Neutral pion photoproduction off 3H and 3He in chiral perturbation theory

Details Neutral pion photoproduction off 3H and 3He in chiral perturbation theory Neutral pion photoproduction off 3H and 3He in chiral perturbation theory

2011-03-17

arxiv.org/abs/1103.3400v2

Phys.Lett.B700:365-368,2011

Physics

Nuclear Physics

Nuclear Theory

6 pages, 3 figures, version accepted for publication in Phys. Lett. B, improved discussion of higher-order corrections, result

Scientific paper

10.1016/j.physletb.2011.05.036

We calculate electromagnetic neutral pion production off three-nucleon bound states (3H, 3He) at threshold to leading one-loop order in the framework of chiral nuclear effective field theory. In addition, we analyze the dependence of the nuclear S-wave amplitude E_{0+} on the elementary neutron amplitude E_{0+}^{pi0 n} which in the case of 3He provides a stringent test of the prediction based on chiral perturbation theory. Uncertainties from higher order corrections are estimated.

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