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

被引：16

作者：

Kniehl, B. A. ^{[1
]}

Kramer, G. ^{[1
]}

Schienbein, I. ^{[2
]}

Spiesberger, H. ^{[3
]}

机构：

[1] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany

[2] Univ Grenoble 1, CNRS, IN2P3, Lab Phys Subatom & Cosmol,INPG, F-38026 Grenoble, France

[3] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2009年 / 62卷 / 02期

关键词：

D-ASTERISK-PRODUCTION; CROSS-SECTIONS; DISTRIBUTIONS; COLLISIONS;

D O I：

10.1140/epjc/s10052-009-1027-x

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We discuss the inclusive production of D*(+/-)-mesons in gamma p collisions at DESY HERA, based on a calculation at next-to-leading order in the general-mass variable-flavor-number scheme. In this approach, (MS) over bar subtraction is applied in such a way that large logarithmic corrections are resummed in universal parton distribution and fragmentation functions and finite-mass terms are taken into account. We present detailed numerical results for a comparison with data obtained at HERA and discuss various sources of theoretical uncertainties.

引用

页码：365 / 374

页数：10

共 37 条

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