Results 131 to 140 of about 161,169 (272)

New physics effects in (Lambda_b -> Lambda l^+ l^-) decay with lepton polarizations

, 2002
We study lepton polarization asymmetries in the (Lambda_b -> Lambda l^+ l^-) decay using the most general model independent effective Hamiltonian. The dependence of the lepton polarizations and their combinations on the new Wilson coefficients are ...
Aliev, T. M., Ozpineci, A., Savci, M.
core   +1 more source

Lepton flavor violation with tau leptons

SciPost Physics Proceedings
We review the status and importance of lepton flavor violation with tauons, focusing on overlooked flavor-breaking patterns as well as tau-flavor violation in nucleon decays.
openaire   +3 more sources

The scalar unparticle effect on the charged lepton electric dipole moment

, 2007
We study the charged lepton electric dipole moment which is induced by the scalar unparticle mediation and we predict the appropriate range for the free parameters appearing in the effective lagrangian which drives the unparticle-standard model lepton ...
Aliev T. M., Czarnecki A., E. O. ILTAN, Iltan E., Iltan E., Khriplovich I. B.   +5 more
core   +1 more source

On sum rules for semi-leptonic b → c and b → u decays

Journal of High Energy Physics
The semi-leptonic b → clν processes are receiving a lot of attention, as the lepton flavor universality (LFU) violation has been hinted by the measured ratios R D ∗ $$ {R}_{D^{\left(\ast \right)}} $$ = Γ(B → D (∗) τν)/Γ(B → D (∗) ℓν) for ℓ = e, μ ...
Wen-Feng Duan, Syuhei Iguro, Xin-Qiang Li, Ryoutaro Watanabe, Ya-Dong Yang   +4 more
doaj   +1 more source

Lepton Flavour Universality tests in $B$ decays as a probe for New Physics

, 2018
In the Standard Model (SM), the coupling of the electroweak gauge bosons to the leptons is lepton flavour universal. Tests of this property constitute sensitive probes for new physics models that violate lepton flavour universality.
Langenbruch, Christoph
core  

Leptogenesis from Spin-Gravity Coupling Following Inflation

, 2006
The energy levels of the left and the right handed neutrinos is split in the background of gravitational waves generated during inflation which in presence of lepton number violating interactions gives rise to a net lepton asymmetry at equilibrium ...
A. R. Prasanna, A. R. Liddle, G. Lambiase, J. Schwinger, Subhendra Mohanty   +4 more
core   +1 more source

Neutrino mass matrices with three or four vanishing cofactors and nondiagonal charged lepton sector [PDF]

, 2017
S. Dev, Desh Raj, Radha Raman Gautam
openalex   +1 more source

Challenge to the Mystery of the Charged Lepton Mass Formula [PDF]

, 2005
Yoshio Koide
openalex   +1 more source

Searches for lepton flavour and lepton number violation in kaon decays

, 2011
Searches for lepton flavour and lepton number violation in kaon decays by the NA48/2 and NA62 experiments at CERN are presented. A new measurement of the helicity suppressed ratio of charged kaon leptonic decay rates $RK=BR(Ke2)/BR(Kmu2) to sub-percent ...
Goudzovski, Evgueni
core