Parton distributions in the virtual photon target up to NNLO in QCD

Details Parton distributions in the virtual photon target up to NNLO in QCD Parton distributions in the virtual photon target up to NNLO in QCD

2009-02-18

arxiv.org/abs/0902.3086v2

Eur.Phys.J.C62:467-480,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 5 figures, version to appear in Eur. Phys. J. C

Scientific paper

10.1140/epjc/s10052-009-1062-7

Parton distributions in the virtual photon target are investigated in perturbative QCD up to the next-to-next-to-leading order (NNLO). In the case $\Lambda^2 \ll P^2 \ll Q^2$, where $-Q^2$ ($-P^2$) is the mass squared of the probe (target) photon, parton distributions can be predicted completely up to the NNLO, but they are factorisation-scheme-dependent. We analyse parton distributions in two different factorisation schemes, namely $\bar{\rm MS}$ and ${\rm DIS}_{\gamma}$ schemes, and discuss their scheme dependence. We show that the factorisation-scheme dependence is characterised by the large-$x$ behaviours of quark distributions. Gluon distribution is predicted to be very small in absolute value except in the small-$x$ region.

Affiliated with

Also associated with

No associations

Rating

Parton distributions in the virtual photon target up to NNLO in QCD does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Parton distributions in the virtual photon target up to NNLO in QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parton distributions in the virtual photon target up to NNLO in QCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-127996