the Gerasimov-Drell-Hearn integrand for H-2 from 200 to 800 MeV"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","162301"],["dc.bibliographiccitation.issue","16"],["dc.bibliographiccitation.journal","Physical Review Letters"],["dc.bibliographiccitation.volume","88"],["dc.contributor.author","Kossert, K."],["dc.contributor.author","Camen, M."],["dc.contributor.author","Wissmann, F."],["dc.contributor.author","Ahrens, J."],["dc.contributor.author","Annand, JRM"],["dc.contributor.author","Arends, H. J."],["dc.contributor.author","Beck, R."],["dc.contributor.author","Caselotti, G."],["dc.contributor.author","Grabmayr, P."],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Jennewein, P."],["dc.contributor.author","Levchuk, M. I."],["dc.contributor.author","L'vov, A. I."],["dc.contributor.author","McGeorge, J. C."],["dc.contributor.author","Natter, A."],["dc.contributor.author","de Leon, V. O."],["dc.contributor.author","Petrun'kin, V. A."],["dc.contributor.author","Rosner, G."],["dc.contributor.author","Schumacher, M."],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Smend, F."],["dc.contributor.author","Thomas, Andy"],["dc.contributor.author","Weihofen, W."],["dc.contributor.author","Zapadtka, F."],["dc.date.accessioned","2018-11-07T10:30:36Z"],["dc.date.available","2018-11-07T10:30:36Z"],["dc.date.issued","2002"],["dc.description.abstract","Measuring Compton scattered photons and recoil neutrons in coincidence, quasifree Compton scattering by the neutron has been investigated at MAMI (Mainz) at theta(gamma)(lab) = 136degrees in an energy range from 200 to 400 MeV. From the data a polarizability difference of alpha(n) - beta(n) = 9.8 +/- 3.6(stat)(-1.1)(+2.1)(syst) +/- 2.2(model) in units of 10(-4) fm(3) has been determined. In combination with the polarizability sum alpha(n) + beta(n) = 15.2 +/- 0.5 deduced from photoabsorption data, the first precise results for the neutron electric and magnetic polarizabilities, alpha(n) = 12.5 +/- 1.8(stat)(-0.6)(+1.1)(syst) +/- 1.1(model) and beta(n) = 2.7 -/+ 1.8(stat)(-1.1)(+0.6)(syst) -/+ 1.1(model) , are obtained."],["dc.identifier.doi","10.1103/PhysRevLett.88.162301"],["dc.identifier.isi","000174905400011"],["dc.identifier.pmid","11955229"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/43902"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","American Physical Soc"],["dc.relation.issn","0031-9007"],["dc.title","Neutron polarizabilities investigated by quasifree Compton scattering from the deuteron"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","323"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","The European Physical Journal A"],["dc.bibliographiccitation.lastpage","333"],["dc.bibliographiccitation.volume","21"],["dc.contributor.author","Ahrens, J."],["dc.contributor.author","Altieri, S."],["dc.contributor.author","Annand, JRM"],["dc.contributor.author","Anton, G."],["dc.contributor.author","Arends, H. J."],["dc.contributor.author","Aulenbacher, K."],["dc.contributor.author","Beck, R."],["dc.contributor.author","Bradtke, C."],["dc.contributor.author","Braghieri, A."],["dc.contributor.author","Degrande, N."],["dc.contributor.author","d'Hose, N."],["dc.contributor.author","Drechsel, D."],["dc.contributor.author","Dutz, H."],["dc.contributor.author","Goertz, S."],["dc.contributor.author","Grabmayr, P."],["dc.contributor.author","Hansen, K."],["dc.contributor.author","Harmsen, J."],["dc.contributor.author","von Harrach, D."],["dc.contributor.author","Hasegawa, S."],["dc.contributor.author","Hasegawa, T."],["dc.contributor.author","Heid, E."],["dc.contributor.author","Helbing, Krister"],["dc.contributor.author","Holvoet, H."],["dc.contributor.author","van Hoorebeke, L."],["dc.contributor.author","Horikawa, N."],["dc.contributor.author","Iwata, T."],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Jennewein, P."],["dc.contributor.author","Kageya, T."],["dc.contributor.author","Kiel, B."],["dc.contributor.author","Klein, F."],["dc.contributor.author","Kondratiev, R."],["dc.contributor.author","Kossert, K."],["dc.contributor.author","Krimmer, J."],["dc.contributor.author","Lang, M."],["dc.contributor.author","Lannoy, B."],["dc.contributor.author","Leukel, R."],["dc.contributor.author","Lisin, V."],["dc.contributor.author","Matsuda, T."],["dc.contributor.author","McGeorge, J. C."],["dc.contributor.author","Meier, A."],["dc.contributor.author","Menze, D."],["dc.contributor.author","Meyer, Werner"],["dc.contributor.author","Michel, Tanja