Results 51 to 60 of about 5,931 (207)

Nonlocal form factor of chromomagnetic penguin in B → Kℓ + ℓ − from QCD light-cone sum rules

Journal of High Energy Physics
The branching fraction of the B → Kℓ + ℓ − decay has been measured recently by the LHC experiments, showing a deviation from theory predictions based on the Standard Model (SM).
T. Hurth, A. Khodjamirian, F. Mahmoudi, D. Mishra, Y. Monceaux, S. Neshatpour   +5 more
doaj   +1 more source

High-pT LHC constraints on SMEFT operators affecting rare kaon and hyperon decays

Journal of High Energy Physics
We consider the constraints on new physics affecting rare kaon and hyperon decay as parametrized by a low energy effective theory that can be obtained from high-pT observables at LHC. To this end, we match the relevant low energy Wilson coefficients onto
Arnab Roy, German Valencia
doaj   +1 more source

Measurement of b-hadron branching fractions for two-body decays into charmless charged hadrons [PDF]

, 2012
Based on data corresponding to an integrated luminosity of 0.37 fb−1 collected by the LHCb experiment in 2011, the following ratios of branching fractions are measured: B(B0→π+π−)/B(B0→K+π−)=0.262±0.009±0.017,(fs/fd)⋅B(B0s→K+K−)/B(B0→K+π−)=0.316±0.009±0 ...
HASH(0x55a6805868f0), Harrison, P. F., Dossett, D., Whitehead, M. (Mark), Poluektov, Anton, Kreps, Michal, Reid, Matthew M., Back, J. J., Pilar, T., Williams, M. P., Latham, Thomas, Gershon, T. J., Silva Coutinho, R.   +12 more
core   +1 more source

Investigating non-local contributions in B s → ϕ ℓ ¯ ℓ $$ {B}_s\to \phi \overline{\ell}\ell $$ including higher-twist effects

Journal of High Energy Physics
We analyze the impact of higher-twist three-particle B s -meson light-cone distribution amplitudes (LCDAs) on the non-local form factors for the B s → ϕ ℓ ¯ ℓ $$ {B}_s\to \phi \overline{\ell}\ell $$ transition focusing on the ‘charm-loop’ contribution ...
M. S. A. Alam Khan, Rusa Mandal, Praveen S Patil, Ipsita Ray   +3 more
doaj   +1 more source

Non-Leptonic Decays of Bileptons [PDF]

, 2021
We provide a detailed analysis of the decays of doubly-charged bilepton gauge bosons $Y^{\pm\pm}$, as predicted in models based on a $SU(3)_C\times SU(3)_L\times U(1)_X$ symmetry.
Claudio Coriano'
core   +1 more source

Semi-leptonic decays of charmed baryons [PDF]

Nuclear Physics B, 1976
Abstract We present estimates of semi-leptonic decays of the charmed 1+ 2 baryons, members of the SU(3) 3∗ and 6 multiplets, into ordinary 1+ 2 and 3+ 2 baryons. We give general expressions for decay rates and the mass M(B+l) spectra.
openaire   +1 more source

CP-violation in cascade decays at the LHC [PDF]

, 2010
We study the potential to observe CP-violating effects in various supersymmetric cascade decay chains at the LHC. Asymmetries composed by triple products of momenta of the final state particles are sensitive to CP-violating effects.
TATTERSALL, JAMIE
core  

τ dipole moments via radiative leptonic τ decays [PDF]

, 2016
We propose a new method to probe the magnetic and electric dipole moments of the τ lepton using precise measurements of the differential rates of radiative leptonic τ decays at high-luminosity B factories.
Passera, Massimo, Fael, Matteo, Epifanov, D., Mercolli, Lorenzo, Eidelman, S.   +4 more
core   +1 more source

Experimental prospects for Vud , Vus , Vcd , Vcs and (semi-)leptonic D decays at LHCb

, 2018
Experimental prospects for Vud, Vus, Vcd, Vcs and (semi-)leptonic D decays at LHC ...
Davis, Adam, Davis, Adam (6339227)
core   +1 more source

Radiative semileptonic decays of beautiful hadrons

Journal of High Energy Physics
We derive predictions for the hadronic matrix elements of radiative semileptonic decays of beautiful hadrons within Heavy Quark Effective Theory (HQET), relevant for future measurements at Belle II and LHCb.
Federico Cima, Michele Papucci
doaj   +1 more source