RT Journal Article
T1 Potential NRQCD for unequal masses and the Bc spectrum at N3LO
A1 Peset Martín, Clara María
A1 Pineda, Antonio
A1 Stahlhofen, Maximilian
AB We determine the 1/m and 1/m 2 spin-independent heavy quarkonium potentials in the unequal mass case with (α 3) and (α 2) accuracy, respectively. We discuss in detail different methods to calculate the potentials, and show the equivalence among them. In particular we obtain, for the first time, the manifestly gauge invariant 1/m and 1/m 2 potentials in terms of Wilson loops with next-to-leading order (NLO) precision. As an application of our results we derive the theoretical expression for the B c spectrum in the weak-coupling limit through next-to-next-to-next-to-leading order (N3LO).
PB Springer
SN 1029-8479
YR 2016
FD 2016-05-03
LK https://hdl.handle.net/20.500.14352/100874
UL https://hdl.handle.net/20.500.14352/100874
LA eng
NO Peset, C., Pineda, A., & Stahlhofen, M. (2016). Potential NRQCD for unequal masses and the B c spectrum at N3LO. Journal of High Energy Physics, 2016(5), 1-63.
NO Catalan grant
NO German Research Foundation (DFG)
NO DFG Emmy-Noether Grant
DS Docta Complutense
RD 22 abr 2025