Meson hyperfine splittings and leptonic decays

May, 1975
5 pages
Published in:
  • Phys.Lett.B 57 (1975) 455-459
  • Published: 1975

Citations per year

19751988200120142025051015
Abstract: (Elsevier)
The 3 S- 1 S mass separations of the bound quark-antiquark systems, as arising from one-gluon exchange, in the charm color quartet scheme, are discussed for the ground mesons and their first radial excitations expecially in connection to leptonic decay rates. Overall consistency requires large modifications for the positronium-like formulae for annihilation and the possible role in this direction of an outstanding gluon radiative correction to the leptonic width is pointed out.