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Tuesday, July 21, 2020 | History

4 edition of A search for radiative neutrino decay from supernovae found in the catalog.

A search for radiative neutrino decay from supernovae

A search for radiative neutrino decay from supernovae

final technical report

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  • 37 Currently reading

Published by National Aeronautics and Space Administration in [Washington, DC .
Written in English

    Subjects:
  • Neutrino astrophysics,
  • Supernovae

  • Edition Notes

    StatementRobert C. Svoboda.
    Series[NASA contractor report] -- NASA CR-196011., NASA contractor report -- NASA CR-196011.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17446403M
    OCLC/WorldCa35179582

      Non-radiative neutrino decay can be induced by the interaction between neutrinos and massless or very light particles such as Majoron. The strongest lower limit to the neutrino lifetime-to-mass ratio is obtained from the solar neutrino observation [ 39 ]–[ 41 ] and meson decay Cited by: Supernovas are some of nature's most common and powerful nuclear bombs. They are also among the most useful for particle physicists and astrophysicists alike. [The last quarter of this post, on the OPERA experiment's claim of light traveling slower than neutrinos, has been updated a couple of times, in obvious italicized remarks, in response.

    A neutrino (/ n uː ˈ t r iː n oʊ / or / nj uː ˈ t r iː n oʊ /) (denoted by the Greek letter ν) is a fermion (an elementary particle with spin of 1 / 2) that interacts only via the weak subatomic force and gravity. The neutrino is so named because it is electrically neutral and because its rest mass is so small that it was long thought to be mass of the neutrino is much Composition: Elementary particle. Particle Astrophysics and Cosmology. Editors (view affiliations) Maurice M. Shapiro; Rein Silberberg; John P. Wefel; 1 Citations; Downloads; Part of the NATO ASI Series book series (ASIC, volume ) Log in to check access. Buy eBook. USD Buy eBook. USD A Search for Radiative Neutrino Decay from Supernovae. R. S. Miller.

    This book has been divided into four chapters Radioactivity and Isotopes, X-particles, Bdecay, Y Radiations. This book is very helpful for the students of Degree/Honours and post graduates. This book is also very useful to the candidate appearing in the various competitions like I.A.S. and others. Contents: Radioactivity and Isotopes, Alpha Particles, Beta-Decay, Gamma Radiation.   The beta-, neutrino- and proton-asymmetry in neutron [beta]-decay. Radiative neutron [beta]-decay in effective field theory. Search for radiative [beta]-decay of the free neutron. Detecting the radiative decay mode of the neutron. Monte Carlo study of the abBA experiment: detector response and physics analysis.


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A search for radiative neutrino decay from supernovae Download PDF EPUB FB2

A SEARCH FOR RADIATIVE NEUTRINO DECAY FROM SUPERNOVAE R.S. Miller and R.C. Svoboda Department of Physics and Astronomy Louisiana State University Baton Rouge, LA Abstract If a massive neutrino species exists then it is possible that it has a radiative decay mode.

Cosmological arguments require that a neutrino of mass > eV be unstable. A sensitive search for the decay gamma rays using extragalactic supernovae and SNa as neutrino sources is proceeding using the COMPTEL instrument aboard the Compton Gamma Ray Observatory.

The non-observation of decay gamma rays would place more stringent mass/lifetime limits on the neutrino than current limits by about orders of magnitude (depending on mass).Author: Richard S. Miller, Robert C. Svoboda. Title: A Search for Radiative Neutrino Decay from Supernovae: Authors: Miller, R.

S.; Ryan, J. M.; Svoboda, R. Publication: 24th International Cosmic Ray. This document presents the data analysis procedures proposed for use with the COMPTEL instrument aboard the Compton Gamma Ray Observatory (GRO) in the search for radiative neutrino decay from supernovae.

The proposed analysis methodology is an extension of a standard procedure used by the COMPTEL team in searching for a variety of source : Richard S. Miller, Robert C. Svoboda. This document presents the data analysis procedures proposed for use with the COMPTEL instrument aboard the Compton Gamma Ray Observatory (GRO) in the search for radiative neutrino decay.

TEL instrument aboard the Compton Gamma Ray Observatory in the search for radia-tive neutrino decay from supernovae. The proposed analysis methodology is an extension of a standard procedure used by the COMPTEL team in searching for a variety of source types.

