Possibility of bottom-catalyzed matter genesis near to primordial QGP hadronization

Abstract

We study bottom flavor abundance in the early Universe near to a temperature $T_{\mathrm{H}}\simeq 150\mathrm{MeV}$, the condition for hadronization of deconfined quark-gluon plasma (QGP). We show bottom flavor abundance nonequilibrium lasting microseconds. In our study we use that in both QGP, and the hadronic gas phase (HG) $b$ and $\bar{b}$ quarks near $T_{\mathrm{H}}$ are bound in B-mesons and antimesons subject to $CP$ violating weak decays. A coincident non-equilibrium abundance of bottom flavor can lead to matter genesis at required strength: a) The specific thermal yield per entropy is $n_b^{th}/\sigma =10^{-10}\sim 10^{-13}$. b) Considering time scales, millions of cycles of B-meson decays, and $b\bar{b}$-pair recreation processes occur.

arXiv comment7 pages, 4 figures

References in corpus (16)

• The effects of topological charge change in heavy ion collisions: "Event by event P and CP violation"
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Towards a complete theory of thermal leptogenesis in the SM and MSSM
• Electroweak baryogenesis
• Recent Progress in Baryogenesis
• GUT Baryogenesis after Preheating
• Heavy quarkonium suppression in a fireball
• What happens to the Upsilon and eta_b in the quark-gluon plasma? Bottomonium spectral functions from lattice QCD
• Color screening in (2+1)-flavor QCD
• Observation of several sources of $CP$ violation in $B^{+}\to {\pi }^{+}{\pi }^{+}{\pi }^{-}$ decays
• Approach to equilibrium of quarkonium in quark-gluon plasma
• B_c Meson Production in Nuclear Collisions at RHIC
• Discovery of Quark-Gluon-Plasma: Strangeness Diaries
• Pion and muon production in electron-positron photon plasma
• Relic neutrinos: Physically consistent treatment of effective number of neutrinos and neutrino mass
• Boltzmann Equation Solver Adapted to Emergent Chemical Non-equilibrium

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• Cosmological Strangeness Abundance
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