2-NUCLEON KNOCK-OUT INVESTIGATED WITH THE SEMI-EXCLUSIVE C-12(E,E'P)-REACTION

被引：21
|
作者：
KESTER, LJHM
HESSELINK, WHA
KALANTARNAYESTANAKI, N
MITCHELL, JH
PELLEGRINO, A
JANS, E
KONIJN, J
STEIJGER, JJM
VISSCHERS, JL
ZONDERVAN, A
CALARCO, JR
DEANGELIS, D
HERSMAN, FW
KIM, W
BAUER, TS
KELDER, MW
PAPANDREOU, Z
RYCKEBUSCH, J
ATTI, CCD
SIMULA, S
机构：
[1] NATL INST NUCL & HIGH ENERGY PHYS,1009 DB AMSTERDAM,NETHERLANDS
[2] UNIV NEW HAMPSHIRE,DEPT PHYS,DURHAM,NH 03824
[3] UNIV UTRECHT,PHYS LAB,3508 TA UTRECHT,NETHERLANDS
[4] INST THEORET PHYS,B-9000 GHENT,BELGIUM
[5] UNIV PERUGIA,DEPT PHYS,I-06100 PERUGIA,ITALY
[6] IST NAZL FIS NUCL,I-00161 ROME,ITALY
来源：
PHYSICS LETTERS B | 1995年 / 344卷 / 1-4期
关键词：
D O I：
10.1016/0370-2693(94)01583-X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The C-12(e, e' p) reaction has been studied in the dip region, at an energy transfer o = 212 MeV and a three-momentum transfer /q/ = 270 MeV/c. The data cover a missing energy range 0-180 MeV and include missing momenta up to 750 MeV/c. The cross sections, measured at various angles between the detected proton and q, show a clear signature for two-nucleon knock-out. At large angles, the measured strength can mainly be attributed to the coupling of the virtual photon to pion exchange currents and intermediate Delta-excitation. The data at small angles cannot be explained by these mechanisms alone. It is suggested that additional strength originates from the emission of a correlated nucleon pair.
引用
收藏
页码：79 / 84
页数：6
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