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- W4301119545 abstract "The lightest gluonic meson is expected with J^{PC}=0^{++}, calculations in full QCD point towards a mass of around 1 GeV. The interpretation of the scalar meson spectrum is hindered as some states are rather broad. In a largely model-independent analysis of pi+ pi- to pi+ pi-, pi0 pi0 scattering in the region 600-1800 MeV a unique solution for the isoscalar S-wave is obtained. The resonances f_0(980), f_0(1500) and the broad f_0(600) or ``sigma'' are clearly identified whereas f_0(1370) is not seen at the level B(f_0(1370)to pi pi)gtrsim 10%. Arguments for the broad state to be a glueball are recalled. We see no contradiction with the reported large B(sigma to gamma gamma) and propose some further experimental tests." @default.
- W4301119545 created "2022-10-04" @default.
- W4301119545 creator A5052500005 @default.
- W4301119545 date "2007-11-26" @default.
- W4301119545 modified "2023-09-27" @default.
- W4301119545 title "The glueball among the light scalar mesons" @default.
- W4301119545 doi "https://doi.org/10.48550/arxiv.0711.3902" @default.
- W4301119545 hasPublicationYear "2007" @default.
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