Measurements Of T¯Tcross Sections İn Association With B Jets And İnclusive Jets And Their Ratio Using Dilepton Final States İn Pp Collisions At ?S=13 Tev

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Küçük Resim

Tarih

2018

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Elsevier

Erişim Hakkı

Özet

The cross sections for the production of t¯tb¯band t¯tjjevents and their ratio ?t¯tb¯ b/?t¯tjjare measured using data corresponding to an integrated luminosity of 2.3fb?1collected in pp collisions at ?s=13TeVwith the CMS detector at the LHC. Events with two leptons (eor ?) and at least four reconstructed jets, including at least two identified as b quark jets, in the final state are selected. In the full phase space, the measured ratio is 0.022 ±0.003 (stat)±0.006 (syst), the cross section ?t¯tb¯ bis 4.0 ±0.6 (stat)±1.3 (syst)pband ?t¯tjjis 184 ±6 (stat)±33 (syst)pb. The measurements are compared with the standard model expectations obtained from apowhegsimulation at next-to-leading-order interfaced with pythia.

Açıklama

Anahtar Kelimeler

CMS, Physics, TOP QUARK

Kaynak

WoS Q Değeri

Q2

Scopus Q Değeri

Q1

Cilt

Sayı

Künye

Physics Letters B 776 (2018) 355–378