Results 1 to 10 of about 845,244 (274)

Neutron-Neutron Fusion [PDF]

Physics 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, Ando, Ando, Ando, Beane, Beane, Bedaque, Bedaque, Bedaque, Butler, Butler, Butler, Butler, Chen, Chen, Chen, Crawford, de Téramond, Detmold, Eidelman, Fukugita, Gardestig, González Trotter, Hardy, Howell, Huhn, Kammel, Kaplan, Kaplan, Kong, Kong, Kong, Kubodera, Kubodera, Kuniharu Kubodera, Lensky, Miller, Nakamura, Nakamura, Nakamura, Park, Park, Park, Park, Phillips, Phillips, Rho, Serebrow, Shung-ichi Ando, Sirlin, Towner, Weinberg, Weinberg, Šlaus   +53 more
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Neutron-mirror neutron mixing and neutron stars [PDF]

The 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., Biondi R., Mannarelli M., Tonelli F.   +3 more
openaire   +3 more sources

Neutron–Mirror-Neutron Oscillation and Neutron Star Cooling

Physical 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, Rabindra N. Mohapatra, Shmuel Nussinov, Yongchao Zhang   +3 more
openaire   +3 more sources

PROTO-NEUTRON AND NEUTRON STARS [PDF]

Astronomy 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

Scaler mode of the Auger Observatory and Sunspots [PDF]

, 2012
Recent data from the Auger Observatory on low energy secondary cosmic ray particles are analyzed to study temporal correlations together with data on the daily sunspot numbers and neutron monitor data.
Auger Scaler Data Online, Bertou, Bray, Carlos A. García Canal, Carlos Hojvat, Hamilton, Jensen, MacDonald, Neutron Monitor APTY, Neutron Monitor Database, Neutron Monitor JUNG, Pierre Auger Observatory Collaboration, Press, SIDC-Team, Storini, Tatiana Tarutina   +15 more
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Neutron-neutron and neutron-photon correlations withFREYA [PDF]

EPJ 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

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

, 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, C. J. Pethick, D. V. Shetty, D. J. Morrissey, E. Martin, G. A. Souliotis, G. Chubarian, H. Geissel, L. Trache, M. Veselsky, R. F. Casten, S. J. Yennello, V. Borrel   +12 more
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Relativistic mean-field study of neutron-rich nuclei [PDF]

, 2003
A relativistic mean-field model is used to study the ground-state properties of neutron-rich nuclei. Nonlinear isoscalar-isovector terms, unconstrained by present day phenomenology, are added to the model Lagrangian in order to modify the poorly known ...
A.T. Kruppa, B. G. Todd, B.D. Serot, B.D. Serot, B.Q. Chen, C.J. Horowitz, C.J. Horowitz, C.J. Horowitz, C.J. Horowitz, David DeMille, E.K. Warburton, G. Audi, G. Fricke, G.A. Lalazissis, G.A. Lalazissis, G.A. Lalazissis, H. de Vries, H. Müller, H. Sakurai, J. Dobaczewski, J. Piekarewicz, J. Piekarewicz, J. Piekarewicz, J. Piekarewicz, M.J. Ramsey-Musolf, P. Slane, R.J. Furnstahl, S. Karataglidis, S.J. Pollock, T. Otsuka, Xiong Xiaxing, Xiong Xiaxing, Zhongzhou Ren   +32 more
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Neutron lifetime puzzle and neutron–mirror neutron oscillation [PDF]

The European Physical Journal C, 2019
The discrepancy between the neutron lifetimes measured in the beam and trap experiments can be explained via the neutron $n$ conversion into mirror neutron $n'$, its dark partner from parallel mirror sector, provided that $n$ and $n'$ have a tiny mass splitting order $10^{-7}$ eV.
openaire   +4 more sources

CUBIC NEUTRONS [PDF]

Modern Physics Letters A, 2012
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, GASPAR MORENO NAVARRO   +1 more
openaire   +4 more sources