Precise measurement of the top-quark mass from lepton+jets events at D0

Journal Article · Tue Aug 09 00:00:00 EDT 2011 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.84.032004· OSTI ID:1016215

Abazov, Victor Mukhamedovich ^[1]

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1. et al.

We report a measurement of the mass of the top quark in lepton+jets final states of pp&3772; → tt̄ data corresponding to 2.6 fb^-1 of integrated luminosity collected at the D0 experiment at the Fermilab Tevatron Collider. Using a matrix element method, we combine an in situ jet energy calibration with the standard jet energy scale derived in studies of Γ + jet and dijet events and employ a novel flavor-dependent jet response correction to measure a top-quark mass of m_t = 176.01 ± 1.64 GeV. Combining this result with a previous result obtained on an independent data set, we measure a top-quark mass of m_t = 174.94 ± 1.49 GeV for a total integrated luminosity of 3.6 fb^-1.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Contributing Organization: D0
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1016215
• Report Number(s): FERMILAB-PUB-11-240-E; arXiv:1105.6287; oai:inspirehep.net:902034; TRN: US1103022
• Journal Information: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 84, Issue 3; ISSN 1550-7998
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CALIBRATION
FERMILAB TEVATRON
LUMINOSITY
MATRIX ELEMENTS
T QUARKS
Experiment-HEP