Probing the Deuteron at Very Large Internal Momenta
Probing the Deuteron at Very Large Internal Momenta
复制标题
探测氘核的巨大内动量
DOI：
10.1103/physrevlett.125.262501
复制
发表时间：
2020
影响因子：
8.6
通讯作者：
Assumin-Gyimah, K.
中科院分区：
文献类型：
--
作者：
Yero, C.;Abrams, D.;Ahmed, Z.;Ahmidouch, A.;Aljawrneh, B.;Alsalmi, S.;Ambrose, R.;Armstrong, W.;Asaturyan, A.;Assumin-Gyimah, K.
我们测量了中子反冲动量范围内的四动量转移截面，达到。我们得到的数据在固定的中子反冲角，45°和75°的3-动量转移。新的数据与以前的数据吻合得很好。在和45°时，末态相互作用、介子交换流和等压线流被抑制，而平面波冲量近似提供了主要的截面贡献。我们比较新的数据，最近的理论计算，我们观察到一个显着的差异反冲动量。
We measurecross sections at 4-momentum transfers ofover a range of neutron recoil momenta, reaching up to. We obtain data at fixed neutron recoil angles, 45°, and 75° with respect to the 3-momentum transfer. The new data agree well with previous data, which reached. Atand 45°, final state interactions, meson exchange currents, and isobar currents are suppressed and the plane wave impulse approximation provides the dominant cross section contribution. We compare the new data to recent theoretical calculations, where we observe a significant discrepancy for recoil momenta.