Maria"],["dc.contributor.author","Naumann, J."],["dc.contributor.author","Panzeri, A."],["dc.contributor.author","Pedroni, P."],["dc.contributor.author","Pinelli, T."],["dc.contributor.author","Preobrajenski, I."],["dc.contributor.author","Radtke, E."],["dc.contributor.author","Reichert, E."],["dc.contributor.author","Reicherz, G."],["dc.contributor.author","Rohlof, C."],["dc.contributor.author","Rosner, G."],["dc.contributor.author","Ryckbosch, D."],["dc.contributor.author","Schoch, B."],["dc.contributor.author","Schumacher, M."],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Speckner, T."],["dc.contributor.author","Takabayashi, N."],["dc.contributor.author","Tamas, Gabor"],["dc.contributor.author","Thomas, Andy"],["dc.contributor.author","Tiator, L."],["dc.contributor.author","van de Vyver, R."],["dc.contributor.author","Wakai, A."],["dc.contributor.author","Weihofen, W."],["dc.contributor.author","Wissmann, F."],["dc.contributor.author","Zapadtka, F."],["dc.contributor.author","Zeitler, G."],["dc.date.accessioned","2018-11-07T10:46:43Z"],["dc.date.available","2018-11-07T10:46:43Z"],["dc.date.issued","2004"],["dc.description.abstract","A high-quality double-polarization data set for the helicity dependence of the total and differential cross-sections for both gammap --> Npi channels in the Delta region has been obtained in the framework of the GDH experiment. The experiment, performed at the Mainz microtron MAMI, used a 4pi detection system, a circularly polarized photon beam, and a longitudinally polarized frozen-spin target. These data are included in the database to perform a multipole analysis to determine the properties of the Delta(1232)-resonance. For the resonant Delta(1232) multipoles we find a very good agreement with previous analyses, while the nonresonant ones show significant deviations."],["dc.identifier.doi","10.1140/epja/i2003-10216-x"],["dc.identifier.isi","000223717300017"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/47808"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1434-6001"],["dc.title","Helicity dependence of the gamma p -> N pi channels and multipole analysis in the Delta region"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","PII S0370-2693(02)03008-3"],["dc.bibliographiccitation.firstpage","49"],["dc.bibliographiccitation.issue","1-2"],["dc.bibliographiccitation.journal","Physics Letters B"],["dc.bibliographiccitation.lastpage","55"],["dc.bibliographiccitation.volume","551"],["dc.contributor.author","Ahrens, J."],["dc.contributor.author","Altieri, S."],["dc.contributor.author","Annand, JRM"],["dc.contributor.author","Anton, G."],["dc.contributor.author","Arends, H. J."],["dc.contributor.author","Aulenbacher, K."],["dc.contributor.author","Beck, R."],["dc.contributor.author","Bradtke, C."],["dc.contributor.author","Braghieri, A."],["dc.contributor.author","Degrande, N."],["dc.contributor.author","D'Hose, N."],["dc.contributor.author","Dutz, H."],["dc.contributor.author","Goertz, S."],["dc.contributor.author","Grabmayr, P."],["dc.contributor.author","Hansen, K."],["dc.contributor.author","Harmsen, J."],["dc.contributor.author","von Harrach, D."],["dc.contributor.author","Hasegawa, S."],["dc.contributor.author","Hasegawa, T."],["dc.contributor.author","Heid, E."],["dc.contributor.author","Helbing, Krister"],["dc.contributor.author","Holvoet, H."],["dc.contributor.author","van Hoorebeke, L."],["dc.contributor.author","Horikawa, N."],["dc.contributor.author","Iwata, T."],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Jennewein, P."],["dc.contributor.author","Kageya, T."],["dc.contributor.author","Kiel, B."],["dc.contributor.author","Klein, F."],["dc.contributor.author","Kondratiev, R."],["dc.contributor.author","Kossert, K."],["dc.contributor.author","Krimmer, J."],["dc.contributor.author","Lang, M."],["dc.contributor.author","Lannoy, B."],["dc.contributor.author","Leukel, R."],["dc.contributor.author","Lisin, V."],["dc.contributor.author","Matsuda, T."],["dc.contributor.author","McGeorge, J. C."],["dc.contributor.author","Meier, A."],["dc.contributor.author","Menze, D."],["dc.contributor.author","Meyer, Werner"],["dc.contributor.author","Michel, Tanja