Next-to-leading order corrections in exclusive meson production
Next-to-leading order corrections in exclusive meson production
复制标题
独家介子生产中次领先的阶次修正
DOI:
10.1140/epjc/s10052-007-0423-3
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
W. Kugler
中科院分区:
文献类型:
--
作者:
M. Diehl;W. Kugler
We analyze in detail the size of next-to-leading order corrections to hard exclusive meson production within the collinear factorization approach. Corrections to the cross section are found to be huge at small xB and substantial in typical fixed-target kinematics. With the models we take for nucleon helicity-flip distributions, the transverse target polarization asymmetry in vector meson production is strongly affected by radiative corrections, except at large xB. Its overall size is very small for ρ production but can be large in the ω channel.
DOI:
10.1016/j.nuclphysb.2003.09.026
发表时间:
2003-08
期刊:
Nuclear Physics
影响因子:
--
作者:
M. Beneke;M. Neubert
通讯作者:
M. Beneke;M. Neubert