Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Stringent Constraints on Cosmological Neutrino Antineutrino Asymmetries from Synchronized Flavor Transformation

Journal Article · · Phys.Rev.D
We assess a mechanism which can transform neutrino-antineutrino asymmetries between flavors in the early universe, and confirm that such transformation is unavoidable in the near bi-maximal framework emerging for the neutrino mixing matrix. We show that the process is a standard Mikheyev-Smirnov-Wolfenstein flavor transformation dictated by a synchronization of momentum states. We also show that flavor ``equilibration'' is a special feature of maximal mixing, and carefully examine new constraints placed on neutrino asymmetries. In particular, the big bang nucleosynthesis limit on electron neutrino degeneracy $$|\xi_e|\lesssim 0.04$$ does not apply directly to all flavors, yet confirmation of the large-mixing-angle solution to the solar neutrino problem will eliminate the possibility of degenerate big bang nucleosynthesis.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1874320
Report Number(s):
FERMILAB-PUB-02-056-A; arXiv:astro-ph/0203442; oai:inspirehep.net:584488
Journal Information:
Phys.Rev.D, Journal Name: Phys.Rev.D Vol. 66
Country of Publication:
United States
Language:
English

References (56)

Neutrino oscillations in dense neutrino gases journal August 1993
Big-bang nucleosynthesis enters the precision era journal January 1998
Constraints on neutrino degeneracy from the cosmic microwave background and primordial nucleosynthesis journal May 2002
Cosmological constraints on neutrino degeneracy journal March 1992
Stability of incoherence in an isotropic gas of oscillating neutrinos journal August 1998
Neutrino oscillations and the leptonic charge of the universe journal February 1991
Constraints on Neutrino Oscillations Using 1258 Days of Super-Kamiokande Solar Neutrino Data journal June 2001
Synchronisation and MSW sharpening of neutrinos propagating in a flavour blind medium journal February 2001
Large neutrino asymmetries from neutrino oscillations journal May 1996
MiniBooNE: Status of the booster neutrino experiment journal January 2001
Oscillating neutrinos in the early Universe journal March 1994
Precision Detection of the Cosmic Neutrino Background journal May 1999
Bimodal coherence in dense self-interacting neutrino gases journal May 1996
General kinetic description of relativistic mixed neutrinos journal September 1993
Constraints on neutrino mixing journal December 1999
Treatment of neutrino oscillations in a thermal environment journal October 1987
Measurement of the Rate of ν e + d → p + p + e − Interactions Produced by B 8 Solar Neutrinos at the Sudbury Neutrino Observatory journal July 2001
Primordial nucleosynthesis with CMB inputs: probing the early universe and light element astrophysics journal April 2002
Update on neutrino mixing in the early universe journal January 2002
KamLAND: A reactor neutrino experiment testing the solar neutrino anomaly journal January 2001
Multiple Peaks in the Angular Power Spectrum of the Cosmic Microwave Background: Significance and Consequences for Cosmology journal January 2002
Evidence for neutrino oscillations from the observation of ν ¯ e appearance in a ν ¯ μ beam journal November 2001
Evidence for Oscillation of Atmospheric Neutrinos journal August 1998
Relic neutrino asymmetries and big bang nucleosynthesis in a four neutrino model journal October 1998
Neutrono dispersion at finite temperature and density journal October 1988
Tau Neutrinos Favored over Sterile Neutrinos in Atmospheric Muon Neutrino Oscillations journal November 2000
Increase in the primordial 4 He yield in the two-doublet four-neutrino mixing scheme journal September 2000
Cosmological bounds on neutrino degeneracy improved by flavor oscillations journal June 2002
GNO solar neutrino observations: results for GNO I journal September 2000
High-energy neutrino conversion and the lepton asymmetry in the universe journal September 2001
Largest temperature of the radiation era and its cosmological implications journal June 2001
New Constraints on Neutrino Physics from BOOMERANG Data journal November 2000
Four-neutrino mixing and long-baseline experiments journal January 2000
Measurement of the Solar Electron Neutrino Flux with the Homestake Chlorine Detector journal March 1998
Final results from the Palo Verde neutrino oscillation experiment journal November 2001
Self-maintained coherent oscillations in dense neutrino gases journal July 1995
Physics of synchronized neutrino oscillations caused by self-interactions journal February 2002
Neutrino oscillations at high densities journal August 1992
A new mechanism for baryogenesis journal January 1985
Uncertainties in 4He abundance determinations in extragalactic H II regions journal May 2001
Sterile neutrinos and supernova nucleosynthesis journal May 2000
Generation of large lepton asymmetries journal January 1999
Cosmological Constraints on Late-time Entropy Production journal May 1999
The 2dF Galaxy Redshift Survey: the power spectrum and the matter content of the Universe journal November 2001
Limits on neutrino oscillations from the CHOOZ experiment journal November 1999
Solar B 8 and hep Neutrino Measurements from 1258 Days of Super-Kamiokande Data journal June 2001
New CMBR data and the cosmic neutrino background journal September 2001
Measuring the Cosmological Lepton Asymmetry through the Cosmic Microwave Background Anisotropy journal October 1999
Analytical treatment of neutrino asymmetry equilibration from flavor oscillations in the early universe journal July 2002
Cosmological Parameter Extraction from the First Season of Observations with the Degree Angular Scale Interferometer journal March 2002
Constraining neutrino physics with big bang nucleosynthesis and cosmic microwave background radiation journal December 2001
The standard and degenerate primordial nucleosynthesis versus recent experimental data journal September 2000
Measurement of the solar neutrino capture rate with gallium metal journal October 1999
GALLEX solar neutrino observations: results for GALLEX IV journal February 1999
Finite-temperature corrections to the effective potential of neutrinos in a medium journal August 1992
How does the cosmic microwave background plus big bang nucleosynthesis constrain new physics? journal November 2001

Similar Records

Cosmological lepton asymmetry, primordial nucleosynthesis and sterile neutrinos
Journal Article · Thu Sep 15 00:00:00 EDT 2005 · Physical Review. D, Particles Fields · OSTI ID:20713515

Relic Density of Neutrinos with Primordial Asymmetries
Journal Article · Fri Jun 19 00:00:00 EDT 2009 · Physical Review Letters · OSTI ID:21346965

Simultaneous flavor transformation of neutrinos and antineutrinos with dominant potentials from neutrino-neutrino forward scattering
Journal Article · Sat Jan 14 23:00:00 EST 2006 · Physical Review. D, Particles Fields · OSTI ID:20795687