Single-particle transfer studies of 184Re

1976 ◽  
Vol 54 (14) ◽  
pp. 1493-1508 ◽  
Author(s):  
D. Elmore ◽  
W. P. Alford
Keyword(s):  
Cross Section ◽  
Single Particle ◽  
Ground State ◽  
Level Structure ◽  
Measured Cross Section ◽  
Rotational Bands ◽  
Particle Transfer ◽  
Q Values ◽  
Proton Orbital

The level structure of odd–odd 184Re has been investigated by means of the (3He,d) and (α,t) reactions on 183W and the (d,t) and (3He,α) reactions on 185Re. Measured relative Q values have been used to deduce the 184Re mass. The spectra are interpreted in terms of two-quasiparticle states formed by the coupling of the transferred particle and the odd particle in the target ground state, each in separate Nilsson orbitals. Identification of rotational bands is based on a comparison of the measured cross-section patterns and energy spacings with those predicted with the aid of Coriolis mixing and DWBA calculations. Assignments are proposed, some tentatively, for the bands arising from both the parallel and antiparallel coupling of the 5/2+[402] proton orbital with the 1/2−[510], 3/2−[512], 7/2−[503], and 11/2+[615] neutron orbitals.

scholarly journals Analogues of Excited States in 91Zr

1969 ◽  
Vol 22 (4) ◽  
pp. 541 ◽  
Author(s):  
GA Jones ◽  
GC Morrison ◽  
RB Taylor
Keyword(s):  
Excitation Energy ◽  
Excited States ◽  
Single Particle ◽  
Ground State ◽  
Level Structure ◽  
Positive Parity

The level structure in 91Zr has been investigated by Cohen and Chubinsky (1963) with the 90Zr (d, p)91Zr reaction. They noted some 14 levels up to an excitation energy of 3�9 MeV. All these states were found to have positive parity and their structure is fairly well understood in terms of coupling a single-particle neutron to the ground state and the first two excited states of 90Zr (Ramavataram 1964). A study of the isobaric analogues of the 9lZr states with the 90Zr(p, pO)90Zr reaction was carried out by Moore (1964).

scholarly journals Absolute Photoionization Cross Section for O I (3P) → O II (4S°)

1977 ◽  
Vol 43 ◽  
pp. 5-5
Author(s):  
J. L. Kohl ◽  
G. Lafayetis ◽  
H. P. Polenius ◽  
W. H. Parkinson
Keyword(s):  
Absorption Spectrum ◽  
Shock Tube ◽  
Cross Section ◽  
Experimental Work ◽  
Ground State ◽  
Atomic Oxygen ◽  
Photoionization Cross Section ◽  
Absolute Cross Section ◽  
Measured Cross Section ◽  
Theoretical Predictions

Measurements of the absolute cross section for photoionization from the 2p4 3P ground state of atomic oxygen will be described for wavelengths between the 4S° (91.2 nm) and 2D° (73.2 nm) limits. The cross section is determined from the absorption spectrum of shock heated mixtures of neon and oxygen at temperatures near 12000 K. The measured cross section will be compared to theoretical predictions and to earlier experimental work. Similar measurements of the photoionization cross section of H I which demonstrated the reliability of our windowless shock tube apparatus will be discussed briefly.

scholarly journals Corrigendum: Absolute Cross Sections of Proton Induced Reactions on 65Cu, 64Ni and 63Cu

1984 ◽  
Vol 37 (6) ◽  
pp. 709 ◽  
Author(s):  
ME Sevior ◽  
LW Mitchell ◽  
MR Anderson ◽  
CIW Tingwell ◽  
DG Sargood
Keyword(s):  
Statistical Model ◽  
Cross Section ◽  
Cross Sections ◽  
Ground State ◽  
State Transitions ◽  
Measured Cross Section ◽  
Cross Section Data ◽  
Model Code ◽  
Section Data ◽  
Proton Induced Reactions

In the analysis of the 64Ni(p, y)65CU cross-section data (Fig. 2, p. 467), insufficient weight was placed on the influence of resonance to ground state transitions. When these transitions are properly taken into account, the measured cross section is increased by amounts varying from 5 % to 30 % for individual points. A plot of the revised data, together with the predictions of the statistical model code HAUSER*4 is now presented

