English
Related papers

Related papers: On the Observability of Collective Flavor Oscillat…

200 papers

Collective flavor oscillations driven by neutrino-neutrino self interaction inside core-collapse supernovae have now been shown to bring drastic changes in the resultant neutrino fluxes. This would in turn significantly affect the diffuse…

High Energy Physics - Phenomenology · Physics 2009-05-29 Sovan Chakraborty , Sandhya Choubey , Basudeb Dasgupta , Kamales Kar

Neutrino-neutrino interactions inside core-collapse supernovae may give rise to collective flavor oscillations resulting in swap between flavors. These oscillations depend on the initial energy spectra, and relative fluxes or relative…

High Energy Physics - Phenomenology · Physics 2014-11-20 Sovan Chakraborty , Sandhya Choubey , Srubabati Goswami , Kamales Kar

We calculate the expected galactic supernova neutrino signal at large next-generation underground detectors. At different epochs after the explosion, the primary fluxes can be quite different. For these primary neutrino fluxes, spectral…

High Energy Physics - Phenomenology · Physics 2010-08-03 Sandhya Choubey , Basudeb Dasgupta , Amol Dighe , Alessandro Mirizzi

Neutrino and antineutrino fluxes from a core-collapse galactic supernova are studied, within a representative three-flavor scenario with inverted mass hierarchy and tiny 1-3 mixing. The initial flavor evolution is dominated by collective…

High Energy Physics - Phenomenology · Physics 2010-04-23 Gianluigi Fogli , Eligio Lisi , Antonio Marrone , Irene Tamborra

Non-linear effects on supernova neutrino oscillations, associated with neutrino self-interactions, are known to induce collective flavor transitions near the supernova core for theta_13 \neq 0. In scenarios with very shallow electron…

High Energy Physics - Phenomenology · Physics 2009-10-07 G. L. Fogli , E. Lisi , A. Marrone , A. Mirizzi

Observing a high-statistics neutrino signal from a galactic supernova (SN) would allow one to test the standard delayed explosion scenario and may allow one to distinguish between the normal and inverted neutrino mass ordering due to the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Georg G. Raffelt

We estimate the diffuse supernova neutrino background (DSNB) using the recent progenitor-dependent, long-term supernova simulations from the Basel group and including neutrino oscillations at several post-bounce times. Assuming multi-angle…

Solar and Stellar Astrophysics · Physics 2015-06-05 Cecilia Lunardini , Irene Tamborra

Although Galactic core-collapse supernovae (SNe) only happen a few times per century, every hour a vast number of explosions happen in the whole universe, emitting energy in the form of neutrinos, resulting in the diffuse supernova neutrino…

High Energy Physics - Phenomenology · Physics 2021-05-20 Zahra Tabrizi , Shunsaku Horiuchi

Neutrinos emitted deep within a supernova explosion experience a self-induced index of refraction. In the stationary, one-dimensional (1D) supernova "bulb model", this self-induced refraction can lead to a collective flavor transformation…

High Energy Physics - Phenomenology · Physics 2020-01-17 Joshua D. Martin , J. Carlson , Huaiyu Duan

The relic neutrinos from old supernova explosions are among the most ancient neutrino fluxes within experimental reach. Thus, the diffuse supernova neutrino background (DSNB) could teach us if neutrino masses were different in the past…

High Energy Physics - Phenomenology · Physics 2022-12-07 André de Gouvêa , Ivan Martinez-Soler , Yuber F. Perez-Gonzalez , Manibrata Sen

It was recently realized that three-flavor effects could peculiarly modify the development of spectral splits induced by collective oscillations, for supernova neutrinos emitted during the cooling phase of a protoneutron star. We…

High Energy Physics - Phenomenology · Physics 2014-11-20 Basudeb Dasgupta , Alessandro Mirizzi , Irene Tamborra , Ricard Tomas

The undetermined neutrino mass hierarchy may leave an observable imprint on the neutrino fluxes from a core-collapse supernova (SN). The interpretation of the observables, however, is subject to the uncertain SN models and the flavor…

High Energy Physics - Phenomenology · Physics 2015-06-18 S. H. Chiu , Chu-Ching Huang , Kwang-Chang Lai

We study the flavor-dependent neutrino spectra formation in the core of a supernova (SN) by means of Monte Carlo simulations. A high-statistics neutrino signal from a galactic SN may contain information that severely constrains the…

Astrophysics · Physics 2009-09-29 Mathias Th. Keil

A dense neutrino medium such as that inside a core-collapse supernova can experience collective flavor conversion or oscillations because of the neutral-current weak interaction among the neutrinos. This phenomenon has been studied in a…

High Energy Astrophysical Phenomena · Physics 2015-10-20 Sajad Abbar , Huaiyu Duan

Neutrinos in supernovae, neutron stars, and in the early Universe may change flavor collectively and unstably, due to neutrino-neutrino forward-scattering. We prove that for collective instability to occur, the difference of momentum…

High Energy Physics - Phenomenology · Physics 2022-03-09 Basudeb Dasgupta

Collective oscillations of supernova neutrinos above the neutrino sphere can be completely described by the propagation of individual neutrinos in external potentials and are in this sense a linear phenomenon. An effective theory of…

High Energy Physics - Phenomenology · Physics 2018-05-02 Rasmus S. L. Hansen , Alexei Yu. Smirnov

The usual description of self-induced flavor conversions for neutrinos (\nu's) in supernovae is based on the simplified assumption that all the \nu's of the different species are emitted "half-isotropically" by a common neutrinosphere, in…

High Energy Physics - Phenomenology · Physics 2013-05-30 Alessandro Mirizzi , Pasquale D. Serpico

We investigate the collective neutrino oscillations under the three flavor multi-angle approximation in a spherically symmetric simulation of failed supernovae. A failed supernova emits high neutrino fluxes in a short time, while intense…

High Energy Astrophysical Phenomena · Physics 2018-12-19 Masamichi Zaizen , Takashi Yoshida , Kohsuke Sumiyoshi , Hideyuki Umeda

Oscillations of neutrino emerging from a supernova core are studied. In this extremely high density region neutrino self interactions induce collective flavor transitions. When collective transitions are decoupled from matter oscillations,…

High Energy Physics - Phenomenology · Physics 2008-05-19 Gianluigi Fogli , Eligio Lisi , Antonio Marrone , Alessandro Mirizzi

We all know that in the dense anisotropic interior of the star, neutrino-neutrino forward-scattering can lead to fast collective neutrino oscillations, which has striking consequences on flavor dependent neutrino emission and can be crucial…

High Energy Physics - Phenomenology · Physics 2021-01-06 Soumya Bhattacharyya
‹ Prev 1 2 3 10 Next ›