DIRECT OBSERVATION OF A 3-BODY MECHANISM IN THE REACTION HE-3(GAMMA,PP) N

被引：23

作者：

AUDIT, G

BRICAULT, P

DHOSE, N

GOUTTE, D

LAGET, JM

MARTINO, J

PHAM, XH

CLAYTON, W

ADAMS, G

GHEDIRA, L

STOLER, P

PEDRONI, P

机构：

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

[2] IST NAZL FIS NUCL, SEZIONE PAVIA, PAVIA, ITALY

来源：

PHYSICAL REVIEW C | 1991年 / 44卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.44.R575

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The reaction He-3(gamma, pp)n was measured in a kinematic region which isolates the three-body absorption mechanism corresponding to the production of a pion on one nucleon, and its subsequent reabsorption on the remaining two-nucleon pair. Differential cross sections were obtained as a function of neutron recoil momentum P(n) at fixed neutron recoil angle theta-n = 45-degrees, and as a function of theta-n for fixed P(n) = 300 MeV/c. The results are quite consistent with expectations of multiple-scattering calculations. Final-state interactions between outgoing nucleons play an important role, and are predicted to be minimized in out-of-plane kinematics.

引用

页码：R575 / R577

页数：3

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