https://doi.org/10.1140/epja/i2008-10639-9
Regular Article - Theoretical Physics
Decay rates of quarkonia with NRQCD formalism using spectroscopic parameters of potential models
1
Physics Section, Applied Sciences and Humanities Department, Sardar Vallabh National Institute of Technology, 395007, Surat, Gujarat, India
2
Applied Physics Department, Faculty of Technology and Engineering, The M S University of Baroda, 390001, Vadodara, Gujarat, India
3
Department of Physics, Sardar Patel University, 388 120, Vallabh Vidyanagar, Gujarat, India
* e-mail: jnpandya@mail.com
Received:
25
June
2008
Accepted:
19
August
2008
Published online:
12
September
2008
Decay rates of quarkonia are studied within the framework of NRQCD formalism. The basic parameters of the formalism have been obtained from different potential schemes studied for the spectra of quarkonia. We estimate the heavy-quarkonia mass spectra, radiative and leptonic widths and compare them with other contemporary theoretical approaches and experimental results.
PACS: 12.39.Jh Nonrelativistic quark model – / 12.39.Pn Potential models – / 13.20.Gd Decays ofJ/ψ , ϒ , and other quarkonia –
© SIF, Springer-Verlag Berlin Heidelberg, 2008
