Gauge theory predictions for the electron-nucleus parity violating neutral current interaction

The Sudbury Neutrino Observatory is a 1000 T D2O Cerenkov detector that is sensitive to 8 B and hep solar neutrinos. Both Charged Current and Neutral Current interaction rates on deuterons as well as the Elastic Scattering interaction rate on electrons can be measured simultaneously. Assuming an undistorted 8 B neutrino spectrum, the total flux measured with the NC reaction is [Formula: see text], which is consistent with solar models. The νe component of the 8 B solar flux is [Formula: see text] for a kinetic energy threshold of 5 MeV. The non-νe component is [Formula: see text], which is 5.3σ greater than zero, giving strong evidence for solar νe flavor transformation. The Day-Night Asymmetry for the Charged Current interaction is [Formula: see text]. If the total flux of active neutrinos is additionally constrained to have no asymmetry, the νe asymmetry is found to be [Formula: see text]. Combined with other solar neutrino data, a global MSW oscillation analysis strongly favors the Large Mixing Angle (LMA) solution.

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Strength of the antineutrino-proton neutral-current interaction

Physical Review D ◽

10.1103/physrevd.18.7 ◽

1978 ◽

Vol 18 (1) ◽

pp. 7-15 ◽

Cited By ~ 10

Author(s):

M. Derrick ◽

P. Gregory ◽

L. G. Hyman ◽

K. Jaeger ◽

D. Lissauer ◽

...

Keyword(s):

Neutral Current ◽

Current Interaction

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Model-independent analysis of the neutral-current interaction in the inclusive neutrino reactions

Pramana ◽

10.1007/bf02847268 ◽

1974 ◽

Vol 3 (1) ◽

pp. 44-55 ◽

Cited By ~ 6

Author(s):

G Rajasekaran ◽

K V. L Sarma

Keyword(s):

Neutral Current ◽

Independent Analysis ◽

Current Interaction ◽

Model Independent

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NEUTRINO OSCILLATION IN DENSE MEDIUMS

International Journal of Modern Physics A ◽

10.1142/s0217751x09047090 ◽

2009 ◽

Vol 24 (18n19) ◽

pp. 3483-3492 ◽

Cited By ~ 1

Author(s):

Z. Y. LAW ◽

A. H. CHAN ◽

C. H. OH

Keyword(s):

Neutrino Oscillation ◽

Standard Treatment ◽

Neutral Current ◽

Matter Density ◽

Order Equation ◽

Second Order ◽

Dense Medium ◽

First Order ◽

Probability Current ◽

Current Interaction

It is found that a term normally discarded in the standard treatment of the MSW effect might be relevant in the case of non-adiabatic varying matter density, leading to a second order field equation, instead of the usual first order "Schrodinger equation". This leads to dispersion relation that gives rise to the possibility of neutrino trapping in a dense medium as well as the coupling of neutrino oscillation to neutral current interaction. This is found to be in agreement with previous results1. The corresponding conserved probability current is derived for this second order equation, and applied to the case of 2-flavor neutrino oscillation in a dense medium. The results in this work might be applicable to the oscillation of neutrinos in dense astrophysical medium.

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