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Evolution of parton fragmentation functions at finitetemperature

Journal Article · · Physical Review D
OSTI ID:891802
The first order correction to the parton fragmentation functions in a thermal medium is derived in the leading logarithmic approximation in the framework of thermal field theory. The medium-modified evolution equations of the parton fragmentation functions are also derived. It is shown that all infrared divergences, both linear and logarithmic, in the real processes are canceled among themselves and by corresponding virtual corrections. The evolution of the quark number and the energy loss (or gain) induced by the thermal medium are investigated.
Research Organization:
COLLABORATION - Calif. Inst. QuantitativeBiomed. Res.
DOE Contract Number:
AC02-05CH11231
OSTI ID:
891802
Report Number(s):
LBNL--51870; BnR: KB0301020
Journal Information:
Physical Review D, Journal Name: Physical Review D Vol. 67
Country of Publication:
United States
Language:
English

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