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Related papers: Supernova Simulations Confront SN 1987A Neutrinos

200 papers

We propose an explanation of the LSND signal via quantum-decoherence of the mass states, which leads to damping of the interference terms in the oscillation probabilities. The decoherence parameters as well as their energy dependence are…

High Energy Physics - Phenomenology · Physics 2008-11-26 Yasaman Farzan , Thomas Schwetz , Alexei Yu Smirnov

We propose signals in the cosmic microwave background to probe the type and spectrum of neutrino masses. In theories that have spontaneous breaking of approximate lepton flavor symmetries at or below the weak scale, light pseudo-Goldstone…

High Energy Physics - Phenomenology · Physics 2009-11-10 Z. Chacko , Lawrence J. Hall , Takemichi Okui , Steven J. Oliver

(abridged) We study the low energy events observed by Kamiokande-II. We focus on the event 6 of 6.3 MeV and also on the other events that at 1 sigma fall below the energy threshold: events 3,4,10,12. The volume distribution is not a uniform…

Astrophysics · Physics 2010-10-27 Maria Laura Costantini , Aldo Ianni , Giulia Pagliaroli , Francesco Vissani

We investigate neutrino non-radiative two-body decay in vacuum, in relation to SN1987A. In a full $3\nu$ decay framework, we perform a detailed likelihood analysis of the 24 neutrino events from SN1987A observed by Kamiokande-II, IMB, and…

High Energy Physics - Phenomenology · Physics 2023-11-06 Pilar Iváñez-Ballesteros , M. Cristina Volpe

We present the first successful simulation of a neutrino-driven supernova explosion in three dimensions (3D), using the Prometheus-Vertex code with an axis-free Yin-Yang grid and a sophisticated treatment of three-flavor, energy-dependent…

Solar and Stellar Astrophysics · Physics 2015-05-01 Tobias Melson , Hans-Thomas Janka , Andreas Marek

We suggest mass matrices for neutrinos and charged leptons that can explain solar and atmospheric neutrino data. The resulting flavor mixing matrix $V_{\nu}$ has a property that $(V_{\nu})_{13}=0$, thus making $\nu_e \leftrightarrow…

High Energy Physics - Phenomenology · Physics 2009-10-30 Kyungsik Kang , Sin Kyu Kang , Jihn E. Kim , Pyungwon Ko

We update our earlier study in [1], which was inspired by the 2002 SNO data, on the implications of the results of the solar neutrino experiments for the predictions of the effective Majorana mass in neutrinoless double beta-decay, |<m>|.…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Pascoli , S. T. Petcov

The diffuse cosmic supernova neutrino background (DSNB) is observational target of the gadolinium-loaded Super-Kamiokande (SK) detector and the forthcoming JUNO and Hyper-Kamiokande detectors. Current predictions are hampered by our still…

High Energy Astrophysical Phenomena · Physics 2021-03-24 Daniel Kresse , Thomas Ertl , Hans-Thomas Janka

In this article I review the constraints on neutrino mass and mixing coming from type-II supernovae. The bounds obtained on these parameters from shock reheating, r-process nucleosynthesis and from SN1987A are discussed. Given the current…

High Energy Physics - Phenomenology · Physics 2015-06-25 Srubabati Goswami

With the aim of improving our knowledge on supernova (SN) 1987A-like objects and, more in general, on H-rich SNe, we have developed a new analytic model to describe their post-explosive evolution. The distinctive features of this model are…

High Energy Astrophysical Phenomena · Physics 2025-02-21 M. L. Pumo , S. P. Cosentino

The rise time of a Galactic supernova (SN) bar-nue lightcurve, observable at a high-statistics experiment such as the IceCube Cherenkov detector, can provide a diagnostic tool for the neutrino mass hierarchy at "large" 1-3 leptonic mixing…

Solar and Stellar Astrophysics · Physics 2012-05-01 Pasquale Dario Serpico , Sovan Chakraborty , Tobias Fischer , Lorenz Hudepohl , Hans-Thomas Janka , Alessandro Mirizzi

We investigate the protoneutron star (PNS) convection using our newly developed general relativistic Boltzmann neutrino radiation-hydrodynamics code. This is a pilot study for more comprehensive investigations later. As such, we take a…

We describe the Neutrino Spectrum and detection for SN II sources. We discuss the effects of neutrino mixing in the SN II. A new analysis of SN1987A is described. We discuss the possible detection of the diffuse relic SN II flux. Finally we…

Astrophysics · Physics 2007-05-23 David B. Cline

Context. The origin of the astrophysical high-energy neutrino flux remains uncertain. Core-collapse supernovae with strong CSM interaction (Type IIn) are compelling candidates for efficient hadronic acceleration and neutrino production.…

We examine the status of various dark energy-models in light of the recently observed SN 1997ff at z \approx 1.7. The modified data still fit a pure cosmological constant \Lambda or a quintessence with an equation of state similar to that…

Astrophysics · Physics 2009-11-07 R. G. Vishwakarma

The neutrino signal from SN1987A confirmed the core-collapse scenario and the possible formation of a neutron star. Although this compact object has eluded all observations, theoretical and numerical developments have allowed a glimpse of…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Nissim Fraija , Cristian G. Bernal , A. M. Hidalgo-Gamez

Complementary to high-energy experimental efforts, indirect astrophysical searches of particles beyond the standard model have long been pursued. The present article follows the latter approach and considers, for the first time, the…

High Energy Astrophysical Phenomena · Physics 2025-01-15 Tobias Fischer , Jorge Martin Camalich , Hristijan Kochankovski , Laura Tolos

We re-examine the data taken by the neutrino detectors during the supernova SN1987A. It is found that the Kamiokande data, in addition to the well known burst at 7:35 hours UT, show another one at 7:54 hours, with seven pulses in 6.2…

General Relativity and Quantum Cosmology · Physics 2008-10-22 P. Galeotti , G. V. Pallottino , G. Pizzella

The recent results from the Los Alamos neutrino oscillation experiment, together with assumptions of neutrino oscillation solutions for the solar and atmospheric neutrino deficit problems, may place powerful constraints on any putative…

Astrophysics · Physics 2016-08-30 George M. Fuller , Joel R. Primack , Yong-Zhong Qian

Here we study the pattern of neutrino oscillations emerging from a previously proposed warped model construction incorporating $\Delta(27)$ flavor symmetry. In addition to a complete description of fermion masses, the model predicts the…

High Energy Physics - Phenomenology · Physics 2017-06-07 Pedro Pasquini , S. C. Chuliá , J. W. F. Valle