Cosmological amount of baryons

Tsutomu Yanagida, Motohiko Yoshimura

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The grand unified SU(5) model is analyzed as to whether it can give a sizable, cosmological baryon asymmetry consistent with the observation, NB/Nγ = O(10-8-10-10). Assuming a recently suggested decay mechanism of the heavy X-boson, we find that a numerical agreement is possible only if the minimal Higgs system is extended to allow a general class of CP violation and if interesting constraints on parameters of the SU(5) model are satisfied.

Original languageEnglish
Pages (from-to)534-548
Number of pages15
JournalNuclear Physics, Section B
Volume168
Issue number3-4
DOIs
Publication statusPublished - 1980
Externally publishedYes

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baryons
CP violation
bosons
asymmetry
decay

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Cosmological amount of baryons. / Yanagida, Tsutomu; Yoshimura, Motohiko.

In: Nuclear Physics, Section B, Vol. 168, No. 3-4, 1980, p. 534-548.

Research output: Contribution to journalArticle

Yanagida, Tsutomu ; Yoshimura, Motohiko. / Cosmological amount of baryons. In: Nuclear Physics, Section B. 1980 ; Vol. 168, No. 3-4. pp. 534-548.
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