2022-12-03T06:17:56Zhttps://soar-ir.repo.nii.ac.jp/oaioai:soar-ir.repo.nii.ac.jp:000120152022-06-29T02:20:24ZAnalysis of solar neutrino problem by means of Notzold and Nakagawa's approach including the interference term. - Hyperbolic-tangent profile for electron density in the sun and exact solution -KANEYAMA, MBIYAJIMA, MUsing an exact solution with the hyperbolic-tangent profile for the electron density in the sun, which is developed by Notzold and later modified by Nakagawa, we have analyzed the solar neutrino problem. An interference term in their approach is correctly taken into account. Combining the hyperbolic-tangent profile with the BP2000, we obtain a phenomenological fitting in the analytic form. Combining recent observed results for survival probability P(ν/!→ν/!) by the SNO, SK, SAGE, Gallex, GNO and Homestake Collaborations, we obtain a large mixing angle (LMA) whose figure looks like a shoulder.Article信州大学理学部紀要 38: 13-21(2004)departmental bulletin paper信州大学理学部2004-03-26application/pdf信州大学理学部紀要3813210583-063XAA00697923https://soar-ir.repo.nii.ac.jp/record/12015/files/Science38-02.pdfeng