Parity-Violating Asymmetry in gamma d -%26gt; n p with a Pionless Effective Theory

作者:Shin J W*; Ando S I; Hyun C H; Hong S W
来源:Few-Body Systems, 2013, 54(1-4): 359-362.
DOI:10.1007/s00601-012-0392-4

摘要

Nuclear parity violation is studied with polarized neutrons in the photodisintegration of the deuteron at low energies. A pionless effective field theory with di-baryon fields is used for the investigation. Hadronic weak interactions are treated by parity-violating di-baryon-nucleon-nucleon vertices, which have undetermined coupling constants. A parity-violating asymmetry in the process is calculated for the incident photon energy up to 30 MeV. If experimental data for the parity-violating asymmetry become available in the future, we will be able to determine the unknown coupling constants in the parity-violating vertices.

  • 出版日期2013-3