Double-spin asymmetry $A_{LT}$ in open charm production

Abstract

In the collinear twist-three approach, we calculate for the first time the gluon contribution to double (longitudinal-transverse) spin asymmetry A_{LT} for open charm production in proton-proton collisions measurable at RHIC. Utilizing the Ward-Takahashi identity for the non-pole part of the hard scattering amplitude, we derive a factorized, gauge invariant formula for the asymmetry. The result may be combined with the previous studies of single-spin asymmetry in the same channel and allows for a systematic analysis of three-gluon correlations inside a transversely polarized nucleon.

10 pages, 5 figures, v2. references updated, published in PRD

References in corpus (6)

• Twist-3 Formalism for Single Transverse Spin Asymmetry Reexamined: Semi-Inclusive Deep Inelastic Scattering
• Predictions for double spin asymmetry A_{LT} in Semi Inclusive DIS
• Probing the three-gluon correlation functions by the single spin asymmetry in p^\uparrow p\to DX
• Drell-Yan double-spin asymmetry A_{LT} in polarized p\bar{p} collisions: Wandzura-Wilczek contribution
• Transverse spin asymmetries for W-production in proton-proton collisions
• Accessing tri-gluon correlations in the nucleon via the single spin asymmetry in open charm production

Cited by in corpus (17)

• Operator Constraints for Twist-3 Functions and Lorentz Invariance Properties of Twist-3 Observables
• Contribution of twist-3 fragmentation function to single transverse-spin asymmetry in semi-inclusive deep inelastic scattering
• Longitudinal-transverse double-spin asymmetries in single-inclusive leptoproduction of hadrons
• Left-right spin asymmetry in $\ell N^{\uparrow }\to hX$
• Exact Relations for Twist-3 Gluon Distribution and Fragmentation Functions from Operator Identities
• Single-spin asymmetries at two loops
• Transverse spin observables in hard-scattering hadronic processes within collinear factorization
• Single spin asymmetry in forward $pA$ collisions: Phenomenology at RHIC
• The $g_T(x)$ contribution to single spin asymmetries in SIDIS
• Twist-3 Gluon Fragmentation Contribution to Polarized Hyperon Production in Unpolarized Proton-Proton Collision
• Twist-3 effect from the longitudinally polarized proton for $A_{LT}$ in hadron production from $pp$ collisions
• Transverse Polarization of Hyperons Produced in Semi-Inclusive Deep Inelastic Scattering
• Twist-3 fragmentation effects for $A_{LT}$ in light hadron production from proton-proton collisions
• On the odderon mechanism for transverse single spin asymmetry in the Wandzura-Wilczek approximation
• Color entanglement effect in collinear twist-3 factorization
• Reformulation of the twist-3 gluon Sivers effect toward the application to the heavy quarkonium production
• $A_N$ in inclusive lepton-proton collisions: TMD and twist-3 approaches