Evidence for the F Meson

R BRANDELIK,W BRAUNSCHWEIG,HU MARTYN,HG SANDER,D SCHMITZ,W STURM,W WALLRAFF,D CORDS,R FELST,R FRIES,E GADERMANN,H HULTSCHIG,P JOOS,W KOCH, U KOTZ,H KREHBIEL,D KREINICK,HL LYNCH,WA MCNEELY,G MIKENBERG,KC MOFFEIT,D NOTZ,R RUSCH,M SCHLIWA,A SHAPIRA,BH WIIK,G WOLF,G GRINDHAMMER,J LUDWIG,KH MESS,A PETERSEN,G POELZ,J RINGEL,O ROMER,K SAUERBERG,P SCHMUSER,W DEBOER, G BUSCHHORN,W FUES, C VONGAGERN,B GUNDERSON,R KOTTHAUS,H LIERL,H OBERLACK, S ORITO,T SUDA,Y TOTSUKA,S YAMADA

Physics letters B（1977）

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摘要
Inclusive η production by e+e− annihilation for cm energies between 4 and 5.2 GeV was studied. A strong η signal was observed at 4.4 GeV, produced predominantly in conjunction with a low energy photon suggestive of FF∗ or F∗F∗ production. From events containing a π±, and η, and a low energy photon the F and F∗ masses were found to be 2.03 ± 0.06 and 2.14 ± 0.06 GeV, respectively.
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