An Isobar Model of e+ e- --> pi+ pi- pi0 pi0

1995/01/30 by John F. McGowan, McGowan, John F.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9501399

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arxiv created 1995/01/30 · arxiv updated 2009/11/30

Abstract

In this paper, several calculations of the matrix elements for processes that may contribute to e+ e- --> pi+ pi- pi0 pi0 using the isobar model and the Lorentz invariant amplitude method are presented. The formulas may be used to determine the electromagnetic form factors of the rho meson if e+ e- --> rho+ rho- contributes to e+ e- --> pi+ pi- pi0 pi0 The electromagnetic form factors of the rho meson are predicted by QCD calculations. The formulas in this paper may be used to study the a₁ meson if e⁺ e^- --> a₁ πcontributes to e+ e- --> pi+ pi- pi0 pi0.

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