Kepler Centre for Astro and Particle Physics, Physikalisches Institut, Universität Tübingen, D-72076 Tübingen, Germany.
Phys Rev Lett. 2009 Oct 9;103(15):152501. doi: 10.1103/PhysRevLett.103.152501. Epub 2009 Oct 7.
Cross sections for the 3He(e,e' pn)1H reaction were measured for the first time at energy transfers of 220 and 270 MeV for several momentum transfers ranging from 300 to 450 MeV/c. Cross sections are presented as a function of the momentum of the recoil proton and the momentum transfer. Continuum Faddeev calculations using the Argonne V18 and Bonn-B nucleon-nucleon potentials overestimate the measured cross sections by a factor 5 at low recoil proton momentum with the discrepancy becoming smaller at higher recoil proton momentum.
首次在 220 MeV 和 270 MeV 的能量转移下，测量了 3He(e,e' pn)1H 反应的横截面积，对于几个动量转移范围从 300 MeV/c 到 450 MeV/c。横截面积作为反冲质子的动量和动量转移的函数呈现。使用 Argonne V18 和 Bonn-B 核子-核子势的连续 Faddeev 计算在低反冲质子动量下将测量的横截面积高估了 5 倍，随着反冲质子动量的增加，差异变得更小。
