TY - JOUR
T1 - Connections between TMD and Collinear Twist-3 Functions within the Context of Single-Spin Asymmetries
AU - Daniel, Pitonyak
AU - Leonard, Gamberg
AU - Andreas, Metz
AU - Alexei, Prokudin
N1 - Funding Information:
This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Award No. DE-FG02-07ER41460 (L.G.), No. DE-AC05-06OR23177 (A.P.), by the National Science Foundation under Contract No. PHY-1516088 (A.M.), No. PHY-1623454 (A.P.), and within the framework of the TMD Topical Collaboration.
Publisher Copyright:
© Copyright owned by the author(s)
PY - 2017
Y1 - 2017
N2 - We review the theoretical framework underlying the description of transverse single-spin asymmetries (SSAs) for both collinear and transverse-momentum-dependent (TMD) processes. For the latter, we discuss modifications to the widely used CSS formalism that are needed to address certain issues that have arisen in TMD analyses. After these improvements, one can derive rigorous relations between collinear and TMD functions. Moreover, we show how both collinear and TMD SSA observables are driven by multi-parton correlations, which allows for a future global extraction to be performed including data from both types of measurements.
AB - We review the theoretical framework underlying the description of transverse single-spin asymmetries (SSAs) for both collinear and transverse-momentum-dependent (TMD) processes. For the latter, we discuss modifications to the widely used CSS formalism that are needed to address certain issues that have arisen in TMD analyses. After these improvements, one can derive rigorous relations between collinear and TMD functions. Moreover, we show how both collinear and TMD SSA observables are driven by multi-parton correlations, which allows for a future global extraction to be performed including data from both types of measurements.
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M3 - Conference article
AN - SCOPUS:85050374063
SN - 1824-8039
VL - 2017-May
JO - Proceedings of Science
JF - Proceedings of Science
T2 - 2017 QCD Evolution, QCDEV 2017
Y2 - 22 May 2017 through 26 May 2017
ER -