Azimuthal angle dependence of di-jet production in unpolarized hadron scattering
arXiv:0805.4006 · doi:10.1103/PhysRevD.78.034041
Abstract
We study the azimuthal angular dependence of back-to-back di-jet production in unpolarized hadron scattering , arising from the product of two Boer-Mulders functions, which describe the transverse spin distribution of quarks inside an unpolarized hadron. We find that when the di-jet is of two identical quarks () or a quark-antiquark pair (), there is a angular dependence of the di-jet, with , and and are the azimuthal angles of the two individual jets. In the case of production, we find that there is a color factor enhancement in the gluonic cross-section, compared with the result from the standard generalized parton model. We estimate the asymmetry of di-jet production at RHIC, showing that the color factor enhancement in the angular dependent of production will reverse the sign of the asymmetry.
10 pages, 7 figures, version accepted by Physical Review D
References in corpus (10)
- k_T factorization is violated in production of high-transverse-momentum particles in hadron-hadron collisions
- The Construction of Gauge-Links in Arbitrary Hard Processes
- Measurement of Angular Distributions of Drell-Yan Dimuons in p + d Interaction at 800 GeV/c
- Non-universality of transverse momentum dependent parton distribution functions
- Hadronic Dijet Imbalance and Transverse-Momentum Dependent Parton Distributions
- The Sivers single-spin asymmetry in photon-jet production
- Single Transverse-Spin Asymmetry in Hadronic Dijet Production
- Extracting Boer-Mulders functions from Drell-Yan processes
- Single-Transverse Spin Asymmetry in Dijet Correlations at Hadron Colliders
- T-odd effects in photon-jet production at the Tevatron