Measurements of t ̄t cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at √s = 13 TeV
Name
1-s2.0-S0370269317309358-main.pdf
Size
958.84 KB
Format
Unknown
Checksum (MD5)
059f2153ceed7ee3c13ad0df87953a1a
Author(s)
The CMS Collaboration
Abercrombie, Daniel Robert
Allen, Branden
Azzolini, Virginia
Barbieri, Richard Alexander
Baty, Austin Alan
Bi, Ran
Bierwagen, Katharina
Brandt, Stephanie Akemi
Busza, Wit
Date Issued
November 2017
Journal
Physics Letters B
Publisher
Elsevier BV
Citation
Sirunyan, A.M., A. Tumasyan, W. Adam, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, et al. “Measurements Oftt¯cross Sections in Association with b Jets and Inclusive Jets and Their Ratio Using Dilepton Final States in Pp Collisions ats=13TeV.” Physics Letters B 776 (January 2018): 355–378. doi:10.1016/j.physletb.2017.11.043.
Version
Final published version
Abstract
© 2017 The Author The cross sections for the production of tt¯bb¯ and tt¯jj events and their ratio σtt¯bb¯/σtt¯jjare measured using data corresponding to an integrated luminosity of 2.3 fb−1collected in pp collisions at s=13 TeV with the CMS detector at the LHC. Events with two leptons (e or μ) 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 σtt¯bb¯is 4.0±0.6(stat)±1.3(syst) pb and σtt¯jjis 184±6(stat)±33(syst) pb. The measurements are compared with the standard model expectations obtained from a POWHEG simulation at next-to-leading-order interfaced with PYTHIA.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.PHYSLETB.2017.11.043
