Results 51 to 60 of about 30,887 (231)

Semi-leptonic decays of a particle to three bodies

open access: yesVisión electrónica, 2018
Is presented the dynamics and kinematics of the semi-leptonic decays with interaction  V-A calculating the decay width and the fraction of decay for each process using spectator model.
Mauricio Rozo-Clavijo   +2 more
semanticscholar   +1 more source

Renormalisation group analysis of scalar Leptoquark couplings addressing flavour anomalies: emergence of lepton-flavour universality

open access: yesJournal 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
doaj   +1 more source

Semi-leptonic $D_s^+$(1968) decays as a scalar meson probe [PDF]

open access: yes, 2011
The unusual multiplet structures associated with the light spin zero mesons have recently attracted a good deal of theoretical attention. Here we discuss some aspects associated with the possibility of getting new experimental information on this topic ...
Amir H. Fariborz   +5 more
core   +3 more sources

The transition form factors for semi-leptonic weak decays of $J/\psi$ in QCD sum rules

open access: yes, 2007
Within the Standard Model, we investigate the semi-leptonic weak decays of $J/\psi$. The various form factors of $J/\psi$ transiting to a single charmed meson ($D^{(*)}_{(d,s)}$) are studied in the framework of the QCD sum rules. These form factors fully
A. Khodjamirian   +81 more
core   +1 more source

Weak Decays of Heavy-Light Mesons on the Lattice: Semi-Leptonic Formfactors [PDF]

open access: yes, 1995
We report results (on an intermediate statistics sample) of a study of weak semi-leptonic formfactors of $B$ and $D$ decays, addressing the uncertainties from mass extrapolations to chiral and to heavy quarks.
Güsken, S., Schilling, K., Siegert, G.
core   +2 more sources

Semi-leptonic and Non-leptonic $B$ meson decays to charmed mesons

open access: yes, 2012
We study the semi-leptonic and non-leptonic $B$ weak decays which are governed by the $B\rightarrow D^{(*)}$ transitions. The branching ratios, CP asymmetries (CPA) and polarization fractions (FA) of non-leptonic decays are investigated in the ...
Dai Y S   +6 more
core   +1 more source

Progress on semi-leptonic B(s) decays [PDF]

open access: yesModern Physics Letters A, 2014
We report on the current status of semi-leptonic B(s) decays, including rare decays, and the extraction of the absolute values of the CKM matrix elements |Vcb| and |Vub|.
openaire   +3 more sources

Bounds on R-parity violating supersymmetric couplings from leptonic and semi-leptonic meson decays

open access: yes, 2006
We present a comprehensive update of the bounds on R-Parity violating supersymmetric couplings from lepton-flavour- and lepton-number-violating decay processes. We consider tau and mu decays as well as leptonic and semi-leptonic decays of mesons.
Ben O’Leary   +5 more
core   +1 more source

Measurement of the Bottom contribution to non-photonic electron production in $p+p$ collisions at $\sqrt{s} $=200 GeV [PDF]

open access: yes, 2010
The contribution of $B$ meson decays to non-photonic electrons, which are mainly produced by the semi-leptonic decays of heavy flavor mesons, in $p+p$ collisions at $\sqrt{s} =$ 200 GeV has been measured using azimuthal correlations between non-photonic ...
Aggarwal M.M.   +387 more
core   +8 more sources

An ``Improved" Lattice Study of Semi-leptonic Decays of D-Mesons [PDF]

open access: yes, 1994
We present results of a lattice computation of the matrix elements of the vector and axial-vector currents which are relevant for the semi-leptonic decays $D \rightarrow K$ and $D \rightarrow K^*$.
Bowler, Ken C.   +8 more
core   +2 more sources

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