We have applied the procedures to a set of simulated data to demonstrate the. We have performed a sensitive search for a massive neutrino species. The premise of the search is the existence of an unstable massive neutrino that decays radiatively. Because of its electromagnetic daughter product, a radiative decay may be the only mode that can be observed by: 4.

Abstract Two supernovae have been identified in the COMPTEL data base as being the best sources to investigate for evidence of gamma-ray emission caused by radiative neutrino decay.

These are SNa and : Robert C. Svoboda. A SEARCH FOR RADIATIVE NEUTRINO DECAY AND ITS POTENTIAL CONTRIBUTION TO THE COSMIC DIFFUSE GAMMA-RAY FLUX by RICHARD SCOTT MILLER University of New Hampshire, December, We have performed a sensitive search for a massive neutrino species.

The premise of the search is the existence of an unstable massive neutrino that decays radiatively. BecauseCited by: 4. Search for possible solar neutrino radiative decays during total solar eclipses, S. Cecchini et al., arXiv:hep-ex/, SPSE, Waw an Namos, Libya, March [Cecchinifz].

Abstract It is shown that, since the bulk of the approximately 10 53 ergs of neutron star binding energy emerges from a supernova as neutrinos the presence of a radiative decay channel for any type of neutrino with mass less than about 10 MeV can be severely constrained.

We have used this approach to consider a new mechanism of the neutrino quantum decoherence engendered by the neutrino radiative decay to photons and dark photons in an astrophysical environment.

The importance of the performed studies is highlighted by the prospects of the forthcoming new large volume neutrino detectors that will provide new Author: Konstantin Stankevich, Alexander Studenikin. Supernova Neutrinos. When a massive star at the end of its life collapses to a neutron star, it radiates almost all of its binding energy in the form of neutrinos, most of which have energies in the range MeV.

These neutrinos come in all flavors, and are emitted over a timescale of several tens of seconds. Get this from a library. A Search for radiative neutrino decay from supernovae: data analysis procedures.

[United States. National Aeronautics and Space Administration.;]. Neutrino mass. Neutrino lifetime. Magnetic moment of the neutrino.

Electric charge of neutrino. Strength of right-handed weak interactions. Radiative decay of neutrinos.

Bounds on Majoronic decay modes. Bound on neutrino mixings. Test of weak equivalence principle for neutrinos. Inferring neutrino spectrum from nearby supernovae. This uncertainty is correlated with our igno- rance of the exact equation of state at super-nuclear E(GeV) t B(T)q, ' and the implied time stretching 8t 1 (BIq,) 8E t 12 E' E ' J.A.

Grifols / Neutrino radiation from supernovae where 1 is the distance to the Large Magellanic Cloud and E is the energy of the : J.A. Grifols. neutrino burst. The search for a neutrino burst consists in recording of single events cluster within time interval of t = 20 s (according to the modern collapse models the burst duration does not exceed 20 s).

The expected number of neutrino interactions detected during an interval of duration ∆t from the beginning of the collapse can be Author: Valeriy Petkov, M.M.

Kochkarov, M.M. Boliev, I.M. Dzaparova, A.N. Kurenya, Yu.F. Novoseltsev, R.V. Supernovae Neutrinos Author Daniel Vignaud / Posted on 4 Jun 10 Mar 1 Comment At the beginning of the 80’s, big underground detectors were built to search for proton decay, following the predictions of the grand unified theories.

This clear and concise introduction to nuclear physics provides an excellent basis for a core undergraduate course in this area. The book opens by setting nuclear physics in the context of elementary particle physics and then shows how simple models can provide an understanding of the properties of nuclei, both in their ground states and excited states, and also of the nature of nuclear /5(3).

Čerenkov Radiation by Neutrinos in a Supernova Core. so that the known properties of supernovae and the observed SN A neutrino signal allow one to neutrino radiative decay, neutrino. The purpose of the Carolina Symposium was twofold: (1) to explore and exchange ideas on the latest developments in general frontiers of neutrino physics and related fields; (2) to address specific issues pertaining to the above-mentioned stopped pion neutrino facility.

SUPERNOVAE, the violent collapses of massive stars into neutron stars, are considered to be the strongest known sources of gravitational radiation.

The Cited by:   The Neutrino Hunters is comprehensive without being overburdened with detail or weighed down with too much theory, while the book's neat pen portraits of the men and women who tracked down the.