2,896 research outputs found

    Jarlskog Invariant of the Neutrino Mapping Matrix

    Full text link
    The Jarlskog Invariant JΞ½βˆ’mapJ_{\nu-map} of the neutrino mapping matrix is calculated based on a phenomenological model which relates the smallness of light lepton masses mem_e and m1m_1 (of Ξ½1\nu_1) with the smallness of TT violation. For small TT violating phase Ο‡l\chi_l in the lepton sector, JΞ½βˆ’mapJ_{\nu-map} is proportional to Ο‡l\chi_l, but mem_e and m1m_1 are proportional to Ο‡l2\chi_l^2. This leads to JΞ½βˆ’mapβ‰…1/6memΞΌ+O(memΞΌmΟ„2)+O(m1m2m32) J_{\nu-map} \cong {1/6}\sqrt{\frac{m_e}{m_\mu}}+O \bigg(\sqrt{\frac{m_em_\mu}{m_\tau^2}}\bigg)+O \bigg(\sqrt{\frac{m_1m_2}{m_3^2}}\bigg). Assuming m1m2m32<<memΞΌ\sqrt{\frac{m_1m_2}{m_3^2}}<<\sqrt{\frac{m_e}{m_\mu}}, we find JΞ½βˆ’mapβ‰…1.16Γ—10βˆ’2J_{\nu-map}\cong 1.16\times 10^{-2}, consistent with the present experimental data.Comment: 19 page

    Nuclear and Particle Physics applications of the Bohm Picture of Quantum Mechanics

    Full text link
    Approximation methods for calculating individual particle/ field motions in spacetime at the quantum level of accuracy (a key feature of the Bohm Picture of Quantum Mechanics (BP)), are studied. Modern textbook presentations of Quantum Theory are used throughout, but only to provide the necessary, already existing, tested formalisms and calculational techniques. New coherent insights, reinterpretations of old solutions and results, and new (in principle testable) quantitative and qualitative predictions, can be obtained on the basis of the BP that complete the standard type of postdictions and predictions.Comment: 41 page

    Relative biological effectiveness of fast neutrons compared with X-rays: Prenatal mortality in the mouse

    Get PDF
    The effects of fission neutrons and of X-rays on the mouse zygote are discussed. Seven-week-old virgin mice were allowed a 12-hour mating opportunity beginning at 7:00 P.M. Between 1:30 and 4:00 P.M., except where indicated otherwise, the females which had mated (vaginal plug) during the night were either irradiated or sham-irradiated. At the time of irradiation the zygotes were in a pronuclear stage. Sixteen days later the mice were killed and the uteri dissected. The number of dead embryos, live embryos, and gross anomalies were determined. Dead embryos were classified as to stage of development
    • …
    corecore