Measurement of the top-quark mass in the tt¯ dilepton channel using the full CDF Run II data set
- Univ. of Helsinki, Helsinki (Finland). et al.
We present a measurement of the top-quark mass in events containing two leptons (electrons or muons) with a large transverse momentum, two or more energetic jets, and a transverse-momentum imbalance. We use the full proton-antiproton collision data set collected by the CDF experiment during the Fermilab Tevatron Run II at center-of-mass energy √s = 1.96 TeV, corresponding to an integrated luminosity of 9.1 fb–1. A special observable is exploited for an optimal reduction of the dominant systematic uncertainty, associated with the knowledge of the absolute energy of the hadronic jets. The distribution of this observable in the selected events is compared to simulated distributions of tt¯ dilepton signal and background. We measure a value for the top-quark mass of 171.5±1.9 (stat)±2.5 (syst) GeV/c2.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CDF
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1212716
- Alternate ID(s):
- OSTI ID: 1209184
- Report Number(s):
- FERMILAB-PUB-15-190-E; arXiv:1505.00500; PRVDAQ; 1366021
- Journal Information:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 92, Issue 3; ISSN 1550-7998
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Measurement of the forward–backward asymmetry of top-quark and antiquark pairs using the full CDF Run II data set
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journal | June 2016 |
Measurement of the forward–backward asymmetry of top-quark and antiquark pairs using the full CDF Run II data set
|
text | January 2016 |
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