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High Energy Physics - Phenomenology

arXiv:hep-ph/9806478 (hep-ph)
[Submitted on 25 Jun 1998]

Title:Self-dual homogeneous gluon field and electromagnetic structure of pion

Authors:Ja. V. Burdanov (1), G. V. Efimov (2), S. N. Nedelko (2) ((1) Laboratory of Nuclear Problems JINR, (2) Bogoliubov Laboratory of Theoretical Physics JINR)
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Abstract: The transition form factor, decay width and charge form factor of pion are calculated within the model of induced nonlocal quark currents based on the assumption that the nonperturbative QCD vacuum can be characterized by a homogeneous (anti-)self-dual gluon field. It is shown that the interaction of the quark spin with the vacuum gluon field, being responsible in the model for the chiral symmetry breaking and the spectrum of light mesons, can also play the decisive role in forming the transition form factor and two-photon decay width. Asymptotic behavior of quark loops in the presence of the background gluon field for large momentum transfer is discussed.
Comments: 42 pages, Latex, two figures, uses revtex
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:hep-ph/9806478
  (or arXiv:hep-ph/9806478v1 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/9806478

Submission history

From: Nedelko Sergey [view email]
[v1] Thu, 25 Jun 1998 10:05:40 UTC (56 KB)
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