21-26 July 2014
Renold Building
Europe/London timezone
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A solution to the baryon-DM coincidence problem in the mSUGRA/CMSSM model with a 126 GeV Higgs boson

Presented by Mr. Masaki YAMADA on 25 Jul 2014 from 15:10 to 15:30
Type: Particle Cosmology
Track: Particle Cosmology


We have investigated the Affleck-Dine baryogenesis in detail and have shown that the baryon-dark matter coincidence problem can be solved in the mSUGRA/CMSSM model with a 126 GeV Higgs boson. The baryons and dark matter are generated simultaneously through the late-time decay of non-topological solitons, Q-balls, which are formed after the Affleck-Dine baryogenesis. A relation between the universal scalar mass and the unified gaugino mass is required to solve the coincidence problem, marginally depending on the other mSUGRA parameters.


Location: Renold
Room: F14

Primary authors