Azimuthal angle dependence of di-jet production in unpolarized hadron scattering
| dc.creator | Lu, Zhun | |
| dc.creator | Schmidt, Ivan | |
| dc.date | 2008-05-26 | |
| dc.date | 2008-09-08 | |
| dc.date.accessioned | 2026-07-07T11:51:07Z | |
| dc.date.available | 2026-07-07T11:51:07Z | |
| dc.description | We study the azimuthal angular dependence of back-to-back di-jet production in unpolarized hadron scattering $H_A+H_B \to J_1 + J_2 +X$, 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 ($J_q+J_q$) or a quark-antiquark pair ($J_q+J_{\bar{q}}$), there is a $\cos δϕ$ angular dependence of the di-jet, with $δϕ=ϕ_1-ϕ_2$, and $ϕ_1$ and $ϕ_2$ are the azimuthal angles of the two individual jets. In the case of $J_q+J_q$ 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 $\cos δϕ$ asymmetry of di-jet production at RHIC, showing that the color factor enhancement in the angular dependent of $J_q+J_q$ production will reverse the sign of the asymmetry. | |
| dc.description | 10 pages, 7 figures, version accepted by Physical Review D | |
| dc.identifier | https://arxiv.org/abs/0805.4006 | |
| dc.identifier | http://arxiv.org/abs/0805.4006 | |
| dc.identifier | Phys.Rev.D78:034041,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.034041 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/203790 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Azimuthal angle dependence of di-jet production in unpolarized hadron scattering | |
| dc.type | text |