THE REACTION HE-3(GAMMA,PP)N AT LOW NEUTRON RECOIL MOMENTUM

被引：16

作者：

AUDIT, G

DHOSE, N

BRICAULT, P

GOUTTE, D

LAGET, JM

MARTINO, J

PHAN, X

CLAYTON, W

ADAMS, G

STOLER, P

PEDRONI, P

BRAGHIERI, A

机构：

[1] RENSSELAER POLYTECH INST,DEPT PHYS,TROY,NY 12180

[2] INFN,SEZ PAVIA,PAVIA,ITALY

来源：

PHYSICS LETTERS B | 1993年 / 312卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(93)90487-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The reaction He-3(gamma,pp)n was measured at the ALS-Saclay at kinematics corresponding to mean neutron recoil momenta near 30 and 75 MeV. Differential cross sections were obtained for photon energies between E(gamma) = 200 and 450 MeV at proton emission angles relative to the p-p center of mass of 49-degrees and 75-degrees, and a proton angular distribution was obtained at E(gamma)=350 MeV. The cross section for photon absorption by a p-p pair is found to be lower by two orders of magnitude compared to that for a p-n pair in He-3. Theoretical multiple scattering calculations reproduce the data rather well, except for significant discrepancies at low E(gamma) and forward proton angles.

引用

页码：57 / 61

页数：5

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