Thu·Nov 9, 2023Thursday·November 9, 2023

1. 01*

   Dynamics of causal hydrodynamic fluctuations in an expanding system

   Shin-ei Fujii🇯🇵 · Tetsufumi Hirano🇯🇵

   We develop a framework of causal hydrodynamic fluctuations in one-dimensional expanding system performing linearisation of the hydrodynamic equations around the boost invariant solution. Through the description of space-time evolution of thermodynamic variables and flow velocity, we find a novel phenomenon that the structure of thermodynamic variables is almost frozen. We also show that two-particle correlation functions of final hadrons after freezeout are closely related with the mass of hadrons and properties of the medium such as viscosity, relaxation time and equation of state.

   ↳ nucl-thhep-phnucl-exEPJ Web Conf.(2024)·1 citation
2. 02*

   Quick Guides for Use of the CompOSE Data Base

   Veronica Dexheimer🇺🇸 · Marco Mancini🇫🇷 · Micaela Oertel🇫🇷 · Constanca Providencia🇵🇹 · Laura Tolos🇪🇸 · Stefan Typel🇩🇪

   We present a combination of two quick guides aimed at summarizing relevant information about the CompOSE nuclear equation of state repository. The first is aimed at nuclear physicists and describes how to provide standard equation of state tables. The second quick guide is meant for users and describes the basic procedures to obtain customized tables with equation of state data. Several examples are included to help providers and users to understand and benefit from the CompOSE database.

   ↳ nucl-thastro-ph.HEastro-ph.SRnucl-exParticles(2022)·18 citations
3. 03*

   New lower background and higher rate technique for anti-neutrino detection using Tungsten 183 Isotope

   Jarred Novak🇺🇸 · Nickolas Solomey🇺🇸 · Brooks Hartsock🇺🇸 · Brian Doty🇺🇸 · Jonathan Folkerts🇺🇸

   Low energy anti-neutrinos detected from reactors or other sources have typically used the conversion of an anti-neutrino on Hydrogen, producing a positron and a free neutron. This neutron is subsequently captured on a secondary element with a large neutron capture cross section such as gadolinium or cadmium. We have studied the anti-neutrino conversion and suggest other elements that have a comparable cross section for anti-neutrino reactions. With most neutron captures on gadolinium, it is possible to get two or three delayed gamma signals of known energy to occur. Experiments like ATLAS can make measurements with timing on the order of 25 ns. With electronics like these, this leads to the possibility of having a triple delayed coincidence using the positron annihilation on atomic shell electrons as the starting signal. We have also found an isotope of tungsten, ${}^{183}$W that offers a large anti-neutrino interaction cross section of $1.19\times 10^{-46}$ m${}^2$ and an anti-neutrino threshold energy for the production of the ground state at 2.094 MeV and the production of the first excited state at 2.167 MeV. This reaction makes a nuclear m1 excited state of ${}^{183}$Ta${}^{\ast }$ that emits a signature secondary gamma pulse of 73 keV with a 106 ns half-life. This offers a new delayed coincidence technique that can be used to identify anti-neutrinos with lower background noise. This allows for less shielding than required for modern inverse beta decay detectors.

   ↳ physics.ins-detastro-ph.IMhep-exnucl-exJINST(2024)·0 citations
4. 04*

   LUCE: A milli-Kelvin calorimeter experiment to study the electron capture of 176Lu

   Shihong Fu🇨🇳 · Giovanni Benato🇮🇹 · Carlo Bucci🇮🇹 · Paolo Gorla🇮🇹 · Pedro V. Guillaumon🇮🇹 · Jiang Li🇨🇳 · Serge Nagorny🇨🇦 · Francesco Nozzoli🇮🇹 · Lorenzo Pagnanini🇮🇹 · Andrei Puiu🇮🇹 · Matthew Stukel🇨🇦

   The LUCE (LUtetium sCintillation Experiment) project will search for the 176Lu electron capture based on a milli-Kelvin calorimetric approach. This decay is of special interest in the field of nuclear structure, with implications for the s-process and for a better comprehension of the nuclear matrix elements of neutrinoless double beta decay (0{\nu}\b{eta}\b{eta}) and two-neutrino double beta decay (2{\nu}\b{eta}\b{eta}). Possible impacts also include the development of a new class of coherent elastic neutrino-nucleus scattering (CE{\nu}NS) and spin-dependent (independent) dark matter detectors. We report on the current status and design of a novel detector cryogenic-module for the measurement of the electron capture and detail a future measurement plan.

   ↳ physics.ins-detnucl-exJ.Low Temp.Phys.(2025)·0 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.