We reexamine the top quark production cross section at the Tevatron and LHC, in the light of recent progress on the resummation of logarithmic soft gluon corrections, We find that resummation effects are much smaller than previously thought. We also compute Coulombic threshold effects, and find them negligible. We update the discussion of uncertainties due to scale dependence, the value of the strong coupling constant, and the parton density parametrization. Our current best estimate of the top production cross section at the Tevatron and its error is sigma(m(t) = 175 GeV) = 4.75(-0.62)(+0.73).

Catani, S., Mangano, M., Nason, P., Trentadue, L. (1996). The top cross section in hadronic collisions. PHYSICS LETTERS. SECTION B, 378(1-4), 329-336 [10.1016/0370-2693(96)00387-5].

The top cross section in hadronic collisions

Nason, P;
1996

Abstract

We reexamine the top quark production cross section at the Tevatron and LHC, in the light of recent progress on the resummation of logarithmic soft gluon corrections, We find that resummation effects are much smaller than previously thought. We also compute Coulombic threshold effects, and find them negligible. We update the discussion of uncertainties due to scale dependence, the value of the strong coupling constant, and the parton density parametrization. Our current best estimate of the top production cross section at the Tevatron and its error is sigma(m(t) = 175 GeV) = 4.75(-0.62)(+0.73).
Articolo in rivista - Articolo scientifico
Heavy-Quark Production; Hard Processes; QCD; Exponentiation; Resummation
English
1996
378
1-4
329
336
none
Catani, S., Mangano, M., Nason, P., Trentadue, L. (1996). The top cross section in hadronic collisions. PHYSICS LETTERS. SECTION B, 378(1-4), 329-336 [10.1016/0370-2693(96)00387-5].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/223123
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