Top Mass Measurements from Jets and the Tevatron Top-Quark Mass

Details Top Mass Measurements from Jets and the Tevatron Top-Quark Mass Top Mass Measurements from Jets and the Tevatron Top-Quark Mass

2008-08-04

arxiv.org/abs/0808.0222v2

Nucl.Phys.Proc.Suppl.185:220-226,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, proceedings for the International Workshop on Top Quark Physics, and the 2nd Workshop on Theory, Phenomenology and Ex

Scientific paper

10.1016/j.nuclphysbps.2008.10.02

Theoretical issues are discussed for the measurement of the top-mass using jets, including perturbative and non-perturbative effects that relate experimental observables to the Lagrangian mass, and appropriate choices for mass schemes. Full account for these issues is given for e+e--> t-tbar using a factorization theorem for event shapes for massive quarks. Implications for the Tevatron top-mass measurement are discussed. A mass-scheme, the "MSR-mass", is introduced which allows for a precise description of observables sensitive to scales R << m, but at the same time does not introduce perturbative matching uncertainties in conversion to the MSbar mass.

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