OBSERVATION OF A PSEUDOSCALAR STATE IN J-PSI-]GAMMA-PHI-PHI NEAR PHI-PHI THRESHOLD

被引：45
|
作者：
BAI, Z
BLAYLOCK, GT
BOLTON, T
BROWDER, TE
BROWN, JS
BUNNELL, KO
BURNETT, TH
CASSELL, RE
COFFMAN, D
COOK, V
DEJONGH, F
DORFAN, DE
DRINKARD, J
DUBOIS, GP
EIGEN, G
EINSWEILER, KF
EISENSTEIN, BI
FREESE, T
GATTO, C
GLADDING, G
HAUSER, J
HEUSCH, CA
HITLIN, DG
IZEN, JM
KIM, PC
LABS, J
LI, A
LOCKMAN, WS
MALLIK, U
MATTHEWS, CG
MINCER, AI
MIR, R
MOCKETT, PM
MOZLEY, RF
NEMATI, B
ODIAN, A
PARRISH, L
PARTRIDGE, R
PITMAN, D
PLAETZER, SA
RICHMAN, JD
SADROZINSKI, HFW
SCARLATELLA, M
SCHALK, TL
SCHINDLER, RH
SEIDEN, A
SIMOPOULOS, C
STOCKDALE, IE
TOKI, W
TRIPSAS, B
机构：
[1] UNIV CALIF SANTA CRUZ,SANTA CRUZ,CA 95064
[2] UNIV ILLINOIS,URBANA,IL 61801
[3] UNIV IOWA,IOWA CITY,IA 52242
[4] STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309
[5] UNIV WASHINGTON,SEATTLE,WA 98195
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 11期
关键词：
D O I：
10.1103/PhysRevLett.65.1309
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present a study of the radiative decay in the K+K-K+K- and K+K-KS0KL0 final states. A pseudoscalar state is observed in the invariant-mass spectrum at 2.22 GeV/c2 with a width of 150 MeV/c2. The product branching ratios are BB10-4 for the K+K-K+K- mode and B0.6)×10-4 for the K+K-KS0KL0 mode. No evidence for 2++ states below 2.4 GeV/c2 is found in this radiative decay mode. © 1990 The American Physical Society.
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收藏
页码：1309 / 1312
页数：4
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