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Nuclear Physics B - Proceedings Supplements, 1997 10 pages, Latex, espcrc2.sty; Invited Talk presented at 4th KEK Topical Conference on Flavor Physics, Tsukuba, Japan, 29-31 Oct. 1996, to appear in Nucl. Phys.
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Proceedings of The 13th International Conference on B-Physics at Hadron Machines — PoS(BEAUTY 2011), 2011 Rare radiative, leptonic and semileptonic B meson decays are valuable probes of physics beyond the Standard Model. This talk reviews the sensitivity to new physics of observables related to two rare B decays to be measured in the near future at LHC, B(s) -> mu+ mu- and B -> K* mu+ mu-.
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Journal of High Energy Physics, 2023 Leptoquarks with masses between 2 TeV and 50 TeV are commonly invoked to explain deviations between data and Standard-Model (SM) predictions of several observables in the decays b → cτ ν ¯ $$ b\to c\tau \overline{\nu} $$ and b → sℓ + ℓ − with ℓ = e, μ ...
Marco Fedele +2 more
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Rare b decays meet high-mass Drell-Yan
Journal of High Energy Physics, 2023 Rare b hadron decays are considered excellent probes of new semileptonic four-fermion interactions of microscopic origin. However, the same interactions also correct the high-mass Drell-Yan tails.
Admir Greljo +3 more
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Dispersive analysis of B → K (*) and B s → ϕ form factors
Journal of High Energy Physics, 2023 We propose a stronger formulation of the dispersive (or unitarity) bounds à la Boyd-Grinstein-Lebed (BGL), which are commonly applied in analyses of the hadronic form factors for B decays.
Nico Gubernari +3 more
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On the impact of meson mixing on B s → ϕee angular observables at low q 2
Journal of High Energy Physics, 2023 Decays based on the b → sγ transition are expected to yield left-handed photons in the Standard Model, but could be particularly sensitive to New Physics contributions modifying the short-distance Wilson coefficients C $$ \mathcal{C} $$ 7 and C ...
Sébastien Descotes-Genon +2 more
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Comptes Rendus. Physique, 2020 The article reviews the status of rare K decay physics. The explored area covers a broad program, ranging from precise tests of flavour theory and CP-violation to the searches for explicit violations of the standard model and the study of strong ...
Ceccucci, Augusto, Lazzeroni, Cristina
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FCNC B and K meson decays with light bosonic Dark Matter
Journal of High Energy Physics, 2023 We consider decays of B and K mesons into a pseudo-scalar or vector meson plus missing energy. Within the SM, these modes originate from flavor changing neutral current (FCNC) processes with two neutrinos in the final state. In this paper we consider the
Xiao-Gang He +2 more
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Acta Physica Polonica B, 2013 In this paper, we present a short review of searches for charged lepton flavour violation on the example of rare muon decays. We discuss the evaluation of electron spectrum for muon decay in orbit which is a background process for conversion experiments.
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Improved Standard-Model prediction for K L → ℓ + ℓ −
Journal of High Energy PhysicsWe present a comprehensive calculation of the K L → γ ∗ γ ∗ form factor in dispersion theory, using input from the leptonic decays K L → ℓ + ℓ − γ, $${K}_{L}\to {{\ell}}_{1}^{+}{{\ell}}_{1}^{-}{{\ell}}_{2}^{+}{{\ell}}_{2}^{-}$$ , the hadronic mode K L ...
Martin Hoferichter +2 more
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