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Prog. Theor. Phys. Vol. 67 No. 1 (1982) pp. 254-270

[ Full Text PDF : FREE ACCESS (771K) ]

Study on Characteristics of π0-Condensate in Neutron Matter

— Effective Nucleon Mass and Role of Non-Tensor Force —

Tatsuyuki Takatsuka, Yasumichi Saito* and Jun Hiura

College of Humanities and Social Sciences, Iwate University, Morioka 020
*Faculty of Education, Iwate University, Morioka 020

(Received July 13, 1981)

Abstract:

By suitably constructing the effective Hamiltonian to make calculations tractable and transparent, the characteristics of the developed π0-condensed phase in neutron matter are investigated. It is found that the effective mass of nucleon becomes remarkably larger than that in the normal phase. The cause is attributed to the structure-change of the Fermi gas nature. With attention to a particular spin-ordering of the phase, the role of non-tensor force composed mainly of central one is discussed. Strength of its repulsion in triplet-odd states is found to affect the nucleon effective mass, the onset density and the stability of the phase.


URL : http://ptp.ipap.jp/link?PTP/67/254/
DOI : 10.1143/PTP.67.254

[ Full Text PDF : FREE ACCESS (771K) ] Citation:

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Citing Article(s) :

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  3. Progress of Theoretical Physics Vol. 71 No. 3 (1984) pp. 569-584 :
    Quark Spin-Flavor Layered Structure of High Density Matter with Condensed π0 Field in Chiral Bag Model
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  4. Progress of Theoretical Physics Vol. 72 No. 2 (1984) pp. 252-265 :
    Proton Mixing in π0-Condensed Phase of Neutron Star Matter
    Tatsuyuki Takatsuka
  5. Progress of Theoretical Physics Vol. 72 No. 3 (1984) pp. 563-581 :
    One-Gluon-Exchange Effects and Stability of the Quark Alternating Layer Spin-Flavor Structure in High-Density Nuclear Matter
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  6. Progress of Theoretical Physics Vol. 73 No. 3 (1985) pp. 683-702 :
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  7. Progress of Theoretical Physics Vol. 74 No. 4 (1985) pp. 725-735 :
    Investigation of Pion-Like Collective Excitations in Neutron Matter through Boson Expansion Techniques
    C. A. de Sousa
  8. Progress of Theoretical Physics Vol. 77 No. 2 (1987) pp. 362-375 :
    π0 Condensation in Dense Symmetric Nuclear Matter at Finite Temperature
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  9. Progress of Theoretical Physics Vol. 78 No. 3 (1987) pp. 516-520 :
    Pion-Condensed Neutron Star and Supernova 1987A
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  10. Progress of Theoretical Physics Vol. 78 No. 6 (1987) pp. 1405-1427 :
    On the Existence of Combined Condensation of Neutral and Charged Pions in Neutron Matter
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  11. Progress of Theoretical Physics Vol. 79 No. 2 (1988) pp. 268-273 :
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  12. Progress of Theoretical Physics Vol. 82 No. 5 (1989) pp. 945-964 :
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    Tatsuyuki Takatsuka and Ryozo Tamagaki
  13. Progress of Theoretical Physics Vol. 83 No. 3 (1990) pp. 499-521 :
    Static and Dynamical Properties of Neutron Stars with Combined π0-πc Condensation
    Takumi Muto and Toshitaka Tatsumi
  14. Progress of Theoretical Physics Vol. 86 No. 1 (1991) pp. 57-71 :
    Phase Transition of Hot Neutron Matter to π0-Condensed State
    Mariko Takahara, Tatsuyuki Takatsuka and Katsuhiko Sato
  15. Progress of Theoretical Physics Vol. 86 No. 4 (1991) pp. 853-866 :
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  16. Progress of Theoretical Physics Vol. 94 No. 3 (1995) pp. 457-461 :
    Nucleon Superfluidity in Kaon-Condensed Neutron Stars
    Tatsuyuki Takatsuka and Ryozo Tamagaki
  17. 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
  18. Progress of Theoretical Physics Supplement No.112 (1993) pp. 1-25 :
    Chapter I. Overview
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  19. Progress of Theoretical Physics Supplement No.112 (1993) pp. 123-157 :
    Chapter V. Toward Realistic Treatment of Neutral Pion-Condensed State
    Teiji Kunihiro, Tatsuyuki Takatsuka, Ryozo Tamagaki and Toshitaka Tatsumi

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