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Related papers: 7Be(p,gamma)8B S-factor from ab initio no-core she…

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No-core configuration interaction (NCCI) calculations for p-shell nuclei give rise to rotational bands, identified by strong intraband E2 transitions and by rotational patterns for excitation energies, electromagnetic moments, and…

Nuclear Theory · Physics 2020-01-28 M. A. Caprio , P. J. Fasano , J. P. Vary , P. Maris , J. Hartley

The 7Be(p,gamma)8B reaction is one of the major source of uncertainties in estimating the 8B solar neutrino flux and is critical for undertsanding the Solar Neutrino Problem and neutrinos. The main source of uncertainty is the existence of…

Nuclear Experiment · Physics 2009-10-31 Moshe Gai

We aim to study the properties of nuclei in the south region of $^{208}$Pb systematically, including the binding and excitation energies and electromagnetic properties, in order to predict unknown properties of these nuclei, such as…

\item[Background] Ground-state spins and magnetic moments are sensitive to the nuclear wave function, thus they are powerful probes to study the nuclear structure of isotopes far from stability. \item[Purpose] Extend our knowledge about the…

The band structures of $^{68,70}$Ge, $^{128,130,132,134}$Ce and $^{132,134,136,138}$Nd are investigated using the triaxial projected shell model (TPSM) approach. These nuclei depict forking of the ground-state band into several s-bands and…

Nuclear Theory · Physics 2018-03-14 S. Jehangir , G. H. Bhat , J. A. Sheikh , R. Palit , P. A. Ganai

The resonance structure in $^{11}$C is particularly of interest with regard to the astrophysical $^{7}$Be($\alpha$, $\gamma$) reaction, relevant at high temperature, and to the $\alpha$-cluster structure in $^{11}$C. The measurement was to…

At finite temperatures ($\geq 10^7$K), $^{76}$Se is abundant in the core of massive stars and electron capture on $^{76}$Se has a consequential role to play in the dynamics of core collapse. The present work may be classified into two main…

Nuclear Theory · Physics 2025-03-12 Jameel-Un Nabi , Mavra Ishfaq , Mahmut Boyukata , Muhammad Riaz

The impact of nuclear molecular configurations on the astrophysical S-factor for $^{16}$O + $^{16}$O is investigated within the realistic two-center shell model based on Woods-Saxon potentials. These molecular effects refer to the formation…

Nuclear Theory · Physics 2008-11-26 A. Diaz-Torres , L. R. Gasques , M. Wiescher

Spectroscopic factors involving well bound nucleons in light nuclei are calculated with standard shell model, no-core shell model and Gamow shell model. Continuum coupling is included exactly in the Gamow shell model, due to the use of the…

Nuclear Theory · Physics 2023-03-21 M. R. Xie , J. G. Li , N. Michel , H. H. Li , S. T. Wang , H. J. Ong , W. Zuo

The nuclear structure dependence of direct reactions that remove a pair of like or unlike nucleons from a fast $^{12}$C projectile beam are considered. Specifically, we study the differences in the two-nucleon correlations present and the…

Nuclear Theory · Physics 2015-06-05 E. C. Simpson , P. Navrátil , R. Roth , J. A. Tostevin

A set of moderately deformed $s-d$ shell nuclei is employed for testing the reliability of the nuclear ground state wave functions which are obtained in the context of a BCS approach and offer a simultaneous consideration of deformation and…

Nuclear Theory · Physics 2009-11-11 Ch. C. Moustakidis , T. S. Kosmas , F. Simkovic , Amand Faessler

We report Green's function Monte Carlo calculations of isospin-mixing (IM) matrix elements for the 2+, 1+, and 3+ T=0,1 pairs of states at 16--19 MeV excitation in 8Be. The realistic Argonne v18 (AV18) two-nucleon and Illinois-7…

Nuclear Theory · Physics 2015-06-17 R. B. Wiringa , S. Pastore , Steven C. Pieper , Gerald A. Miller

We use microscopic 9Be wave functions defined in a alpha+alpha+n multicluster model to compute 9Be+target scattering cross sections. The parameter sets describing 9Be are generated in the spirit of the Stochastic Variational Method (SVM),…

Nuclear Theory · Physics 2018-01-31 P. Descouvemont , N. Itagaki

A general shell model formalism for the nonmesonic weak decay of the hypernuclei has been developed. It involves a partial wave expansion of the emitted nucleon waves, preserves naturally the antisymmetrization between the escaping…

Nuclear Theory · Physics 2007-05-23 C. Barbero , D. Horvat , F. Krmpotic , T. T. S. Kuo , Z. Naranvcic , D. Tadić

We present an ab initio study of the one-neutron halo nucleus $^{11}$Be using nuclear lattice effective field theory with high-fidelity chiral interactions at N3LO. By employing the wavefunction matching method to mitigate the sign problem…

Nuclear Theory · Physics 2026-03-12 Shihang Shen , Serdar Elhatisari , Dean Lee , Ulf-G. Meißner , Zhengxue Ren

Various measurements of the Coulomb breakup of 8B are analyzed within the dynamical eikonal approximation using a single description of 8B. We obtain a good agreement with experiment for different observables measured between 40 and 80 MeV…

Nuclear Theory · Physics 2009-11-13 G. Goldstein , P. Capel , D. Baye

We investigate the structures of $^{9,10}$Be and $^{10}$B with the tensor-optimized shell model (TOSM) using the effective interaction based on the bare nucleon-nucleon interaction AV8$^\prime$. The tensor correlation is treated in TOSM…

Nuclear Theory · Physics 2017-04-28 Takayuki Myo , Atsushi Umeya , Hiroshi Toki , Kiyomi Ikeda

We present the first combined analysis of the statistical rate function f in superallowed beta decays with ab initio calculations and data. We focus on C10 to 10B, 14O to 14N and 26mAl to 26Mg, all of which are important channels for the…

Nuclear Theory · Physics 2026-05-15 Bingcheng He , Mikhail Gorchtein , Matthias Heinz , Ben Ohayon , Lucas Platter , Chien-Yeah Seng

A fully antisymmetrized microscopic model is developed for light two-neutron halo nuclei using a hyper-spherical basis to describe halo regions. The many-body wavefunction is optimized variationally. The model is applied to 6He bound by…

Nuclear Theory · Physics 2014-11-21 I. Brida , F. M. Nunes

We present a systematic evaluation of the shape of the neutrino energy spectrum produced by beta-decay of $^8$B. We place special emphasis on determining the range of uncertainties permitted by existing laboratory data and theoretical…

Nuclear Theory · Physics 2008-11-26 John N. Bahcall , E. Lisi , D. E. Alburger , L. De Braeckeleer , S. J. Freedman , J. Napolitano