Microscopic Structure of the Low-Energy Electric Dipole Response of Sn120

2021 ◽  
Vol 127 (24) ◽  
Author(s):  
M. Weinert ◽  
M. Spieker ◽  
G. Potel ◽  
N. Tsoneva ◽  
M. Müscher ◽  
...  
Keyword(s):  
Electric Dipole ◽  
Low Energy ◽  
Microscopic Structure ◽  
Dipole Response

scholarly journals Microscopic description of the pygmy dipole resonance in neutron-rich Ca isotopes

2018 ◽  
Vol 194 ◽  
pp. 04002
Author(s):  
N.N. Arsenyev ◽  
A.P. Severyukhin ◽  
V.V. Voronov ◽  
N.V. Giai
Keyword(s):  
Electric Dipole ◽  
Random Phase Approximation ◽  
Strength Function ◽  
Random Phase ◽  
Strength Distribution ◽  
Low Energy ◽  
Dipole Strength ◽  
Quasiparticle Random Phase Approximation ◽  
Dipole Resonance ◽  
Dipole Response

We study the effects of the phonon-phonon coupling on the low-energy electric dipole response within a microscopic model based on an effective Skyrme interaction. The finite rank separable approach for the quasiparticle random phase approximation is used. Choosing as an example the isotopic chain of Calcium, we show the ability of the method to describe the low-energy E1 strength distribution. With one and the same set of parameters we describe available experimental data for 48Ca and predict the electric dipole strength function for 50Ca.

scholarly journals Low-energy electric dipole response of Sn isotopes

2014 ◽  
Vol 89 (3) ◽  
Author(s):  
P. Papakonstantinou ◽  
H. Hergert ◽  
V. Yu. Ponomarev ◽  
R. Roth
Keyword(s):  
Electric Dipole ◽  
Low Energy ◽  
Dipole Response

scholarly journals Low-energy dipole response of exotic nuclei

2019 ◽  
Vol 55 (12) ◽  
Author(s):  
Thomas Aumann
Keyword(s):  
Equation Of State ◽  
Experimental Method ◽  
Invariant Mass ◽  
Mass Spectroscopy ◽  
Electric Dipole ◽  
Coulomb Excitation ◽  
Low Energy ◽  
Halo Nuclei ◽  
Relativistic Coulomb ◽  
Dipole Response

Abstract.The electric dipole response of neutron-rich nuclei is discussed from an experimental perspective using selected examples. After introducing the main experimental method, which is relativistic Coulomb excitation in conjunction with invariant-mass spectroscopy, the response of neutron-rich nuclei is discussed separately for light halo nuclei and heavier neutron-rich nuclei. Finally, the perspective for constraining the equation of state of neutron-rich matter close to saturation density from measurements of the dipole response of neutron-rich nuclei is discussed.

scholarly journals Low-energy electric dipole response in 120 Sn

2015 ◽  
Vol 744 ◽  
pp. 7-12 ◽  
Author(s):  
A.M. Krumbholz ◽  
P. von Neumann-Cosel ◽  
T. Hashimoto ◽  
A. Tamii ◽  
T. Adachi ◽  
...  
Keyword(s):  
Electric Dipole ◽  
Low Energy ◽  
Dipole Response

Erratum: Low-energy electric dipole response of Sn isotopes [Phys. Rev. C89, 034306 (2014)]

2015 ◽  
Vol 91 (2) ◽  
Author(s):  
P. Papakonstantinou ◽  
H. Hergert ◽  
V. Yu. Ponomarev ◽  
R. Roth
Keyword(s):  
Electric Dipole ◽  
Low Energy ◽  
Dipole Response

scholarly journals REVIEW OF THE PHENOMENOLOGY OF NONCOMMUTATIVE GEOMETRY

2004 ◽  
Vol 19 (02) ◽  
pp. 179-204 ◽  
Author(s):  
I. HINCHLIFFE ◽  
N. KERSTING ◽  
Y. L. MA
Keyword(s):  
Electric Dipole ◽  
Particle Physics ◽  
Extra Dimensions ◽  
Linear Collider ◽  
Dipole Moments ◽  
High Energy ◽  
Low Energy ◽  
Electric Dipole Moments ◽  
The Status ◽  
High Energy Scattering

We present a pedagogical review of particle physics models that are based on the noncommutativity of space–time, [Formula: see text], with specific attention to the phenomenology these models predict in particle experiments either in existence or under development. We summarize results obtained for high energy scattering such as would occur, for example, in a future e+e-linear collider with [Formula: see text], as well as low energy experiments such as those pertaining to elementary electric dipole moments and other CP violating observables, and finally comment on the status of phenomenological work in cosmology and extra dimensions.

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.

scholarly journals Top partner-resonance interplay in a composite Higgs framework

2018 ◽  
Vol 33 (11) ◽  
pp. 1841008 ◽  
Author(s):  
Juan Yepes ◽  
Alfonso Zerwekh
Keyword(s):  
Symmetry Breaking ◽  
Electric Dipole ◽  
Dipole Moments ◽  
Low Energy ◽  
Vector Resonance ◽  
Electric Dipole Moments ◽  
Parameter Spaces ◽  
Standard Model Fermion ◽  
Composite Higgs ◽  
The Standard Model

Guided us by the scenario of weak scale naturalness and the possible existence of exotic resonances, we have explored in a [Formula: see text] Composite Higgs setup the interplay among three matter sectors: elementary, top partners and vector resonances. We parametrize it through explicit interactions of spin-1 [Formula: see text]-resonances, coupled to the [Formula: see text]-invariant fermionic currents and tensors presented in this work. Such invariants are built upon the Standard Model fermion sector as well as top partners sourced by the unbroken [Formula: see text]. The mass scales entailed by the top partner and vector resonance sectors will control the low energy effects emerging from our interplaying model. Its phenomenological impact and parameter spaces have been considered via flavor-dijet processes and electric dipole moments bounds. Finally, the strength of the Nambu–Goldstone symmetry breaking and the extra couplings implied by the top partner mass scales are measured in accordance with expected estimations.

Electric dipole response in208Pb within a new microscopic multiphonon approach

2012 ◽  
Vol 86 (4) ◽  
Author(s):  
D. Bianco ◽  
F. Knapp ◽  
N. Lo Iudice ◽  
F. Andreozzi ◽  
A. Porrino ◽  
...  
Keyword(s):  
Electric Dipole ◽  
Dipole Response
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