Results 111 to 120 of about 5,931 (207)

Non-Leptonic Weak Decays of B Mesons

, 1997
We present a detailed study of non-leptonic two-body decays of B mesons based on a generalized factorization hypothesis. We discuss the structure of non-factorizable corrections and present arguments in favour of a simple phenomenological description of ...
BERTHOLD STECH, Neubert, Matthias, Stech, Berthold, MATTHIAS NEUBERT   +3 more
core   +1 more source

Effective field theory analysis of rare |∆c| = |∆u| = 1 charm decays

Journal of High Energy Physics
We perform a global analysis of |∆c| = |∆u| = 1 transitions using recent data on D 0 → μ + μ − , D + → π + μ + μ − , Λ c → p μ + μ − , and D 0 → π + π − μ + μ − decays, and work out constraints on new physics Wilson coefficients C 7 , 9 , 10 ′ $$ {C}_{7 ...
Hector Gisbert, Gudrun Hiller, Dominik Suelmann   +2 more
doaj   +1 more source

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

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

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

Testing lepton flavor universality at the Electron-Ion Collider

Journal of High Energy Physics
Measurements of b → cτ − ν ¯ τ $$ b\to {c\tau}^{-}{\overline{\nu}}_{\tau } $$ transitions at colliders are highly motivated for testing lepton flavor universality (LFU), a cornerstone hypothesis of the Standard Model (SM).
Yong jie Deng, Xu-Hui Jiang, Tianbo Liu, Bin Yan   +3 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

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

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

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