Results 31 to 40 of about 30,521 (228)

(Semi)leptonic kaon decays and neutral kaon mixing from lattice QCD [PDF]

Journal of Physics: Conference Series, 2022
We review recent progress on leptonic and semileptonic kaon decays and neutral kaon mixing from lattice QCD.
T. Kaneko
semanticscholar   +1 more source

Quark-hadron duality at work: lifetimes of bottom baryons

Journal of High Energy Physics, 2023
In the 1990s, very low experimental values for the lifetime ratio τ(Λ b )/τ(B d ) triggered a considerable amount of doubt in the applicability of the heavy quark expansion (HQE), which is based on the assumption of quark-hadron duality (QHD) for ...
James Gratrex, Alexander Lenz, Blaženka Melić, Ivan Nišandžić, Maria Laura Piscopo, Aleksey V. Rusov   +5 more
doaj   +1 more source

B → D1(2420) and B → D 1 ′ $$ {\mathrm{D}}_1^{\prime } $$ (2430) form factors from QCD light-cone sum rules

Journal of High Energy Physics, 2022
We perform the first calculation of form factors in the semileptonic decays B → D 1(2420)ℓν ℓ and B → D 1 ′ $$ {D}_1^{\prime } $$ (2430)ℓν ℓ using QCD light-cone sum rules (LCSRs) with B-meson distribution amplitudes. In this calculation the c-quark mass
Nico Gubernari, Alexander Khodjamirian, Rusa Mandal, Thomas Mannel   +3 more
doaj   +1 more source

Disintegration of beauty: a precision study

Journal of High Energy Physics, 2023
We update the Standard Model (SM) predictions for B-meson lifetimes within the heavy quark expansion (HQE). Including for the first time the contribution of the Darwin operator, SU(3) F breaking corrections to the matrix element of dimension-six four ...
Alexander Lenz, Maria Laura Piscopo, Aleksey V. Rusov   +2 more
doaj   +1 more source

Semi-leptonic decays of heavy mesons [PDF]

Nuclear Physics B - Proceedings Supplements, 1999
3 pages, 3 figures (LATTICE 98 matrixelement) Corrections to figures and ...
C M Maynard, C M Maynard
openalex   +4 more sources

Flavour physics with (semi)leptonic decays at forward spectrometers [PDF]

, 2018
E. Graverini
openalex   +2 more sources

SEMI-LEPTONIC B DECAY [PDF]

B Physics and CP Violation, 1998
Latex2.09, uses sprocl.sty and epsf.sty. 10 pages with 3 postscript files included.
openaire   +2 more sources

D- and B-meson semi-leptonic decays [PDF]

Nuclear Physics B - Proceedings Supplements, 1994
Recent results for semi-leptonic decays of $D$ and $B$ mesons at $ =6.4$, using the Wilson action, and at $ =6.0$, using the Clover action, are reported.
Abada, A, Allton, C, Bartoloni, A, Battista, C, Boucard, P, Cabasino, S, Cabibbo, N, Carpenter, D, Crisafulli, M, Güsken, S, Hernandez, P, Lubicz, V, Martinelli, G, Marzano, F, Paolucci, P, Pech, J, Pene, O, RAPUANO, FEDERICO, Sachrajda, C, Sarno, R, Schilling, K, Siegert, G, Stella, N, Todesco, G, Torelli, M, Tross, W, Vicini, P, Vladikas, A.   +27 more
openaire   +5 more sources

Semi-leptonic decays of B-mesons [PDF]

Nuclear Physics B - Proceedings Supplements, 1995
3 pages, uuencoded compressed postscript file; contribution to Lattice '94, 27 Sep - 1 Oct, Bielefeld, Germany; to appear in the ...
openaire   +2 more sources

Standard Model predictions for lepton flavour universality ratios of inclusive semileptonic B decays

Journal of High Energy Physics, 2022
We present Standard Model predictions for lepton flavour universality ratios of inclusive B → X(c) ℓ ν ¯ ℓ $$ \ell {\overline{\nu}}_{\ell } $$ . For the ℓ = μ, e, these ratios are very close to unity as expected.
Muslem Rahimi, K. Keri Vos
doaj   +1 more source