Top quark threshold production in γγ collision in the next-to-leading order

1998/10/31 by Alexander A. Penin, A. A. Penin, A. A. Pivovarov +1 · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/s0550-3213(99)00205-9

published as Nucl.Phys. B550 (1999) 375-396 · 27 pages Latex, misprints corrected

arxiv created 1999/04/23 · openalex publication_date 1999/06/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The total cross section of the top quark-antiquark pair production near threshold in γγ collision is computed analytically up to the next-to-leading order in perturbative and nonrelativistic expansion for general photon helicity. The approximation includes the first order corrections in the strong coupling constant and the heavy quark velocity to the nonrelativistic Coulomb approximation.

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