Extracting the transverse momentum dependent polarizing fragmentation functions
نویسندگان
چکیده
منابع مشابه
Bounds on transverse momentum dependent distribution and fragmentation functions
We give bounds on the distribution and fragmentation functions that appear at leading order in deep inelastic one-particle inclusive leptoproduction or in Drell-Yan processes. These bounds simply follow from positivity of the defining matrix elements and are an important guidance in estimating the magnitude of the azimuthal and spin asymmetries in these processes.
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Here, P and S denote the parent hadron momentum and spin, and the relevant component of the quark momentum is x = p/P, the light-cone momentum fraction. The components a = a · n∓ stem from vectors n+ and n−, satisfying n2+ = n 2 − = 0 and n+ ·n− = 1, which are fixed by the momentum that introduces the large scaleQ, together with a (soft) hadron momentum. When only the leading part in orders of ...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2020
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.102.096007