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Nuclear PhysicsB299(1988)734-756 North-Holland, Amsterdam
 

Summary: Nuclear PhysicsB299(1988)734-756
North-Holland, Amsterdam
CONSTRAINTS ON THE ELECTRON-NEUTRINO MASS
FROM THE SUPERNOVA DATA
A systematic analysis
L.F. ABBOTTL2, A. DE ROJULA3 and T.P. WALKER1
1ThePhysicsDepartment, Boston University, Boston, USA
2ThePhysicsDepartment, Brandeis University, Waltham, USA
3CERN, Geneva, Switzerland
Received13 August 1987
The energy versus time of arrival pattem of neutrinos from SN1987A is sensitive to a
neutrinomass, m~, of order a few eV. To disentangleconstraints on m~ fromthe data, a theory of
supernova emission is necessary.We recall the present status of this theory and approximate its
predictions in two diffusion models: one designedto reflect the present supernova lore, the other
devised to pessimize,within reason, the consequent upper limits on m,. We discuss the model
dependence and statistical significanceof our results,as wellas the experimentaluncertainties and
caveats to which theyare subject.We address the question,do the supernovaresults supercede the
present laboratory limits on m~?
1. Introduction
Some amount of instant attention [1] has been given to the extraction of limits on

  

Source: Abbott, Laurence - Center for Neurobiology and Behavior & Department of Physiology and Cellular Biophysics, Columbia University

 

Collections: Biology and Medicine