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Neutrino emission due to Cooper-pair recombination in neutron stars reexamined

  1. NázovNeutrino emission due to Cooper-pair recombination in neutron stars reexamined
    Aut.údajeEvgeni E. Kolomeitsev, D. N. Voskresensky
    Autor Kolomeitsev Evgeni E. 1970- (50%) UMBFP06 - Katedra fyziky
    Spoluautori Voskresensky Dmitri (50%)
    Zdroj.dok. Physical Review C. Vol. 77, no. 6 (2008), pp. [1-12]. - Maryland : American Physical Society, 2008
    Kľúč.slová fyzika - physics   jadrová fyzika   nuclear physics   particles  
    Jazyk dok.angličtina
    KrajinaSpojené štáty
    Systematika 539.1
    AnotáciaNeutrino emission in processes of breaking and formation of neutron and proton Cooper pairs is calculated within the Larkin-Migdal-Leggett approach for a superfluid Fermi liquid. We demonstrate explicitly that the Fermi-liquid renormalization respects the Ward identity and ensures the weak vector-current conservation. The systematic expansion of the emissivities for small temperatures and nucleon Fermi velocity v(F,i),i=n,p, is performed. Both neutron and proton processes are mainly controlled by the axial-vector current contributions, which are not strongly changed in the superfluid matter. Thus, compared to earlier calculations, the total emissivity of processes on neutrons paired in the 1S(0) state is suppressed by a factor of similar or equal to(0.9-1.2)v(F,n)(2). A similar suppression factor (similar to v(F,p)(2)) arises for processes on protons.
    Kategória publikačnej činnosti ADC
    Číslo archívnej kópie26699
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    Katal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
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Počet záznamov: 1  

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