Results 1 to 10 of about 3,916 (254)
Neutron features at the UPM neutronics hall [PDF]
The neutronics hall of the Nuclear Engineering Department at the Polytechnical University of Madrid has been characterized. The neutron spectra and the ambient dose equivalent produced by an (241)AmBe source were measured at various source-to-detector distances on the new bench.
Vega-Carrillo, Héctor René +4 more
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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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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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14 pages, 4 figures, minor correction, accepted for publication in Phys.
Ando, Shung-ichi, Kubodera, Kuniharu
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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 ...
Dexheimer, V., Schramm, S., Stoecker, H.
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VALIDATION OF SERPENT FOR FUSION NEUTRONICS ANALYSIS AT JET [PDF]
Fusion neutronics analysis before and after experiments at JET is traditionally performed using Monte Carlo particle transport code Monte Carlo N-Particle.
Snoj Luka +5 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
Vogt R., Randrup J.
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Bouncing neutrons and the neutron centrifuge [PDF]
The recent observation of the quantum state of the neutron bouncing freely under gravity allows some novel experiments. A method of purifying the ground state is given, and possible applications to the measurement of the electric dipole moment of the neutron and the short distance behaviour of gravity are discussed.
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Neutron skins and neutron stars [PDF]
The neutron-skin thickness of heavy nuclei provides a fundamental link to the equation of state of neutron-rich matter, and hence to the properties of neutron stars. The Lead Radius Experiment ("PREX") at Jefferson Laboratory has recently provided the first model-independence evidence on the existence of a neutron-rich skin in 208Pb.
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