Physics – Nuclear Physics
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985nupha.442..163a&link_type=abstract
Nuclear Physics A, Volume 442, Issue 1, p. 163-188.
Physics
Nuclear Physics
63
Scientific paper
The possibility of neutron triplet pairing and superfluidity in neutron star matter is investigated, and the energy gap and corresponding critical temperature is calculated or estimated as a function of Fermi momentum or density. The calculations are performed for a ``one-pion-exchange gaussian'' potential, and compared with the results for neutron and proton singlet pairing and superfluidity calculated earlier.
The results indicate that neutron superfluidity, corresponding specifically to 3P2 state pairing, may exist in a high-density shell in the nuclear-matter region of a neutron star, i.e. for 1.6 × 1014g/cm3 < ρ < 1.4 × 1015g/cm3, and the maximum self-consistent energy gap is Δ01kF ~ 0.6 MeV and Δ03(kF) ~ 0.1 MeV for an effective mass m* ~ 0.75 and kF ~ 2.1 fm-1, i.e. for a mas ϱ ~ 5.2 × 1014g/cm3. For m* = 1.0 we get correspondingly Δ01(kF) ~ 3.3 MeV and Δ03(kF) ~ 0.6 MeV for kF ~ 2.2 fm-1.
Amundsen Lasse
Østgaard Erlend
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