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    NázovThe effect of inclusion of delta resonances in relativistic mean-field model with scaled hadron masses and coupling constants
    Aut.údajeK. A. Maslov, E. E. Kolomeitsev, D. N. Voskresensky
    Autor Maslov Konstantin A. (1%)
    Spoluautori Kolomeitsev Evgeni E. 1970- (98%) UMBFP06 - Katedra fyziky
    Voskresensky Dmitri (1%)
    Zdroj.dok. Journal of Physics: Conference Series. Vol. 798 (2017), pp. 1-5. - Bristol : IOP Publishing, 2017 ; International conference on particle physics and astrophysics ICPPA 2017 medzinárodná konferencia
    Kľúč.slová astrofyzika - astrophysics   neutron stars   relativita - relativity  
    Jazyk dok.angličtina
    KrajinaVeľká Británia
    Systematika 53
    Anotácia© Published under licence by IOP Publishing Ltd.Knowledge of the equation of state of the baryon matter plays a decisive role in the description of neutron stars. With an increase of the baryon density the filling of Fermi seas of hyperons and Δ isobars becomes possible. Their inclusion into standard relativistic mean-field models results in a strong softening of the equation of state and a lowering of the maximum neutron star mass below the measured values. We extend a relativistic mean-field model with scaled hadron masses and coupling constants developed in our previous works and take into account now not only hyperons but also the Δ isobars. We analyze available empirical information to put constraints on coupling constants of Δs to mesonic mean fields. We show that the resulting equation of state satisfies majority of presently known experimental constraints.
    Kategória publikačnej činnosti AFC
    Číslo archívnej kópie39068
    Katal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Báza dátxpca - PUBLIKAČNÁ ČINNOSŤ
    OdkazyPERIODIKÁ-Súborný záznam periodika
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