نتایج جستجو برای: nuclear parity
تعداد نتایج: 262886 فیلتر نتایج به سال:
S.G. Porsev, K. Beloy, and A. Derevianko Physics Department, University of Nevada, Reno, Nevada 89557, USA School of Physics, University of New South Wales, Sydney, New South Wales 2052, Australia Petersburg Nuclear Physics Institute, Gatchina, Leningrad District 188300, Russia Centre for Theoretical Chemistry and Physics, The New Zealand Institute for Advanced Study, Massey University Auckland...
We discuss some phenomenological issues of the effective quarklepton operators emerging from the bilinear lepton-Higgs couplings in the superpotential and in the soft supersymmetry (SUSY) breaking sector of the supersymmetric models without R-parity. The contribution of these operators to the neutrinoless double beta decay (0νββ) is derived. The corresponding nuclear matrix elements are calcula...
Here I review some nuclear physics aspects of core-collapse supernovae concerning neutrinos. Studies of neutrino emission and interactions in supernovae are crucial to our understanding of the explosion mechanism, the heavy element nucleosynthesis, and pulsar proper motions. I discuss the effects of reduced neutrino opacities in dense nuclear matter on supernova neutrino emission and their impl...
We discuss some phenomenological issues of the effective quarklepton operators emerging from the bilinear lepton-Higgs couplings in the superpotential and in the soft supersymmetry (SUSY) breaking sector of the supersymmetric models without R-parity. The contribution of these operators to the neutrinoless double beta decay (0νββ) is derived. The corresponding nuclear matrix elements are calcula...
The effects of nuclear medium on the residue, mass and self energy of the positive and negative parity Σ, Λ and Ξ hyperons are investigated using the QCD sum rule method. In the calculations, the general interpolating currents of hyperons with an arbitrary mixing parameter are used. We compare the results obtained in medium with those of the vacuum and calculate the shifts in the corresponding ...
Tensor representation (TR) for wave function (WF) of three–nucleon bound state with the total angular momentum I = 1/2 is discussed. The WF in TR has 16 complex components depending on vectors of relative momenta. Constraints on the WF imposed by requirements of invariance with respect to space inversion and time reversal are studied. Both parity– even and parity–odd components of the 3N bound ...
We show that the asymmetries in the nuclear resonance fluorescence processes with a circular polarized photon beam may be used as a tool for studying the parity nonconservation (PNC) in nuclei. The PNC asymmetry measurements both in exciting the parity doublet states and in exciting the discrete states near the ground states with parity mixing are discussed. We derived the formulae needed for m...
We propose a mean field framework in which the charge and the parity symmetries of a single-particle state are broken. We break these symmetries to incorporate the correlation induced by the tensor force into a nuclear mean field model. We perform the chargeand the parity projections before variation and obtain a Hartree-Fock-like equation (chargeand parity-projected Hartree-Fock equation), whi...
The CGMF code implements the Hauser-Feshbach statistical nuclear reaction model to follow de-excitation of fission fragments by successive emissions prompt neutrons and $\gamma$ rays. Monte Carlo technique is used facilitate analysis complex distributions correlations among observables. Starting from initial configurations for in mass, charge, kinetic energy, excitation spin, parity, $Y(A,Z,KE,...
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