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We obtained total radiation widths of s-wave resonances through R-matrix analysis of 147Sm(n,gamma) cross-sections. Distributions of these widths differ markedly for resonances below and above 300 eV, in stark contrast to long-established…

A correlation is established between the neutron multiplicity and the neutrons number in the fission state of Curium and Californium isotopes within a microscopic study using relativistic mean field formalism. The study includes the…

Nuclear Theory · Physics 2019-11-13 M. Bhuyan , B. V. Carlson , S. K. Patra , R. K. Gupta

Coherent elastic neutrino scattering on the 40Ar nucleus is computed with coupled-cluster theory based on nuclear Hamiltonians inspired by effective field theories of quantum chromodynamics. Our approach is validated by calculating the…

Nuclear Theory · Physics 2020-01-01 C. G. Payne , S. Bacca , G. Hagen , W. Jiang , T. Papenbrock

We propose to determine the mass and the radius of a neutron star (NS) using three measurable mass-radius relationships, namely the ``apparent'' radius inferred from neutron star thermal emission, the gravitational redshift inferred from…

Astrophysics · Physics 2008-11-26 C. M. Zhang , H. X. Yin , Y. Kojima , H. K. Chang , R. X. Xu , X. D. Li , B. Zhang , B. Kiziltan

We introduce a new, powerful method to constrain properties of neutron stars (NSs). We show that the total mass of GW170817 provides a reliable constraint on the stellar radius if the merger did not result in a prompt collapse as suggested…

High Energy Astrophysical Phenomena · Physics 2017-12-13 Andreas Bauswein , Oliver Just , Hans-Thomas Janka , Nikolaos Stergioulas

The emission of neutrons from heavy ion reactions is an important observable for studying the asymmetric nuclear equation of state and the reaction dynamics. A 20-unit neutron array has been developed and mounted on the compact spectrometer…

Through continuous progress in nuclear theory and experiment and an increasing number of neutron-star observations, a multitude of information about the equation of state (EOS) for matter at extreme densities is available. To constrain the…

In the presence of non-standard neutrino interactions (NSI), a degeneracy exists in neutrino oscillation data, which involves the flipping of the octant of the mixing angle ${\theta_{12}}$ and the type of the neutrino mass ordering. In this…

High Energy Physics - Phenomenology · Physics 2021-05-10 Mariano Esteves Chaves , Thomas Schwetz

Relativistic mean-field models (RMF) based on the exchange of $\sigma$, $\omega$, and $\rho$ mesons including non-linear nucleon-$\sigma$ couplings and density-dependent $\rho$ coupling, are considered. A large set of models is generated…

Nuclear Theory · Physics 2025-04-01 Luca Passarella , Jerome Margueron , Giuseppe Pagliara

Despite significant theoretical efforts, the CREX-PREX dilemma remains unresolved, preventing the reliable prediction of neutron (or weak-charge) radii that, besides their intrinsic nuclear-structure interest, often serve to quantify the…

Nuclear Theory · Physics 2025-09-05 J. Piekarewicz

Using in-medium hadron properties according to the Brown-Rho scaling due to the chiral symmetry restoration at high densities and considering naturalness of the coupling constants, we have newly constructed several relativistic mean-field…

Nuclear Theory · Physics 2008-11-26 Wei-Zhou Jiang , Bao-An Li , Lie-Wen Chen

In the presence of non-standard neutrino interactions (NSI), oscillation data are affected by a degeneracy which allows the solar mixing angle to be in the second octant (aka the dark side) and implies a sign flip of the atmospheric…

High Energy Physics - Phenomenology · Physics 2017-12-20 Pilar Coloma , M. C. Gonzalez-Garcia , Michele Maltoni , Thomas Schwetz

By taking into account the surface diffuseness correction for unstable nuclei, the accuracy of the macroscopic-microscopic mass formula is further improved. The rms deviation with respect to essentially all the available mass data falls to…

Nuclear Theory · Physics 2015-06-19 Ning Wang , Min Liu , Xizhen Wu , Jie Meng

Reactor experiments are well suited to probe the possible loss of coherence of neutrino oscillations due to wave-packets separation. We combine data from the short-baseline experiments Daya Bay and the Reactor Experiment for Neutrino…

High Energy Physics - Phenomenology · Physics 2021-06-10 André de Gouvêa , Valentina De Romeri , Christoph A. Ternes

The present paper reports high-accuracy cross-section data for the 2H(n,nnp) reaction in the neutron-proton (np) and neutron-neutron (nn) final-state-interaction (FSI) regions at an incident mean neutron energy of 13.0 MeV. These data were…

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

A systematic study of the root-mean-square distance between the constituents of weakly-bound nuclei consisting of two halo neutrons and a core is performed using a renormalized zero-range model. The radii are obtained from a universal…

Nuclear Theory · Physics 2009-11-10 M. T. Yamashita , Lauro Tomio , T. Frederico

We study the complementarity between accelerator and reactor coherent elastic neutrino-nucleus elastic scattering (CE$\nu$NS) experiments for constraining new physics in the form of non-standard neutrino interactions (NSI). Firstly,…

High Energy Physics - Phenomenology · Physics 2018-02-14 James B. Dent , Bhaskar Dutta , Shu Liao , Jayden L. Newstead , Louis E. Strigari , Joel W. Walker

Assuming a~simple spherical relativistic mean field model of the nucleus, we estimate the width of the antiproton--neutron annihilation ($\Gamma_n$) and the width of antiproton--proton ($\Gamma_p$) annihilation, in an antiprotonic atom…

Nuclear Theory · Physics 2009-10-30 Andrzej Baran , Krzysztof Pomorski , Michal Warda

The observation of a non-classical rotation inertia (NCRI) fraction in bulk solid 4He by M. Chan and E. Kim attracted significant interest as a possible manifestation of supersolid state of matter. Despite numerous experimental and…

Other Condensed Matter · Physics 2009-11-13 Oleg Kirichek
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