Neutrino flow and gravitational collapse Page: 2 of 37
This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
Rm~,n ,M nY ry t Sni wmn n
. nl~f -. AM . 1
-1_~~~~~ rn . arrw wn . .w.am
NEUTRINO FLOW AND GRAVITATIONAL COLLAPSE
James R. Wilson
Lawrence Livermore Laboratory, University of California
Livermore, California 94550
The discovery of neutral currents in neutrino interactions has made
necessary the recalculation of the neutrino flow during stellar collapse.
Neutral currents cause a coherent scattering cross section of complex nuclei
proportional to the square of the atomic weight. This allows neutrinos to
escape easily from the hot, dense center where only free baryons exist. The
neutrinos then interact strongly in the outer region of high atomic weight and,
under certain circumstances, produce a supernovae-like explosion in the outer
reaches of the star, leaving a neutron star behind. For an explosion t. occur,
the scattering in the envelope of heavy nuclei must be greater than the
scattering of the free baryons in the core. In particular, with Freedman's
interpretation of Weinberg's theory, the cross section ratio is insufficient to
produce an explosion. Other theories state that suppressing the free baryon
cross section does lead to an explosion.
This work was performed under the a.uspices of the U.S. Energy Research &
c~z;t~id nyc ..- ' - ' - -
Here’s what’s next.
This article can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Article.
Wilson, J.R. Neutrino flow and gravitational collapse, article, August 18, 1975; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc872174/m1/2/?rotate=270: accessed September 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.