Precision measurement of the top-quark mass in lepton+jets final states

Journal Article · Thu Jul 17 00:00:00 EDT 2014 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.113.032002· OSTI ID:1171769

Abazov, Victor Mukhamedovich ^[1]

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1. Joint Institute for Nuclear Research, Dubna (Russia). et al.

We measure the mass of the top quark in lepton$$+$$jets final states using the full sample of $$p\bar{p}$$ collision data collected by the D0 experiment in Run II of the Fermilab Tevatron Collider at $$\sqrt s=1.96 $$TeV, corresponding to $$9.7 {\rm fb}^{-1}$$ of integrated luminosity. We use a matrix element technique that calculates the probabilities for each event to result from $$t\bar t$$ production or background. The overall jet energy scale is constrained in situ by the mass of the $$W$$ boson. We measure $$m_t=174.98\pm0.76$$ GeV. In conclusion, this constitutes the most precise single measurement of the top-quark mass.

• 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), High Energy Physics (HEP)
• Contributing Organization: D0
• OSTI ID: 1171769
• Report Number(s): FERMILAB-PUB-14-123-E; arXiv:1405.1756; PRLTAO; oai:inspirehep.net:1294933
• Journal Information: Physical Review Letters, Vol. 113, Issue 3; Related Information: Submitted to Phys. Rev. D, 40 pages, detailed documentation of Phys. Rev. Lett. 113, 032002 (2014) [arXiv:1405.1756]; ISSN 0031-9007
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

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