Search for the 0 - Glueball in (1S) and (2S) decays
Journal
Physical Review D
Journal Volume
95
Journal Issue
1
Date Issued
2017
Author(s)
Jia S. et al.
Shen, C.P.
Yuan, C.Z.
Adachi, I.
Aihara, H.
Al Said, S.
Asner, D.M.
Aushev, T.
Ayad, R.
Babu, V.
Badhrees, I.
Abstract
We report the first search for the JPC=0 - glueball in (1S) and (2S) decays with data samples of (102±2)×106 and (158±4)×106 events, respectively, collected with the Belle detector. No significant signals are observed in any of the proposed production modes, and the 90% credibility level upper limits on their branching fractions in (1S) and (2S) decays are obtained. The inclusive branching fractions of the (1S) and (2S) decays into final states with a χc1 are measured to be B( (1S)→χc1+anything)=(1.90±0.43(stat)±0.14(syst))×10-4 with an improved precision over prior measurements and B((2S)→χc1+anything)=(2.24±0.44(stat)±0.20(syst))×10-4 for the first time. ? 2017 American Physical Society.
Type
journal article