Results 11 to 20 of about 5,868 (157)
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 $β=6.4$, using the Wilson action, and at $β=6.0$, using the Clover action, are reported.
Abada, A +27 more
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Searching for new physics in semi-leptonic baryon decays [PDF]
Modern Physics Letters A, 2017 We propose two different and complementary observables for singling out possible signals of physics beyond the Standard Model (SM) in the semi-leptonic decays [Formula: see text], both with the [Formula: see text] lepton and with a light lepton. The two observables are the partial decay width and a T-odd asymmetry, whose respective sensitivities to ...
Di Salvo, Elvio, Ajaltouni, Ziad J.
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Predictions and tests for semi-leptonic decays of beauty hadrons [PDF]
International Journal of Modern Physics AWe make predictions and propose tests for the semi-leptonic decays [Formula: see text] and [Formula: see text], with l = e, [Formula: see text] and [Formula: see text]. Preliminarily, we study such processes according to the [Formula: see text] scheme, which helps interpreting the results of previous analyses.
Di Salvo, Elvio +2 more
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Study of the b → dℓℓ transitions in the Standard Model and test of New Physics sensitivities
Journal of High Energy Physics, 2023 After incorporating all the available experimental data and the most up-to-date Lattice and light cone sum rule (LCSR) inputs on the form factors, we analyze the exclusive b → uℓν ℓ and b → dℓℓ decays simultaneously.
Aritra Biswas +3 more
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A new approach to semi-leptonic tags in $B$-meson semi-invisible decays [PDF]
, 2022 Kinematic variables designed for pairwise decays to partly undetected final states -- a prominent example being $M_{T2}$ and its Lorentz-invariant version $M_2$-- have been extensively deployed in high-$p_T$ collider searches.
Guadagnoli, Diego +7 more
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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 +5 more
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Revisiting inclusive decay widths of charmed mesons
Journal of High Energy Physics, 2022 Determining for the first time the Darwin operator contribution for the non-leptonic charm-quark decays and using new non-perturbative results for the matrix elements of ∆C = 0 four-quark operators, including eye-contractions, we present a comprehensive ...
Daniel King +5 more
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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 +2 more
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B Physics and CP Violation, 1998 Latex2.09, uses sprocl.sty and epsf.sty. 10 pages with 3 postscript files included.
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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 +3 more
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