Asymmetry of the parallel momentum distribution of (p, pN) reaction residues

作者：Ogata Kazuyuki^*; Yoshida Kazuki; Minomo Kosho

来源：Physical Review C, 2015, 92(3): 034616.

DOI：10.1103/PhysRevC.92.034616

The parallel momentum distribution (PMD) of the residual nuclei of the O-14(p, pn)O-13 and O-14(p, 2p)N-13 reactions at 100 and 200 MeV/nucleon in inverse kinematics is investigated with the framework of the distorted-wave impulse approximation. The PMD shows an asymmetric shape characterized by a steep falloff on the high momentum side and a long-ranged tail on the low momentum side. The former is found to be due to the phase volume effect reflecting the energy and momentum conservation, and the latter is to the momentum shift of the outgoing two nucleons inside an attractive potential caused by the residual nucleus. Dependence of these effects on the nucleon separation energy of the projectile and the incident energy is also discussed.

• 出版日期2015-9-25