On the PQCD prediction for the pion form factor

1999/08/30 by B. Melic, Melic, B., B. Nizic +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9908510

8 pages, 2 figures included; talk presented by K. Passek at the Exclusive & Semiexclusive Processes at High Momentum Transfer Joint INT/ Jefferson Lab Workshop, Newport News, Virginia, 20-22 May 1999

arxiv created 1999/08/30 · arxiv updated 2009/11/30

Abstract

We comment on the results of a complete leading-twist next-to-leading order QCD analysis of the spacelike pion electromagnetic form factor at large-momentum transfer Q. For the asymptotic distribution amplitude, we have examined the sensitivity of the predictions to the choice of the renormalization scale. The results show that, regarding the size of the radiative corrections, reliable perturbative predictions for the pion electromagnetic form factor can already be made at a momentum transfer Q of the order of 5 to 10 GeV.

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