We use a modified version of the Nambu–Jona-Lasinio model which implements the QCD trace anomaly to calculate the two photons decay width of the glueball (f0(1500)) and of the two scalar mesons (f0(1370), fJ=0(1710)) to which it is mixed. We investigate the effect of this mixing over the coupling constants of the f0 states to the quarks.

Parai is an ancient musical instrument of Tamils. It generally played by Tamils living in the north-eastern regions Sri Lanka social, religious events, rituals and entertainment. As a mother instrument, from Sangam period till today, they look at this as first orgin other instruments. Since period, was used to announce news government orders people. Various sounds were on drums Sign language sy...