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Pion form factor in the Kroll-Lee-Zumino model | | Cesareo A. Dominguez
; Juan I. Jottar
; Marcelo Loewe
; Bernard Willers
; | | Date: |
14 May 2007 | | Subject: | High Energy Physics - Phenomenology (hep-ph) | | Abstract: | The renormalizable Abelian quantum field theory model of Kroll, Lee, and
Zumino is used to compute the one-loop vertex corrections to the tree-level,
Vector Meson Dominance (VMD) pion form factor. These corrections, together with
the known one-loop vacuum polarization contribution, lead to a substantial
improvement over VMD. The resulting pion form factor in the space-like region
is in excellent agreement with data in the whole range of accessible momentum
transfers. The time-like form factor, known to reproduce the Gounaris-Sakurai
formula, is unaffected by the vertex correction at order $cal{O}$$(g_
pp^2)$. | | Source: | arXiv, arxiv.0705.1902 | | Services: | Forum | Review | PDF | Favorites | |
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