Core-polarization effects in pion elastic scattering from polarized spin-1/2 nuclei

1995 ◽  
Vol 51 (4) ◽  
pp. 2006-2010 ◽  
Author(s):  
Kenji Kume ◽  
Naoko Nose
Keyword(s):  
Elastic Scattering ◽  
Core Polarization ◽  
Polarization Effects ◽  
Pion Elastic Scattering

scholarly journals New Transition and Energy Levels of Three-Times Ionized Krypton (Kr IV)

Atoms ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 48
Author(s):  
M. Raineri ◽  
M. Gallardo ◽  
J. Reyna Almandos ◽  
A. G. Trigueiros ◽  
C. J. B. Pagan
Keyword(s):  
Transition Probabilities ◽  
Energy Levels ◽  
Pulsed Discharge ◽  
Core Polarization ◽  
Polarization Effects ◽  
Hartree Fock ◽  
Theta Pinch ◽  
New Energy ◽  
First Time

A capillary pulsed-discharge and a theta-pinch were used to record Kr spectra in the region of 330–4800 Å. A set of 168 transitions of these spectra were classified for the first time. We extended the analysis to twenty-five new energy levels belonging to 3s23p24d, 3s23p25d even configurations. We calculated weighted transition probabilities (gA) for all of the experimentally observed lines and lifetimes for new energy levels using a relativistic Hartree–Fock method, including core-polarization effects.

Parity-nonconserving transitions in Cs and Tl: A semiempirical treatment of core-polarization effects

1988 ◽  
Vol 37 (10) ◽  
pp. 4034-4036 ◽  
Author(s):  
F. A. Parpia ◽  
W. F. Perger ◽  
B. P. Das
Keyword(s):  
Core Polarization ◽  
Polarization Effects

scholarly journals O2 State in 18 O by using Core – Polarization effects

2008 ◽  
pp. 66-72
Keyword(s):  
Perturbation Theory ◽  
Experimental Studies ◽  
Form Factors ◽  
Wave Model ◽  
Collective Model ◽  
Core Polarization ◽  
Polarization Effects ◽  
The Core ◽  
The Subject ◽  
Space Wave

Coulomb form factors for E0 transition in 18O are discussed taking into account core-polarization effects. These effects are taken into account through the collective model of Tassie and also through a microscopic perturbation theory including excitations up to 2p1f shell. Space wave model functions defined for the orbits 1 and 2125O nucleus has been the subject of extensive theoretical and experimental studies, which received much attention in last decade [Alex Brown et.al.2005]. The 18O system contains two neutrons in addition to the16O core distributed in the sd – shell. d1 are obtained from the diagonalization of the interaction Hamilonian of Wildenthal. The calculations include the 0 2state with excitation energies3.6337MeV. The core – polarization effects which incorporate the ollective model of Tassei describe the data very well for this state.

Measurements of differential cross sections and polarization effects in pion-proton elastic scattering in the momentum range 875 to 1579 MeV/ c

1966 ◽  
Vol 289 (1419) ◽  
pp. 449-462 ◽  
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Differential Cross ◽  
Pulse Height ◽  
Magnetic Core ◽  
Differential Cross Sections ◽  
Liquid Hydrogen Target ◽  
Hydrogen Target ◽  
Momentum Range ◽  
Polarization Effects

In this paper we discuss some measurements that have been made at Nimrod of differential cross sections and polarization effects in πp elastic scattering. The principal aims of this work were to determine the spins and parities of the N * 1/2 (1688) and the N* 3/2 (1920) isobars and to examine the behaviour of the π+p elastic scattering cross section at momenta around 950MeV/ c where a shoulder exists in the total cross sections. Table 1 gives the values of the momenta at which the measurements were made and figure 1 illustrates their relation to other work that has been done in or near this region. A schematic diagram of the experimental arrangement for measuring the differential cross sections is shown in figure 2. An array of scintillation counters, used in conjunction with a coincidence matrix detected particles scattered from a 4 in. long liquid hydrogen target. All events were accepted in which two and only two outgoing particles were detected in coincidence by any combination of two counters on opposite sides of the beam. The number of counts for each combination was stored in the magnetic core store of a 512 channel pulse height analyser

Core polarization effects on oscillator strengths in neutral zinc

1992 ◽  
Vol 45 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Tomas Brage ◽  
Charlotte Froese Fischer
Keyword(s):  
Oscillator Strengths ◽  
Core Polarization ◽  
Polarization Effects
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