Results 11 to 20 of about 634,574 (277)

Neutron-Neutron Fusion [PDF]

open access: yesPhysics Letters B, 2005
The neutron-neutron fusion process, $nn\to de\nu$, at very low neutron energies is studied in the framework of pionless effective field theory that incorporates dibaryon fields.
Ando   +53 more
core   +2 more sources

Neutron-mirror neutron mixing and neutron stars [PDF]

open access: yesThe European Physical Journal C, 2021
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
openaire   +3 more sources

Neutron–Mirror-Neutron Oscillation and Neutron Star Cooling

open access: yesPhysical Review Letters, 2022
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
openaire   +3 more sources

PROTO-NEUTRON AND NEUTRON STARS [PDF]

open access: yesAstronomy and Relativistic Astrophysics, 2010
Prepared for International Workshop on Astronomy and Relativistic Astrophysics (IWARA 2007), Joao Pessoa, Brazil, 3-6 Oct ...
Dexheimer, V., Schramm, S., Stoecker, H.
openaire   +2 more sources

Neutron-neutron and neutron-photon correlations withFREYA [PDF]

open access: yesEPJ Web of Conferences, 2017
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.
openaire   +2 more sources

Comparison and Correction of Thermo-Luminescent Responses in Different Neutron Fields [PDF]

open access: yesIranian Journal of Medical Physics, 2021
Introduction: Neutron dosimetry is a challenging subject in radiation protection. Responses of neutron dosimeters mostly depend on the neutron energy spectrum.
Samaneh Baradaran   +2 more
doaj   +1 more source

Enhanced Production of Neutron-Rich Rare Isotopes in Peripheral Collisions at Fermi Energies [PDF]

open access: yes, 2003
A large enhancement in the production of neutron-rich projectile residues is observed in the reactions of a 25 MeV/nucleon 86Kr beam with the neutron rich 124Sn and 64Ni targets relative to the predictions of the EPAX parametrization of high-energy ...
A. Keksis   +12 more
core   +3 more sources

Phonons and Thermal Expansion Behavior of NiSi and NiGe

open access: yesFrontiers in Chemistry, 2018
We have carried out first principles calculations of the vibrational and thermodynamic behavior in NiSi and isostructural compound NiGe. Phonon density of states has also been measured in NiSi using inelastic neutron scattering techniques.
Prabhatasree Goel   +8 more
doaj   +1 more source

Recent Progress in X-ray and Neutron Phase Imaging with Gratings

open access: yesQuantum Beam Science, 2020
Under the JST-ERATO project in progress to develop X-ray and neutron phase-imaging methods together, recent achievements have been selected and reviewed after describing the merit and the principle of the phase imaging method.
Atsushi Momose   +6 more
doaj   +1 more source

High-Efficiency Resonant RF Spin Rotator with Broad Phase Space Acceptance for Pulsed Polarized Cold Neutron Beams [PDF]

open access: yes, 2007
We have developed a radio-frequency resonant spin rotator to reverse the neutron polarization in a 9.5 cm x 9.5 cm pulsed cold neutron beam with high efficiency over a broad cold neutron energy range. The effect of the spin reversal by the rotator on the
A. Abragam   +40 more
core   +6 more sources

Home - About - Disclaimer - Privacy