Salty neutrinos from the Sun

Neutrinos from the Sun

NEUTRINO TRAP is a tank filled with 100,000 gallons of a common cleaning fluid, tetrachloroethylene. It is located in a rock cavity 4,850 feet below the surface in the Homestake Mine in the town of Lead, S.D. The experiment is being run by Raymond Davis, Jr., Kenneth C. Hoffman and Don S. Harmer of Brookhaven National Laboratory. Suggested in 1964 by Davis and the author, the experiment was beg...

Low-energy Anti-neutrinos from the Sun

We consider the sensitivity of future neutrino experiments in the low energy region, such as BOREXINO or HELLAZ, to a solar ν̄e signal. We show that, if neutrino conversions within the Sun result in partial polarization of initial solar neutrino fluxes, then a new opportunity arises to observe the ν̄e’s and thus to probe the Majorana nature of the neutrinos. This is achieved by comparing the slop...

Salty Water Cerenkov Detectors for Solar Neutrinos

The addition of certain solutes to a water Cerenkov detector will introduce new charge-current channels for the detection of νes. The experimental conditions necessary to exploit such signals large volumes and very low backgrounds should be reached for the first time in SuperKamiokande and SNO. I compare some of the more attractive possibilities (7Li, 11B, 35Cl) in terms of counting rate, relia...

Probing the Desert with Ultra–Energetic Neutrinos from the Sun

Realistic superstring models generically give rise to exotic matter states, which arise due to the “Wilson–line” breaking of the non–Abelian unifying gauge symmetry. Often such states are protected by a gauge or local discrete symmetry and therefore may be stable or meta–stable. We study the possibility of a flux of high energy neutrinos coming from the sun due to the annihilation of such exoti...

Neutrinos from the Sun: Experimental results confronted with solar models.