Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-01-17
Phys.Rev.D77:093011,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 3 figures. Some clarifications and references added. Accepted for publication in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.77.093011
We discuss the limits on the neutrino magnetic moment and hypothetical interactions with a hidden unparticle sector, coming from the first neutrino data release of the Borexino experiment. The observed spectrum in Borexino depends weakly on the solar model used in the analysis, since most of the signal comes from the mono-energetic 7Be neutrinos. This fact allows us to calibrate the nu-e scattering cross section through the spectral shape. In this way, we have derived a limit on the magnetic moment for the neutrinos coming from the Sun (in which a nu_mu and nu_tau component is present): mu_nu<8.4E-11 mu_B (90%CL) which is comparable with those obtained from low energy reactor experiments. Moreover, we improve the previous upper limit on magnetic moment of the nu_tau by three orders of magnitude and the limit on the coupling constant of the neutrino with a hidden unparticle sector.
Montanino Daniele
Picariello Marco
Pulido Joao
No associations
LandOfFree
Probing neutrino magnetic moment and unparticle interactions with Borexino does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Probing neutrino magnetic moment and unparticle interactions with Borexino, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing neutrino magnetic moment and unparticle interactions with Borexino will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-392961