• Resonant spin-flavor precession constraints on the neutrino parameters and the twisting structure of the solar magnetic fields from the solar neutrino data

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      https://www.ias.ac.in/article/fulltext/pram/061/01/0067-0083

    • Keywords

       

      Solar neutrino problem; resonant spin-flavor precession; twisting solar magnetic fields

    • Abstract

       

      Resonant spin-flavor precession (RSFP) scenario with twisting solar magnetic fields has been confronted with the solar neutrino data from various ongoing experiments. The anticorrelation apparent in the Homestake solar neutrino data has been taken seriously to constrain (Δm2,φ′) parameter space and the twisting profiles of the magnetic field in the convective zone of the Sun. The twisting profiles, thus derived, have been used to calculate the variation of the neutrino detection rates with the solar magnetic activity for the Homestake, Super-Kamiokande and the gallium experiments. It is found that the presence of twisting reduces the degree of anticorrelation in all the solar neutrino experiments. However, the anticorrelation in the Homestake experiment is expected to be more pronounced in this scenario. Moreover, the anticorrelation of the solar neutrino flux emerging from the southern solar hemisphere is expected to be stronger than that for the neutrinos emerging from the northern solar hemispheres.

    • Author Affiliations

       

      S Dev1 Jyoti Dhar Sharma2 U C Pandey3 S P Sud1 B C Chauhan4 5

      1. Department of Physics, Himachal Pradesh University, Shimla - 171 005, India
      2. Government College, Kotshera, Shimla - 171 004, India
      3. IGNOU Regional Centre, Khanna - 141 401, India
      4. Government College, Karsog Dist., Mandi - 171 304, India
      5. Centro de Fisica das Interccoes Fundamentais, Instituto Superior Tecnico, Av. Rovisco Pais, Lisboa Codex - 1096, Portugal
    • Dates

       
  • Pramana – Journal of Physics | News

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