PARTIAL-WAVE ANALYSIS OF J/PSI-]GAMMA-ETA-PI+PI-

被引：41

作者：

BOLTON, T

BROWN, JS

BUNNELL, KO

BURCHELL, M

BURNETT, TH

CASSELL, RE

COFFMAN, D

COWARD, DH

COYLE, P

DEJONGH, F

DRINKARD, J

DUBOIS, GP

EIGEN, G

EISENSTEIN, BI

FREESE, T

GATTO, C

GLADDING, G

HEUSCH, CA

HITLIN, DG

IZEN, JM

KIM, PC

LABS, J

LI, A

LOCKMAN, WS

MALLIK, U

MATTHEWS, CG

MIR, R

MOCKETT, PM

ODIAN, A

PARRISH, L

PITMAN, D

RICHMAN, JD

SADROZINSKI, HFW

SCARLATELLA, M

SCHALK, TL

SCHINDLER, RH

SEIDEN, A

STOCKDALE, IE

TOKI, W

TRIPSAS, B

WANG, MZ

WEINSTEIN, AJ

WESELER, S

WILLUTZKI, HJ

WISNIEWSKI, WJ

XU, R

ZHU, Y

机构：

[1] UNIV CALIF SANTA CRUZ,SANTA CRUZ INST PARTICLE PHYS,SANTA CRUZ,CA 95064

[2] UNIV ILLINOIS,DEPT PHYS,URBANA,IL 61801

[3] UNIV IOWA,DEPT PHYS,IOWA CITY,IA 52242

[4] STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305

[5] UNIV WASHINGTON,DEPT PHYS,SEATTLE,WA 98195

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 09期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1103/PhysRevLett.69.1328

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a study of the decay J/psi--> gamma-eta-pi+pi- using the Mark III detector at the SLAC e+e- storage ring SPEAR. A partial-wave amplitude analysis is performed on the eta-pi+pi- system in the mass region from 1.2 to 1.5 GeV. We observe two eta+eta- resonances, each decaying via a0(980)pi. We identify one as the axial-vector meson f1(1285) and the other as a pseudoscalar resonance at 1.40 GeV.

引用

页码：1328 / 1331

页数：4

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