J/ψ plus prompt-photon associated production in two-photon collisions at next-to-leading order -: art. no. 014016

被引：32
|
作者：
Klasen, M
Kniehl, BA
Mihaila, LN
Steinhauser, M
机构：
[1] Univ Grenoble 1, Lab Phys Subatom & Cosmol, F-38026 Grenoble, France
[2] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany
来源：
PHYSICAL REVIEW D | 2005年 / 71卷 / 01期
关键词：
D O I：
10.1103/PhysRevD.71.014016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We calculate the cross section of J/psi plus prompt-photon inclusive production in gammagamma collisions at next-to-leading order within the factorization formalism of nonrelativistic quantum chromodynamics (NRQCD) focusing on direct photoproduction. Apart from direct J/psi production, we also include the feed-down from directly produced chi(cJ) and psi' mesons. We discuss the analytical calculation, in particular the treatment of the various types of singularities and the NRQCD operator renormalization, in some detail. We present theoretical predictions for the future e(+)e(-) linear collider TESLA, taking into account both brems- and beamstrahlung.
引用
收藏
页码：014016 / 1
页数：14
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