Azimuthal Dependence of the Heavy Quark Initiated Contributions to DIS
| dc.creator | Ananikyan, L. N. | |
| dc.creator | Ivanov, N. Ya. | |
| dc.date | 2006-09-07 | |
| dc.date | 2007-01-15 | |
| dc.date.accessioned | 2026-07-07T11:05:42Z | |
| dc.date.available | 2026-07-07T11:05:42Z | |
| dc.description | We analyze the azimuthal dependence of the heavy-quark-initiated contributions to the lepton-nucleon deep inelastic scattering (DIS). First we derive the relations between the parton level semi-inclusive structure functions and the helicity $γ^{*}Q$ cross sections in the case of arbitrary values of the heavy quark mass. Then the azimuth-dependent ${\cal O}(α_{s})$ lepton-quark DIS is calculated in the helicity basis. Finally, we investigate numerically the properties of the $\cosϕ$ and $\cos2ϕ$ distributions caused by the photon-quark scattering (QS) contribution. It turns out that, contrary to the basic photon-gluon fusion (GF) component, the QS mechanism is practically $\cos2ϕ$-independent. This fact implies that measurements of the azimuthal distributions in charm leptoproduction could directly probe the charm density in the proton. | |
| dc.description | 11 pages, 4 figures, revtex4, published version | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0609074 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0609074 | |
| dc.identifier | Phys.Rev.D75:014010,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.014010 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/189283 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Azimuthal Dependence of the Heavy Quark Initiated Contributions to DIS | |
| dc.type | text |