Principal Investigators | |
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Prof. Alexander Lenz | Siegen University |
Prof. Ulrich Nierste | Karlsruhe Institute of Technology |
Prof. Matthias Steinhauser | Karlsruhe Institute of Technology |
The main focus of project C1b are lifetimes and inclusive decays of B and D mesons. Based on the Heavy Quark Expansion a systematic expansion of the physical quantities are obtained as an expansion in the inverse heavy quark mass. Several matching coefficient are computed to higher order in perturbative QCD and their phenomenological implications are studied.
P3H-22-051 |
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Title: The width difference in the $B-\bar{B}$ system at next-to-next-to-leading order of QCD |
Type: Paper |
Authors: Marvin Gerlach, Ulrich Nierste, Vladyslav Shtabovenko, Matthias Steinhauser |
arXiv: 2205.07907 |
Info: Published in Phys.Rev.Lett. 129 (2022) 10, 102001 |