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Measurement of the Jet Mass Distribution and Top Quark Mass in Hadronic Decays of Boosted Top Quarks in pp Collisions at √s = 13 TeV

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dc.contributor.author CMS Collaboration en_US
dc.contributor.author Sirunyan, A. M. en_US
dc.contributor.author DUBE, SOURABH en_US
dc.contributor.author HEGDE, V. en_US
dc.contributor.author KANSAL, B. en_US
dc.contributor.author KAPOOR, A. en_US
dc.contributor.author KOTHEKAR, K. en_US
dc.contributor.author PANDEY, S. en_US
dc.contributor.author RANE, A. en_US
dc.contributor.author RASTOGI, A. en_US
dc.contributor.author SHARMA, SEEMA et al. en_US
dc.date.accessioned 2020-06-05T06:07:11Z
dc.date.available 2020-06-05T06:07:11Z
dc.date.issued 2020-05 en_US
dc.identifier.citation Physical Review Letters, 124(20). en_US
dc.identifier.issn 0031-9007 en_US
dc.identifier.issn 1079-7114 en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/4658
dc.identifier.uri https://doi.org/10.1103/PhysRevLett.124.202001 en_US
dc.description.abstract A measurement is reported of the jet mass distribution in hadronic decays of boosted top quarks produced in pp collisions at √s=13 TeV .The data were collected with the CMS detector at the LHC and correspond to an integrated luminosity of 35.9 fb − 1. The measurement is performed in the lepton + jets channel of t¯t events, where the lepton is an electron or muon. The products of the hadronic top quark decay t→b W→b q¯q′ are reconstructed as a single jet with transverse momentum larger than 400 GeV. The t¯t cross section as a function of the jet mass is unfolded at the particle level and used to extract a value of the top quark mass of 172.6 ± 2.5 GeV. A novel jet reconstruction technique is used for the first time at the LHC, which improves the precision by a factor of 3 relative to an earlier measurement. This highlights the potential of measurements using boosted top quarks, where the new technique will enable future precision measurements. en_US
dc.language.iso en en_US
dc.publisher American Physical Society en_US
dc.subject Large detector systems for particle and astroparticle physics en_US
dc.subject Particle tracking detectors (Solid-state detectors) en_US
dc.subject Radiation-hard detectors en_US
dc.subject Si microstrip and pad detectors en_US
dc.subject TOC-JUN-2020 en_US
dc.subject 2020 en_US
dc.subject 2020-JUN-WEEK1 en_US
dc.title Measurement of the Jet Mass Distribution and Top Quark Mass in Hadronic Decays of Boosted Top Quarks in pp Collisions at √s = 13 TeV en_US
dc.type Article en_US
dc.contributor.department Dept. of Physics en_US
dc.identifier.sourcetitle Physical Review Letters en_US
dc.publication.originofpublisher Foreign en_US


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