Properties of the ground state rotational bands in 169Tm and 171Tm

1968 ◽  
Vol 119 (2) ◽  
pp. 417-434 ◽  
Author(s):  
E.N. Kaufmann ◽  
J.D. Bowman ◽  
S.K. Bhattacherjee
Keyword(s):  
Ground State ◽  
Rotational Bands

scholarly journals NEW STRUCTURES IN 178HF AND COULOMB EXCITATION OF ISOMERS

2011 ◽  
Vol 20 (02) ◽  
pp. 474-481 ◽  
Author(s):  
A.B. HAYES ◽  
D. CLINE ◽  
C. Y. WU ◽  
A.M. HURST ◽  
M.P. CARPENTER ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Ground State ◽  
Coulomb Excitation ◽  
National Laboratory ◽  
Argonne National Laboratory ◽  
Particle Detector ◽  
Ground State Band ◽  
Rotational Bands ◽  
Coincidence Data ◽  
State Band

A 985 MeV 178 Hf beam was Coulomb excited by a 208 Pb target at the ATLAS accelerator of Argonne National Laboratory. Gammasphere and the CHICO particle detector recorded particle-γ coincidence data. The aim was to populate and determine the mechanism of previously observed Coulomb excitation of the Kπ = 6+ (t1/2 = 77 ns ), 8- (4 s ) and 16+ (31 y ) isomer bands. New rotational bands were identified including an aligned band which appears to mix with the ground-state band (GSB) and the γ-vibrational band above ~ 12 ħ of angular momentum. Newly observed γ-decay transitions into the three isomer bands may elucidate the K-mixing which allows Coulomb excitation of these isomer bands, but direct decays from the GSB into the 16+ isomer band have not yet been confirmed.

A controlled route to the competing phases and the single-particle spectral function in the ground state of the 2D Hubbard model

2007 ◽  
Vol 460-462 ◽  
pp. 248-251
Author(s):  
Werner Hanke ◽  
Markus Aichhorn ◽  
Enrico Arrigoni ◽  
Michael Potthoff
Keyword(s):  
Hubbard Model ◽  
Spectral Function ◽  
Single Particle ◽  
Ground State

scholarly journals Structure of the Super Neutronised Doubly Closed Shell Nucleus 132Sn

1992 ◽  
Vol 45 (1) ◽  
pp. 39 ◽  
Author(s):  
Rupayan Bhattacharya
Keyword(s):  
Fermi Surface ◽  
Charge Distribution ◽  
Excellent Agreement ◽  
Single Particle ◽  
Ground State ◽  
Closed Shell ◽  
Mass Region ◽  
Body Potential ◽  
State Charge ◽  
Closed Shell Nucleus

The scenario of single particle (proton as well as neutron) states near the Fermi surface of 132Sn has been investigated on the basis of an average one-body potential suitably optimised for 208Pb and then extrapolated to the mass region concerned. The calculation shows excellent agreement with experiment. The ground state charge distribution of the nucleus has also been calculated.

scholarly journals Engineering Reflective Metasurfaces with Ising Hamiltonian and Quantum Annealing

2021 ◽  
Author(s):  
Zhen Peng ◽  
Charles Ross ◽  
Qi Jian Lim ◽  
Gabriele Gradoni
Keyword(s):  
Cross Section ◽  
Mobile Networks ◽  
Ground State ◽  
Energy Minimization ◽  
Phase Modulation ◽  
Optimization Problem ◽  
Ground State Solution ◽  
Quantum Annealing ◽  
Adiabatic Evolution ◽  
Annealing Algorithms

<div><div><div><p>We present a novel and flexible method to optimize the phase response of reflective metasurfaces towards a desired scattering profile. The scattering power is expressed as a spin-chain Hamiltonian using the radar cross section formalism. For metasurfaces reflecting an oblique plane wave, an Ising Hamiltonian is obtained. Thereby, the problem of achieving the scattering profile is recast into finding the ground-state solution of the associated Ising Hamiltonian. To rapidly explore the configuration states, we encode the Ising coefficients with quantum annealing algorithms, taking advantage of the fact that the adiabatic evolution efficiently performs energy minimization in the Ising model. Finally, the optimization problem is solved on the D-Wave 2048-qubit quantum adiabatic optimizer machine for binary phase as well as quadriphase reflective metasurfaces. Even though the work is focused on the phase modulation of metasurfaces, we believe this approach paves the way to fast optimization of reconfigurable intelligent surfaces that are mod- ulated in both amplitude and phase for multi-beam generation in and beyond 5G/6G mobile networks.</p></div></div></div>

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