Hard approximation in two-particle hadronic decays of B_c at large recoils

1996/05/31 by V. V. Kiselev, Kiselev, V. V.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9605451

7 pages, 1 eps-figure, eqs.(4), (6) corrected, numerical estimates changed

openalex publication_date 1996/05/31 · arxiv created 2001/10/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The two-particle decays of B_c⁺ to psi pi⁺(rho⁺) and B_c⁺ to eta_c pi⁺(rho⁺) are considered in a way taking into account a soft binding of quarks in the heavy quarkonia and a hard gluon exchange between the constituents at large recoil momenta of psi(eta_c). An approximate double enhancement of the amplitudes is found because of the nonspectator t-channel contribution.

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