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The Solar hep Process in Effective Field Theory

T. -S. Park·L. E. Marcucci·R. Schiavilla·M. Viviani·A. Kievsky·S. Rosati·K. Kubodera·D. -P. Min·M. Rho
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Abstract

Using effective field theory, we calculate the S-factor for the hep process in a totally parameter-free formulation. The transition operators are organized according to chiral counting, and their matrix elements are evaluated using the realistic nuclear wave functions obtained in the correlated-hyperspherical-harmonics method. Terms of up to next-to-next-to-next-to-leading order in heavy-baryon chiral perturbation theory are considered. Fixing the only parameter in the theory by fitting the tritium β-decay rate, we predict the hep S-factor with accuracy better than \sim 20 %.

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T. -S. Park, L. E. Marcucci, R. Schiavilla, M. Viviani, A. Kievsky, S. Rosati, K. Kubodera, D. -P. Min, M. Rho. 2001-08-03. The Solar hep Process in Effective Field Theory. https://arxiv.org/abs/nucl-th/0107012

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