Results 11 to 20 of about 275,067 (294)
Neutron-mirror neutron mixing and neutron stars [PDF]
AbstractThe oscillation of neutron n into mirror neutron $$n'$$ n ′ , its mass degenerate partner from dark mirror sector, can gradually transform the neutron stars into the mixed stars consisting in part of mirror dark matter. In quark stars $$n-n'$$
Berezhiani Z.+3 more
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14 pages, 4 figures, minor correction, accepted for publication in Phys.
Shung-ichi Ando, Kuniharu Kubodera
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Neutron–Mirror-Neutron Oscillation and Neutron Star Cooling
It was pointed out in a recent paper that the observed cooling rate of old, cold neutron stars (NS) can provide an upper limit on the transition rate of neutron to mirror neutron ($n-n'$). This limit is so stringent that it would preclude any discovery of $n \to n'$ oscillation in the current round of terrestrial searches for the process.
Itzhak Goldman+3 more
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PROTO-NEUTRON AND NEUTRON STARS [PDF]
Prepared for International Workshop on Astronomy and Relativistic Astrophysics (IWARA 2007), Joao Pessoa, Brazil, 3-6 Oct ...
Horst Stoecker+2 more
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The neutron is largely spherical and incompressible in atomic nuclei. These two properties are however challenged in the extreme pressure environment of a neutron star. Our variational computation within the Cornell model of Coulomb gauge QCD shows that the neutron (and also the Δ3/2 baryon) can adopt cubic symmetry at an energy cost of about 150 MeV.
FELIPE J. LLANES-ESTRADA+1 more
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Search for Neutron-to-Hidden-Neutron Oscillations in an Ultracold Neutron Beam
Models that postulate the existence of hidden sectors address contemporary questions, such as the source of baryogenesis and the nature of dark matter. Among the possible mixing processes, neutron-to-hidden-neutron oscillations have been repeatedly tested with ultra-cold neutron storage and passing-through-wall experiments in the range of small ($δm<
G. Ban+13 more
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Neutron-neutron and neutron-photon correlations withFREYA [PDF]
For many years, the state of the art for modeling fission in radiation transport codes has involved sampling from average distributions. However, in a true fission event, the energies, momenta and multiplicities of emitted particles are correlated. The FREYA (Fission Reaction Event Yield Algorithm) code generates complete fission events. Event-by-event
Jørgen Randrup+2 more
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From neutron skins and neutron matter to the neutron star crust
7 pages, 6 figures, 1 tables; Accepted for publication in Physics Letters ...
William G. Newton+3 more
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MTS-6 detectors calibration by using 239Pu-Be neutron source
Background: Thermoluminescent detectors, type MTS-6, containing isotope 6Li (lithium) are sensitive in the range of thermal neutron energy; the 239Pu-Be (plutonium-and-beryllium) source emits neutrons in the energy range from 1 to 11 MeV. These seemingly
Małgorzata Wrzesień+2 more
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