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Title: Correlation functions in hard and (semi-)inclusive processes

Conference ·

Possible relations between two a priori different classes of parton distributions, the Generalized Parton Distributions (GPDs) and the Transverse Momentum Dependent parton distributions (TMDs), are discussed in this note. Although these relations were proven to hold exactly only in simple models they imply an appealingly simple and intuitive explanation for single-spin asymmetries in semi-inclusive deep-inelastic scattering. In this context we perform a first classification of common mother functions of GPDs and TMDs, so-called Generalized Transverse Momentum Dependent parton distributions (GTMDs), investigate their GPD- and TMD-limits, and gain new insight into the nature of these relations.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-060R23177
OSTI ID:
956202
Report Number(s):
JLAB-THY-08-861; DOE/OR/23177-0451; TRN: US1004932
Resource Relation:
Conference: Invited Talk compiled for Transversity-2008
Country of Publication:
United States
Language:
English