Schumann, Steffen

[["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Journal of High Energy Physics"],["dc.bibliographiccitation.volume","2019"],["dc.contributor.author","Marzani, Simone"],["dc.contributor.author","Reichelt, Daniel"],["dc.contributor.author","Schumann, Steffen"],["dc.contributor.author","Soyez, Gregory"],["dc.contributor.author","Theeuwes, Vincent"],["dc.date.accessioned","2020-12-10T14:07:49Z"],["dc.date.available","2020-12-10T14:07:49Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1007/JHEP11(2019)179"],["dc.identifier.eissn","1029-8479"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17145"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/70306"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.relation.orgunit","Fakultät für Physik"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Fitting the strong coupling constant with soft-drop thrust"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","131"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of High Energy Physics"],["dc.bibliographiccitation.volume","2022"],["dc.contributor.author","Reichelt, Daniel"],["dc.contributor.author","Caletti, Simone"],["dc.contributor.author","Fedkevych, Oleh"],["dc.contributor.author","Marzani, Simone"],["dc.contributor.author","Schumann, Steffen"],["dc.contributor.author","Soyez, Gregory"],["dc.date.accessioned","2022-05-02T08:09:20Z"],["dc.date.available","2022-05-02T08:09:20Z"],["dc.date.issued","2022"],["dc.date.updated","2022-07-29T11:35:15Z"],["dc.description.abstract","A bstract We compute resummed and matched predictions for jet angularities in hadronic dijet and Z +jet events with and without grooming the candidate jets using the SoftDrop technique. Our theoretical predictions also account for non-perturbative corrections from the underlying event and hadronisation through parton-to-hadron level transfer matrices extracted from dedicated Monte Carlo simulations with Sherpa. Thanks to this approach we can account for non-perturbative migration effects in both the angularities and the jet transverse momentum. We compare our predictions against recent measurements from the CMS experiment. This allows us to test the description of quark- and gluon-jet enriched phase-space regions separately. We supplement our study with Sherpa results based on the matching of NLO QCD matrix elements with the parton shower. Both theoretical predictions offer a good description of the data, within the experimental and theoretical uncertainties. The latter are however sizeable, motivating higher-accuracy calculations."],["dc.description.abstract","A bstract We compute resummed and matched predictions for jet angularities in hadronic dijet and Z +jet events with and without grooming the candidate jets using the SoftDrop technique. Our theoretical predictions also account for non-perturbative corrections from the underlying event and hadronisation through parton-to-hadron level transfer matrices extracted from dedicated Monte Carlo simulations with Sherpa. Thanks to this approach we can account for non-perturbative migration effects in both the angularities and the jet transverse momentum. We compare our predictions against recent measurements from the CMS experiment. This allows us to test the description of quark- and gluon-jet enriched phase-space regions separately. We supplement our study with Sherpa results based on the matching of NLO QCD matrix elements with the parton shower. Both theoretical predictions offer a good description of the data, within the experimental and theoretical uncertainties. The latter are however sizeable, motivating higher-accuracy calculations."],["dc.identifier.citation","Journal of High Energy Physics. 2022 Mar 21;2022(3):131"],["dc.identifier.doi","10.1007/JHEP03(2022)131"],["dc.identifier.pii","18025"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/107356"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-561"],["dc.publisher","Springer Berlin Heidelberg"],["dc.relation.eissn","1029-8479"],["dc.rights.holder","The Author(s)"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject","Jets and Jet Substructure"],["dc.subject","Resummation"],["dc.subject","Parton Shower"],["dc.title","Phenomenology of jet angularities at the LHC"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","106"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of High Energy Physics"],["dc.contributor.author","Gerwick, Erik"],["dc.contributor.author","Schumann, Steffen"],["dc.contributor.author","Hoeche, Stefan"],["dc.contributor.author","Marzani, Simone"],["dc.date.accessioned","2018-11-07T10:00:52Z"],["dc.date.available","2018-11-07T10:00:52Z"],["dc.date.issued","2015"],["dc.description.abstract","We present a new framework for computing resummed and matched distributions in processes with many hard QCD jets. The intricate color structure of soft gluon emission at large angles renders resummed calculations highly non-trivial in this case. We automate all ingredients necessary for the color evolution of the soft function at next-to-leading- logarithmic accuracy, namely the selection of the color bases and the projections of color operators and Born amplitudes onto those bases. Explicit results for all QCD processes with up to 2 -> 5 partons are given. We also devise a new tree-level matching scheme for resummed calculations which exploits a quasi-local subtraction based on the Catani-Seymour dipole formalism. We implement both resummation and matching in the Sherpa event generator. As a proof of concept, we compute the resummed and matched transverse-thrust distribution for hadronic collisions."],["dc.identifier.doi","10.1007/JHEP02(2015)106"],["dc.identifier.isi","000349914200001"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11623"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/37899"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation","info:eu-repo/grantAgreement/EC/FP7/315877/EU//MCNETITN"],["dc.relation.issn","1029-8479"],["dc.relation.orgunit","Fakultät für Physik"],["dc.rights","CC BY 4.0"],["dc.title","Soft evolution of multi-jet final states"],["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.artnumber","76"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Journal of High Energy Physics"],["dc.bibliographiccitation.volume","2021"],["dc.contributor.author","Caletti, Simone"],["dc.contributor.author","Fedkevych, Oleh"],["dc.contributor.author","Marzani, Simone"],["dc.contributor.author","Reichelt, Daniel"],["dc.contributor.author","Schumann, Steffen"],["dc.contributor.author","Soyez, Gregory"],["dc.contributor.author","Theeuwes, Vincent"],["dc.date.accessioned","2021-08-12T07:45:33Z"],["dc.date.accessioned","2022-08-18T12:31:34Z"],["dc.date.available","2021-08-12T07:45:33Z"],["dc.date.available","2022-08-18T12:31:34Z"],["dc.date.issued","2021-07-13"],["dc.date.updated","2022-07-29T11:32:33Z"],["dc.description.abstract","Abstract\r\n \r\n We present a phenomenological study of angularities measured on the highest transverse-momentum jet in LHC events that feature the associate production of a Z boson and one or more jets. In particular, we study angularity distributions that are measured on jets with and without the SoftDrop grooming procedure. We begin our analysis exploiting state-of-the-art Monte Carlo parton shower simulations and we quantitatively assess the impact of next-to-leading order (NLO) matching and merging procedures. We then move to analytic resummation and arrive at an all-order expression that features the resummation of large logarithms at next-to-leading logarithmic accuracy (NLL) and is matched to the exact NLO result. Our predictions include the effect of soft emissions at large angles, treated as a power expansion in the jet radius, and non-global logarithms. Furthermore, matching to fixed-order is performed in such a way to ensure what is usually referred to as NLL′ accuracy. Our results account for realistic experimental cuts and can be easily compared to upcoming measurements of jet angularities from the LHC collaborations."],["dc.identifier.citation","Journal of High Energy Physics. 2021 Jul 13;2021(7):76"],["dc.identifier.doi","10.1007/JHEP07(2021)076"],["dc.identifier.pii","16174"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/88494"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112901"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-448"],["dc.publisher","Springer Berlin Heidelberg"],["dc.relation.eissn","1029-8479"],["dc.rights.holder","The Author(s)"],["dc.subject","Jets"],["dc.subject","NLO Computations"],["dc.title","Jet angularities in Z+jet production at the LHC"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]