Results 101 to 110 of about 2,021,845 (193)

New physics in rare B decays after Moriond 2021. [PDF]

Eur Phys J C Part Fields, 2021
Altmannshofer W, Stangl P.
europepmc   +1 more source

Muon mass correction in partial wave analyses of charmed meson semi-leptonic decays [PDF]

We derive the parameterization formula for partial wave analyses of charmed meson semi-leptonic decays with consideration of the effects caused by the lepton mass.
Ke, Bai-Cian, Wang, En, Zhang, Han, Yu, Yao   +3 more
core   +1 more source

Hyperon semileptonic decays in QCD sum rules

Journal of High Energy Physics
We investigate the hyperon semileptonic decays within the framework of QCD sum rules. The flavor SU(3) symmetry breaking effects are analyzed via the relevant form factors and corresponding branching fractions.
Sheng-Qi Zhang, Xuan-Heng Zhang, Cong-Feng Qiao   +2 more
doaj   +1 more source

Radiative corrections to the muon polarization in the semileptonic decay of a neutral kaon

Journal of High Energy Physics
A model-independent expression for the Dalitz plot of the semileptonic decays of a neutral kaon K μ 3 0 $$ {K}_{\mu 3}^0 $$ , including radiative corrections to order O $$ \mathcal{O} $$ [(α/π)(q/M 1)], where q is the four-momentum transfer and M 1 is ...
J. Vieyra, A. Martínez, M. Neri, A. Hernández-Galeana   +3 more
doaj   +1 more source

Constraining anomalous Wtb and related SMEFT couplings using low-energy and electroweak precision observables

Journal of High Energy Physics
We investigate constraints on couplings of Standard Model effective field theory (SMEFT) operators contributing to Wtb effective vertex at tree level. We study the one-loop level impact of these couplings on the low-energy flavour changing charged and ...
Subhajit Kala, Lipika Kolay, Lopamudra Mukherjee, Soumitra Nandi   +3 more
doaj   +1 more source

CP violation in decays into states with neutral kaons

Journal of High Energy Physics
CP violation in the kaon system can manifest itself in decays to final states containing neutral kaons. The effect is governed by an efficiency function that reflects the specific experimental setup.
Yuval Grossman, Paolo Leo, Alberto Martini, Guglielmo Papiri, Armine Rostomyan   +4 more
doaj   +1 more source

Lepton flavor violation and dilepton tails at the LHC. [PDF]

Eur Phys J C Part Fields, 2020
Angelescu A, Faroughy DA, Sumensari O.
europepmc   +1 more source

Disentangling left-handed and right-handed neutrino effects in B c → τ ν ¯ τ $$ {B}_c\to \tau {\overline{\nu}}_{\tau } $$ decay

Journal of High Energy Physics
Inspired by the anomalies in B → D ∗ τ ν ¯ τ $$ B\to {D}^{\left(\ast \right)}\tau {\overline{\nu}}_{\tau } $$ decay, in this work, we carefully study the influence of the most general dimension-six effective operators involving right-handed neutrinos on ...
Quan-Yi Hu
doaj   +1 more source

$\Omega_b$ semi-leptonic weak decays

, 2011
$\Omega_b \rightarrow \Omega_c^{(*)}$ semi-leptonic decays are studied in details. Relevant helicity amplitudes are written down. Both unpolarized and polarized $\Omega_b$ cases are considered. Decay angular distributions, asymmetry parameters and semileptonic decay rates are calculated, with numerical results using leading order results of the large ...
Du, Ming-Kai, Liu, Chun
openaire   +1 more source

An imperative study of the angular observables in Λ b → Λ c + → Λ π + ℓ − ν ¯ ℓ $$ {\Lambda}_b\to {\Lambda}_c^{+}\left(\to \Lambda {\pi}^{+}\right){\ell}^{-}{\overline{\nu}}_{\ell } $$ decay and probing the footprint of new physics

Journal of High Energy Physics
We study the four-fold angular distribution of the semileptonic Λ b → Λ c + → Λ π + ℓ − ν ¯ ℓ $$ {\Lambda}_b\to {\Lambda}_c^{+}\left(\to \Lambda {\pi}^{+}\right){\ell}^{-}{\overline{\nu}}_{\ell } $$ decay and find out analytical expressions for various ...
Soumitra Nandi, Shantanu Sahoo, Ria Sain
doaj   +1 more source