A Mechanism of Generating Isothermal Perturbation by a Strong {CP} Violation

Yoshimura, M.

doi:10.1103/PhysRevLett.51.439

A Mechanism of Generating Isothermal Perturbation by a Strong {CP} Violation

M. Yoshimura
(
- KEK, Tsukuba
)

Mar, 1983

11 pages

Published in:

Phys.Rev.Lett. 51 (1983) 439

DOI:

10.1103/PhysRevLett.51.439

Report number:

KEK-TH-62

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Abstract: (APS)

A large-scale inhomogeneity of coherent axion field may exist in the early universe. This gives a spatially varying source of strong CP nonconservation and, when coupled to baryon-nonconserving interaction, may lead to generation of the isothermal perturbation of baryon density. A specific mechanism is presented, in which three-body decay of a heavy Majorana lepton gives the additional baryon generation.

COSMOLOGICAL MODEL
GRAND UNIFIED THEORY: SU(5)
POSTULATED PARTICLE: AXION
CP: violation
BARYON NUMBER: VIOLATION
BARYON: DENSITY
HEAVY LEPTON: MAJORANA
HEAVY LEPTON: DECAY
DECAY: HEAVY LEPTON
BARYON: PRODUCTION

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