Measurement of the inclusive tt production cross section in pp collisions at [?] = 1.96 TeV and determination of the top quark pole mass

Authors

V. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Daniel R. Claes, University of Nebraska-LincolnFollow
Kayle DeVaughan, University of Nebraska-Lincoln
Aaron Dominguez, University of Nebraska-LincolnFollow
M. Eads, University of Nebraska-Lincoln, Lincoln,Follow
Ioannis Katsanos, University of Nebraska-LincolnFollow
Sudhir Malik, University of Nebraska-LincolnFollow
Gregory Snow, University of Nebraska-LincolnFollow
M. Voutilainen, University of Nebraska-Lincoln
D0 Collaboration

Document Type

Article

Date of this Version

2016

Citation

PHYSICAL REVIEW D 94, 092004 (2016)

Comments

© 2016 American Physical Society

DOI: 10.1103/PhysRevD.94.092004

Abstract

The inclusive cross section of top quark-antiquark pairs produced in pp collisions at [?] = 1.96 TeV is measured in the lepton + jets and dilepton decay channels. The data sample corresponds to 9.7 fb⁻¹ of integrated luminosity recorded with the D0 detector during Run II of the Fermilab Tevatron Collider. Employing multivariate analysis techniques we measure the cross section in the two decay channels and we perform a combined cross section measurement. For a top quark mass of 172.5 GeV, we measure a combined inclusive top quark-antiquark pair production cross section of σ_tt = 7.26 ± 0.13(stat)[?] (syst) pb which is consistent with standard model predictions. We also perform a likelihood fit to the measured and predicted top quark mass dependence of the inclusive cross section, which yields a measurement of the pole mass of the top quark. The extracted value is m_t = 172.8 ± 1.1(theo)[?] (exp) GeV.