Maria"],["dc.contributor.author","Naumann, J."],["dc.contributor.author","Panzeri, A."],["dc.contributor.author","Pedroni, P."],["dc.contributor.author","Pinelli, T."],["dc.contributor.author","Preobrajenski, I."],["dc.contributor.author","Radtke, E."],["dc.contributor.author","Reichert, E."],["dc.contributor.author","Reicherz, G."],["dc.contributor.author","Rohlof, C."],["dc.contributor.author","Rosner, G."],["dc.contributor.author","Rostomyan, T."],["dc.contributor.author","Rovelli, C."],["dc.contributor.author","Rychbosch, D."],["dc.contributor.author","Schoch, B."],["dc.contributor.author","Schumacher, M."],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Speckner, T."],["dc.contributor.author","Takabayashi, N."],["dc.contributor.author","Tamas, Gabor"],["dc.contributor.author","Thomas, Andy"],["dc.contributor.author","van de Vyver, R."],["dc.contributor.author","Wakai, A."],["dc.contributor.author","Weihofen, W."],["dc.contributor.author","Wissmann, F."],["dc.contributor.author","Zapadtka, F."],["dc.contributor.author","Zeitler, G."],["dc.date.accessioned","2018-11-07T10:41:45Z"],["dc.date.available","2018-11-07T10:41:45Z"],["dc.date.issued","2003"],["dc.description.abstract","The helicity dependence of the total cross section for the (γ) over right arrow(p) over right arrownpi(+) pi(0) reaction has been measured for the first time at incident photon energies from 400 to 800 MeV The measurement was performed with the large acceptance detector DAPHNE at the tagged photon beam facility of the MAMI accelerator in Mainz. This channel is found to be excited predominantly when the photon and proton have a parallel spin orientation, due to the intermediate production of the D-13 resonance. (C) 2002 Elsevier Science B.V. All rights reserved."],["dc.identifier.doi","10.1016/S0370-2693(02)03008-3"],["dc.identifier.isi","000180278700006"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11250"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/46616"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","0370-2693"],["dc.relation.orgunit","Fakultät für Physik"],["dc.rights","CC BY 3.0"],["dc.title","Helicity dependence of the (gamma)over-right-arrow (p)over-right-arrow > n pi(+) pi(0) reaction in the second resonance region"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","391"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","The European Physical Journal A"],["dc.bibliographiccitation.lastpage","399"],["dc.bibliographiccitation.volume","19"],["dc.contributor.author","Kossert, K."],["dc.contributor.author","Camen, M."],["dc.contributor.author","Wissmann, F."],["dc.contributor.author","Ahrens, J."],["dc.contributor.author","Annand, JRM"],["dc.contributor.author","Arends, H. J."],["dc.contributor.author","Beck, R."],["dc.contributor.author","Caselotti, G."],["dc.contributor.author","Grabmayr, P."],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Jennewein, P."],["dc.contributor.author","Levchuk, M. I."],["dc.contributor.author","L'vov, A. I."],["dc.contributor.author","McGeorge, J. C."],["dc.contributor.author","Natter, A."],["dc.contributor.author","de Leon, V. O."],["dc.contributor.author","Petrun'kin, V. A."],["dc.contributor.author","Rosner, G."],["dc.contributor.author","Schumacher, M."],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Smend, F."],["dc.contributor.author","Thomas, Andy"],["dc.contributor.author","Weihofen, W."],["dc.contributor.author","Zapadtka, F."],["dc.date.accessioned","2018-11-07T10:50:37Z"],["dc.date.available","2018-11-07T10:50:37Z"],["dc.date.issued","2004"],["dc.description.abstract","Differential cross-sections for quasi-free pi(0) photoproduction from the proton and neutron bound in the deuteron have been measured for Egamma=200-400 MeV at theta(gamma)(lab)=136.2degrees using the Glasgow photon tagger at MAMI, the Mainz 48 cm empty set 64 cm NaI(Tl) photon detector and