Collins azimuthal asymmetries of hadron production inside jets
arXiv:1707.00913 · doi:10.1016/j.physletb.2017.10.031
Abstract
We investigate the Collins azimuthal asymmetry of hadrons produced inside jets in transversely polarized proton-proton collisions. Recently, the quark transversity distributions and the Collins fragmentation functions have been extracted within global analyses from data of the processes semi-inclusive deep inelastic scattering and electron-positron annihilation. We calculate the Collins azimuthal asymmetry for charged pions inside jets using these extractions for RHIC kinematics at center-of-mass energies of 200 and 500 GeV. We compare our results with recent data from the STAR Collaboration at RHIC and find good agreement, which confirms the universality of the Collins fragmentation functions. In addition, we further explore the impact of transverse momentum dependent evolution effects.
12 pages, 5 figures, expanded version published in PLB
References in corpus (7)
- k_T factorization is violated in production of high-transverse-momentum particles in hadron-hadron collisions
- Measurement of Azimuthal Asymmetries in Inclusive Production of Hadron Pairs in e+e- Annihilation at \sqrt{s} = 10.58 GeV
- Partonic Pole Matrix Elements for Fragmentation
- Azimuthal Asymmetric Distribution of Hadrons Inside a Jet at Hadron Collider
- Hadronic Dijet Imbalance and Transverse-Momentum Dependent Parton Distributions
- Spectral analysis of gluonic pole matrix elements for fragmentation
- Collins Asymmetry at Hadron Colliders
Cited by in corpus (4)
- Extraction of unpolarized quark transverse momentum dependent parton distributions from Drell-Yan/Z-boson production
- Polarized jet fragmentation functions
- Testing the universality of the Collins function in pion-jet production at RHIC
- Large Transverse Momentum in Semi-Inclusive Deeply Inelastic Scattering Beyond Lowest Order