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APS Neutrino Study: Report of the Neutrino Astrophysics and Cosmology Working Group
Steve W. Barwick, John F. Beacom, Vince Cianciolo +11
In 2002, Ray Davis and Masatoshi Koshiba were awarded the Nobel Prize in Physics ``for pioneering contributions to astrophysics, in particular for the detection of cosmic neutrinos…
Primordial black holes, phase transitions, and the fate of the universe
Mitesh Patel, George M. Fuller
Phase transitions in the early universe are prime settings for the production of primordial black holes, since they can break the relatively quiescent homogeneity and isotropy of F…
Transformation-Induced Nonthermal Neutrino Spectra and Primordial Nucleosynthesis
Kevork Abazajian, Xiangdong Shi, George M. Fuller
We examine in detail the changes in the production of primordial helium resulting from nonthermal neutrino momentum distributions produced by resonant transformation of electron-ty…
Comments Regarding "On Neutrino-Mixing-Generated Lepton Asymmetry and the Primordial Helium-4 Abundance"
Xiangdong Shi, George M. Fuller, Kevork Abazajian
This is a reply to the preprint "On Neutrino-Mixing-Generated Lepton Asymmetry and the Primordial Helium-4 Abundance" by M. V. Chizhov and D. P. Kirilova (hep-ph/9908525), which cr…
Active-Sterile Neutrino Mixing in the Early Universe and Primordial Nucleosynthesis
Kevork Abazajian, Xiangdong Shi, George M. Fuller
We investigate the effects of matter-enhanced (MSW) transformation of neutrinos in the Early Universe on the primordial helium yield (Y_p). We find that Y_p is affected much more b…
Geometric Solutions for the Neutrino Oscillation Length Resonance
Jason Pruet, George M. Fuller
We give a geometric interpretation of the neutrino 'oscillation length resonance' recently discovered by Petcov. We use this picture to identify two new solutions for oscillation l…