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We study the nucleosynthesis in a core-collapse supernova model including newly calculated neutrino-induced reaction rates with both collective and Mikheyev-Smirnov-Wolfenstein (MSW) neutrino-flavor oscillations considered. We show that the…

Light element synthesis in supernovae through neutrino-nucleus interactions, i.e., the nu-process, is affected by neutrino oscillations in the supernova environment. There is a resonance of 13-mixing in the O/C layer, which increases the…

Astrophysics · Physics 2007-05-23 T. Yoshida , T. Kajino , H. Yokomakura , K. Kimura , A. Takamura , D. H. Hartmann

Neutrino oscillations affect light element synthesis through the neutrino-process in supernova explosions. The 7Li and 11B yields produced in a supernova explosion of a 16.2 solar-mass star model increase by factors of 1.9 and 1.3 in the…

Astrophysics · Physics 2008-11-26 T. Yoshida , T. Kajino , H. Yokomakura , K. Kimura , A. Takamura , D. H. Hartmann

We investigate the feasibility of probing the neutrino mass hierarchy and the mixing angle $\phi_{13}$ with the neutrino burst from a future supernova. An inverse power-law density $\rho \sim r^{n} $ with varying $n$ is adopted in the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Shao-Hsuan Chiu , T. K. Kuo

The neutrino process ($\nu$-process) for the production of 7Li and 11B in core-collapse supernovae (SNe) is extensively investigated. Initial abundances of s-nuclei and other physical conditions are derived from an updated calculation of…

A new type of neutrino mixing named bi-pair neutrino mixing is proposed to describe the current neutrino mixing pattern with a vanishing reactor mixing angle and is determined by a mixing matrix with two pairs of identical magnitudes of…

High Energy Physics - Phenomenology · Physics 2011-02-11 Teruyuki Kitabayashi , Masaki Yasue

The only experimentally observed phenomenon that lies outside the standard model of the electroweak interaction is neutrino oscillations. A way to try to unify the extensive neutrino oscillation data is to add a phenomenological mass term…

Nuclear Theory · Physics 2017-08-23 D. J. Ernst , B. K. Cogswell , H. R. Burroughs , J. Escamilla-Roa , D. C. Latimer

The neutrino mass hierarchy is one of the neutrino fundamental properties yet to be determined. We introduce a method to determine neutrino mass hierarchy by comparing the interaction rate of neutral current (NC) interactions,…

High Energy Physics - Phenomenology · Physics 2016-07-27 Kwang-Chang Lai , Fei-Fan Lee , Feng-Shiuh Lee , Guey-Lin Lin , Tsung-Che Liu , Yi Yang

We reinvestigate effects of neutrino oscillations on the production of 7Li and 11B in core-collapse supernovae (SNe). During the propagation of neutrinos from the proto-neutron star, their flavors change and the neutrino reaction rates for…

A neutrino-oscillation analysis is performed of the more finely binned Super-K atmospheric, MINOS, and CHOOZ data in order to examine the impact of neutrino hierarchy in this data set upon the value of $\theta_{13}$ and the deviation of…

Nuclear Theory · Physics 2011-06-21 J. Escamilla-Roa , D. C. Latimer , D. J. Ernst

We study the effects of neutrino oscillation on supernova neutrino in the case of the inverted mass hierarchy ($m_{3} \ll m_{1} < m_{2}$) as well as the normal mass hierarchy ($m_{1} < m_{2} \ll m_{3}$). Numerical analysis using a realistic…

High Energy Physics - Phenomenology · Physics 2009-11-07 K. Takahashi , K. Sato

The neutrino mass hierarchy, i.e., whether the $\nu_3$ neutrino mass eigenstate is heavier or lighter than the $\nu_1$ and $\nu_2$ mass eigenstates, is one of the remaining undetermined fundamental features of the neutrino Standard Model.…

High Energy Physics - Experiment · Physics 2015-07-01 X. Qian , P. Vogel

Proposed medium-baseline reactor neutrino experiments offer unprecedented opportunities to probe, at the same time, the mass-mixing parameters which govern $\nu_e$ oscillations both at short wavelength (delta m^2 and theta_{12}) and at long…

High Energy Physics - Phenomenology · Physics 2014-01-15 F. Capozzi , E. Lisi , A. Marrone

Collective neutrino flavor transformations deep inside a supernova are sensitive to the neutrino mass hierarchy even at extremely small values of theta(13). Exploiting this effect, we show that comparison of the antineutrino signals from a…

High Energy Physics - Phenomenology · Physics 2008-11-26 Basudeb Dasgupta , Amol Dighe , Alessandro Mirizzi

We calculate the abundances of $^{7}$Li, $^{11}$B, $^{92}$Nb, $^{98}$Tc, $^{138}$La, and $^{180}$Ta produced by neutrino $(\nu)$ induced reactions in a core-collapse supernova explosion. We consider the modification by $\nu$…

We discuss the effects of neutrino mixing and the neutrino mass hierarchy when considering the capture of the cosmic neutrino background (CNB) on radioactive nuclei. The implications of mixing and hierarchy at future generations of tritium…

Astrophysics · Physics 2008-11-26 Mattias Blennow

Neutrino masses and mixings are analyzed in terms of left-handed fields and a 6x6 complex symmetric mass matrix whose singular values are the neutrino masses. An angle x_nu characterizes the kind of the neutrinos, with x_nu = 0 for Dirac…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kevin Cahill

Neutrino nonstandard interactions (NSI) were investigated earlier in the solar case and were shown to reduce the tensions between the data and the large mixing angle solution predictions. We extend the previous framework to the supernova…

High Energy Physics - Phenomenology · Physics 2013-05-29 C. R. Das , Joao Pulido

We consider in details the effects of the 13-mixing (sin^2 theta_{13}) and of the type of mass hierarchy/ordering (sign[ Delta m^2_{13}]) on neutrino signals from the gravitational collapses of stars. The observables (characteristics of the…

High Energy Physics - Phenomenology · Physics 2009-11-10 C. Lunardini , A. Yu. Smirnov

Best-fit values of recent global analyzes of neutrino data imply large solar neutrino mixing, vanishing U_{e3} and a non-maximal atmospheric neutrino mixing angle theta_{23}. We show that these values emerge naturally by the hypothesis of…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Blum , R. N. Mohapatra , W. Rodejohann
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