the Gottingen SENECA recoil detector. For the proton measurements made with both liquid-deuterium and liquid-hydrogen targets allow direct comparison of \"free\" pi(0) photoproduction cross-sections as extracted from the bound-proton data with experimental free cross-sections which are found to be in reasonable agreement below 320 MeV. At higher energies the \"free\" cross-sections extracted from quasi-free data are significantly smaller than the experimental free cross-sections and theoretical predictions based on multipole analysis. For the first time, \"free\" neutron cross-section have been extracted in the Delta-region. They are also in agreement with the predictions from multipole analysis up to 320 MeV and significantly smaller at higher photon energies."],["dc.identifier.doi","10.1140/epja/i2003-10130-3"],["dc.identifier.isi","000188837600012"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/48696"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1434-601X"],["dc.relation.issn","1434-6001"],["dc.title","Quasi-free pi(0) photoproduction from the bound nucleon"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","11"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","The European Physical Journal A"],["dc.bibliographiccitation.lastpage","21"],["dc.bibliographiccitation.volume","34"],["dc.contributor.author","Ahrens, J."],["dc.contributor.author","Altieri, S."],["dc.contributor.author","Annand, J. R. M."],["dc.contributor.author","Arends, H.-J."],["dc.contributor.author","Beck, R."],["dc.contributor.author","Blackston, M. A."],["dc.contributor.author","Bradtke, C."],["dc.contributor.author","Braghieri, A."],["dc.contributor.author","d'Hose, N."],["dc.contributor.author","Dutz, H."],["dc.contributor.author","Fix, A."],["dc.contributor.author","Goertz, S."],["dc.contributor.author","Grabmayr, P."],["dc.contributor.author","Hasegawa, S."],["dc.contributor.author","Heid, E."],["dc.contributor.author","Holvoet, H."],["dc.contributor.author","Horikawa, N."],["dc.contributor.author","Iwata, T."],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Jennewein, P."],["dc.contributor.author","Klein, F."],["dc.contributor.author","Kondratiev, R."],["dc.contributor.author","Lang, M."],["dc.contributor.author","Lannoy, B."],["dc.contributor.author","Lisin, V."],["dc.contributor.author","Martinez-Fabregate, M."],["dc.contributor.author","McGeorge, J. C."],["dc.contributor.author","Meyer, Werner"],["dc.contributor.author","Panzeri, A."],["dc.contributor.author","Pedroni, P."],["dc.contributor.author","Pinelli, T."],["dc.contributor.author","Preobrajenski, I."],["dc.contributor.author","Reicherz, G."],["dc.contributor.author","Rohlof, Ch."],["dc.contributor.author","Rosner, G."],["dc.contributor.author","Rost, M."],["dc.contributor.author","Rostomyan, T."],["dc.contributor.author","Ryckbosch, D."],["dc.contributor.author","Schumacher, M."],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Tamas, Gabor"],["dc.contributor.author","Thomas, Andy"],["dc.contributor.author","de Vyver, R. van"],["dc.contributor.author","Weller, H. R."],["dc.contributor.author","Zapadtka, F."],["dc.date.accessioned","2018-11-07T10:58:02Z"],["dc.date.available","2018-11-07T10:58:02Z"],["dc.date.issued","2007"],["dc.description.abstract","The helicity dependence of the total cross-section and the invariant-mass distributions in the (p pi(+/-)) and (pi(+) pi(-)) final states for the gamma p -> p pi(+)pi(-) reaction have been measured for the first time at incident photon energies from 400 to 800MeV. The measurement was performed with the large-acceptance detector DAPHNE at the tagged photon beam facility of the MAMI accelerator in Mainz. Although this channel is found to be predominantly excited by the intermediate production of a Delta pi state, both the measured unpolarized and the helicity-dependent observables are generally not well described by the existing theoretical models."],["dc.identifier.doi","10.1140/epja/i2007-10491-5"],["dc.identifier.isi","000250583500003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50389"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1434-6001"],["dc.title","First measurement of the helicity