Relativistic Mean-Field Approximation with Density-Dependent Screening Meson Masses in Nuclear Matter
2003 ◽
Vol 12
(04)
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pp. 543-554
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The Debye screening masses of the σ, ω and neutral ρ mesons and the photon are calculated in the relativistic mean-field approximation. As the density of the nucleon increases, all the screening masses of mesons increase. A different result with Brown–Rho scaling is shown, which implies a reduction in the mass of all the mesons in the nuclear matter, except the pion. Replacing the masses of the mesons with their corresponding screening masses in the Walecka-1 model, five saturation properties of the nuclear matter are fixed reasonably, and then a density-dependent relativistic mean-field model is proposed without introducing the nonlinear self-coupling terms of mesons.
2011 ◽
Vol 20
(09)
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pp. 1983-2010
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2007 ◽
Vol 781
(3-4)
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pp. 448-458
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2007 ◽
Vol 16
(07n08)
◽
pp. 2400-2406
Keyword(s):
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2008 ◽
Vol 799
(1-4)
◽
pp. 181-209
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Keyword(s):
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