Mazza, Marco G.

[["dc.bibliographiccitation.artnumber","717"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","The European Physical Journal C"],["dc.bibliographiccitation.volume","82"],["dc.contributor.author","Aad, G."],["dc.contributor.author","Abbott, B."],["dc.contributor.author","Abbott, D. C."],["dc.contributor.author","Abud, A. A."],["dc.contributor.author","Abeling, K."],["dc.contributor.author","Abhayasinghe, D. K."],["dc.contributor.author","Abidi, S. H."],["dc.contributor.author","Aboulhorma, A."],["dc.contributor.author","Abramowicz, H."],["dc.contributor.author","Achkar, B."],["dc.contributor.author","Albert, J."],["dc.contributor.author","Anthony, M. T."],["dc.contributor.author","Arnold, H."],["dc.contributor.author","Balaji, S."],["dc.contributor.author","Chen, Y."],["dc.contributor.author","Chowdhury, T."],["dc.contributor.author","Degens, J."],["dc.contributor.author","Falke, S."],["dc.contributor.author","Fournier, D."],["dc.contributor.author","Gao, Y."],["dc.contributor.author","Grosse-Knetter, J."],["dc.contributor.author","Harenberg, T."],["dc.contributor.author","Jin, S."],["dc.contributor.author","Kim, E."],["dc.contributor.author","Kluth, S."],["dc.contributor.author","Krüger, H."],["dc.contributor.author","Kuhl, T."],["dc.contributor.author","Lai, S."],["dc.contributor.author","Lehmann, K."],["dc.contributor.author","Li, H."],["dc.contributor.author","Li, H."],["dc.contributor.author","Li, H."],["dc.contributor.author","Li, J."],["dc.contributor.author","Li, K."],["dc.contributor.author","Li, X."],["dc.contributor.author","Liu, B."],["dc.contributor.author","Lorenz, J."],["dc.contributor.author","Lu, M."],["dc.contributor.author","Lu, S."],["dc.contributor.author","Lutz, M. S."],["dc.contributor.author","Martinez, M."],["dc.contributor.author","Mazza, M."],["dc.contributor.author","Menke, S."],["dc.contributor.author","Meyer, C."],["dc.contributor.author","Morgenstern, S."],["dc.contributor.author","Mueller, J."],["dc.contributor.author","Mueller, R."],["dc.contributor.author","Quadt, A."],["dc.contributor.author","Rajagopalan, S."],["dc.contributor.author","Rave, S."],["dc.contributor.author","Schoening, A."],["dc.contributor.author","Schott, M."],["dc.contributor.author","Seitz, C."],["dc.contributor.author","Sen, S."],["dc.contributor.author","Sharma, S."],["dc.contributor.author","Wang, C."],["dc.contributor.author","Wang, C."],["dc.contributor.author","Wang, H."],["dc.contributor.author","Wang, J."],["dc.contributor.author","Wang, Y."],["dc.contributor.author","Weber, M. S."],["dc.contributor.author","Xu, T."],["dc.contributor.author","Xu, Y."],["dc.contributor.author","Zhang, B."],["dc.contributor.author","Zhang, J."],["dc.contributor.author","Zhang, K."],["dc.contributor.author","Zhang, M."],["dc.contributor.author","Zhao, Z."],["dc.contributor.author","Zhou, Y."],["dc.contributor.author","Zhu, C."],["dc.contributor.author","Zwalinski, L."],["dc.date.accessioned","2022-08-22T06:20:18Z"],["dc.date.available","2022-08-22T06:20:18Z"],["dc.date.issued","2022-08-18"],["dc.date.updated","2022-08-21T03:10:33Z"],["dc.description.abstract","Abstract\n A search for the Higgs boson decaying into a pair of charm quarks is presented. The analysis uses proton–proton collisions to target the production of a Higgs boson in association with a leptonically decaying W or Z boson. The dataset delivered by the LHC at a centre-of-mass energy of \n \n \n \n and recorded by the ATLAS detector corresponds to an integrated luminosity of 139 \n \n \n \n $\\text{ fb}^{-1}$\n \n \n \n \n fb\n \n -\n 1\n \n \n \n \n . Flavour-tagging algorithms are used to identify jets originating from the hadronisation of charm quarks. The analysis method is validated with the simultaneous measurement of WW, WZ and ZZ production, with observed (expected) significances of 2.6 (2.2) standard deviations above the background-only prediction for the \n \n \n \n $(W/Z)Z(\\rightarrow c{\\bar{c}})$\n \n \n (\n W\n /\n Z\n )\n Z\n (\n →\n c\n \n \n c\n \n \n ¯\n \n \n )\n \n \n process and 3.8 (4.6) standard deviations for the \n \n \n \n $(W/Z)W(\\rightarrow cq)$\n \n \n (\n W\n /\n Z\n )\n W\n (\n →\n c\n q\n )\n \n \n process. The \n \n \n \n $(W/Z)H(\\rightarrow c {\\bar{c}})$\n \n \n (\n W\n /\n Z\n )\n H\n (\n →\n c\n \n \n c\n \n \n ¯\n \n \n )\n \n \n search yields an observed (expected) upper limit of 26 (31) times the predicted Standard Model cross-section times branching fraction for a Higgs boson with a mass of \n \n \n \n , corresponding to an observed (expected) constraint on the charm Yukawa coupling modifier \n \n \n \n $|\\kappa _c| < 8.5~(12.4)$\n \n \n \n |\n \n \n κ\n c\n \n \n |\n <\n 8.5\n \n \n (\n 12.4\n )\n \n \n \n \n , at the 95% confidence level. A combination with the ATLAS \n \n \n \n $(W/Z)H, H\\rightarrow b{\\bar{b}}$\n \n \n (\n W\n /\n Z\n )\n H\n ,\n H\n →\n b\n \n \n b\n \n \n ¯\n \n \n \n \n analysis is performed, allowing the ratio \n \n \n \n $\\kappa _c / \\kappa _b$\n \n \n \n κ\n c\n \n /\n \n κ\n b\n \n \n \n to be constrained to less than 4.5 at the 95% confidence level, smaller than the ratio of the b- and c-quark masses, and therefore determines the Higgs-charm coupling to be weaker than the Higgs-bottom coupling at the 95% confidence level."],["dc.identifier.citation","The European Physical Journal C. 2022 Aug 18;82(8):717"],["dc.identifier.doi","10.1140/epjc/s10052-022-10588-3"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/113082"],["dc.language.iso","en"],["dc.publisher","Springer Berlin Heidelberg"],["dc.rights.holder","The Author(s)"],["dc.title","Direct constraint on the Higgs–charm coupling from a search for Higgs boson decays into charm quarks with the ATLAS detector"],["dc.type","journal_article"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","63"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Journal of High Energy Physics"],["dc.bibliographiccitation.volume","2022"],["dc.contributor.author","Aad, G."],["dc.contributor.author","Abbott, B."],["dc.contributor.author","Abbott, D. C."],["dc.contributor.author","Abed Abud, A."],["dc.contributor.author","Abeling, K."],["dc.contributor.author","Abhayasinghe, D. K."],["dc.contributor.author","Abidi, S. H."],["dc.contributor.author","Aboulhorma, A."],["dc.contributor.author","Abramowicz, H."],["dc.contributor.author","Abreu, H."],["dc.contributor.author","Achkar, B."],["dc.contributor.author","Wang, T."],["dc.contributor.author","Wang, Y."],["dc.contributor.author","Weber, M. S."],["dc.contributor.author","Weber, S. M."],["dc.contributor.author","Williams, S."],["dc.contributor.author","Xu, T."],["dc.contributor.author","Xu, Y."],["dc.contributor.author","Yan, S."],["dc.contributor.author","Yang, S."],["dc.contributor.author","Yang, T."],["dc.contributor.author","Zhang, B."],["dc.contributor.author","Zhang, J."],["dc.contributor.author","Zhang, K."],["dc.contributor.author","Zhang, M."],["dc.contributor.author","Zhang, S."],["dc.contributor.author","Zhao, T."],["dc.contributor.author","Zhao, Z."],["dc.contributor.author","Zhou, Y."],["dc.contributor.author","Zhu, C."],["dc.contributor.author","Zimmermann, S."],["dc.contributor.author","Ali, S."],["dc.contributor.author","Anthony, M. T."],["dc.contributor.author","Arnold, H."],["dc.contributor.author","Balaji, S."],["dc.contributor.author","Bauer, F."],["dc.contributor.author","Chen, J."],["dc.contributor.author","Chen, J."],["dc.contributor.author","Chen, S."],["dc.contributor.author","Chen, Y."],["dc.contributor.author","De Castro, S."],["dc.contributor.author","Degens, J."],["dc.contributor.author","Falke, S."],["dc.contributor.author","Fournier, D."],["dc.contributor.author","Gao, Y."],["dc.contributor.author","George, S."],["dc.contributor.author","Grosse-Knetter, J."],["dc.contributor.author","Han, J."],["dc.contributor.author","Han, S."],["dc.contributor.author","Harenberg, T."],["dc.contributor.author","Jin, S."],["dc.contributor.author","Kim, E."],["dc.contributor.author","Kluth, S."],["dc.contributor.author","Krüger, H."],["dc.contributor.author","Kuhl, T."],["dc.contributor.author","Lai, S."],["dc.contributor.author","Lehmann, K."],["dc.contributor.author","Li, H."],["dc.contributor.author","Li, H."],["dc.contributor.author","Li, H."],