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Title: Neutrino breakup of A=3 nuclei in supernovae

Abstract

We extend the virial equation of state to include {sup 3}H and {sup 3}He nuclei, and predict significant mass-three fractions near the neutrinosphere in supernovae. While alpha particles are often more abundant, we demonstrate that energy transfer cross sections for muon and tau neutrinos at low densities are dominated by breakup of the loosely-bound {sup 3}H and {sup 3}He nuclei. The virial coefficients involving A=3 nuclei are calculated directly from the corresponding nucleon-{sup 3}H and nucleon-{sup 3}He scattering phase shifts. For the neutral-current inelastic cross sections and the energy transfer cross sections, we perform ab initio calculations based on microscopic two- and three-nucleon interactions and meson-exchange currents.

Authors:
 [1];  [2]; ;  [3];  [4];  [1]
  1. TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada)
  2. (Canada)
  3. Racah Institute of Physics, Hebrew University, 91904 Jerusalem (Israel)
  4. Nuclear Theory Center and Department of Physics, Indiana University, Bloomington, Indiana 47408 (United States)
Publication Date:
OSTI Identifier:
20995332
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevC.75.055803; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA PARTICLES; BOSON-EXCHANGE MODELS; CROSS SECTIONS; DENSITY; ENERGY TRANSFER; HELIUM 3; MASS NUMBER; MUONS; NEUTRAL CURRENTS; NUCLEONS; PHASE SHIFT; SCATTERING; TAU NEUTRINOS; TRITIUM; VIRIAL EQUATION

Citation Formats

O'Connor, E., Department of Physics, UPEI, 550 University Ave, Charlottetown, Prince Edward Island, C1A 4P3, Gazit, D., Barnea, N., Horowitz, C. J., and Schwenk, A. Neutrino breakup of A=3 nuclei in supernovae. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.055803.
O'Connor, E., Department of Physics, UPEI, 550 University Ave, Charlottetown, Prince Edward Island, C1A 4P3, Gazit, D., Barnea, N., Horowitz, C. J., & Schwenk, A. Neutrino breakup of A=3 nuclei in supernovae. United States. doi:10.1103/PHYSREVC.75.055803.
O'Connor, E., Department of Physics, UPEI, 550 University Ave, Charlottetown, Prince Edward Island, C1A 4P3, Gazit, D., Barnea, N., Horowitz, C. J., and Schwenk, A. Tue . "Neutrino breakup of A=3 nuclei in supernovae". United States. doi:10.1103/PHYSREVC.75.055803.
@article{osti_20995332,
title = {Neutrino breakup of A=3 nuclei in supernovae},
author = {O'Connor, E. and Department of Physics, UPEI, 550 University Ave, Charlottetown, Prince Edward Island, C1A 4P3 and Gazit, D. and Barnea, N. and Horowitz, C. J. and Schwenk, A.},
abstractNote = {We extend the virial equation of state to include {sup 3}H and {sup 3}He nuclei, and predict significant mass-three fractions near the neutrinosphere in supernovae. While alpha particles are often more abundant, we demonstrate that energy transfer cross sections for muon and tau neutrinos at low densities are dominated by breakup of the loosely-bound {sup 3}H and {sup 3}He nuclei. The virial coefficients involving A=3 nuclei are calculated directly from the corresponding nucleon-{sup 3}H and nucleon-{sup 3}He scattering phase shifts. For the neutral-current inelastic cross sections and the energy transfer cross sections, we perform ab initio calculations based on microscopic two- and three-nucleon interactions and meson-exchange currents.},
doi = {10.1103/PHYSREVC.75.055803},
journal = {Physical Review. C, Nuclear Physics},
number = 5,
volume = 75,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}