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Related papers: Neutrino Flavor Evolution in Binary Neutron Star M…

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We examine the flavor evolution of neutrinos emitted from the disk-like remnant (hereafter called \lq\lq neutrino disk\rq\rq) of a binary neutron star (BNS) merger. We specifically follow the neutrinos emitted from the center of the disk,…

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

The remnant of neutron star mergers is dense in neutrinos. By employing inputs from one hydrodynamical simulation of a binary neutron star merger remnant with a black hole of $3\ M_\odot$ in the center, dimensionless spin parameter $0.8$…

High Energy Astrophysical Phenomena · Physics 2018-01-03 Meng-Ru Wu , Irene Tamborra , Oliver Just , Hans-Thomas Janka

We present results of large-scale numerical simulations of the evolution of neutrino and antineutrino flavors in the region above the late-time post-supernova-explosion proto-neutron star. Our calculations are the first to allow explicit…

Astrophysics · Physics 2007-05-23 Huaiyu Duan , George M. Fuller , J Carlson , 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

We examine neutrino evolution in astrophysical environments where the neutrino flux is very large, including core-collapse supernovae and neutron star mergers. In these environments, the neutrino-neutrino and neutrino-antineutrino…

High Energy Physics - Phenomenology · Physics 2026-03-13 Joseph Carlson , Alessandro Roggero , Duff Neill

We present the first numerical relativity simulations including neutrino flavor transformations that could result from flavor instabilities, quantum many-body effects, or potential beyond standard model physics in neutron star mergers. We…

High Energy Astrophysical Phenomena · Physics 2025-09-08 Yi Qiu , David Radice , Sherwood Richers , Maitraya Bhattacharyya

We present numerical relativity simulations of binary neutron star mergers incorporating neutrino flavor transformations triggered by fast flavor instability, quantum many-body effects, or potential beyond standard model physics. In both…

High Energy Astrophysical Phenomena · Physics 2026-01-14 Yi Qiu , David Radice , Sherwood Richers , Federico Maria Guercilena , Albino Perego , Maitraya Bhattacharyya

The large neutrino density in the deep interior of core-collapse supernovae and compact binary merger remnants makes neutrino flavor evolution non-linear because of the coherent forward scattering of neutrinos among themselves. Under the…

High Energy Astrophysical Phenomena · Physics 2023-08-16 Shashank Shalgar , Irene Tamborra

The flavor evolution of neutrinos in core collapse supernovae and neutron star mergers is a critically important unsolved problem in astrophysics. Following the electron flavor evolution of the neutrino system is essential for calculating…

High Energy Physics - Phenomenology · Physics 2023-12-29 Evan Grohs , Sherwood Richers , Sean M. Couch , Francois Foucart , James P. Kneller , G. C. McLaughlin

Neutrino-neutrino refraction dominates the flavor evolution in core-collapse supernovae, neutron-star mergers, and the early universe. Ordinary neutrino flavor conversion develops on timescales determined by the vacuum oscillation…

High Energy Astrophysical Phenomena · Physics 2021-09-28 Irene Tamborra , Shashank Shalgar

We calculate coherent neutrino and antineutrino flavor transformation in the supernova environment, for the first time including a self-consistent treatment of forward scattering-induced coupling and entanglement of intersecting…

Astrophysics · Physics 2008-11-26 Huaiyu Duan , George M. Fuller , J. Carlson , Yong-Zhong Qian

Simulations of neutrino flavor evolution in compact merger environments have shown that neutrino flavor, and hence nucleosynthesis, can be strongly affected by the presence of matter-neutrino resonances (MNRs), where there is a cancelation…

High Energy Astrophysical Phenomena · Physics 2018-05-02 A. Vlasenko , G. C. McLaughlin

In dense environments, standard and non-standard neutrino interactions with the background particles trigger a variety of flavor mechanisms, which can impact r-process nucleosynthetic abundances. Future observations of a(n) (extra)galactic…

High Energy Physics - Phenomenology · Physics 2021-11-17 Maria Cristina Volpe

Fast pairwise conversions of neutrinos are predicted to be ubiquitous in neutron star merger remnants with potentially major implications on the nucleosynthesis of the elements heavier than iron. We present the first sophisticated numerical…

High Energy Astrophysical Phenomena · Physics 2021-01-14 Ian Padilla-Gay , Shashank Shalgar , Irene Tamborra

Neutrino evolution, of great importance in environments such as neutron star mergers (NSMs) because of their impact on explosive nucleosynthesis, is still poorly understood due to the high complexity and variety of possible flavor…

High Energy Astrophysical Phenomena · Physics 2024-02-15 Julien Froustey , Sherwood Richers , Evan Grohs , Samuel D. Flynn , Francois Foucart , James P. Kneller , Gail C. McLaughlin

The evolution of neutrino flavor in dense environments such as core-collapse supernovae and binary compact object mergers constitutes an important and unsolved problem. Its solution has potential implications for the dynamics and…

High Energy Astrophysical Phenomena · Physics 2021-04-29 Ermal Rrapaj , Amol V. Patwardhan , Eve Armstrong , George Fuller

The Matter-Neutrino Resonance (MNR) phenomenon has the potential to significantly alter the flavor content of neutrinos emitted from compact object mergers. We present the first calculations of MNR transitions using neutrino self…

High Energy Physics - Phenomenology · Physics 2016-11-15 Yong-Lin Zhu , Albino Perego , Gail C. McLaughlin

The flavor evolution of neutrinos in dense astrophysical sources, such as core-collapse supernovae or compact binary mergers, is non-linear due to the coherent forward scattering of neutrinos among themselves. Recent work in this context…

High Energy Astrophysical Phenomena · Physics 2024-02-23 Marie Cornelius , Shashank Shalgar , Irene Tamborra

At high densities in compact astrophysical sources, the coherent forward scattering of neutrinos onto each other is responsible for making the flavor evolution non-linear. Under the assumption of spherical symmetry, we present the first…

High Energy Astrophysical Phenomena · Physics 2023-04-05 Shashank Shalgar , Irene Tamborra

Neutrino flavor evolution in core-collapse supernovae, neutron-star mergers, or the early universe is dominated by neutrino-neutrino refraction, often spawning "self-induced flavor conversion", i.e., shuffling of flavor among momentum…

High Energy Physics - Phenomenology · Physics 2016-06-22 Sovan Chakraborty , Rasmus Sloth Hansen , Ignacio Izaguirre , Georg Raffelt
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