dc.contributor.author | Sirunyan, A. M. | |
dc.contributor.author | Tumasyan, A. | |
dc.contributor.author | Adam, W. | |
dc.contributor.author | Ambrogi, F. | |
dc.contributor.author | Asilar, E. | |
dc.contributor.author | Bergauer, T. | |
dc.contributor.author | Özdemir, Kadri | |
dc.contributor.author | CMS Collaboration | |
dc.date.accessioned | 2021-06-05T19:59:47Z | |
dc.date.available | 2021-06-05T19:59:47Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 1748-0221 | |
dc.identifier.uri | https://doi.org/10.1088/1748-0221/13/05/P05011 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12960/731 | |
dc.description | WOS:000431716900005 | en_US |
dc.description.abstract | Many measurements and searches for physics beyond the standard model at the LHC rely on the efficient identification of heavy-flavour jets, i.e. jets originating from bottom or charm quarks. In this paper, the discriminating variables and the algorithms used for heavy-flavour jet identification during the first years of operation of the CMS experiment in proton-proton collisions at a centre-of-mass energy of 13 TeV, are presented. Heavy-flavour jet identification algorithms have been improved compared to those used previously at centre-of-mass energies of 7 and 8 TeV. For jets with transverse momenta in the range expected in simulated t (t) over bar events, these new developments result in an efficiency of 68% for the correct identification of a b jet for a probability of 1% of misidentifying a light-flavour jet. The improvement in relative efficiency at this misidentification probability is about 15%, compared to previous CMS algorithms. In addition, for the first time algorithms have been developed to identify jets containing two b hadrons in Lorentz-boosted event topologies, as well as to tag c jets. The large data sample recorded in 2016 at a centre-of-mass energy of 13 TeV has also allowed the development of new methods to measure the efficiency and misidentification probability of heavy-flavour jet identification algorithms. The b jet identification efficiency is measured with a precision of a few per cent at moderate jet transverse momenta (between 30 and 300 GeV) and about 5% at the highest jet transverse momenta (between 500 and 1000 GeV). | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Iop Publishing Ltd | en_US |
dc.relation.ispartof | Journal on Instrumentation | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Particle İdentification Methods | en_US |
dc.subject | Pattern Recognition, Cluster Finding, Calibration And Fitting Methods | en_US |
dc.subject | Performance Of High Energy Physics Detectors | en_US |
dc.title | Identification of heavy-flavour jets with the CMS detector in pp collisions at 13 TeV | en_US |
dc.type | article | en_US |
dc.authorid | 0000-0002-0103-1488 | |
dc.department | Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümü | en_US |
dc.contributor.institutionauthor | Özdemir, Kadri | |
dc.identifier.doi | 10.1088/1748-0221/13/05/P05011 | |
dc.identifier.volume | 13 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |