期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 8, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP08(2010)048
关键词
Quark Masses and SM Parameters; NLO Computations; Hadronic Colliders
资金
- NSF [PHY-0855365]
- Johns Hopkins University
- Division Of Physics
- Direct For Mathematical & Physical Scien [855365] Funding Source: National Science Foundation
It is anticipated that a number of techniques to measure the top quark mass at the LHC will yield m(top) with uncertainties of about 0.5-1 percent. These uncertainties are mostly theoretical; they are usually estimated using parton shower Monte Carlo programs whose reliability at this level of precision is difficult to assess. The goal of this paper is to contrast those estimates with the results of NLO QCD computations for a few observables, often discussed in the context of high-precision top quark mass measurements at the LHC. In particular, we study the NLO QCD corrections to the invariant mass distribution of a charged lepton and a B-meson in lepton+jets channels. In the dilepton channel we investigate the invariant mass distribution of a charged lepton and a b-jet, the average energy of the two leptons and the average energy of the b-jets from top decays.
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