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QCD evolution of naive-time-reversal-odd fragmentation functions

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology
We study QCD evolution equations of the first transverse-momentum moment of the naive-time-reversal-odd fragmentation functions - the Collins function and the polarizing fragmentation function. We find for the Collins function case that the evolution kernel has a diagonal piece the same as that for the transversity fragmentation function, while for the polarizing fragmentation function case this piece is the same as that for the unpolarized fragmentation function. Our results might have important implications in the current global analysis of spin asymmetries.
Research Organization:
Brookhaven National Laboratory (BNL) Riken BNL Research Center
Sponsoring Organization:
DOE - OFFICE OF SCIENCE
DOE Contract Number:
AC02-98CH10886
OSTI ID:
1019486
Report Number(s):
BNL--95017-2011-JA
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Issue: 3 Vol. 83; ISSN PRVDAQ; ISSN 1550-7998
Country of Publication:
United States
Language:
English

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