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Title: Measurement of the cross section ratio $$\sigma_\mathrm{t \bar{t} b \bar{b}} / \sigma_\mathrm{t \bar{t} jj }$$ in pp collisions at $$\sqrt{s}$$ = 8 TeV

In this study, the first measurement of the cross section ratio σ ttbb¯ttjj is presented using a data sample corresponding to an integrated luminosity of 19.6 fb –1 collected in pp collisions at √s = 8 with the CMS detector at the LHC. Events with two leptons (e or μ ) and four reconstructed jets, including two identified as b quark jets, in the final state are selected. The ratio is determined for a minimum jet transverse momentum p T of both 20 and 40 GeV/c.
Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.
Publication Date:
OSTI Identifier:
1214414
Report Number(s):
FERMILAB-PUB-14-570-CMS; CERN-PH-EP-2014-249; CMS-TOP-13-010
Journal ID: ISSN 0370-2693; arXiv eprint number arXiv:1411.5621; TRN: US1601016
Grant/Contract Number:
AC02-07CH11359
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 746; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
CMS Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CMS; physics; top physics