Results 1 to 10 of about 6,791,604 (381)

Spontaneous scalarization in proto-neutron stars [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Proto-neutron stars are born when a highly evolved and massive star collapses under gravity. In this paper, we investigate the spontaneous scalarization in proto-neutron stars.
Fahimeh Rahimi, Zeinab Rezaei
doaj   +2 more sources

WIMP Annihilation and Cooling of Neutron Stars [PDF]

open access: yesPhys.Rev.D77:023006,2008, 2007
We study the effect of WIMP annihilation on the temperature of a neutron star. We shall argue that the released energy due to WIMP annihilation inside the neutron stars, might affect the temperature of stars older than 10 million years, flattening out the temperature at $\sim 10^4$ K for a typical neutron star.
A. Alpar   +3 more
arxiv   +4 more sources

Decoupling of a neutron interferometer from temperature gradients [PDF]

open access: yesReview of Scientific Instruments, 2016
Neutron interferometry enables precision measurements that are typically operated within elaborate, multi-layered facilities which provide substantial shielding from environmental noise. These facilities are necessary to maintain the coherence requirements in a perfect crystal neutron interferometer which is extremely sensitive to local environmental ...
Robert Haun   +17 more
openaire   +8 more sources

Determination of neutron temperature in irradiation channels of reactor [PDF]

open access: yesJournal of Radioanalytical and Nuclear Chemistry, 2010
The neutron temperature is a characteristic parameter in irradiation channels of reactor. For nuclides which have resonances in the thermal neutron energy range, their Westcott g-factors are different from unity. The values of g-factors and cross-sections of (n, γ) reaction of these nuclides are temperature dependence.
T. Hung
openaire   +4 more sources

Effect of splitting of the neutron and proton effective mass on nuclear symmetry energy at finite temperature [PDF]

open access: yes, 2010
We present the temperature and density dependence of symmetry energy for nuclear matter at finite temperature based on the approach of the thermodynamics with Skyrme energy density functional. We first classify the Skyrme interactions into 7 groups according to the range of neutron and proton effective mass in neutron matter limit(99.99 per cent ...
Bethe   +24 more
arxiv   +3 more sources

Emission of neutrino-antineutrino pairs by hadronic bremsstrahlung processes

open access: yesEPJ Web of Conferences, 2016
We review our recent calculations of neutrino-antineutrino pair production from bremsstrahlung processes in hadronic collisions at temperature and densities relevant for core-collapse supernovae. We focus on neutron-neutron and neutron-α collisions.
Bacca Sonia, Sharma Rishi, Schwenk Achim
doaj   +2 more sources

Ethane as a Neutron Moderator at Cryogenic Temperatures [PDF]

open access: yesEPJ Web of Conferences
The study’s objective is to examine the neutron temperature response, using liquid and solid ethane at various cryogenic temperatures to evaluate the effectiveness of ethane as a cold neutron moderator in compact moderator systems.
El Barbari Monia   +7 more
doaj   +3 more sources

Single-shot laser-driven neutron resonance spectroscopy for temperature profiling [PDF]

open access: yesNature Communications
The temperature measurement of material inside of an object is one of the key technologies for control of dynamical processes. For this purpose, various techniques such as laser-based thermography and phase-contrast imaging thermography have been studied.
Zechen Lan   +14 more
doaj   +2 more sources

Determining the relaxation time from a temperature-dependent scan of the neutron spin-echo signal amplitude [PDF]

open access: yesEPJ Web of Conferences, 2022
Temperature-dependent scans of the neutron scattering intensity are commonly employed in high energy-resolution quasielastic measurements. Besides serving as a useful diagnostic tool for identifying the temperature range that could give rise to a ...
Mamontov Eugene, Zolnierczuk Piotr
doaj   +1 more source

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