Gluonic Pole Cross Sections and Single Spin Asymmetries in Hadron-Hadron Scattering

Abstract

The gauge-links connecting the parton field operators in the hadronic matrix elements appearing in the transverse momentum dependent distribution functions give rise to T-odd effects. Due to the process-dependence of the gauge-links the T-odd distribution functions appear with different pre-factors. A consequence is that in the description of single spin asymmetries the parton distribution and fragmentation functions are convoluted with gluonic pole cross sections rather than the basic partonic cross sections. In this paper we calculate the gluonic pole cross sections encountered in single spin asymmetries in hadron-hadron scattering. The case of back-to-back pion production in polarized proton-proton scattering is worked out explicitly. It is shown how T-odd gluon distribution functions originating from gluonic pole matrix elements appear in twofold.

v2: includes explicit definitions of polarized cross sections + minor corrections; to appear in JHEP

References in corpus (11)

• Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target
• Universality of soft and collinear factors in hard-scattering factorization
• Single transverse-spin asymmetry in high transverse momentum pion production in pp collisions
• The Construction of Gauge-Links in Arbitrary Hard Processes
• Gauge Link Structure in Quark-Quark Correlators in hard processes
• Single spin asymmetries in hadron-hadron collisions
• Longitudinal Polarized Parton Densities Updated
• Determination of polarized parton distribution functions with recent data on polarization asymmetries
• Dihadron interference fragmentation functions in proton-proton collisions
• Constraints on the gluon Sivers distribution via transverse single spin asymmetries at midrapidity in p(transv. polarized) p -> pi^0 X processes at BNL RHIC
• Transversity in the chiral quark--soliton model and single spin asymmetries

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