EVIDENCE FOR VIRTUAL DELTA++ KNOCK-OUT FROM BE-9 BY 1-GEV PROTONS

被引：13
作者：
AMELIN, AI
BEHR, MN
CHERNYSHEV, BA
GORNOV, MG
GUROV, YB
LAPUSHKIN, SV
MOROKHOV, PV
PECHKUROV, VA
SHAFIGULLIN, RR
SHURENKOVA, TD
KOPTEV, VP
RYSKIN, MG
ERAMZHIAN, RA
OGANESIAN, KO
机构：
[1] ST PETERSBURG NUCL PHYS INST,GATCHINA 188350,RUSSIA
[2] INST NUCL RES,MOSCOW 117312,RUSSIA
[3] JOINT INST NUCL RES,DUBNA 141980,RUSSIA
来源：
PHYSICS LETTERS B | 1994年 / 337卷 / 3-4期
关键词：
D O I：
10.1016/0370-2693(94)90973-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Inclusive differential cross sections of He-4,6,8, Li-6,7,8 formation in pBe-9 interactions at T(p) = 1 GeV have been measured. Enhancement of the He-8 yield is observed in the spectator momentum range (P < 300 MeV/c), which is evidence for the process of virtual DELTA++-isobar knock-out from Be-9. The ratio of the spectroscopic factors of (DELTA++ He-8) and (p Li-8) configurations in Be-9 is estimated to be (6 +/- 3) x 10(-4).
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页码：261 / 265
页数：5
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