Measurement of jet multiplicity distributions in t(t)over-bar production in pp collisions at √s=7TeV
Yazarlar (1)
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | European Physical Journal C (Q1) | ||
| Dergi ISSN | 1434-6044 Dergi Bilgileri (2014) | ||
| Makale Dili | İngilizce | Basım Tarihi | 08-2014 |
| Cilt / Sayı / Sayfa | 74 / 8 / 1–29 | DOI | 10.1140/epjc/s10052-014-3014-0 |
| Makale Linki | https://researchportal.vub.be/en/publications/measurement-of-jet-multiplicity-distributions-in-t-t-bar-producti/ | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+ jets decay channels using data corresponding to an integrated luminosity of 5.0 inverse femtobarns. Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the t t-bar production is determined as a function of the additional jet multiplicity in the lepton+ jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed. |
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