Erratum: Next-to-leading order corrections to heavy flavor production in longitudinally polarized photon-nucleon collisions [Phys. Rev. D62, 114509 (2000)]

Abstract

A complete next-to-leading order calculation of longitudinally polarized heavy quark photoproduction is presented. All results of the purturbative calculation are given in detail. For reactions and energies of interest cross sections differential in the transverse momentum and rapidity of the heavy quark, total cross sections and the corresponding asymmetries are given. Errors in the asymmetries are estimated and the possibility to distinguish between various scerarios of the polarized gluon distribution is discussed. Our results are compared with other related publications.

Inclusive D production in $\gamma \gamma$ collisions: including the single-resolved contribution with massive quarks

“…Therefore, only the non-Abelian part of the NLO corrections to the photon-gluon fusion cross section and the cross section for γ + q → c + c + q have to be investigated. The single-inclusive charm cross section with m = 0 has been calculated recently by Merebashvili et al [10]. We can use these results to derive the limit m → 0 and establish the subtraction terms by comparing to the MS factorized cross section derived in [11], in the same way as we did in [8] for the Abelian part.…”

Collinear subtractions in hadroproduction of heavy quarks

“…(ii) In a publication by two of us [32], subtraction terms for the non-Abelian part of the process γg → QQg have been derived by comparing the zero-mass limit of Ref. [43] with the massless theory of Ref. [44], which do not meet the expectations of mass factorization in Sec.…”

Inclusive photoproduction of D *±-mesons at next-to-leading order in the general-mass variable-flavor-number scheme

“…[8], two of us found in the calculation of the massless limit of the formulas published in Ref. [25] unexpected subtraction terms ∆c 1 , ∆c 1 , ∆c 2 , and ∆c 11 given in Eqs. (43), (45), (47), and (57) of Ref.…”

“…[8]. In the non-Abelian part, the finite subtraction terms were calculated by comparing the FFNS calculation by Merebashvili et al [25] with the ZM-VFNS calculation by Gordon [26]. In Ref.…”