Threshold Two-Pion Photo- and Electroproduction: More neutrals than expected

Details Threshold Two-Pion Photo- and Electroproduction: More neutrals than expected Threshold Two-Pion Photo- and Electroproduction: More neutrals than expected

1994-03-17

arxiv.org/abs/nucl-th/9403013v1

Nucl.Phys. A580 (1994) 475-499

Physics

Nuclear Physics

Nuclear Theory

23pp, plain TeX, 11 figures available upon request, CRN 94/14

Scientific paper

10.1016/0375-9474(94)90910-5

We present an exploratory study of two pion photo-- and electroproduction off the nucleon in the threshold region. To calculate the pertinent amplitudes, we make use of heavy baryon chiral perturbation theory. We show that due to finite chiral loops the production cross section for final states with two neutral pions is considerably enhanced. The experimental implications are briefly discussed.

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