["dc.contributor.author","Li, J."],["dc.contributor.author","Li, K."],["dc.contributor.author","Li, X."],["dc.contributor.author","Liu, B."],["dc.contributor.author","Lorenz, J."],["dc.contributor.author","Lu, M."],["dc.contributor.author","Lu, S."],["dc.contributor.author","Lutz, M. S."],["dc.contributor.author","Martinez, M."],["dc.contributor.author","Mazza, M."],["dc.contributor.author","Menke, S."],["dc.contributor.author","Meyer, C."],["dc.contributor.author","Morgenstern, S."],["dc.contributor.author","Mueller, J."],["dc.contributor.author","Mueller, R."],["dc.contributor.author","Quadt, A."],["dc.contributor.author","Rajagopalan, S."],["dc.contributor.author","Rave, S."],["dc.contributor.author","Schoening, A."],["dc.contributor.author","Schott, M."],["dc.contributor.author","Seitz, C."],["dc.contributor.author","Sen, S."],["dc.contributor.author","Sharma, S."],["dc.contributor.author","Wang, C."],["dc.contributor.author","Wang, C."],["dc.contributor.author","Wang, H."],["dc.contributor.author","Wang, J."],["dc.contributor.authorgroup","The ATLAS collaboration"],["dc.date.accessioned","2022-06-20T06:17:46Z"],["dc.date.available","2022-06-20T06:17:46Z"],["dc.date.issued","2022-06-13"],["dc.date.updated","2022-06-17T08:03:53Z"],["dc.description.abstract","Cross-section measurements of top-quark pair production where the hadronically decaying top quark has transverse momentum greater than 355 GeV and the other top quark decays into ℓνb are presented using 139 fb−1 of data collected by the ATLAS experiment during proton-proton collisions at the LHC. The fiducial cross-section at s $ \\sqrt{s} $ = 13 TeV is measured to be σ = 1.267 ± 0.005 ± 0.053 pb, where the uncertainties reflect the limited number of data events and the systematic uncertainties, giving a total uncertainty of 4.2%. The cross-section is measured differentially as a function of variables characterising the t t ¯ $ t\\overline{t} $ system and additional radiation in the events. The results are compared with various Monte Carlo generators, including comparisons where the generators are reweighted to match a parton-level calculation at next-to-next-to-leading order. The reweighting improves the agreement between data and theory. The measured distribution of the top-quark transverse momentum is used to search for new physics in the context of the effective field theory framework. No significant deviation from the Standard Model is observed and limits are set on the Wilson coefficients of the dimension-six operators OtG and O tq 8 $ {O}_{tq}^{(8)} $ , where the limits on the latter are the most stringent to date."],["dc.identifier.citation","Journal of High Energy Physics. 2022 Jun 13;2022(6):63"],["dc.identifier.doi","10.1007/JHEP06(2022)063"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/111440"],["dc.language.iso","en"],["dc.rights","CC BY 4.0"],["dc.rights.holder","The Author(s)"],["dc.subject","Top Physics"],["dc.subject","Beyond Standard Model"],["dc.subject","Hadron-Hadron Scattering"],["dc.title","Measurements of differential cross-sections in top-quark pair events with a high transverse momentum top quark and limits on beyond the Standard Model contributions to top-quark pair production with the ATLAS detector at s $ \\sqrt{s} $ = 13 TeV"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","104"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Journal of High Energy Physics"],["dc.bibliographiccitation.volume","2022"],["dc.contributor.author","Aad, G."],["dc.contributor.author","Abbott, B."],["dc.contributor.author","Abbott, D. C."],["dc.contributor.author","Abed