Jun 2 – 5, 2020
Europe/Zurich timezone

Baryogenesis and Dark Matter from B Mesons (8'+2')

Jun 3, 2020, 3:20 PM
Talk Wednesday


Miguel Escudero (King's College London)


In this talk, based on arXiv:1810.00880 and ongoing work, I will present a new mechanism of Baryogenesis and Dark Matter production in which both the dark matter relic abundance and the baryon asymmetry arise from neutral B meson oscillations and subsequent decays in the early Universe.

This mechanism would have distinctive experimental signals that I will discuss in detail:

i) the new decay mode of B mesons into a baryon and missing energy, with a BR > 10^{-3}.
ii) a positive semileptonic asymmetry in neutral B meson decays, > 10^{-5}.
iii) the new decay mode of b-flavored baryons into mesons and missing energy, with BR > 10^{-3}.

These unique collider signatures are testable at current collider experiments, such as the LHC and Belle-II, allowing for a distinct probe of this mechanism.

Primary authors

Miguel Escudero (King's College London) Gonzalo Alonso-Álvarez (Universität Heidelberg) Gilly Elor

Presentation materials