scholarly journals Solar neutrino interactions: Using charged currents at SNO to tell neutral currents at Super-Kamiokande

1998 ◽  
Vol 59 (1) ◽  
Author(s):  
F. L. Villante ◽  
G. Fiorentini ◽  
E. Lisi
Keyword(s):  
Solar Neutrino ◽  
Neutral Currents ◽  
Neutrino Interactions

SOLAR NEUTRINOS WITH EXOTIC SCATTERING

1993 ◽  
Vol 08 (14) ◽  
pp. 1273-1284 ◽  
Author(s):  
JOÃO PULIDO
Keyword(s):  
Elastic Scattering ◽  
Solar Neutrino ◽  
Solar Neutrinos ◽  
The Sun ◽  
Neutral Currents ◽  
Neutrino Scattering ◽  
Flavor Changing ◽  
Lepton Decays ◽  
Neutrino Experiments ◽  
Vacuum Mixing

The possibility of unconventional neutrino scattering in the Sun via flavor changing neutral currents as a possible source of the solar neutrino deficit is investigated. If the effect is really significant, a resonant process will occur. Taking into account the neutrino deficit reported by the solar neutrino experiments (Kamiokande II, SAGE Gallex), one finds Δ2m21 = (0.6–1.4) × 10−5 eV 2 with no vacuum mixing and 0.16 ≤ fex ≤ 0.34 where fex is the lepton violating coupling. Our understanding of the neutrino phenomenon in the Sun may be improved through accuracy improvements in experiments measuring νee− elastic scattering or others searching for exotic lepton decays.

Nondiagonal neutral currents in inclusive neutrino interactions

1977 ◽  
Vol 15 (5) ◽  
pp. 1246-1253 ◽  
Author(s):  
Gordon J. Aubrecht ◽  
E. Takasugi ◽  
K. Tanaka
Keyword(s):  
Neutral Currents ◽  
Neutrino Interactions

TESTING SOME PROPERTIES OF NEUTRAL CURRENT NEUTRINO INTERACTIONS IN NEUTRINO COUNTING REACTION

1988 ◽  
Vol 03 (03) ◽  
pp. 721-729 ◽  
Author(s):  
P. RAM BABU
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Z Boson ◽  
Neutral Current ◽  
Z Bosons ◽  
Coupling Constant ◽  
Neutral Currents ◽  
Lorentz Structure ◽  
Neutrino Interactions

We have considered the ‘neutrino counting’ reaction [Formula: see text]. We restrict to V, A Lorentz structure of weak neutral interaction (WNI), allow many Z bosons to mediate WNI and νi to be different from νj. We derive the expression for differential cross section by allowing the polarizations of e+ and e− but summing over the polarizations of final photons. From the study of differential cross section with polarized and unpolarized beams three different coupling constant combinations can be determined. A definite relation between these observables and the observables in [Formula: see text] scatterings is suggested as a test of single-Z-boson hypothesis. Similarly another test relates observables in [Formula: see text] to those of [Formula: see text] scatterings. By assuming universality a test for presence of nondiagonal neutrino neutral currents (NDνNC’s) is also pointed out. The effects of presence of wrong-handed (anti-) neutrinos on our tests are also discussed. As a by-product, we find a way to determine number of neutrino types, in the case i≠j, assuming universality.

scholarly journals Status of the solution to the solar neutrino problem based on non-standard neutrino interactions

2001 ◽  
Vol 97 (1-3) ◽  
pp. 235-238
Author(s):  
S. Bergmann ◽  
M.M. Guzzo ◽  
P.C. de Holanda ◽  
P.I. Krastev ◽  
H. Nunokawa
Keyword(s):  
Solar Neutrino ◽  
Solar Neutrino Problem ◽  
Neutrino Interactions
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