BACKWARD PRODUCTION OF MESONS ASSOCIATED WITH DELTA++(1232) IN PI+ P INTERACTIONS AT 20 GEV/C

被引：3

作者：

PEREPELITSA, VF

AKOPOV, NZ

DORSAZ, L

FERRER, A

GRIGORYAN, AA

KARAPETYAN, VV

MIKHAILICHENKO, VI

NIKITIN, SY

SONDEREGGER, P

ZHOKIN, AS

机构：

[1] YEREVAN PHYS INST,YEREVAN 375036,ARMENIA,USSR

[2] CERN,CH-1211 GENEVA 23,SWITZERLAND

[3] UNIV VALENCIA,CSIC,IFIC,E-46100 BURJASSOT,SPAIN

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1991年 / 50卷 / 03期

关键词：

D O I：

10.1007/BF01551451

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We have analyzed backward meson production in pi + p reactions at 20 GeV/c, which were measured in the CERN OMEGA spectrometer triggered by a fast proton (p(f)), in experiment WA 56. Production via baryon exchange of quasi-two-body final states DELTA+ + (1232) rho-0 (770), DELTA+ + (1232) f2 (1270) and DELTA+ + (1232) rho-3(0) (1690) is clearly identified. The density matrix elements of meson resonances and of DELTA+ + (1232) are analyzed. We have observed also the reactions pi + p --> DELTA+ + (1232) pi-0 and pi + p --> DELTA+ + (1232) omega in the p f-pi + pi-0 and p f-pi + pi + pi - pi-0 final states.

引用

页码：395 / 404

页数：10

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