GRB990705: No Evidence for Neutrino Signal

Walter Fulgione (fulgione@togcxl.to.infn.it)
Mon, 19 Jul 1999 16:12:04 +0000

Concerning the GRB990705 (BeppoSAX mail # 99/16 and 99/17):

the LVD neutrino telescope in the Gran Sasso Underground Laboratory
was running on July 5th, 16:01:25 UT and it has been steadily taking
data since June 22nd, with an active scintillator mass of 573 ton.

No evidence for any burst of neutrino interactions has been detected
inside a 48 hours time interval around the GRB time.

The data analisys on a wider time interval to find a possible weak
signal or to establish the limit on the neutrino emission is in
progress.

Results will be published, as soon as possible, on LNGS Internal Report
(http://scienza98.lngs.infn.it/)

Walter Fulgione
on behalf of
the Large Volume Detector collaboration.