Vector polarization effect appearing in tensor polarized beams of nuclei under channeling conditions and during measurements of the quadrupole moments of unstable nuclei

2012 ◽  
Vol 6 (1) ◽  
pp. 176-181
Author(s):  
A. Ya. Silenko
Keyword(s):  
Polarization Effect ◽  
Quadrupole Moments ◽  
Vector Polarization ◽  
Polarized Beams ◽  
Unstable Nuclei

scholarly journals Physics Opportunities at a Photon–Photon Collider

2003 ◽  
Vol 18 (16) ◽  
pp. 2871-2892 ◽  
Author(s):  
Stanley J. Brodsky
Keyword(s):  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
High Energy ◽  
Quadrupole Moments ◽  
Spin Asymmetries ◽  
Polarized Beams ◽  
Single Spin ◽  
Single Spin Asymmetries ◽  
Photon Collider ◽  
Electron Photon

The advent of back-scattered laser beams for e±e-colliders will allow detailed studies of a large array of high energy γγ and γe collision processes with polarized beams. These include tests of electroweak theory in photon-photon annihilation such as γγ → W+W-, γγ → Higgs bosons, and higher-order loop processes, such as γγ → γγ, Zγ, H0Z0and ZZ. Methods for measuring the anomalous magnetic and quadrupole moments of the W and Z gauge bosons to high precision in polarized electron-photon and photon-photon collisions are discussed. Since each photon can be resolved into a W+W-pair, high energy photon-photon collisions can also provide a remarkably background-free laboratory for studying WW collisions and annihilation. I also review high energy γγ and eγ tests of quantum chromodynamics, including the production of two gluon jets in photon-photon collisions, deeply virtual Compton scattering on a photon target, and leading-twist single-spin asymmetries for a photon polarized normal to a production plane. Exclusive hadron production processes in photon-photon collisions provide important tests of QCD at the amplitude level, particularly as measures of hadron distribution amplitudes which are also important for the analysis of exclusive semi-leptonic and two-body hadronic B-decays.

Phenomenological and analytical solution of the Bohr model for even–even and odd–even nuclei with Mie potential

2019 ◽  
Vol 28 (08) ◽  
pp. 1950059 ◽  
Author(s):  
Nahid Soheibi ◽  
Mahdi Eshghi ◽  
Mohsen Bigdeli ◽  
Majid Hamzavi
Keyword(s):  
Analytical Solution ◽  
Dipole Moments ◽  
Dynamical Symmetry ◽  
Energy Spectra ◽  
Quadrupole Moments ◽  
Electromagnetic Transition ◽  
New Class ◽  
Unstable Nuclei ◽  
Shape Phase Transition ◽  
Mie Potential

In this paper, analytical solution of the Bohr model with Mie potential for even–even and odd–even nuclei are evaluated in the Bose alone symmetry [Formula: see text] and a new class of Bose–Fermi dynamical symmetry [Formula: see text], respectively. The excitation energy spectra as well as electromagnetic transition strengths, quadrupole moments and dipole moments are investigated near the critical point of shape phase transition between the spherical and deformed [Formula: see text]-unstable nuclei. To show our results are compatible with experiment, some examples are tested.

Polarization Effect Induced by Aligned Particles on Quadrupole Moments

1986 ◽  
Vol 33 (3) ◽  
pp. 210-214 ◽  
Author(s):  
Ikuko Hamamoto ◽  
Zheng Xing
Keyword(s):  
Polarization Effect ◽  
Quadrupole Moments

Optical pumping and unstable nuclei

1985 ◽  
Vol 10 (6) ◽  
pp. 659-674 ◽  
Author(s):  
E.W. Otten
Keyword(s):  
Optical Pumping ◽  
Unstable Nuclei

The Deformation Structure of the Nuclei 32S and 36Ar

2017 ◽  
Vol 13 (2) ◽  
pp. 4678-4688
Author(s):  
K. A. Kharroube
Keyword(s):  
Single Particle ◽  
Electric Quadrupole ◽  
Quadrupole Moments ◽  
Moments Of Inertia ◽  
Deformation Structures ◽  
Particle Potential ◽  
Nilsson Model ◽  
Single Particle Potential ◽  
Axes Of Symmetry ◽  
Good Agreement

We applied two different approaches to investigate the deformation structures of the two nuclei S32 and Ar36 . In the first approach, we considered these nuclei as being deformed and have axes of symmetry. Accordingly, we calculated their moments of inertia by using the concept of the single-particle Schrödinger fluid as functions of the deformation parameter β. In this case we calculated also the electric quadrupole moments of the two nuclei by applying Nilsson model as functions of β. In the second approach, we used a strongly deformed nonaxial single-particle potential, depending on Î² and the nonaxiality parameter γ , to obtain the single-particle energies and wave functions. Accordingly, we calculated the quadrupole moments of S32 and Ar36 by filling the single-particle states corresponding to the ground- and the first excited states of these nuclei. The moments of inertia of S32 and Ar36 are then calculated by applying the nuclear superfluidity model. The obtained results are in good agreement with the corresponding experimental data.

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