ELFT HÍRADÓ

[Zoltan Mate <mate AT atomki.mta.hu>]

Az MTA Atommagkutató Intézetének előadótermében
(Debrecen, Bem tér 18/c. 12. ép. III. em.)
2012. december 18-án, KEDDEN 11:00-kor


             Marco PALLAVICINI
       (Universitá di Genova & INFN)

         The Borexino experiment


címmel előadást tart.

Az előadás előtt 10:30-tól tea, vendégeket szívesen látunk.


                                           Máté Zoltán


Kivonat:

The Borexino experiment has been designed and built with the aim of 
measuring low energy solar neutrinos with an ultrapure scintillator 
detector. The data taking has begun on May 2007, and since then some 
important results have been achieved: the precision measurement of the 
Be-7 neutrinos, the low threshold measurement of B-8 neutrinos, a clear 
signal of geo-neutrinos and, recently, the first observation of pep 
neutrinos. Other important results on rare events search were also 
obtained. The physics program, however, is by no means over. The excellent 
radio-purity of the detector offers the possibility of detecting other 
solar neutrino components like the pp neutrinos and, most important, the 
CNO neutrinos. The direct observation of the latter would have important 
consequence in stellar astrophysics and in solar physics. 

The Borexino detector will also be used for another fundamental physics 
experiment. A new project, called SOX (Short distance neutrino 
Oscillations with BoreXino) will search for sterile neutrinos or other 
short distance new physics by means of an artificial neutrino source 
located beneath the Borexino detector at 8.5 m from the center. This 
experiment was recently financed by the European Community (ERC Advanced 
Grant) and will be performed in the next five years. A great opportunity 
for new groups who would like to join the effort. 

Last but not least, other R&D projects are in progress for the use of 
Borexino in the future. One option that is throughly under investigation 
is the possibility for a very large and very sensitive double beta decay 
experiment made with Xenon 136 dissolved in the liquid scintillator.