Multiple Production of Pions in Nucleon-Nucleon Collisions at Cosmotron Energies

1953 ◽  
Vol 92 (2) ◽  
pp. 452-453 ◽  
Author(s):  
E. Fermi
Keyword(s):  
Nucleon Nucleon ◽  
Multiple Production

Evidence for the Multiple Production of Mesons in a Single Nucleon-Nucleon Collision

1950 ◽  
Vol 80 (6) ◽  
pp. 970-973 ◽  
Author(s):  
J. J. Lord ◽  
Joseph Fainberg ◽  
Marcel Schein
Keyword(s):  
Nucleon Nucleon ◽  
Multiple Production ◽  
Single Nucleon ◽  
Nucleon Collision

Evidence for the multiple production of mesons in a single nucleon-nucleon collision

1950 ◽  
Vol 7 (5) ◽  
pp. 774-781 ◽  
Author(s):  
J. J. Lord ◽  
J. Fainberg ◽  
M. Schein
Keyword(s):  
Nucleon Nucleon ◽  
Multiple Production ◽  
Single Nucleon ◽  
Nucleon Collision

scholarly journals Transport Coefficients of Hyperonic Neutron Star Cores

Universe ◽  
2021 ◽  
Vol 7 (6) ◽  
pp. 203
Author(s):  
Peter Shternin ◽  
Isaac Vidaña
Keyword(s):  
Thermal Conductivity ◽  
Neutron Star ◽  
Shear Viscosity ◽  
Transport Coefficients ◽  
Dense Matter ◽  
Baryon Number ◽  
Nucleon Nucleon ◽  
Total Thermal Conductivity ◽  
Nucleon Force ◽  
Density Region

We consider transport properties of the hypernuclear matter in neutron star cores. In particular, we calculate the thermal conductivity, the shear viscosity, and the momentum transfer rates for npΣ−Λeμ composition of dense matter in β–equilibrium for baryon number densities in the range 0.1–1 fm−3. The calculations are based on baryon interactions treated within the framework of the non-relativistic Brueckner-Hartree-Fock theory. Bare nucleon-nucleon (NN) interactions are described by the Argonne v18 phenomenological potential supplemented with the Urbana IX three-nucleon force. Nucleon-hyperon (NY) and hyperon-hyperon (YY) interactions are based on the NSC97e and NSC97a models of the Nijmegen group. We find that the baryon contribution to transport coefficients is dominated by the neutron one as in the case of neutron star cores containing only nucleons. In particular, we find that neutrons dominate the total thermal conductivity over the whole range of densities explored and that, due to the onset of Σ− which leads to the deleptonization of the neutron star core, they dominate also the shear viscosity in the high density region, in contrast with the pure nucleonic case where the lepton contribution is always the dominant one.

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