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Related papers: Charge radius of the short-lived $^{68}$Ni and cor…

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The neutron is a cornerstone in our depiction of the visible universe. Despite the neutron zero-net electric charge, the asymmetric distribution of the positively- (up) and negatively-charged (down) quarks, a result of the complex…

Nuclear Experiment · Physics 2021-04-22 H. Atac , M. Constantinou , Z. -E. Meziani , M. Paolone , N. Sparveris

Just as $^3\roarrow{\rm He}$ can be approximately characterized as a polarized neutron target, polarized \Li6D has been advocated as a good {\em isoscalar} nuclear target for the extraction of the polarized gluon content of the nucleon. The…

Nuclear Theory · Physics 2014-11-18 N. W. Schellingerhout , L. P. Kok , S. A. Coon , R. M. Adam

The accuracy of atomic theory calculations limits the extraction of nuclear charge radii from isotope shift measurements of odd-proton nuclei. For Na isotopes, though precise spectroscopic measurements have existed since more than half a…

Atomic Physics · Physics 2022-03-31 B. Ohayon , R. F. Garcia Ruiz , Z. H. Sun , G. Hagen , T. Papenbrock , B. K. Sahoo

The di-neutron correlation is a spatial correlation with which two valence neutrons are located at a similar position inside a nucleus. We discuss possible experimental probes for the di-neutron correlation. This includes the Coulomb…

Nuclear Theory · Physics 2016-03-23 K. Hagino , H. Sagawa

Doubly magic nuclei have a simple structure and are the cornerstones for entire regions of the nuclear chart. Theoretical insights into the supposedly doubly magic $^{78}$Ni and its neighbors are challenging because of the extreme…

Nuclear Theory · Physics 2016-10-26 G. Hagen , G. R. Jansen , T. Papenbrock

Three-nucleon short-range correlation ($3N$ SRC) represents a rare and intriguing part of the nuclear dynamics at short distance, beyond the two-nucleon short-range correlation ($2N$ SRC). To search its existence is a hot topic in the…

Nuclear Theory · Physics 2024-07-03 Na-Na Ma , Rong Wang

A new method is proposed to deduce the neutron radii of neutron-rich nuclei. This method requires measuring the reaction cross sections of both the neutron-rich nucleus and its stable isotope at the same energy on a proton target. Using…

Nuclear Theory · Physics 2020-04-22 I. A. M. Abdul-Magead , Eman Hamza , Badawy Abu-Ibrahim

The isotope $^{229}$Th is unique in that it possesses an isomeric state of only a few eV above the ground state, suitable for nuclear laser excitation. An optical clock based on this transition is expected to be a very sensitive probe for…

The neutron is electrically neutral, but its substructure consists of charged quarks so it may have an internal charge distribution. In fact it is known to have a negative mean square charge radius (MSCR), the second moment of the radial…

Nuclear Experiment · Physics 2009-11-11 F. E. Wietfeldt , M. Huber , T. C. Black , H. Kaiser , M. Arif , D. L. Jacobson , S. A. Werner

The detection of polarized continuum and line emission from the nucleus of NGC 4258 by Wilkes et al. (1995) provides an intriguing application of the unified model of Seyfert nuclei to a galaxy in which there is known to be an edge-on,…

An overview is given of the theoretical work on nucleon spectral functions in finite nuclei. The consequences of the observed spectral strength distribution are then considered in the context of the nuclear-matter saturation problem.…

Nuclear Theory · Physics 2009-09-25 W. H. Dickhoff , E. P. Roth

We perform a global sensitivity analysis of the binding energy and the charge radius of the nucleus $^{16}$O to identify the most influential low-energy constants in the next-to-next-to-leading order chiral Hamiltonian with two- and…

Nuclear Theory · Physics 2019-12-25 Andreas Ekström , Gaute Hagen

We study the Borromean nuclei formed by a core nucleus and two neutrons in a nonrelativistic effective field theory formalism considering both neutron-neutron and neutron-core interactions. We provide formulae of the charge and matter…

Nuclear Theory · Physics 2023-01-19 Jin-Yi Pang , Li-Tan Li , Feng-Kun Guo , Jia-Jun Wu

Charge radius is one of the most fundamental properties of a nucleus. However, a precise description of the evolution of charge radii along an isotopic chain is highly nontrivial, as reinforced by recent experimental measurements. In this…

Nuclear Theory · Physics 2022-01-19 Xiao-Xu Dong , Rong An , Jun-Xu Lu , Li-Sheng Geng

In previous work it was shown that the radius of nucleus R is determined by the alpha-cluster structure and can be estimated on the number of alpha-clusters disregarding to the number of excess neutrons. A hypothesis also was made that the…

Nuclear Theory · Physics 2010-11-05 G. K. Nie

We have obtained a new limit on the electron neutrino effective charge radius from a new evaluation of the weak mixing angle by a combined fit of all electron-(anti)neutrino electron elastic scattering measurements. Weak mixing angle is…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Barranco , O. G. Miranda , T. I. Rashba

In this paper we obtain a bound $\Lambda_{\rm NC} < 150$ TeV on the scale of space-time noncommutativity considering photon-neutrino interactions. We compute "star-dipole moments" and "star-charge radii" originating from space-time…

High Energy Physics - Theory · Physics 2007-05-23 Peter Minkowski , Peter Schupp , Josip Trampetic

High-precision mass measurements of more than thirty neutron-rich nuclides around the Z=28 closed proton shell were performed with the triple-trap mass spectrometer ISOLTRAP at ISOLDE/CERN to address the question of a possible neutron shell…

We review the Lorentz integral transform coupled-cluster method for the calculation of the electric dipole polarizability. We benchmark our results with exact hyperspherical harmonics calculations for 4He and then we move to a heavier…

We introduce a method to calculate the effect of short-range correlation (SRC) on the proton density distribution numerically, up to the first order of the cluster expansion, that can be used for wide range of closed shell nuclei and…

Nuclear Theory · Physics 2025-06-09 Tianyang Ma , Shalom Shlomo