GRB990705

Subject: GRB990705
From: Walter Fulgione (fulgione@to.infn.it)
Date: Mon Sep 13 1999 - 12:27:26 EDT

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        Dear SNNET people,
        a preprint on the possible neutrino emission correlated with
        GRB990705 is now available at this URL:
        http://scienza98.lngs.infn.it/

        I would appreciate hearing any comments that you may have.

        Thanks,

        Walter Fulgione

        -------------------
        GRB990705: a detectable neutrino source?
        The LVD collaboration

        The detection of the Gamma Ray Burst GRB990705 on July 5th 1999,
        pointing to the Large Magellanic Clouds, suggested the search for
        the possible existence of a neutrino signal, either in coincidence
        or preceding the photon burst. We investigated this possibility by
        mean of the LVD neutrino telescope at the Gran Sasso Underground
        Laboratories.
        No evidence of a neutrino signal either simultaneous or preceding
        the GRB has been found, hence we set upper limits on the nuebar
        flux cross-section product. Assuming thermal nuebar spectra, the
        results are expressed in terms of limits on the nuebar flux for
        different spectral temperatures.

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