ID:
544270.0,
MPI für Physik / MPI für Physik 
Earth matter effects in supernova neutrinos: Optimal detector locations 
Authors:  Mirizzi, A.; Raffelt, G. G.; Serpico, P. D. 
Date of Publication (YYYYMMDD):  2006 
Title of Journal:  Journal of Cosmology and Astroparticle Physics 
Journal Abbrev.:  JCAP 
Issue / Number:  009 
Start Page:  012 
Audience:  Not Specified 
Intended Educational Use:  No 
Abstract / Description:  A modelindependent experimental signature for flavor oscillations in the neutrino signal from the next Galactic supernova (SN) would be the observation of Earth matter effects. We calculate the probability for observing a Galactic SN shadowed by the Earth as a function of the detector's geographic latitude. This probability depends only mildly on details of the Galactic SN distribution. A location at the North Pole would be optimal with a shadowing probability of about 60%, but a farnorthern location such as Pyhasalmi in Finland, the proposed site for a largevolume scintillator detector, is almost equivalent (58%). We also consider several pairs of detector locations and calculate the probability that only one of them is shadowed, allowing a comparison between a shadowed and a direct signal. For the South Pole combined with Kamioka this probability is almost 75%, for the South Pole combined with Pyhasalmi it is almost 90%. One particular scenario consists of a largevolume scintillator detector located in Pyhasalmi to measure the geoneutrino flux in a continental location and another such detector in Hawaii to measure it in an oceanic location. The probability that only one of them is shadowed exceeds 50% whereas the probability that at least one is shadowed is about 80%. 
Classification / Thesaurus:  Astroparticle Physics 
Comment of the Author/Creator:  17 pages, 6 eps figures. Online tool to calculate the Earth shadowing probabilities available at href{http://www.mppmu.mpg.de/supernova/shadowing}{this http URL} . Highresolution color version of fig_2a and fig_2b available at href{http://www.mppmu.mpg.de/supernova/shadowing/map}{this http URL} 
External Publication Status:  published 
Document Type:  Article 
Communicated by:  N.N. 
Affiliations:  MPI für Physik

Identifiers:  LOCALID:MPP200628 URL:http://www.slac.stanford.edu/spires/find/hep/www?r... URL:http://arXiv.org/abs/astroph/0604300 URL:http://publications.mppmu.mpg.de/?action=search&mp... 
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