Neutrinos in a gravitational background: A test for the universality of the gravitational interaction

H. Casini, J. C. D’Olivo, R. Montemayor, and L. F. Urrutia
Phys. Rev. D 59, 062001 – Published 12 February 1999
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Abstract

In this work we propose an extended formulation for the interaction between neutrinos and gravitational fields. It is based on the parametrized post-Newtonian approach, and includes a violation of the universality of the gravitational interaction which is nondiagonal in weak flavor space. We find new effects that are not considered in the standard scenario for violation of the equivalence principle. They are of the same order as the effects produced by the Newtonian potential, but they are highly directional dependent and could provide a very clean test of that violation. Phenomenological consequences are briefly discussed.

  • Received 2 November 1998

DOI:https://doi.org/10.1103/PhysRevD.59.062001

©1999 American Physical Society

Authors & Affiliations

H. Casini1, J. C. D’Olivo2, R. Montemayor1, and L. F. Urrutia1

  • 1Centro Atómico Bariloche and Instituto Balseiro, CNEA and Universidad Nacional de Cuyo, 8400 San Carlos de Bariloche, Ríο Negro, Argentina
  • 2Departamento de Física de Altas Energías - Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apartado Postal 70-543, 04510 México, Distrito Federal, México

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Issue

Vol. 59, Iss. 6 — 15 March 1999

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