Do neutrino flavor oscillations forbid large lepton asymmetry of the universe?

A. D. Dolgov; Fuminobu Takahashi

doi:10.1016/j.nuclphysb.2004.04.002

Do neutrino flavor oscillations forbid large lepton asymmetry of the universe?

A. D. Dolgov, Fuminobu Takahashi

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

It is shown that hypothetical neutrino-majoron coupling can suppress neutrino flavor oscillations in the early universe, in contrast to the usual weak interaction case. This reopens a window for a noticeable cosmological lepton asymmetry which is forbidden for the large mixing angle solution in the case of standard interactions of neutrinos.

Original language	English
Pages (from-to)	189-213
Number of pages	25
Journal	Nuclear Physics B
Volume	688
Issue number	1-2
DOIs	https://doi.org/10.1016/j.nuclphysb.2004.04.002
Publication status	Published - 2004 Jun 7
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.nuclphysb.2004.04.002

Cite this

@article{623983954dfd4ef2b2bbb3a7fe188128,

title = "Do neutrino flavor oscillations forbid large lepton asymmetry of the universe?",

abstract = "It is shown that hypothetical neutrino-majoron coupling can suppress neutrino flavor oscillations in the early universe, in contrast to the usual weak interaction case. This reopens a window for a noticeable cosmological lepton asymmetry which is forbidden for the large mixing angle solution in the case of standard interactions of neutrinos.",

author = "Dolgov, {A. D.} and Fuminobu Takahashi",

note = "Funding Information: A.D. is grateful to the Research Center for the Early Universe of the University of Tokyo for the hospitality during the time when this work started. F.T. is grateful to M. Kawasaki and K. Ichikawa for useful discussions. F.T. would like to thank the Japan Society for the Promotion of Science for financial support. ",

year = "2004",

month = jun,

day = "7",

doi = "10.1016/j.nuclphysb.2004.04.002",

language = "English",

volume = "688",

pages = "189--213",

journal = "Nuclear Physics B",

issn = "0550-3213",