Target Mass Corrections for the Virtual Photon Structure Functions to the Next-to-next-to-leading Order in QCD
| dc.creator | Kitadono, Yoshio | |
| dc.creator | Sasaki, Ken | |
| dc.creator | Ueda, Takahiro | |
| dc.creator | Uematsu, Tsuneo | |
| dc.date | 2008-01-07 | |
| dc.date.accessioned | 2026-07-07T11:14:00Z | |
| dc.date.available | 2026-07-07T11:14:00Z | |
| dc.description | We investigate target mass effects in the unpolarized virtual photon structure functions $F_2^γ(x,Q^2,P^2)$ and $F_L^γ(x,Q^2,P^2)$ in perturbative QCD for the kinematical region $Λ^2 \ll P^2 \ll Q^2$, where $-Q^2(-P^2)$ is the mass squared of the probe (target) photon and $Λ$ is the QCD scale parameter. We obtain the Nachtmann moments for the structure functions and then, by inverting the moments, we get the expressions in closed form for $F_2^γ(x,Q^2,P^2)$ up to the next-to-next-to-leading order and for $F_L^γ(x,Q^2,P^2)$ up to the next-to-leading order, both of which include the target mass corrections. Numerical analysis exhibits that target mass effects appear at large $x$ and become sizable near $x_{\rm max}(=1/(1+\frac{P^2}{Q^2}))$, the maximal value of $x$, as the ratio $P^2/Q^2$ increases. | |
| dc.description | 24 pages, LaTeX, 7 eps figures, REVTeX 4 | |
| dc.identifier | https://arxiv.org/abs/0801.0937 | |
| dc.identifier | http://arxiv.org/abs/0801.0937 | |
| dc.identifier | Phys.Rev.D77:054019,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.77.054019 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/191918 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Target Mass Corrections for the Virtual Photon Structure Functions to the Next-to-next-to-leading Order in QCD | |
| dc.type | text |