Role of the effective nucleon mass for pion condensation in nuclear matter

1978 ◽  
Vol 77 (1) ◽  
pp. 37-40 ◽  
Author(s):  
Y. Futami ◽  
H. Toki ◽  
W. Weise
Keyword(s):  
Nuclear Matter ◽  
Nucleon Mass ◽  
Pion Condensation

scholarly journals Constraining Dense Matter Physics Using f-Mode Oscillations in Neutron Stars

Physics ◽  
2021 ◽  
Vol 3 (2) ◽  
pp. 302-319
Author(s):  
Sukrit Jaiswal ◽  
Debarati Chatterjee
Keyword(s):  
Neutron Stars ◽  
Nuclear Matter ◽  
Parameter Space ◽  
Dominant Role ◽  
Dense Matter ◽  
Nucleon Mass ◽  
Nuclear Parameter ◽  
Empirical Relations ◽  
Dense Nuclear Matter

In this paper, an investigation of the role of nuclear saturation parameters on f-mode oscillations in neutron stars is performed within the Cowling approximation. It is found that the uncertainty in the effective nucleon mass plays a dominant role in controlling the f-mode frequencies. The effect of the uncertainties in saturation parameters on previously-proposed empirical relations of the frequencies with astrophysical observables relevant for asteroseismology are also investigated. These results can serve as an important tool for constraining the nuclear parameter space and understand the behaviour of dense nuclear matter from the future detection of f-modes.

THE ROLE OF THE NUCLEAR MATTER COMPRESSION MODULUS IN NEUTRON STARS

2004 ◽  
Vol 13 (07) ◽  
pp. 1519-1524 ◽  
Author(s):  
VERÔNICA A. DEXHEIMER ◽  
CÉSAR A. Z. VASCONCELLOS ◽  
MOISÉS RAZEIRA ◽  
MANFRED DILLIG
Keyword(s):  
Neutron Stars ◽  
Nuclear Matter ◽  
Body Problem ◽  
Mean Field Theory ◽  
Mean Field ◽  
Compression Modulus ◽  
Baryon Number ◽  
Many Body ◽  
Relativistic Mean Field

For the nuclear many body problem at high densities, formulated in the framework of a relativistic mean-field theory, we investigate in detail the compression modulus of nuclear matter as a function of the effective nucleon mass. We include consistently in our modelling chemical equilibrium as well as baryon number and electric charge conservation and investigate properties of neutron stars. Among other predictions we focus on the dependence of the maximum mass of a sequence of neutron stars as a function of the compression modulus and the nucleon effective mass.

Pion condensation in symmetric nuclear matter

1991 ◽  
Vol 17 (6) ◽  
pp. 887-900 ◽  
Author(s):  
T Shamsunnahar ◽  
S Saha ◽  
K Kabir ◽  
L M Nath
Keyword(s):  
Nuclear Matter ◽  
Symmetric Nuclear Matter ◽  
Pion Condensation

Role of relativistic effects and three-body forces in nuclear matter properties

2019 ◽  
Vol 99 (2) ◽  
Author(s):  
S. Heidari ◽  
S. Zaryouni ◽  
H. R. Moshfegh ◽  
S. Goudarzi
Keyword(s):  
Nuclear Matter ◽  
Relativistic Effects ◽  
Body Forces ◽  
Three Body

scholarly journals Role of the S-Wave Pion-Nucleon Interaction in Combined Pion Condensation

1980 ◽  
Vol 63 (6) ◽  
pp. 2123-2126 ◽  
Author(s):  
S. Kurihara ◽  
A. Suzuki ◽  
Y. Takahashi ◽  
Y. Futami
Keyword(s):  
Nucleon Interaction ◽  
S Wave ◽  
Pion Condensation ◽  
Pion Nucleon

scholarly journals Role of hyperon negative energy sea in nuclear matter

1995 ◽  
Vol 361 (1-4) ◽  
pp. 5-9 ◽  
Author(s):  
P.J. Ellis ◽  
S.B. Parendo ◽  
M. Prakash
Keyword(s):  
Nuclear Matter ◽  
Negative Energy

scholarly journals Nuclear matter within a dilatation-invariant parity doublet model: The role of the tetraquark at nonzero density

2011 ◽  
Vol 872 (1) ◽  
pp. 13-24 ◽  
Author(s):  
Susanna Gallas ◽  
Francesco Giacosa ◽  
Giuseppe Pagliara
Keyword(s):  
Nuclear Matter ◽  
Parity Doublet ◽  
Doublet Model
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