Collins Asymmetry at Hadron Colliders

Abstract

We study the Collins effect in the azimuthal asymmetric distribution of hadrons inside a high energy jet in the single transverse polarized proton proton scattering. From the detailed analysis of one-gluon and two-gluon exchange diagrams contributions, the Collins function is found the same as that in the semi-inclusive deep inelastic scattering and e^+e^- annihilations. The eikonal propagators in these diagrams do not contribute to the phase needed for the Collins-type single spin asymmetry, and the universality is derived as a result of the Ward identity. We argue that this conclusion depends on the momentum flow of the exchanged gluon and the kinematic constraints in the fragmentation process, and is generic and model-independent.

23 pages, 6 figures

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Cited by in corpus (26)

• Parton Fragmentation Functions
• Collins Fragmentation and the Single Transverse Spin Asymmetry
• Fragmentation contribution to the transverse single-spin asymmetry in proton-proton collisions
• Angular dependences in inclusive two-hadron production at BELLE
• Hadron Fragmentation Inside Jets in Hadronic Collisions
• Twist-three Fragmentation Function Contribution to the Single Spin Asymmetry in pp Collisions
• Partonic Pole Matrix Elements for Fragmentation
• Collins azimuthal asymmetries of hadron production inside jets
• Spectral analysis of gluonic pole matrix elements for fragmentation
• Polarized hadron pair production from electron-positron annihilation
• On the role of Collins effect in the single spin asymmetry A_N in p(transv. polarized) p --> h X processes
• Fragmentation in Jets: Cone and Threshold Effects
• Azimuthal asymmetries for hadron distributions inside a jet in hadronic collisions
• Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at $\sqrt{s}=500$ GeV
• QCD evolution of naive-time-reversal-odd fragmentation functions
• TMDs and SSAs in hadronic interactions
• Transverse Spin Structure of the Nucleon
• Single spin asymmetries in l p --> h X processes: a test of factorization
• Momentum sum rules for fragmentation functions
• Single-spin asymmetries in the leptoproduction of transversely polarized $\Lambda$ hyperons
• Azimuthal transverse single-spin asymmetries of inclusive jets and identified hadrons within jets from polarized $pp$ collisions at $\sqrt{s}$ = 200 GeV
• Partonic State and Single Transverse Spin Asymmetries in Semi Inclusive DIS
• Dihadron Azimuthal Correlation from Collins Effect in Unpolarized Hadron Collisions
• Twist Three Distribution f_\perp(x,k^\perp) in Light-front Hamiltonian Approach
• Predicting the $\sin {\varphi }_S$ Single-Spin-Asymmetry of $\Lambda$ Production off transversely polarized nucleon in SIDIS
• Test of the Universality of Naive-time-reversal-odd Fragmentation Functions