TRANSVERSE MOMENTUM DEPENDENCE IN THE PERTURBATIVE CALCULATION OF THE PION FORM FACTOR-Reference-Cited by-同舟云学术

TRANSVERSE MOMENTUM DEPENDENCE IN THE PERTURBATIVE CALCULATION OF THE PION FORM FACTOR

Published:1998-02-10 Issue:04 Volume:13 Page:253-262
ISSN:0217-7323
Container-title:Modern Physics Letters A
language:en
Short-container-title:Mod. Phys. Lett. A

Author:

CAO FU-GUANG¹²³,HUANG TAO¹²³

Affiliation:

1. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, P. R. China

2. Institute of High Energy Physics, Academia Sinica, P.O. Box 918, Beijing, 100039, P. R. China

3. Institute of Theoretical Physics, Academia Sinica, P.O. Box 2735, Beijing 100080, P. R. China

Abstract

Transverse momentum dependence in the perturbative calculation of the pion electromagnetic form factor is re-analyzed. It is found that (a) the intrinsic transverse momentum dependence associated with the pion wave function significantly suppresses perturbative prediction for the pion form factor at the energy region of a few GeV, and (b) the transverse momentum dependence in the fermion propagator of the hard scattering leads to a mild reduction of the perturbative calculation. Our formalism is available for both the intermediate energy region (Q~ a few GeV) and the asymptotic energy region (Q→∞).

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217732398000310

Reference20 articles.

1. Exclusive Processes in Quantum Chromodynamics: The Form Factors of Baryons at Large Momentum Transfer

2. Pion Form Factor

3. Factorization and asymptotic behaviour of pion form factor in QCD

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