EXPERIMENT STUDY OF F(0)(975) IN JPSI DECAYS

JZ BAI,GP CHEN,HF CHEN,SM CHEN,SJ CHEN,YQ CHEN,Y CHEN,YB CHEN,ZD CHENG,BS CHENG, HC CUI,XZ CUI,HL DING,WY DING,ZZ DU,XL FAN,J FANG,CS GAO,ML GAO,SQ GAO,WX GAO,JH GU,SD GU,WX GU,YF GU,YN GUO,YY GUO,Y HAN,SW HAN,J HE,M HE,KR HE,GY HU,HB HU,T HU,XQ HU,DQ HUANG,YZ HUANG,CH JIANG,S JIN,Y JIN,ZJ KE,SH KANG,YF LAI,PF LANG,HB LAN,F LI,J LI,Q LI,PQ LI,QM LI,RB LI,W LI,WD LI,WG LI,XN LI,SZ LIN,HM LIU,Q LIU,RG LIU,Y LIU,JH LIU,ZN LIU,JG LU,SQ LUO,AM MA,JM MA,HS MAO,ZP MAO,XC MENG,HL NI,J NIE,LJ PAN,ND QI,YK QUE,G RONG,YY SHAO,BW SHEN,DL SHEN,H SHEN,XY SHEN,HY SHENG,XF SONG,HZ SHI,F SUN,HS SUN,YP TAN,GL TONG,SQ TANG,LZ WANG,M WANG,LS WANG,PL WANG,P WANG,SM WANG,TJ WANG,YY WANG,CL WEI,DM XI,XM XIA,PP XIE,XX XIE,YG XIE,RS XU,DZ XU,ZJ XU,ST XUE,J YAN,WG YAN,CY YANG,CM YANG,W YANG,MH YE,SZ YE,CX YU,ZQ YU,CS YU,CZ YUAN,BY ZHANG,CC ZHANG,DH ZHANG,HL ZHANG, J ZHANG,JW ZHANG,SQ ZHANG,LS ZHANG,XY ZHANG, Y ZHANG,YY ZHANG,B ZHUANG,DX ZHAO,M ZHAO,JW ZHAO,PD ZHAO,WR ZHAO,WH ZHAO,JP ZHENG,LS ZHENG, ZP ZHENG,BQ ZHOU,GP ZHOU,HS ZHOU,L ZHOU,YH ZHOU,XF ZHOU,QM ZHU,YC ZHU,YS ZHU

HIGH ENERGY PHYSICS & NUCLEAR PHYSICS-ENGLISH EDITION（1995）

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摘要

Based on 7.8 x 10(6) J/psi events collected by the BES at BEPC, the hadronic decays J/psi -->phi pi(+)pi(-) and J/psi-->omega pi(+)pi(-) are studied, and the branching ratios of these process and the mass and width of f(0) are obtained, The angular distribution of J/psi --> phi f(0), f(0) --> pi(+)pi(-), is fitted and the helicity amplitude ratios of this process are given for the first time.

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关键词

SCALAR MESON, THRESHOLD EFFECT, SPIN-PARITY, HELICITY

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