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Prog. Theor. Phys. Vol. 79 No. 2 (1988) pp. 461-479

[ Full Text PDF : FREE ACCESS (877K) ]

Extra Neutrino Emissivity of Neutron Stars under the Combined Condensation of Neutral and Charged Pions

Takumi Muto and Toshitaka Tatsumi

Department of Physics, Kyoto University, Kyoto 606

(Received September 14, 1987)

Abstract:

Extra neutrino emissivity of neutron stars under the combined condensation of neutral and charged pions (CPC), which we call quasi-particle URCA process, is examined in a realistic approach. Here the isobar Δ(1232) degrees of freedom, baryon-baryon short-range correlations and p-wave form factors are considered consistently in the π-baryon and weak interaction vertices. Each role of neutral and charged pion condensate played in this process is clarified and a peculiar role of neutral pion condensate is emphasized. Our results show that quasi-particle URCA process is still dominant over other standard processes, e.g., the modified URCA process, while the emissivity is about one order of magnitude less than the one for the pure charged pion condensed case within a realistic approach.


URL : http://ptp.ipap.jp/link?PTP/79/461/
DOI : 10.1143/PTP.79.461

[ Full Text PDF : FREE ACCESS (877K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 79 No. 2 (1988) pp. 274-279 :
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  2. Progress of Theoretical Physics Vol. 80 No. 1 (1988) pp. 22-27 :
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  3. Progress of Theoretical Physics Vol. 80 No. 1 (1988) pp. 28-33 :
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  4. Progress of Theoretical Physics Vol. 82 No. 5 (1989) pp. 945-964 :
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    Tatsuyuki Takatsuka and Ryozo Tamagaki
  5. Progress of Theoretical Physics Vol. 83 No. 3 (1990) pp. 499-521 :
    Static and Dynamical Properties of Neutron Stars with Combined π0-πc Condensation
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  6. Progress of Theoretical Physics Vol. 86 No. 1 (1991) pp. 57-71 :
    Phase Transition of Hot Neutron Matter to π0-Condensed State
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  7. Progress of Theoretical Physics Vol. 98 No. 2 (1997) pp. 393-417 :
    Quasi-Neutron 3 P2-Dominant Superfluidity under π0 Condensation with Δ Isobar
    Tatsuyuki Takatsuka and Ryozo Tamagaki
  8. Progress of Theoretical Physics Vol. 112 No. 1 (2004) pp. 37-72 :
    Baryon Superfluidity and Neutrino Emissivity of Neutron Stars
    Tatsuyuki Takatsuka and Ryozo Tamagaki
  9. Progress of Theoretical Physics Vol. 116 No. 3 (2006) pp. 573-599 :
    Baryonic 3 P2-Dominant Superfluidity under Combined Pion Condensation with Δ Isobar. I
    Ryozo Tamagaki and Tatsuyuki Takatsuka
  10. Progress of Theoretical Physics Supplement No.112 (1993) pp. 1-25 :
    Chapter I. Overview
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  11. Progress of Theoretical Physics Supplement No.112 (1993) pp. 159-196 :
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  12. Progress of Theoretical Physics Supplement No.112 (1993) pp. 221-275 :
    Chapter VIII. Implications of Various Hadron Phases to Neutron Star Phenomena
    Takumi Muto, Tatsuyuki Takatsuka, Ryozo Tamagaki and Toshitaka Tatsumi
  13. Progress of Theoretical Physics Supplement No.153 (2004) pp. 174-189 :
    Meson Condensations in High-Density Matter
    Takumi Muto

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