M(B∗c)–M(Bc) splitting from nonrelativistic renormalization group

• DOI: 10.1016/j.physletb.2004.04.066
• Publication Date: 2004-06-02T20:58:06Z
• Authors: A.A. Penin; A. Pineda; V.A. Smirnov; M. Steinhauser
• Keywords: Charm (quantum number)

We compute the hyperfine splitting in a heavy quarkonium composed of different flavors next-to-leading logarithmic approximation using nonrelativistic renormalization group. predict mass difference vector and pseudoscalar charm-bottom mesons to be M(B∗c)−M(Bc)=65±24 (th)+19−16(δαs) MeV.