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Indirect techniques in nuclear astrophysics – Asymptotic Normalization Coefficient and Trojan Horse,

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    0032239 - ÚJF 2006 RIV IT eng E - Electronic Document
    Mukhamedzhanov, A. M. - Burjan, Václav - Kroha, Václav - Tumino, A.
    Indirect techniques in nuclear astrophysics – Asymptotic Normalization Coefficient and Trojan Horse,.
    [Nepřímé metody v jaderné astrofyzice.]
    [textový dokument]. - European Phys.Journal A direct (2006): Societa Italiana di Fisica/Springer Verlag, 2006, 327 kB
    R&D Projects: GA AV ČR KSK1048102; GA MŠMT ME 643; GA ČR GA202/05/0302
    Institutional research plan: CEZ:AV0Z10480505
    Keywords : hydrostatic stellar nucleosynthesis * spectroscopic factors * asymptotic normalization coefficients
    Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
    DOI: https://doi.org/10.1140/epja/i2006-08-032-7

    Owing to the presence of the Coulomb barrier at astrophysically relevant kinetic energies it is very difficult, or sometimes impossible, to measure astrophysical reaction rates in the laboratory. That is why different indirect techniques are being used along with direct measurements. Here we address two important indirect techniques, the asymptotic normalization coeficient (ANC) and the Trojan Horse (TH)methods. We discuss the application of the ANC Technique for calculation of the astrophysical prosesses in the presence of subthreshold bound states , in particular, two different mechanisms are discussed: direct capture to the subrhreshold state and capture to the low-lying bound states through the subthreshold state, which plays the role of the subthreshold resonance.

    Je diskutováno použití metody ANC pro výpočty astrofyzikálních faktorů v přítomnosti podprahově vázaných stavů. Metoda Trojského koně je unikátní způsob, jak měřit astrofyzikální reakce s přeskupením částic až do oblasti astrofyzikálně významných energií.

    Permanent Link: http://hdl.handle.net/11104/0132801

     
     
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