Results 21 to 30 of about 211,027 (308)

Studying lepton family violation in lepton-lepton collisions [PDF]

open access: yesThe European Physical Journal C, 1998
11 pages, LaTeX, 1 PostScript figure.
Kabachenko, V. V., Pirogov, Yu. F.
openaire   +3 more sources

Looking forward to lepton-flavor-violating ALPs [PDF]

open access: yesJournal of High Energy Physics, 2020
We assess the status of past and future experiments on lepton flavor violating (LFV) muon and tau decays into a light, invisible, axion-like particle (ALP), a.
L. Calibbi   +3 more
semanticscholar   +1 more source

Quark–lepton universality and large leptonic mixing [PDF]

open access: yesNuclear Physics B, 2006
22 pages, 2 figures; references added; abstract slightly ...
Joshipura, Anjan S., Smirnov, A. Yu.
openaire   +2 more sources

Test of lepton flavor universality and search for lepton flavor violation in B → Kℓℓ decays

open access: yesJournal of High Energy Physics, 2021
We present measurements of the branching fractions for the decays B → Kμ+μ− and B → Ke+e−, and their ratio (RK), using a data sample of 711 fb−1 that contains 772 × 106BB¯\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{
S. Choudhury   +222 more
semanticscholar   +1 more source

Modular invariant quark and lepton models in double covering of S4 modular group [PDF]

open access: yesPhysical Review D, 2020
We perform a comprehensive analysis of the homogeneous finite modular group $\Gamma'_4\equiv S'_4$ which is the double covering of $S_4$ group. The weight 1 modular forms of level 4 are constructed in terms of Dedekind eta function, and they transform as
Xiang-Gan Liu   +2 more
semanticscholar   +1 more source

Leptonic Scalars versus Scalar Leptons [PDF]

open access: yesProceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2019), 2020
The notion of scalars having lepton number, i.e. leptonic scalars, is discussed without supersymmetry, where scalar leptons reside. It is shown how dark parity comes from lepton parity, as well as its possible origin from grand unification. Two specific phenomenological applications to dark matter are described.
openaire   +1 more source

Charm physics confronts high-pT lepton tails [PDF]

open access: yesJournal of High Energy Physics, 2020
We present a systematic survey of possible short-distance new-physics effects in (semi)leptonic charged- and neutral-current charmed meson decays. Using the Standard Model Effective Field Theory (SMEFT) to analyze the most relevant experimental data at ...
J. Fuentes-Martín   +3 more
semanticscholar   +1 more source

Leptonic unitarity triangles [PDF]

open access: yesPhysical Review D, 2020
We present a comprehensive analysis of leptonic unitarity triangles, using both current neutrino oscillation data and projections of next-generation oscillation measurements. Future experiments, sensitive to the degree of CP violation in the lepton sector, will enable the construction of precise triangles. We show how unitarity violation could manifest
Sebastian A. R. Ellis   +2 more
openaire   +2 more sources

Test of the universality of τ and μ lepton couplings in W-boson decays with the ATLAS detector [PDF]

open access: yesNature Physics, 2020
The standard model of particle physics encapsulates our best current understanding of physics at the smallest scales. A fundamental axiom of this theory is the universality of the couplings of the different generations of leptons to the electroweak gauge
G. Aad   +499 more
semanticscholar   +1 more source

Leptonic and semi-leptonic B decays [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2001
We present results for the semi-leptonic and leptonic decays of B mesons. These non-perturbative matrix elements are important for constraining the CKM matrix. Results are presented for the pseudoscalar and vector decay constants, as well as flavour breaking ratios and heavy quark symmetry relations.
UKQCD Collaboration, Maynard, C. M.
openaire   +2 more sources

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