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Leptogenesis from Quantum Interference in a Thermal Bath

Related publications (62)

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Examining leptogenesis with lepton flavor violation and the dark matter abundance

Steve Blanchet

Within a supersymmetric (SUSY) type-I seesaw framework with flavor-blind universal boundary conditions, we study the consequences of requiring that the observed baryon asymmetry of the Universe be explained by either thermal or non-thermal leptogenesis. In ...

2010

Cosmology versus standard model

I will discuss a proposal for a unified solution of the problems of neutrino masses, dark matter, baryon asymmetry of the Universe and inflation, which does not require introduction of any new energy scale besides already known, namely the electroweak and ...

2010

Observation of Bs0 -> Ds()+ Ds()- using e+e- collisions and a determination of the Bs-Bsbar width difference Delta Gamma_s

Olivier Schneider, Aurelio Bay, Mingkui Wang, Chao Wang, Tagir Aushev, Vladislav Balagura, Jean Wicht, Remi Léandre Albert Louvot, Ji Hyun Kim

We have made the first observation of B-s(0) -> D-s(()()+) D-s(()()-) decays using 23.6 fb(-1) of data recorded by the Belle experiment running on the Y(5S) resonance. The branching fractions are measured to be B(B-s(0) -> Ds+Ds-) = (1.03(-0.32-0.25)(+0. ...

2010

Non-unitary Leptonic Mixing and Leptogenesis

Steve Blanchet

We investigate the relation between non-unitarity of the leptonic mixing matrix and leptogenesis. We discuss how all parameters of the canonical type-I seesaw mechanism can, in principle, be reconstructed from the neutrino mass matrix and the deviation of ...

2009

Probing Resonant Leptogenesis at the LHC

Steve Blanchet

We explore direct collider probes of the resonant leptogenesis mechanism for the origin of matter. We work in the context of theories where the Standard Model is extended to include an additional gauged U(1) symmetry broken at the TeV scale, and where the ...

2009

The role of sterile neutrinos in cosmology and astrophysics

Alexey Boyarsky, Oleg Ruchayskiy

We present a comprehensive overview of an extension of the Standard Model that contains three right-handed (sterile) neutrinos with masses below the electroweak scale [the Neutrino Minimal Standard Model (vMSM)]. We consider the history of the Universe fro ...

Annual Reviews2009

Baryon asymmetry of the universe and neutrinos

Our Universe is charge-asymmetric: it contains no antimatter in amounts comparable to matter. This fact provides cosmological evidence for the nonconservation of baryon number as well as for C and CP breaking. We review the problem of the matter-antimatter ...

2009

Baryogenesis

Iop Publishing Ltd, Dirac House, Temple Back, Bristol Bs1 6Be, England2009

The nuMSM, leptonic asymmetries, and properties of singlet fermions

We study in detail the mechanism of baryon and lepton asymmetry generation in the framework of the νMSM (an extension of the Standard Model by three singlet fermions with masses smaller than the electroweak scale). We elucidate the issue of CP-violation in ...

2008

Viability of Dirac phase leptogenesis

Steve Blanchet

We discuss the conditions for a non-vanishing Dirac phase delta and mixing angle theta(13), sources of CP violation in neutrino oscillations, to be uniquely responsible for the observed matter - antimatter asymmetry of the Universe through leptogenesis. We ...

2008