29,427 research outputs found
Is the LMA solar-neutrino solution ruled out by SN1987A data?
The development of new supernova neutrino detectors relies on the expected
hard energy spectrum of the nu_mu and nu_tau emitted in the supernova. We show
that SN1987A was sensitive to the large mixing angle (LMA) and "just so"
solution to the solar neutrino problem. We review the previous analysis of the
SN1987A data and propose a new analysis. The results of this analysis strongly
disfavor the LMA solution, provided the nu_mu and nu_tau are hard as predictedComment: 4 pages; 6 figures. Presented at the Europhysics Neutrino Oscillation
Workshop, NOW 2000 (EPS, Lecce, Italy, Sept. 9-16, 2000) and to be published
in Nucl. Phys. B (PS) (North Holland, Amsterdam, 2001
A new sap beetle (Coleoptera: Nitidulidae) to the United States with a revised key to the Camptodes Erichson occurring in America north of Mexico
A new beetle to the United States, Camptodes communis Erichson, is briefly described below. A diagnosis from the other Camptodes known to occur in the United States is provided. An updated key to the Camptodes of the United States is given
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