dependence for the gamma p -> p pi(+)pi(-) reaction"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","232002"],["dc.bibliographiccitation.issue","23"],["dc.bibliographiccitation.journal","Physical Review Letters"],["dc.bibliographiccitation.volume","88"],["dc.contributor.author","Ahrens, J."],["dc.contributor.author","Altieri, S."],["dc.contributor.author","Annand, JRM"],["dc.contributor.author","Anton, G."],["dc.contributor.author","Arends, H. J."],["dc.contributor.author","Aulenbacher, K."],["dc.contributor.author","Beck, R."],["dc.contributor.author","Bradtke, C."],["dc.contributor.author","Braghieri, A."],["dc.contributor.author","Degrande, N."],["dc.contributor.author","d'Hose, N."],["dc.contributor.author","Drechsel, D."],["dc.contributor.author","Dutz, H."],["dc.contributor.author","Goertz, S."],["dc.contributor.author","Grabmayr, P."],["dc.contributor.author","Hansen, K."],["dc.contributor.author","Harmsen, J."],["dc.contributor.author","von Harrach, D."],["dc.contributor.author","Hasegawa, S."],["dc.contributor.author","Hasegawa, T."],["dc.contributor.author","Heid, E."],["dc.contributor.author","Helbing, Krister"],["dc.contributor.author","Holvoet, H."],["dc.contributor.author","van Hoorebeke, L."],["dc.contributor.author","Horikawa, N."],["dc.contributor.author","Iwata, T."],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Jennewein, P."],["dc.contributor.author","Kageya, T."],["dc.contributor.author","Kamalov, S."],["dc.contributor.author","Kiel, B."],["dc.contributor.author","Klein, F."],["dc.contributor.author","Kondratiev, R."],["dc.contributor.author","Kossert, K."],["dc.contributor.author","Krimmer, J."],["dc.contributor.author","Lang, M."],["dc.contributor.author","Lannoy, B."],["dc.contributor.author","Leukel, R."],["dc.contributor.author","Lisin, V."],["dc.contributor.author","Matsuda, T."],["dc.contributor.author","McGeorge, J. C."],["dc.contributor.author","Meier, A."],["dc.contributor.author","Menze, D."],["dc.contributor.author","Meyer, Werner"],["dc.contributor.author","Michel, Tanja Maria"],["dc.contributor.author","Naumann, J."],["dc.contributor.author","Panzeri, A."],["dc.contributor.author","Pedroni, P."],["dc.contributor.author","Pinelli, T."],["dc.contributor.author","Preobrajenski, I."],["dc.contributor.author","Radtke, E."],["dc.contributor.author","Reichert, E."],["dc.contributor.author","Reicherz, G."],["dc.contributor.author","Rohlof, C."],["dc.contributor.author","Rosner, G."],["dc.contributor.author","Ryckbosch, D."],["dc.contributor.author","Schoch, B."],["dc.contributor.author","Schumacher, M."],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Speckner, T."],["dc.contributor.author","Takabayashi, N."],["dc.contributor.author","Tamas, Gabor"],["dc.contributor.author","Thomas, Andy"],["dc.contributor.author","Tiator, L."],["dc.contributor.author","van Vyver, R."],["dc.contributor.author","Wakai, A."],["dc.contributor.author","Weihofen, W."],["dc.contributor.author","Wissmann, F."],["dc.contributor.author","Zapadtka, F."],["dc.contributor.author","Zeitler, G."],["dc.date.accessioned","2018-11-07T10:26:04Z"],["dc.date.available","2018-11-07T10:26:04Z"],["dc.date.issued","2002"],["dc.description.abstract","The helicity dependence of the (γ) over right arrow(p) over right arrow -->ppi(0) reaction has been measured for the first time in the photon-energy range from 550 to 790 MeV. The experiment, performed at the Mainz microtron MAMI, used a 4pi -detector system, a circularly polarized, tagged photon beam, and a longitudinally polarized frozen-spin target. These data are predominantly sensitive to the D-13(1520) resonance and are used to determine its helicity amplitudes."],["dc.identifier.doi","10.1103/PhysRevLett.88.232002"],["dc.identifier.isi","000175860500017"],["dc.identifier.pmid","12059355"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42966"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","American Physical Soc"],["dc.relation.issn","0031-9007"],["dc.title","Helicity amplitudes A(1/2) and A(3/2) for the D-13(1520) resonance obtained from the (gamma)over-right-arrow(p)over-right-arrow -> p