Abud, A."],["dc.contributor.author","Abeling, K."],["dc.contributor.author","Abhayasinghe, D. K."],["dc.contributor.author","Abidi, S. H."],["dc.contributor.author","Aboulhorma, A."],["dc.contributor.author","Abramowicz, H."],["dc.contributor.author","Achkar, B."],["dc.contributor.author","Albert, J."],["dc.contributor.author","Anthony, M. T."],["dc.contributor.author","Arnold, H."],["dc.contributor.author","Balaji, S."],["dc.contributor.author","Chen, Y."],["dc.contributor.author","Chowdhury, T."],["dc.contributor.author","Degens, J."],["dc.contributor.author","Falke, S."],["dc.contributor.author","Fournier, D."],["dc.contributor.author","Gao, Y."],["dc.contributor.author","Grosse-Knetter, J."],["dc.contributor.author","Harenberg, T."],["dc.contributor.author","Jin, S."],["dc.contributor.author","Kim, E."],["dc.contributor.author","Kluth, S."],["dc.contributor.author","Krüger, H."],["dc.contributor.author","Kuhl, T."],["dc.contributor.author","Lai, S."],["dc.contributor.author","Lehmann, K."],["dc.contributor.author","Li, H."],["dc.contributor.author","Li, H."],["dc.contributor.author","Li, H."],["dc.contributor.author","Li, J."],["dc.contributor.author","Li, K."],["dc.contributor.author","Li, X."],["dc.contributor.author","Liu, B."],["dc.contributor.author","Lorenz, J."],["dc.contributor.author","Lu, M."],["dc.contributor.author","Lu, S."],["dc.contributor.author","Lutz, M. S."],["dc.contributor.author","Martinez, M."],["dc.contributor.author","Mazza, M."],["dc.contributor.author","Menke, S."],["dc.contributor.author","Meyer, C."],["dc.contributor.author","Morgenstern, S."],["dc.contributor.author","Mueller, J."],["dc.contributor.author","Mueller, R."],["dc.contributor.author","Quadt, A."],["dc.contributor.author","Rajagopalan, S."],["dc.contributor.author","Rave, S."],["dc.contributor.author","Schoening, A."],["dc.contributor.author","Schott, M."],["dc.contributor.author","Seitz, C."],["dc.contributor.author","Sen, S."],["dc.contributor.author","Sharma, S."],["dc.contributor.author","Wang, C."],["dc.contributor.author","Wang, C."],["dc.contributor.author","Wang, H."],["dc.contributor.author","Wang, J."],["dc.contributor.author","Wang, Y."],["dc.contributor.author","Weber, M. S."],["dc.contributor.author","Xu, T."],["dc.contributor.author","Xu, Y."],["dc.contributor.author","Zhang, B."],["dc.contributor.author","Zhang, J."],["dc.contributor.author","Zhang, K."],["dc.contributor.author","Zhang, M."],["dc.contributor.author","Zhao, Z."],["dc.contributor.author","Zhou, Y."],["dc.contributor.author","Zhu, C."],["dc.contributor.author","Zwalinski, L."],["dc.date.accessioned","2022-08-18T12:32:47Z"],["dc.date.available","2022-08-18T12:32:47Z"],["dc.date.issued","2022-08-08"],["dc.date.updated","2022-08-14T03:14:28Z"],["dc.description.abstract","Abstract\n \n A direct search for Higgs bosons produced via vector-boson fusion and subsequently decaying into invisible particles is reported. The analysis uses 139 fb−1 of pp collision data at a centre-of-mass energy of \n \n \n \n \n \n s\n \n \n $ \\sqrt{s} $\n = 13 TeV recorded by the ATLAS detector at the LHC. The observed numbers of events are found to be in agreement with the background expectation from Standard Model processes. For a scalar Higgs boson with a mass of 125 GeV and a Standard Model production cross section, an observed upper limit of 0.145 is placed on the branching fraction of its decay into invisible particles at 95% confidence level, with an expected limit of 0.103. These results are interpreted in the context of models where the Higgs boson acts as a portal to dark matter, and limits are set on the scattering cross section of weakly interacting massive particles and nucleons. Invisible decays of additional scalar bosons with masses from 50 GeV to 2 TeV are also studied, and the derived upper limits on the cross section times branching fraction decrease with increasing mass from 1.0 pb for a scalar boson mass of 50 GeV to 0.1 pb at a mass of 2 TeV."],["dc.identifier.citation","Journal of High Energy Physics. 2022 Aug 08;2022(8):104"],["dc.identifier.doi","10.1007/JHEP08(2022)104"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112912"],["dc.language.iso","en"],["dc.publisher","Springer Berlin Heidelberg"],["dc.rights.holder","The Author(s)"],["dc.subject","Hadron-Hadron Scattering"],["dc.subject","Higgs Physics"],["dc.subject","Vector Boson Production"],["dc.title","Search for invisible Higgs-boson decays in events with vector-boson fusion signatures using 139 fb−1 of proton-proton data recorded by the ATLAS experiment"],["dc.type","journal_article"],["dspace.entity.type","Publication"]]