EVIDENCE FOR F2(1720) PRODUCTION IN THE REACTION POMERON-POMERON -]PI+PI-PI+PI-

被引:13
作者
BREAKSTONE, A
CAMPANINI, R
CRAWLEY, HB
DALLAVALLE, GM
DENINNO, MM
DOROBA, K
DRIJARD, D
FABBRI, F
FIRESTONE, A
FISCHER, HG
FREHSE, H
GEIST, W
GIACOMELLI, G
GOKIELI, R
GORBICS, M
HANKE, P
HEIDEN, M
HERR, W
ISENHOWER, LD
KLUGE, EE
LAMSA, JW
LEACOCK, RA
LOHSE, T
MANKEL, R
MEYER, WT
MORNACCHI, G
NAKADA, T
PANTER, M
PUTZER, A
RAUSCHNABEL, K
RENSCH, B
RIMONDI, F
SCHMELLING, M
SIROLI, GP
SKEENS, JD
SOSNOWSKI, R
SZCZEKOWSKI, M
ULLALAND, O
WEGENER, D
YEUNG, R
机构
[1] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011
[2] IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011
[3] UNIV BOLOGNA,INST FIS,I-40126 BOLOGNA,ITALY
[4] INFN,BOLOGNA,ITALY
[5] CERN,EUROPEAN ORG NUCL RES,CH-1211 GENEVA 23,SWITZERLAND
[6] UNIV DORTMUND,INST PHYS,W-4600 DORTMUND 50,GERMANY
[7] INST HOCHENERGIEPHYS,HEIDELBERG,GERMANY
[8] UNIV WARSAW,PL-00325 WARSAW,POLAND
[9] INST NUCL RES,PL-00681 WARSAW 91,POLAND
来源
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1993年 / 58卷 / 02期
关键词
D O I
10.1007/BF01560342
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
Data are presented on pomeron-pomeron interactions which produce a central pi+pi-pi+pi- system in proton-proton collisions at square-root s = 62 GeV at the CERN Intersecting Storage Rings. A spin-parity analysis of the pi+pi-pi+pi- system shows evidence for the production of the state f2 (1720) with decay to rho0pi+pi-. Since pomeron-pomeron interactions are expected to favor the production of gluonic bound states, observation of the f2(1720) supports earlier interpretations of it as a glue-ball. In addition, enhancements near threshold give indication of the state f2(1270) decaying to rho0rho0 and the state f0(1400) decaying to rho0pi+pi-.
引用
收藏
页码:251 / 256
页数:6
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