Publications (27)
nuMSM--Predictions for Neutrinoless Double Beta Decay
F. Bezrukov
We give the prediction on the effective Majorana mass for neutrinoless double decay in a simple extension of the Standard Model (nuMSM). The model adds three right-handed neut…
Light Sterile Neutrinos: A White Paper
K. N. Abazajian, M. A. Acero, S. K. Agarwalla +184
This white paper addresses the hypothesis of light sterile neutrinos based on recent anomalies observed in neutrino experiments and the latest astrophysical data.
Suppression of baryon number violation in electroweak collisions: Numerical results
F. Bezrukov, D. Levkov, C. Rebbi +2
We present a semiclassical study of the suppression of topology changing, baryon number violating transitions induced by particle collisions in the electroweak theory. We find that…
Uncertainties of hadronic scalar decay calculations
F. Bezrukov, D. Gorbunov, I. Timiryasov
Dispersion relations---a corollary of unitarity and analyticity---are among the few methods which can be employed to study low energy processes in QCD. In this work we critically r…
Late and early time phenomenology of Higgs-dependent cutoff
F. Bezrukov, D. Gorbunov, M. Shaposhnikov
The analysis of theories with non-minimal coupling of Higgs field to gravity revealed that they enter into strong coupling regime above certain Higgs-dependent cutoff, which may be…
On initial conditions for the Hot Big Bang
F. Bezrukov, D. Gorbunov, M. Shaposhnikov
We analyse the process of reheating the Universe in the electroweak theory where the Higgs field plays a role of the inflaton. We estimate the maximal temperature of the Universe a…
Hiding an elephant: heavy sterile neutrino with large mixing angle does not contradict cosmology
F. Bezrukov, A. Chudaykin, D. Gorbunov
We study a model of a keV-scale sterile neutrino with a relatively large mixing with the Standard Model sector. Usual considerations predict active generation of such particles in…
Use of singular classical solutions for calculation of multiparticle cross sections in field theory
F. Bezrukov
A method of reducing the problem of the calculation of tree multiparticle cross sections in theory to the solution of a singular classical Euclidean boundary value problem i…
Semiclassical Study of Baryon and Lepton Number Violation in High-Energy Electroweak Collisions
F. Bezrukov, D. Levkov, C. Rebbi +2
We make use of a semiclassical method for calculating the suppression exponent for topology changing transitions in high-energy electroweak collisions. In the Standard Model these…
Leptogenesis in models with keV sterile neutrino dark matter
F. Bezrukov, A. Kartavtsev, M. Lindner
We analyze leptogenesis in gauge extensions of the Standard Model with keV sterile neutrino dark matter. We find that both the observed dark matter abundance and the correct baryon…
Standard Model Higgs boson mass from inflation: two loop analysis
F. Bezrukov, M. Shaposhnikov
We extend the analysis of \cite{Bezrukov:2008ej} of the Standard Model Higgs inflation accounting for two-loop radiative corrections to the effective potential. As was expected, hi…
Theta--instantons in SU(2) Higgs theory
F. Bezrukov, D. Levkov
We consider topology changing processes in SU(2)--Higgs theory. In the Standard Model of particle physics they are accompanied by baryon--and lepton--number non--conservation. At f…
T-odd Correlations in pi->e nu_e gamma Decay
F. Bezrukov, D. Gorbunov
The transverse lepton polarization asymmetry in pi_e2gamma decay may probe T-violating interactions beyond the Standard Model. Dalitz plot distributions of the expected effects are…
Light inflaton after LHC8 and WMAP9 results
F. Bezrukov, D. Gorbunov
We update the allowed parameter space of the simple chaotic inflationary model with quartic potential and light inflaton [Bezrukov,Gorbunov'2009] taking into account recent results…
Instanton-Like Processes in Particle Collisions: a Numerical Study of the SU(2)-Higgs Theory below the Sphaleron Energy
F. Bezrukov, C. Rebbi, V. Rubakov +1
We use semiclassical methods to calculate the probability of inducing a change of topology via a high-energy collision in the SU(2)-Higgs theory. This probability is determined by…
A White Paper on keV Sterile Neutrino Dark Matter
R. Adhikari, M. Agostini, N. Anh Ky +133
We present a comprehensive review of keV-scale sterile neutrino Dark Matter, collecting views and insights from all disciplines involved - cosmology, astrophysics, nuclear, and par…
Relic Gravity Waves and 7 keV Dark Matter from a GeV scale inflaton
F. Bezrukov, D. Gorbunov
We study the mechanism of generation of 7 keV sterile neutrino Dark Matter (DM) in the model with light inflaton , which serves as a messenger of scale invariance breaking. In…
Light inflaton Hunter's Guide
F. Bezrukov, D. Gorbunov
We study the phenomenology of a realistic version of the chaotic inflationary model, which can be fully and directly explored in particle physics experiments. The inflaton mixes wi…
T-Odd Correlations in pi->e nu_e gamma and pi->mu nu_mu gamma Decays
F. Bezrukov, D. Gorbunov
The transverse lepton polarization asymmetry in pi_l2gamma decays may probe T-violating interactions beyond the Standard Model. Dalitz plot distributions of the expected effects ar…
keV sterile neutrino dark matter in gauge extensions of the standard model
F. Bezrukov, H. Hettmansperger, M. Lindner
It is known that a keV scale sterile neutrino is a good warm dark matter candidate. We study how this possibility could be realized in the context of gauge extensions of the standa…
Higgs inflation: consistency and generalisations
F. Bezrukov, A. Magnin, M. Shaposhnikov +1
We analyse the self-consistency of inflation in the Standard Model, where the Higgs field has a large non-minimal coupling to gravity. We determine the domain of energies in which…
Induced resonance makes light sterile neutrino Dark Matter cool
F. Bezrukov, A. Chudaykin, D. Gorbunov
We describe two new generation mechanisms for Dark Matter composed of sterile neutrinos with keV mass. The model contains a light scalar field which coherently oscill…
Transmission through a potential barrier in quantum mechanics of multiple degrees of freedom: complex way to the top
F. Bezrukov, D. Levkov
A semiclassical method for the calculation of tunneling exponent in systems with many degrees of freedom is developed. We find that corresponding classical solution as function of…
Scalar induced resonant sterile neutrino production in the early Universe
F. Bezrukov, A. Chudaykin, D. Gorbunov
It has been recently suggested \cite{Bezrukov:2017ike,Bezrukov:2018wvd} that a cosmic scalar field can completely change the keV-scale sterile neutrino production in the early Univ…
nuMSM and its experimental tests
F. Bezrukov
MSM is a minimal renormalizable extension of the Standard Model by right handed neutrinos. This model explains the neutrino oscillations and provides a candidate for the Dark M…
Can an odd number of fermions be created due to chiral anomaly?
F. Bezrukov, Y. Burnier, M. Shaposhnikov
We describe a possibility of creation of an odd number of fractionally charged fermions in 1+1 dimensional Abelian Higgs model. We point out that for 1+1 dimensions this process do…
Dynamical tunneling of bound systems through a potential barrier: complex way to the top
F. Bezrukov, D. Levkov
A semiclassical method of complex trajectories for the calculation of the tunneling exponent in systems with many degrees of freedom is further developed. It is supplemented with a…