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.
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页码:365 / 374
页数:10
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