pi(0) reaction"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","241"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","The European Physical Journal A"],["dc.bibliographiccitation.lastpage","244"],["dc.bibliographiccitation.volume","17"],["dc.contributor.author","Ahrens, J."],["dc.contributor.author","Altieri, S."],["dc.contributor.author","Annand, JRM"],["dc.contributor.author","Anton, G."],["dc.contributor.author","Arends, H. J."],["dc.contributor.author","Aulenbacher, K."],["dc.contributor.author","Beck, R."],["dc.contributor.author","Bradtke, C."],["dc.contributor.author","Braghieri, A."],["dc.contributor.author","d'Hose, N."],["dc.contributor.author","Drechsel, D."],["dc.contributor.author","Dutz, H."],["dc.contributor.author","Goertz, S."],["dc.contributor.author","Grabmayr, P."],["dc.contributor.author","Hansen, K."],["dc.contributor.author","Harmsen, J."],["dc.contributor.author","von Harrach, D."],["dc.contributor.author","Hasegawa, S."],["dc.contributor.author","Hasegawa, T."],["dc.contributor.author","Heid, E."],["dc.contributor.author","Helbing, Krister"],["dc.contributor.author","Holvoet, H."],["dc.contributor.author","van Hoorebeke, L."],["dc.contributor.author","Horikawa, N."],["dc.contributor.author","Iwata, T."],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Jennewein, P."],["dc.contributor.author","Kageya, T."],["dc.contributor.author","Kiel, B."],["dc.contributor.author","Klein, F."],["dc.contributor.author","Kondratiev, R."],["dc.contributor.author","Kossert, K."],["dc.contributor.author","Krimmer, J."],["dc.contributor.author","Lang, M."],["dc.contributor.author","Lannoy, B."],["dc.contributor.author","Leukel, R."],["dc.contributor.author","Lisin, V."],["dc.contributor.author","Matsuda, T."],["dc.contributor.author","McGeorge, J. C."],["dc.contributor.author","Meier, A."],["dc.contributor.author","Menze, D."],["dc.contributor.author","Meyer, Werner"],["dc.contributor.author","Michel, Tanja Maria"],["dc.contributor.author","Naumann, J."],["dc.contributor.author","Panzeri, A."],["dc.contributor.author","Pedroni, P."],["dc.contributor.author","Pinelli, T."],["dc.contributor.author","Preobrajenski, I."],["dc.contributor.author","Radtke, E."],["dc.contributor.author","Reichert, E."],["dc.contributor.author","Reicherz, G."],["dc.contributor.author","Rohlof, C."],["dc.contributor.author","Rosner, G."],["dc.contributor.author","Ryckbosch, D."],["dc.contributor.author","Schoch, B."],["dc.contributor.author","Schumacher, M."],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Speckner, T."],["dc.contributor.author","Takabayashi, N."],["dc.contributor.author","Tamas, Gabor"],["dc.contributor.author","Thomas, Andy"],["dc.contributor.author","van de Vyver, R."],["dc.contributor.author","Wakai, A."],["dc.contributor.author","Weihofen, W."],["dc.contributor.author","Wissmann, F."],["dc.contributor.author","Zapadtka, F."],["dc.contributor.author","Zeitler, G."],["dc.date.accessioned","2018-11-07T10:38:32Z"],["dc.date.available","2018-11-07T10:38:32Z"],["dc.date.issued","2003"],["dc.description.abstract","The helicity dependence of the (gamma) over right arrow(p) over right arrow -+ peta reaction has been measured for the first time at a center-of-mass angle theta(eta) = 70degrees in the photon energy range from 780 MeV to 790 MeV. The experiment, performed at the Mainz microtron MAMI, used a 4pi-detector system, a circularly polarized, tagged photon beam. and a longitudinally polarized frozen-spin target. The helicity 3/2 cross-section is found to be small and the results for helicity 1/2 agree with predictions from the MAID analysis."],["dc.identifier.doi","10.1140/epja/i2002-10153-2"],["dc.identifier.isi","000184224900010"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/45836"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1434-601X"],["dc.relation.issn","1434-6001"],["dc.title","First measurement of the helicity-dependent (gamma)over-right-arrow(p)over-right-arrow -> p eta differential cross-section"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","173"],["dc.bibliographiccitation.issue","3-4"],["dc.bibliographiccitation.journal","Physics Letters