期刊
PHYSICAL REVIEW LETTERS
卷 110, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.241301
关键词
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资金
- National Science Foundation [PHY-0969020]
- Robert A. Welch Foundation [F-0014]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969020] Funding Source: National Science Foundation
It is suggested that Goldstone bosons may be masquerading as fractional cosmic neutrinos, contributing about 0.39 to what is reported as the effective number of neutrino types in the era before recombination. The broken symmetry associated with these Goldstone bosons is further speculated to be the conservation of the particles of dark matter.
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