Počet záznamů: 1  

Assessing the near threshold cross section of the O-17(n, alpha)C-14 reaction by means of the Trojan horse method

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    0474512 - ÚJF 2018 RIV US eng J - Článek v odborném periodiku
    Guardo, G. L. - Spitaleri, C. - Lamia, L. - Gulino, M. - La Cognata, M. - Tang, X. - deBoer, R. - Fang, X. - Goldberg, V. - Mrázek, Jaromír - Mukhamedzhanov, A. - Notani, M. - Pizzone, R. G. - Rapisarda, G. G. - Sergi, M. L. - Wiescher, M.
    Assessing the near threshold cross section of the O-17(n, alpha)C-14 reaction by means of the Trojan horse method.
    Physical Review C. Roč. 95, č. 2 (2017), č. článku 025807. ISSN 2469-9985. E-ISSN 2469-9993
    Grant CEP: GA MŠMT(CZ) LH11001; GA ČR GAP203/10/0310
    Institucionální podpora: RVO:61389005
    Klíčová slova: nuclear reactions * C-14 * Trojan Horse Method
    Obor OECD: Astronomy (including astrophysics,space science)
    Impakt faktor: 3.304, rok: 2017

    The study of the O-17(n, a)C-14 reaction has been performed by means of the Trojan horse method (THM) applied to the quasifree H-2(O-17, alpha C-14)H-1 reaction induced at a beam energy of 43.5 MeV. The THM allowed us to study the 8121-keV O-18* resonant level, for which the previous THM investigation pointed out the ability of the method to overcome the centrifugal barrier suppression effects in the entrance channel. Here, in view of the developments of themethod for resonant reactions, the detailed analysis of the performed experiment will be discussed, focusing on the extraction of the 8121-keV resonance strength for which no information is present in scientific literature. Moreover, the experimental results clearly show the excitation of the subthreshold level centered at -6 keV in the center-of-mass system, which is fundamental to determine the O-17(n, a)C-14 reaction rate of astrophysical interest. Finally, a new recommended reaction rate is presented for future astrophysical application.
    Trvalý link: http://hdl.handle.net/11104/0271555

     
     
Počet záznamů: 1  

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