Dipole response in Te128,130 below the neutron threshold

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
J. Isaak ◽  
D. Savran ◽  
B. Löher ◽  
T. Beck ◽  
U. Friman-Gayer ◽  
...  
Keyword(s):  
Dipole Response

scholarly journals A biological Indian Ocean Dipole event in 2019

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Wei Shi ◽  
Menghua Wang
Keyword(s):  
Biological Activity ◽  
Indian Ocean ◽  
Indian Ocean Dipole ◽  
Infrared Imaging ◽  
Equatorial Indian Ocean ◽  
The West ◽  
Indian Ocean Dipole Event ◽  
Chl A ◽  
Positive Indian Ocean Dipole ◽  
Dipole Response

AbstractThe 2019 positive Indian Ocean Dipole (IOD) event in the boreal autumn was the most serious IOD event of the century with reports of significant sea surface temperature (SST) changes in the east and west equatorial Indian Ocean. Observations of the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the Suomi National Polar-orbiting Partnership (SNPP) between 2012 and 2020 are used to study the significant biological dipole response that occurred in the equatorial Indian Ocean following the 2019 positive IOD event. For the first time, we propose, identify, characterize, and quantify the biological IOD. The 2019 positive IOD event led to anomalous biological activity in both the east IOD zone and west IOD zone. The average chlorophyll-a (Chl-a) concentration reached over ~ 0.5 mg m−3 in 2019 in comparison to the climatology Chl-a of ~ 0.3 mg m−3 in the east IOD zone. In the west IOD zone, the biological activity was significantly depressed. The depressed Chl-a lasted until May 2020. The anomalous ocean biological activity in the east IOD zone was attributed to the advection of the higher-nutrient surface water due to enhanced upwelling. On the other hand, the dampened ocean biological activity in the west IOD zone was attributed to the stronger convergence of the surface waters than that in a normal year.

Efficient approach to include molecular polarizations using charge and atom dipole response kernels to calculate free energy gradients in the QM/MM scheme

2015 ◽  
Vol 17 (40) ◽  
pp. 26955-26968 ◽  
Author(s):  
Toshio Asada ◽  
Kanta Ando ◽  
Koji Sakurai ◽  
Shiro Koseki ◽  
Masataka Nagaoka
Keyword(s):  
Free Energy ◽  
Energy Surface ◽  
Free Energy Surface ◽  
Efficient Approach ◽  
Reaction Processes ◽  
Dipole Response

An efficient approach to evaluate free energy gradients within the QM/MM framework has been proposed to clarify reaction processes on the free energy surface.

A comparison with experiment of monopole and dipole response coefficient theory

1977 ◽  
Vol 4 (4-5) ◽  
pp. 189-192 ◽  
Author(s):  
E. Las Santafe ◽  
A. Colebrooke ◽  
M.D. Love
Keyword(s):  
Comparison With Experiment ◽  
Response Coefficient ◽  
Dipole Response

The electric dipole response of even-even 154-164Dy isotopes

2022 ◽  
Author(s):  
Huseynqulu Quliyev ◽  
Nilufer Demirci Saygı ◽  
Ekber Guliyev ◽  
Ali Akbar Kuliev
Keyword(s):  
Cross Sections ◽  
Random Phase Approximation ◽  
Random Phase ◽  
Electric Response ◽  
Quasiparticle Random Phase Approximation ◽  
Effective Interactions ◽  
Dipole Resonance ◽  
Pygmy Dipole Resonance ◽  
Strength Functions ◽  
Dipole Response

Abstract The excitation of pygmy dipole resonance (PDR) and giant dipole resonance (GDR) in even-even 154-164Dy isotopes is examined through quasiparticle random-phase approximation (QRPA) with the effective interactions that restores the broken translational and Galilean invariances. In each isotope, an electric response emerges by showing ample distribution at energies below and above 10 MeV. We, therefore, study the transition cross sections and probabilities, photon strength functions, transition strengths, isospin character, and collectivity of the predicted E1 responses.

scholarly journals Systematics of the electric dipole response in stable tin isotopes

2018 ◽  
Vol 178 ◽  
pp. 03008 ◽  
Author(s):  
Sergej Bassauer ◽  
Peter von Neumann-Cosel ◽  
Atsushi Tamii
Keyword(s):  
Electric Dipole ◽  
Strength Function ◽  
Research Centre ◽  
Underlying Structure ◽  
Skin Thickness ◽  
Neutron Skin ◽  
Proton Scattering ◽  
Heavy Nuclei ◽  
Scattering Experiment ◽  
Dipole Response

The electric dipole is an important property of heavy nuclei. Precise information on the electric dipole response provides information on the electric dipole polarisability which in turn allows to extract important constraints on neutron-skin thickness in heavy nuclei and parameters of the symmetry energy. The tin isotope chain is particularly suited for a systematic study of the dependence of the electric dipole response on neutron excess as it provides a wide mass range of accessible isotopes with little change of the underlying structure. Recently an inelastic proton scattering experiment under forward angles including 0º on 112,116,124Sn was performed at the Research Centre for Nuclear Physics (RCNP), Japan with a focus on the low-energy dipole strength and the polarisability. First results are presented here. Using data from an earlier proton scattering experiment on 120Sn the gamma strength function and level density are determined for this nucleus.

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