20-27 July 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Parton distribution functions from DIS data

Not scheduled
Dauphine (Alpes Congrès - Alpexpo)


Alpes Congrès - Alpexpo

Poster QCD


Prof. Ali N. khorramian (Semnan university and IPM)


In this article we present the results of our QCD analysis for proton structure function $F_{2}^{p} (x,Q^2)$ in order to determine the parton distributions at next-to-leading order (NLO) of QCD. We also study the heavy quark contributions to the proton structure function $F_2^i(x,Q^2)$, with $i$ = $c$, $b$ within the framework of the so called `fixed flavor number scheme' (FFNS) parton model predictions at high energy colliders which is fully predictive in the heavy quark sector where the heavy quark flavors are produced entirely perturbatively from the initial light ($u$, $d$, $s$) quarks and gluons - in full agreement with present experiments. The results in the fixed-flavor scheme are compared with those of the general-mass variable-flavor-number scheme, fixed-flavor scheme and other prescriptions used in global fits of PDFs. We use a wide range of the inclusive neutral-current deep-inelastic-scattering (DIS) world data in the present QCD analysis. Our results are in very good agreement with the recent measurements of $F_{2}^{p} (x,Q^2)$.}

Primary author

Prof. Ali N. khorramian (Semnan university and IPM)


Mr Hamzeh Khanpour (Semnan university) Dr shahin Atashbar (IPM)

Presentation Materials