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 | 2021-06-05T19:59:52Z | |
dc.date.available | 2021-06-05T19:59:52Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 1434-6044 | |
dc.identifier.issn | 1434-6052 | |
dc.identifier.uri | https://doi.org/10.1140/epjc/s10052-018-5752-x | |
dc.identifier.uri | https://hdl.handle.net/20.500.12960/764 | |
dc.description | PubMed: 31007580 | en_US |
dc.description | WOS:000429589900001 | en_US |
dc.description.abstract | A study of the associated production of a Z boson and a charm quark jet (Z + c), and a comparison to production with a b quark jet (Z + b), in pp collisions at a centre-of-mass energy of 8 TeV are presented. The analysis uses a data sample corresponding to an integrated luminosity of 19.7 fb(-1), collected with the CMS detector at the CERN LHC. The Z boson candidates are identified through their decays into pairs of electrons or muons. Jets originating from heavy flavour quarks are identified using semileptonic decays of c or b flavoured hadrons and hadronic decays of charm hadrons. The measurements are performed in the kinematic region with two leptons with pT(l) > 20 GeV, vertical bar eta(l)vertical bar < 2.1, 71 < m(ll) < 111 GeV, and heavy flavour jets with p(T)(jet) > 25 GeV and vertical bar eta(jet)vertical bar < 2.5. The Z + c production cross section is measured to be sigma(pp -> Z + c + X) B(Z -> l(+)l(-)) = 8.8 +/- 0.5 (stat)+/- 0.6 (syst) pb. The ratio of the Z+c and Z+b production cross sections is measured to be sigma(pp -> Z+c+X)/sigma (pp -> Z+b+X) = 2.0 +/- 0.2 (stat)+/- 0.2 (syst). The Z+c production cross section and the cross section ratio are also measured as a function of the transverse momentum of theZ boson and of the heavy flavour jet. The measurements are compared with theoretical predictions. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Springer | en_US |
dc.relation.ispartof | European Physical Journal C | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Fizik | en_US |
dc.subject | Physics | en_US |
dc.title | Measurement of associated Z plus charm production in proton-proton collisions at root s=8TeV | 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 | 10.1140/epjc/s10052-018-5752-x | |
dc.identifier.volume | 78 | en_US |
dc.identifier.issue | 4 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |