STUDY OF PI-N-]ETA-PI-N AND PI-N-]ETA'PI-N REACTIONS AT 37 GEV/C

被引：170

作者：

BELADIDZE, GM ^{[1
]}

BERDNIKOV, EB ^{[1
]}

BITYUKOV, SI ^{[1
]}

BORISOV, GV ^{[1
]}

DZHELYADIN, RI ^{[1
]}

EKIMOV, AV ^{[1
]}

GOUZ, YP ^{[1
]}

IVANYUSHENKOV, YM ^{[1
]}

KACHAEV, IA ^{[1
]}

KARYUKHIN, AN ^{[1
]}

KHOKHLOV, YA ^{[1
]}

KLYUCHNIKOV, GA ^{[1
]}

KONSTANTINOV, VF ^{[1
]}

KOSTRIKOV, ME ^{[1
]}

KOSTYUKHIN, VV ^{[1
]}

KRIUSHIN, AA ^{[1
]}

LOMTADZE, TA ^{[1
]}

MATVEYEV, VD ^{[1
]}

OSTANKOV, AP ^{[1
]}

RYABCHIKOV, DI ^{[1
]}

SEKHNIAIDZE, GG ^{[1
]}

STARCHENKO, EA ^{[1
]}

TSKHADAZE, EG ^{[1
]}

VISHNEVSKY, NK ^{[1
]}

VLASOV, EV ^{[1
]}

ZAITSEV, AM ^{[1
]}

机构：

[1] TBILISI PHYS, TBILISI 380077, GEORGIA

来源：

PHYSICS LETTERS B | 1993年 / 313卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(93)91224-B

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A partial-wave analysis of the etapi- and eta'pi- systems produced in the reactions pi-N-->eta(eta')pi-N on a beryllium target at a beam momentum of p(pi-) = 37 GeV/c is performed. It is shown that (1) all the waves with negative exchange naturality are negligibly small for both systems; (2) the matrix element squared of the P+ wave with J(PC) = 1-+ for the eta'pi- system significantly exceeds that for the etapi- system, which could testify to the dominance of systems with a valence gluon (qqgBAR) in the J(PC)= l-+ wave formation; (3) the ratio R = Br(a2- --> eta'pi-)/BR (a2- --> etapi-) = (4.7 +/- 1.0(stat.) +/- 0.4 (syst.)) x 10(-2) has been obtained.

引用

页码：276 / 282

页数：7

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