Study of three-nucleon mechanisms in the photodisintegration of He-3

被引：23
|
作者：
Audit, G
Braghieri, A
DHose, N
Isbert, V
Kerhoas, S
Laget, JM
MacCormick, M
Murphy, LY
Panzeri, A
Pedroni, P
Pinelli, T
Tamas, G
Ahrens, J
Annand, JRM
Crawford, R
Grabmayr, P
Hall, SJ
Kellie, JD
机构：
[1] IST NAZL FIS NUCL,I-27100 PAVIA,ITALY
[2] CEA,DAPNIA,SPHN,F-91191 GIF SUR YVETTE,FRANCE
[3] UNIV PAVIA,DIPARTIMENTO FIS NUCL & TEOR,I-27100 PAVIA,ITALY
[4] UNIV MAINZ,INST KERNPHYS,D-55099 MAINZ,GERMANY
[5] UNIV GLASGOW,DEPT PHYS & ASTRON,GLASGOW,LANARK,SCOTLAND
[6] UNIV TUBINGEN,INST PHYS,D-72076 TUBINGEN,GERMANY
来源：
NUCLEAR PHYSICS A | 1997年 / 614卷 / 04期
关键词：
He-3(gamma; pp)n; E(gamma)=200-800 MeV; measured sigma for three-nucleon absorption mechanisms;
D O I：
10.1016/S0375-9474(96)00441-1
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 cross section of the He-3(gamma,pp)n reaction has been measured for the first time over a wide photon energy and proton angular range (200 MeV less than or equal to E(gamma) less than or equal to 800 MeV; 20 degrees less than or equal to theta v(p)(lab) less than or equal to 160 degrees) using the large acceptance detector DAPHNE at the tagged photon facility of the MAMI microtron in Mainz. The wide kinematical coverage of the measurement has allowed a detailed analysis of three-nucleon absorption mechanisms. A model developed by Laget explains the main characteristics of the data in the Delta resonance region.
引用
收藏
页码：461 / 471
页数：11
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