arXiv subjects

Andriy Badin

Publications and source records attributed to Andriy Badin.

4 recordsLinked to original sources

arXiv2010

Searching for light Dark Matter in heavy meson decays

Beauty and charm e+e- factories running at resonance thresholds have unique capabilities for studies of the production of light Dark Matter particles in the decays of B_q (D) meson pairs. We provide a comprehensive study of light Dark Matter production in heavy meson decays with missing energy in the final state, such as B_q (D^0) -> "missing energy" and B_q (D^0) -> γ+ "missing energy". We argue that such transitions can be studied at the current flavor factories (and future super-flavor factories) by tagging the missing-energy decays with B_q (D^0) decays "on the other side".

hep-ph↗

arXiv2009

Annihilation of light dark matter into photons in model-independent approach

We examine annihilation of light bosonic Dark Matter into pair of photons in model-independent way. We consider the simplest generic Lagrangian describing such process and then compare results to the available experimental data. Then we match our results with particular Dark matter models and determine possible constrains onto parameter space of those models.

hep-ph↗

arXiv2009

Lifetime difference in B_s mixing: Standard Model and beyond

We present a calculation of $1/m_b^2$ corrections to the lifetime differences of $B_s$ mesons in the heavy-quark expansion. We find that they are small to significantly affect $ΔΓ$ $(B_s)$ and present the result for lifetime difference including non-perturbative $1/m_b$ and $1/m_b^2$ corrections. We also analyze the generic $ΔB$ = 1 New Physics contributions to the lifetime difference of $B_s$ mesons and provide several examples

hep-ph↗

arXiv2007

Lifetime Difference in B_s mixing: Standard Model and beyond

We present a calculation of 1/m^2_b corrections to the lifetime differences of B_s mesons ΔΓ_s in the heavy-quark expansion. We find that they are small to significantly affect ΔΓ_s and present the result for lifetime difference including non-perturbative 1/m_b and 1/m_b^2 corrections. We also analyze the generic ΔB = 1 New Physics contributions to ΔΓ_s and provide several examples.

hep-ph↗