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Related papers: Resonant Neutrino Spin-Flavor Precession and Super…

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We study the phase effects driven by neutrino magnetic moment for Majorana neutrinos in a core collapse supernova. A neutrino with a large magnetic moment is emitted in a superposition of energy eigenstates from the neutrinosphere. These…

High Energy Physics - Phenomenology · Physics 2024-07-11 T. Bulmus , Y. Pehlivan

Resonant spin-flavour (RSF) conversions of supernova neutrinos, which is induced by the interaction between the nonzero neutrino magnetic moment and supernova magnetic fields, are studied for both normal and inverted mass hierarchy. As the…

High Energy Physics - Phenomenology · Physics 2009-11-10 Shin'ichiro Ando , Katsuhiko Sato

The Resonant Spin-Flavor Precession (RSFP) of core-collapse supernova neutrinos within the framework of the quantum density matrix formalism is studied. The cooling duration of SN1987A severely constraints standard RSFP models for Dirac…

High Energy Physics - Phenomenology · Physics 2026-02-06 D. Delepine , A. Yebra

We study the resonant spin-flavor (RSF) conversion of supernova neutrinos, which is induced by the interaction between the nonzero neutrino magnetic moment and the supernova magnetic fields, and its dependence on presupernova models. As the…

High Energy Physics - Phenomenology · Physics 2009-11-10 Shin'ichiro Ando , Katsuhiko Sato

We investigate resonant spin-flavor (RSF) conversions of supernova neutrinos which are induced by the interaction of neutrino magnetic moment and supernova magnetic fields. From the formulation which includes all three-flavor neutrinos and…

High Energy Physics - Phenomenology · Physics 2016-09-06 Shin'ichiro Ando , Katsuhiko Sato

The neutrino spin-flavor conversion of \bar\nu_e and \nu_\mu which is induced by the interaction of the Majorana neutrino magnetic moment and magnetic fields in the collapse-driven supernova is investigated in detail. We calculate the…

Astrophysics · Physics 2014-10-13 Tomonori Totani , Katsuhiko Sato

We calculate the spin-flavor precession (SFP) of Dirac neutrinos induced by strong magnetic fields and finite neutrino magnetic moments in dense matter. As found in the case of Majorana neutrinos, the SFP of Dirac neutrinos is enhanced by…

High Energy Physics - Phenomenology · Physics 2023-09-14 Hirokazu Sasaki , Tomoya Takiwaki , A. Baha Balantekin

A new mechanism of supernova shock revival is proposed, which involves resonant spin--flavor precession of neutrinos with a transition magnetic moment in the magnetic field of the supernova. The mechanism can be operative in supernovae for…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Kh. Akhmedov , A. Lanza , S. T. Petcov , D. W. Sciama

The resonant transition effects MSW and NSFP for three flavour Majorana neutrinos in a supernova are considered, where the transition magnetic moments are likely to play a relevant role in neutrino physics. In this scenario, the deformed…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Esposito , V. Fiorentino , G. Mangano , G. Miele

Resonant Spin-Flavor Precession (RSFP) of solar neutrinos is studied using the quantum density matrix formalism, explicitly taking into account collisional decoherence and solar matter density profiles. The transition probabilities for…

High Energy Physics - Phenomenology · Physics 2026-02-06 D. Delepine , A. Yebra

Due to notoriously small value of the neutrino magnetic moment, the phenomena of neutrino spin flavour precession (SFP) requires very high magnetic field. This makes only a handful of systems suitable to study this phenomena. By the…

High Energy Physics - Phenomenology · Physics 2022-07-21 Jyotismita Adhikary , Ashutosh Kumar Alok , Arindam Mandal , Trisha Sarkar , Shreya Sharma

The wind driven by the intense neutrino emission from a protoneutron star (PNS) is an important site for producing nuclei heavier than the Fe group. Because of certain features in the neutrino angular distributions, the so-called fast…

High Energy Astrophysical Phenomena · Physics 2020-12-21 Zewei Xiong , Andre Sieverding , Manibrata Sen , Yong-Zhong Qian

Neutrinos emitted in the coalescence of two neutron stars affect the dynamics of the outflow ejecta and the nucleosynthesis of heavy elements. In this work, we analyze the neutrino emission properties and the conditions leading to the…

High Energy Astrophysical Phenomena · Physics 2020-11-16 Manu George , Meng-Ru Wu , Irene Tamborra , Ricard Ardevol-Pulpillo , Hans-Thomas Janka

Young pulsars are known to exhibit large space velocities, up to $10^3$ km/s. We propose a new mechanism for the generation of these large velocities based on an asymmetric emission of neutrinos during the supernova explosion. The mechanism…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Kh. Akhmedov , A. Lanza , D. W. Sciama

We consider Majorana neutrino conversions inside supernovae by taking into account both flavor mixing and the neutrino magnetic moment. We study the adiabaticity of various possible transitions between the neutrino states for both normal…

Astrophysics · Physics 2009-11-10 Amin Ahriche , Jamal Mimouni

Detailed dependence of resonant spin-flavor (RSF) conversion of supernova neutrinos on electron mole fraction Ye is investigated. Supernova explosion forms a hot-bubble and neutrino-driven wind region of which electron mole fraction exceeds…

High Energy Astrophysical Phenomena · Physics 2010-05-28 T. Yoshida , A. Takamura , K. Kimura , H. Yokomakura , S. Kawagoe , T. Kajino

We analyze the impact of resonant conversions mediated by non-vanishing magnetic moments between active neutrinos and a heavy sterile neutrino on the supernova neutrino flux. We present the level-crossing scheme for such a scenario and…

High Energy Physics - Phenomenology · Physics 2025-01-16 Edward Wang

We present neutrino bulb model simulations of Majorana neutrino coherent spin transformation (i.e., neutrino-antineutrino transformation), coupled to neutrino flavor evolution, for conditions corresponding to the neutronization burst epoch…

High Energy Astrophysical Phenomena · Physics 2017-03-08 James Y. Tian , Amol V. Patwardhan , George M. Fuller

We examine matter-enhanced neutrino flavor transformation ($\nu_{\tau(\mu)}\rightleftharpoons\nu_e$) in the region above the neutrino sphere in Type II supernovae. Our treatment explicitly includes contributions to the neutrino-propagation…

Astrophysics · Physics 2010-04-06 Yong-Zhong Qian , George M. Fuller

A core-collapse supernova (SN) releases almost all of its energy in the form of neutrinos, which provide a unique opportunity to probe the working machinery of a SN. These sites are prone to neutrino-neutrino refractive effects, which can…

High Energy Physics - Phenomenology · Physics 2024-06-03 Manibrata Sen
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