The pion mass and decay constant at three loops in two-flavour chiral perturbation theory
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2017)181
Abstract: A bstractA calculation of the pion mass and decay constant at NNNLO in two-flavour chiral perturbation theory is presented. The results are cross-checked by using both the exponential and square root parametrizations of the Goldstone… read more here.
Keywords: flavour chiral; decay constant; two flavour; mass ... See more keywords
Applicability of several Feynman-α formulae to a subcritical thermal reactor
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Nuclear Science and Technology"
DOI: 10.1080/00223131.2021.1909508
Abstract: ABSTRACT For an university training and research reactor of Kindai University, the Feynman-α analyses based on several formulae are carried out to examine the applicability of these formulae to the subcritical thermal reactor system. The… read more here.
Keywords: subcritical thermal; formula; decay constant; thermal reactor ... See more keywords
Determination of the Pseudoscalar Decay Constant f_{D_{s}^{+}} via D_{s}^{+}→μ^{+}ν_{μ}.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.122.071802
Abstract: Using a 3.19 fb^{-1} data sample collected at an e^{+}e^{-} center-of-mass energy of E_{cm}=4.178 GeV with the BESIII detector, we measure the branching fraction of the leptonic decay D_{s}^{+}→μ^{+}ν_{μ} to be B_{D_{s}^{+}→μ^{+}ν_{μ}}=(5.49±0.16_{stat}±0.15_{syst})×10^{-3}. Combining our branching fraction with… read more here.
Keywords: decay constant; determination pseudoscalar; pseudoscalar decay; stat syst ... See more keywords
Decay constant of $$B_s$$ and $$B^*_s$$ mesons from $$\mathrm{N_f}=2$$ lattice QCD
Sign Up to like & getrecommendations! Published in 2020 at "European Physical Journal C"
DOI: 10.1140/epjc/s10052-020-7965-z
Abstract: We report on a two-flavor lattice QCD estimate of the and leptonic decays parameterized by the decay constants and . In addition to their relevance for phenomenology, their extraction has allowed us to investigate whether… read more here.
Keywords: decay constant; mesons mathrm; mathrm lattice; lattice qcd ... See more keywords