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Volumn 33, Issue 4, 1986, Pages 1202-1203

Lee-Weinberg bound reexamined

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[No Author keywords available]

Indexed keywords

EID: 0346256453 PISSN: 05562821 EISSN: None Source Type: Journal
DOI: 10.1103/PhysRevD.33.1202 Document Type: Article

Times cited : (76)

References (14)

1
- 84927223784
- In this paper we will only consider stable (lifetime in excess of the age of the Universe) neutrinos, with masses in excess of a few MeV, and with annihilations mediated by the Z bosons of the standard Weinberg-Salam model.

2
- 0011678523
- (1977) Phys. Rev. Lett. , vol.39 , pp. 165
- Lee, B.W.¹ Weinberg, S.²

4
- 0000574137
- Cosmological Constraints on the Mass and the Number of Heavy Lepton Neutrinos
- (1977) Progress of Theoretical Physics , vol.58 , pp. 1775
- Sato, K.¹ Kobayashi, M.²

8
- 0000476398
- This equation holds for Majorana as well as Dirac particles, as discussed by J. Ellis, J. S. Hagelin, D. V. Nanopoulos, K. Olive, and M. Srednicki
- This equation holds for Majorana as well as Dirac particles, as discussed by J. Ellis, J. S. Hagelin, D. V. Nanopoulos, K. Olive, and M. Srednicki, Nucl. Phys. B 238, 453 (1984).
- (1984) Nucl. Phys. B , vol.238 , pp. 453

9
- 84927223783
- The massive neutrinos decouple when Tν=Tgamma; hence, there is only one temperature in the definition of the equilibrium abundance.

12
- 84927223782
- In Eq. (7) we have assumed three light two-component neutrino species, giving s=(2 π3/45)Tγ3[2+ case 7 over case 8 (Tν/Tγ)3times 3 times 2] =7.04 ngamma.

14
- 0000320121
- Steps toward the Hubble constant. VIII - The global value
- This requires H0<= 44~ km sec-1~ Mpc-1, which is within 3 sigma of the value quoted by
- (1982) The Astrophysical Journal , vol.256 , pp. 339
- Sandage, A.¹ Tamman, G.A.²

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