B"],["dc.bibliographiccitation.lastpage","180"],["dc.bibliographiccitation.volume","624"],["dc.contributor.author","Ahrens, J."],["dc.contributor.author","Altieri, S."],["dc.contributor.author","Annand, JRM"],["dc.contributor.author","Anton, G."],["dc.contributor.author","Arends, H. J."],["dc.contributor.author","Aulenbacher, K."],["dc.contributor.author","Beck, R."],["dc.contributor.author","Bradtke, C."],["dc.contributor.author","Braghieri, A."],["dc.contributor.author","Degrande, N."],["dc.contributor.author","d'Hose, N."],["dc.contributor.author","Dutz, H."],["dc.contributor.author","Goertz, S."],["dc.contributor.author","Grabmayr, P."],["dc.contributor.author","Hansen, K."],["dc.contributor.author","Harmsen, J."],["dc.contributor.author","von Harrach, D."],["dc.contributor.author","Hasegawa, S."],["dc.contributor.author","Hasegawa, T."],["dc.contributor.author","Heid, E."],["dc.contributor.author","Helbing, Krister"],["dc.contributor.author","Holvoet, H."],["dc.contributor.author","van Hoorebeke, L."],["dc.contributor.author","Horikawa, N."],["dc.contributor.author","Iwata, T."],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Jennewein, P."],["dc.contributor.author","Kageya, T."],["dc.contributor.author","Kiel, B."],["dc.contributor.author","Klein, F."],["dc.contributor.author","Kondratiev, R."],["dc.contributor.author","Kossert, K."],["dc.contributor.author","Krimmer, J."],["dc.contributor.author","Lang, M."],["dc.contributor.author","Lannoy, B."],["dc.contributor.author","Leukel, R."],["dc.contributor.author","Lisin, V."],["dc.contributor.author","Matsuda, T."],["dc.contributor.author","McGeorge, J. C."],["dc.contributor.author","Meier, A."],["dc.contributor.author","Menze, D."],["dc.contributor.author","Meyer, Werner"],["dc.contributor.author","Michel, Tanja Maria"],["dc.contributor.author","Naumann, J."],["dc.contributor.author","Panzeri, A."],["dc.contributor.author","Pedroni, P."],["dc.contributor.author","Pinelli, T."],["dc.contributor.author","Preobrajenski, I."],["dc.contributor.author","Radtke, E."],["dc.contributor.author","Reichert, E."],["dc.contributor.author","Reicherz, G."],["dc.contributor.author","Rohlof, C."],["dc.contributor.author","Rosner, G."],["dc.contributor.author","Rostomyan, T."],["dc.contributor.author","Ryckbosch, D."],["dc.contributor.author","Schoch, B."],["dc.contributor.author","Schumacher, M."],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Speckner, T."],["dc.contributor.author","Takabayashi, N."],["dc.contributor.author","Tamas, Gabor"],["dc.contributor.author","Thomas, Andy"],["dc.contributor.author","van de Vyver, R."],["dc.contributor.author","Wakai, A."],["dc.contributor.author","Weihofen, W."],["dc.contributor.author","Wissmann, F."],["dc.contributor.author","Zapadtka, F."],["dc.contributor.author","Zeitler, G."],["dc.date.accessioned","2018-11-07T10:55:41Z"],["dc.date.available","2018-11-07T10:55:41Z"],["dc.date.issued","2005"],["dc.description.abstract","The helicity dependence of the total cross section for the (gamma) over right arrow(p) over right arrow -> p pi(0)pi(0) reaction has been measured for the first time at incident photon energies from 400 to 800 MeV. The measurement, performed at the tagged photon beam facility of the MAMI accelerator in Mainz, used the large acceptance detector DAPHNE and a longitudinally polarized frozen-spin target. This channel is found to be excited predominantly when the photon and proton have a parallel spin orientation, most likely due to the intermediate production of the D-13(1520) resonance. However, the contribution of the antiparallel spin configuration, arising from other reaction mechanisms, is also not negligible. This result gives important new information to resolve the existing model discrepancies in the identification of the nucleon resonances contributing to this channel. (c) 2005 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.physletb.2005.08.034"],["dc.identifier.isi","000232169100007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49844"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","1873-2445"],["dc.relation.issn","0370-2693"],["dc.title","Intermediate resonance excitation in the gamma p -> p pi(0)pi(0) reaction"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]