Hadron mass corrections in semi-inclusive deep-inelastic scattering

Hadron mass corrections in semi-inclusive deep-inelastic scattering
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半包容深非弹性散射中的强子质量修正

DOI:
10.1088/1126-6708/2009/11/084
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发表时间:
2009
影响因子:
5.4
通讯作者:
W. Melnitchouk
W. Melnitchouk
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
J. V. Guerrero;J. Ethier;A. Accardi;S. Casper;W. Melnitchouk

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在共线因式分解的框架下,导出了半包含轻子-核子散射的自旋相关截面,其中包括了有限动量转移平方Q2处目标和产生的强子的质量的影响。在前序,截面分解成部分子分布和碎裂函数的乘积,根据新的、依赖于质量的标度变量进行评估。强子质量修正的大小是在运动学上估计的,这与未来的半包含式深度非弹性散射实验有关。
A bstractThe spin-dependent cross sections for semi-inclusive lepton-nucleon scattering are derived in the framework of collinear factorization, including the effects of masses of the target and produced hadron at finite momentum transfer squared Q2. At leading order the cross sections factorize into products of parton distribution and fragmentation functions evaluated in terms of new, mass-dependent scaling variables. The size of the hadron mass corrections is estimated at kinematics relevant for future semi-inclusive deepinelastic scattering experiments.
DOI: 10.1103/physrevd.86.054009
发表时间: 2012-09-07
期刊: PHYSICAL REVIEW D
影响因子: 5
作者:
Alekhin, S.;Bluemlein, J.;Moch, S.
通讯作者: Moch, S.