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Title: Weak capture of protons by protons

Journal Article · · Phys.Rev. C58 (1998) 1263

The cross section for the proton weak capture reaction {sup 1}H(p,e{sup +}{nu}{sub e}){sup 2}H is calculated with wave functions obtained from a number of modern, realistic high-precision interactions. To minimize the uncertainty in the axial two-body current operator, its matrix element has been adjusted to reproduce the measured Gamow-Teller matrix element of tritium {beta} decay in model calculations using trinucleon wave functions from these interactions. A thorough analysis of the ambiguities that this procedure introduces in evaluating the two-body current contribution to the pp capture is given. Its inherent model dependence is in fact found to be very weak. The overlap integral {Lambda}{sup 2}(E=0) for the pp capture is predicted to be in the range 7.05--7.06, including the axial two-body current contribution, for all interactions considered.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Energy Research (ER) (US)
DOE Contract Number:
AC05-84ER40150
OSTI ID:
755923
Report Number(s):
DOE/ER/40150-1498; JLAB-THY-98-14; nucl-th/9808010; TRN: US0002601
Journal Information:
Phys.Rev. C58 (1998) 1263, Other Information: Submitted to Phys.Rev. C58 (1998) 1263; PBD: 1 Aug 1998
Country of Publication:
United States
Language:
English

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