English
Related papers

Related papers: Nuclear level density of ${}^{128}$Te from $(\math…

200 papers

We present near and mid--IR observations of a sample of Seyfert II galaxies drawn from the $12\mu$m Galaxy Sample. The sample was observed in the J, H, K, L, M and N bands. Galaxy Surface Brightness Profiles are modeled using nuclear,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Liza Videla , Paulina Lira , Heather Andrews , Almudena Alonso-Herrero , David M. Alexander , Martin Ward

The variation of total nuclear level densities (NLDs) and level density parameters with proton number $(Z)$ are studied around the $\beta$-stable isotope, $Z_{0}$, for a given mass number. We perform our analysis for a mass range $A=40$ to…

Nuclear Theory · Physics 2022-01-26 T. Ghosh , B. Maheshwari , Sangeeta , G. Saxena , B. K. Agrawal

The 96.4 day exposure of a 3 kg ultra-low noise germanium detector to the high flux of antineutrinos from a power nuclear reactor is described. A very strong preference ($p<1.2\times10^{-3}$) for the presence of a coherent elastic…

High Energy Physics - Experiment · Physics 2022-11-22 J. Colaresi , J. I. Collar , T. W. Hossbach , C. M. Lewis , K. M. Yocum

We present results from model fitting to the Spectral Energy Distribution (SED) of a homogeneous sample of Seyfert II galaxies drawn from the $12\mu$m Galaxy Sample. Imaging and nuclear flux measurements are presented in an accompanying…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Paulina Lira , Liza Videla , Yanling Wu , Almudena Alonso-Herrero , David M. Alexander , Martin Ward

The foundation of the local energy-density functional method to describe the nuclear ground-state properties is given. The method is used to investigate differential observables such as the odd-even mass differences and odd-even effects in…

Nuclear Theory · Physics 2009-11-07 S. A. Fayans , S. V. Tolokonnikov , E. L. Trykov , D. Zawischa

A hitherto unexplored method for the experimental determination of the photon strength function up to the neutron separation energy was developed at the Radiation Source ELBE in Dresden. It was applied to various heavy nuclei,…

The nuclear symmetry energy (E_sym(\roh)) is a vital ingredient of our understanding of many processes, from heavy-ion collisions to neutron stars structure. While the total nuclear symmetry energy at nuclear saturation density (\rho_0) is…

Nuclear Experiment · Physics 2015-02-09 Or Hen , Bao-An Li , Wen-Jun Guo , L. B. Weinstein , Eli Piasetzky

Here, we report on the measurements of the $\gamma$-ray strength functions and nuclear level densities of ${}^{112,114}$Sn performed for the first time at the 9~MV Tandem accelerator facilities at IFIN-HH using the Oslo method. We extract…

The low-energy monochromatic neutron emission from an Y-88/Be source can be exploited to mimic the few keVnr nuclear recoils expected from low-mass Weakly Interacting Massive Particles (WIMPs) and coherent scattering of neutrinos off…

Instrumentation and Detectors · Physics 2013-05-28 J. I. Collar

We present a new measurement of the energy dependence of nuclear transparency from AGS experiment E850, performed using the EVA solenoidal spectrometer, upgraded since 1995. Using a secondary beam from the AGS accelerator, we simultaneously…

High-energy neutrinos are detected by the IceCube Observatory in the direction of NGC 1068, the archetypical type II Seyfert galaxy. The neutrino flux, surprisingly, is more than an order of magnitude higher than the $\gamma$-ray upper…

High Energy Astrophysical Phenomena · Physics 2023-10-03 Ke Fang , Enrique Lopez Rodriguez , Francis Halzen , John S. Gallagher

The nuclear charge radius plays a vital role in determining the equation of state of isospin asymmetric nuclear matter. Based on the correlation between the differences in charge radii of mirror-partner nuclei and the slope parameter ($L$)…

Nuclear Theory · Physics 2023-09-19 Rong An , Shuai Sun , Li-Gang Cao , Feng-Shou Zhang

We report on the measurement of $^{11}$B and $^{40}$Ca levels between excitation energies of 8 and 9 MeV using nuclear resonance fluorescence (NRF). The experiment was carried out with nearly-monoenergetic and linearly polarized photon…

Nuclear Experiment · Physics 2022-07-27 D. Gribble , C. Iliadis , R. V. F. Janssens , U. Friman-Gayer , Krishichayan , S. Finch

Accurate knowledge about the neutron skin thickness $\Delta R_{np}$ in $^{208}$Pb has far-reaching implications for different communities of nuclear physics and astrophysics. Yet, the novel Lead Radius Experiment (PREX) did not yield…

Nuclear Theory · Physics 2015-04-10 Jianmin Dong , Wei Zuo , Jianzhong Gu

Proton and neutron densities have been obtained for the even-even isotopes of Sn from $^{100}$Sn to $^{176}$Sn using a Hartree-Fock-Bogoliubov model with a Skyrme interaction. The matter densities so defined have been used with realistic…

Nuclear Theory · Physics 2009-11-10 K. Amos , S. Karataglidis , J. Dobaczewski

Level density $\rho(E,N,Z)$ is derived for a nuclear system with a given energy $E$, neutron $N$, and proton $Z$ particle numbers, within the semiclassical extended Thomas-Fermi and periodic-orbit theory beyond the Fermi-gas saddle-point…

Nuclear Theory · Physics 2021-12-06 A. G. Magner , A. I. Sanzhur , S. N. Fedotkin , A. I. Levon , S. Shlomo

Inspired by the low--density Lee-Yang expansion for the energy of a dilute Fermi gas of density $\rho$ and momentum $k_F$, we introduce here a Skyrme--type functional that contains only $s$-wave terms and provides, at the mean--field level,…

Nuclear Theory · Physics 2017-06-07 M. Grasso , D. Lacroix , C. J. Yang

We present a probable experimental signature of collective enhancement in the nuclear level density (NLD) by measuring the neutron and the giant dipole resonance (GDR) $\gamma$ rays emitted from the rare earth $^{169}$Tm compound nucleus…

We apply a spin-projection method to calculate microscopically the level densities of a family of nickel isotopes $^{59-64}$Ni using the shell model Monte Carlo approach in the complete $pfg_{9/2}$ shell. Accurate ground-state energies of…

Nuclear Theory · Physics 2016-07-13 M. Bonett-Matiz , Abhishek Mukherjee , Y. Alhassid

The charged-particle pseudorapidity density measured over 4 units of pseudorapidity in non-single-diffractive (NSD) p-Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{\rm NN}} = 5.02$ TeV is presented. The average value…

Nuclear Experiment · Physics 2016-06-24 ALICE Collaboration