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Blokland I, Czarnecki A, Slusarczyk M, et al. Heavy-to-light-quark decays with two-loop accuracy. Phys Rev Lett. 2004;93(6):062001doi: 10.1103/PhysRevLett.93.062001.
Blokland, I., Czarnecki, A., Slusarczyk, M., & Tkachov, F. (2004). Heavy-to-light-quark decays with two-loop accuracy. Physical review letters, 93(6), 062001. https://doi.org/10.1103/PhysRevLett.93.062001
Blokland, Ian, et al. "Heavy-to-light-quark decays with two-loop accuracy." Physical review letters vol. 93,6 (2004): 062001. doi: https://doi.org/10.1103/PhysRevLett.93.062001
Blokland I, Czarnecki A, Slusarczyk M, Tkachov F. Heavy-to-light-quark decays with two-loop accuracy. Phys Rev Lett. 2004 Aug 06;93(6):062001. doi: 10.1103/PhysRevLett.93.062001. Epub 2004 Aug 04. PMID: 15323622.
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Phys Rev Lett. 2004 Aug 06;93(6):062001. doi: 10.1103/PhysRevLett.93.062001. Epub 2004 Aug 04.

Heavy-to-light-quark decays with two-loop accuracy.

Physical review letters

Ian Blokland, Andrzej Czarnecki, Maciej Slusarczyk, Fyodor Tkachov

Affiliations

  1. Department of Physics, University of Alberta, Edmonton, AB T6G 2J1, Canada.

PMID: 15323622 DOI: 10.1103/PhysRevLett.93.062001

Abstract

We present a determination of a new class of three-loop Feynman diagrams describing heavy-to-light transitions. We apply it to find the O(alpha2(s)) corrections to the top quark decay t --> bW and to the distribution of lepton invariant mass in the semileptonic b quark decay b --> ulnu. We also confirm the previously determined total rate of that process as well as the O(alpha2) corrections to the muon lifetime.

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