The CMS Collaboration , Sirunyan , A M , Eerola , P , Kirschenmann , H , Pekkanen , J , Voutilainen , M , Havukainen , J , Heikkilä , J K , Järvinen , T , Karimäki , V , Kinnunen , R , Lampén , T , Lassila-Perini , K , Laurila , S , Lehti , S , Lindén , T , Luukka , P , Mäenpää , T , Siikonen , H , Tuominen , E , Tuominiemi , J & Tuuva , T 2018 , ' Measurement of jet substructure observables in t(t)over-bar events from proton-proton collisions at root s=13 TeV ' , Physical Review D , vol. 98 , no. 9 , 092014 . https://doi.org/10.1103/PhysRevD.98.092014
Title: | Measurement of jet substructure observables in t(t)over-bar events from proton-proton collisions at root s=13 TeV |
Author: | The CMS collaboration; Sirunyan, A. M.; Eerola, P.; Kirschenmann, H.; Pekkanen, J.; Voutilainen, M.; Havukainen, J.; Heikkilä, J. K.; Järvinen, T.; Karimäki, V.; Kinnunen, R.; Lampén, T.; Lassila-Perini, K.; Laurila, S.; Lehti, S.; Lindén, T.; Luukka, P.; Mäenpää, T.; Siikonen, H.; Tuominen, E.; Tuominiemi, J.; Tuuva, T. |
Contributor organization: | Department of Physics Helsinki Institute of Physics |
Date: | 2018-11-29 |
Language: | eng |
Number of pages: | 36 |
Belongs to series: | Physical Review D |
ISSN: | 2470-0010 |
DOI: | https://doi.org/10.1103/PhysRevD.98.092014 |
URI: | http://hdl.handle.net/10138/279391 |
Abstract: | A measurement of jet substructure observables is presented using t (t) over bar events in the lepton + jets channel from proton-proton collisions at root s = 13 TeV recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb(-1). Multiple jet substructure observables are measured for jets identified as bottom, light-quark, and gluon jets, as well as for inclusive jets (no flavor information). The results are unfolded to the particle level and compared to next-to-leading-order predictions from POWHEG interfaced with the parton shower generators PYTHIA 8 and HERWIG 7, as well as from SHERPA 2 and DIRE 2. Avalue of the strong coupling at the Z boson mass, alpha(S)(m(Z)) = 0.115(-0.013)(+0.015), is extracted from the substructure data at leading-order plus leading-log accuracy. |
Subject: |
114 Physical sciences
PLUS PLUS FRAGMENTATION QCD DISTRIBUTIONS ANNIHILATION MOMENTS QUARKS MODEL HERA |
Peer reviewed: | Yes |
Rights: | cc_by |
Usage restriction: | openAccess |
Self-archived version: | publishedVersion |
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