Neutrino dynamics below the electroweak crossover

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Baryogenesis Below The Electroweak Scale

We propose a new alternative for baryogenesis which resolves a number of the problems associated with GUT and electroweak scenarios, and which may allow baryogenesis even in modest extensions of the standard model. If the universe never reheats above the electroweak scale following inflation, GUT baryon production does not occur and at the same time thermal sphalerons, gravitinos and monopoles ...

متن کامل

Making Baryons Below the Electroweak Scale

I describe a new way for baryogenesis to proceed, which evades many of the problems of GUT and electroweak scenarios. If the reheat temperature after inflation is below the electroweak scale, neither GUT baryon production nor traditional electroweak baryogenesis can occur. However, non-thermal production of sphaleron configurations via preheating could generate the observed baryon asymmetry of ...

متن کامل

Electroweak Phase Transition and Neutrino Masses *

The presently observed cosmological baryon asymmetry has been finally determined at the time of the electroweak phase transition, when baryon and lepton number violating interactions fell out of thermal equilibrium. We discuss the thermodynamics of the phase transition based on the free energy of the SU(2) Higgs model at finite temperature, which has been studied in perturbation theory and latt...

متن کامل

Electroweak baryogenesis from late neutrino masses.

Electroweak baryogenesis, given a first-order phase transition, does not work in the standard model because the quark Yukawa matrices are too hierarchical. On the other hand, the neutrino mass matrix is apparently not hierarchical. In models with neutrino mass generation at low scales, the neutrino Yukawa couplings lead to large CP violation in the reflection probability of heavy leptons by the...

متن کامل

Z–Vortex Percolation in the Electroweak Crossover Region

We study the percolation properties of embedded topological defects, Z–vortices, and the occurrence of the corresponding Nambu monopoles in the electroweak theory for a Higgs mass MH ≈ 100 GeV, near to the crossover temperature. Although there is no phase transition anymore at such strong selfcoupling, we observe that the Z–vortices still exhibit a percolation transition that has been found rec...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Cosmology and Astroparticle Physics

سال: 2016

ISSN: 1475-7516

DOI: 10.1088/1475-7516/2016/07/015