Scalar glueball, scalar quarkonia, and their mixing
نویسندگان
چکیده
منابع مشابه
Scalar Glueball, Scalar Quarkonia, and their Mixing
The isosinglet scalar mesons f0(1710), f0(1500), f0(1370) and their mixing are studied. We employ two recent lattice results as the starting point; one is the isovector scalar meson a0(1450) which displays an unusual property of being nearly independent of quark mass for quark masses smaller than that of the strange, and the other is the scalar glueball mass at 1710 MeV in the quenched approxim...
متن کاملMixing of Scalar Glueball and Scalar Quarkonia
The isosinglet scalar mesons f0(1710), f0(1500), f0(1370) and their mixing are studied. Two recent lattice results are employed as the starting point; one is the approximate SU(3) symmetry in the scalar sector above 1 GeV for the connected insertion part without qq̄ annihilation, and the other is the scalar glueball mass at 1710 MeV in the quenched approximation. In the SU(3) symmetry limit, f0(...
متن کاملScalar nonet quarkonia and the scalar glueball: mixing and decays in an effective chiral approach
We study the strong and electromagnetic decay properties of scalar mesons above 1 GeV within a chiral approach. The scalar-isoscalar states are treated as mixed states of quarkonia and glueball configurations. A fit to the experimental mass and decay rates listed by the Particle Data group is performed to extract phenomenological constraints on the nature of the scalar resonances and to the iss...
متن کاملScalar Charmonium and Glueball Mixing in E
We study the possibility of the scalar charmonium and glueball mixing in e + e − annihilation at √ s = 10.6 GeV. The effects can be used to explain the unexpected large cross section (12 ± 4 fb) and the anomalous angular distribution (α = −1.1 +0.8 −0.6) of the exclusive e + e − → J/ψχ c0 process observed by Belle experiments at KEKB. We calculate the helicity amplitudes for the process e + e −...
متن کاملScalar Quarkonium and the Scalar Glueball
The identification of fJ(1710) as the lightest scalar glueball is supported at present by two different sets of calculations. For the valence approximation to the infinite volume continuum limit of the lightest scalar glueball mass, a calculation on GF11 [1], using 25000 to 30000 gauge configurations, gives 1740 ± 71 MeV. An independent calculation by the UKQCD-Wuppertal [2] collaboration, usin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2006
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.74.094005