Schumann, Steffen

[["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","142"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Journal of High Energy Physics"],["dc.bibliographiccitation.volume","2021"],["dc.contributor.author","Baron, Jeremy"],["dc.contributor.author","Reichelt, Daniel"],["dc.contributor.author","Schumann, Steffen"],["dc.contributor.author","Schwanemann, Niklas"],["dc.contributor.author","Theeuwes, Vincent"],["dc.date.accessioned","2021-09-01T06:42:46Z"],["dc.date.accessioned","2022-08-16T12:35:32Z"],["dc.date.available","2021-09-01T06:42:46Z"],["dc.date.available","2022-08-16T12:35:32Z"],["dc.date.issued","2021-07-20"],["dc.date.updated","2022-07-29T11:32:34Z"],["dc.description.abstract","Soft-drop grooming of hadron-collision final states has the potential to significantly reduce the impact of non-perturbative corrections, and in particular the underlying-event contribution. This eventually will enable a more direct comparison of accurate perturbative predictions with experimental measurements. In this study we consider soft-drop groomed dijet event shapes. We derive general results needed to perform the resummation of suitable event-shape variables to next-to-leading logarithmic (NLL) accuracy matched to exact next-to-leading order (NLO) QCD matrix elements. We compile predictions for the transverse-thrust shape accurate to NLO + NLL′ using the implementation of the Caesar formalism in the Sherpa event generator framework. We complement this by state-of-the-art parton- and hadron-level predictions based on NLO QCD matrix elements matched with parton showers. We explore the potential to mitigate non-perturbative corrections for particle-level and track-based measurements of transverse thrust by considering a wide range of soft-drop parameters. We find that soft-drop grooming indeed is very efficient in removing the underlying event. This motivates future experimental measurements to be compared to precise QCD predictions and employed to constrain non-perturbative models in Monte-Carlo simulations."],["dc.identifier.citation","Journal of High Energy Physics. 2021 Jul 20;2021(7):142"],["dc.identifier.doi","10.1007/JHEP07(2021)142"],["dc.identifier.pii","16305"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/89139"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112734"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-455"],["dc.relation.eissn","1029-8479"],["dc.rights","CC BY 4.0"],["dc.rights.holder","The Author(s)"],["dc.subject","Resummation"],["dc.subject","Perturbative QCD"],["dc.title","Soft-drop grooming for hadronic event shapes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]