2026-10-18T23:15:53Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/request

oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/129352026-10-18T20:27:47Zopenairedrivercom_ebyu_10000col_ebyu_10001

Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisionsTumasyan, A.Adam, W.Andrejkovic, J.W.Bergauer, T.Chatterjee, S.Dragicevic, M.Escalante Del Valle, A.Frühwirth, R.Jeitler, M.Krammer, N.Lechner, L.Liko, D.Mikulec, I.Paulitsch, P.Pitters, F.M.Schieck, J.Schöfbeck, R.Spanring, M.Templ, S.Waltenberger, W.Wulz, C.-E.Chekhovsky, V.Litomin, A.Makarenko, V.Darwish, M.R.De Wolf, E.A.Janssen, T.Kello, T.Lelek, A.Rejeb Sfar, H.Van Mechelen, P.Van Putte, S.Van Remortel, N.Blekman, F.Bols, E.S.D’Hondt, J.Delcourt, M.El Faham, H.Lowette, S.Moortgat, S.Morton, A.Müller, D.Sahasransu, A.R.Tavernier, S.Van Doninck, W.Van Mulders, P.Beghin, D.Bilin, B.Clerbaux, B.De Lentdecker, G.Hadron-Hadron ScatteringJet PhysicsMeasurements of jet substructure describing the composition of quark- and gluon-initiated jets are presented. Proton-proton (pp) collision data at s = 13 TeV collected with the CMS detector are used, corresponding to an integrated luminosity of 35.9 fb−1. Generalized angularities are measured that characterize the jet substructure and distinguish quark- and gluon-initiated jets. These observables are sensitive to the distributions of transverse momenta and angular distances within a jet. The analysis is performed using a data sample of dijet events enriched in gluon-initiated jets, and, for the first time, a Z+jet event sample enriched in quark-initiated jets. The observables are measured in bins of jet transverse momentum, and as a function of the jet radius parameter. Each measurement is repeated applying a “soft drop” grooming procedure that removes soft and large angle radiation from the jet. Using these measurements, the ability of various models to describe jet substructure is assessed, showing a clear need for improvements in Monte Carlo generators. [Figure not available: see fulltext.]. © 2022, The Author(s).Springer Science and Business Media Deutschland GmbH2022Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/12935https://doi.org/10.1007/jhep01(2022)1881029-8479enJournal of High Energy Physicsinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/12935