Počet záznamů: 1
Determination of the astrophysical factor of the .sup.3./sup.He(α, γ).sup.7./sup.Be down to zero energy using the asymptotic normalization coefficient method
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SYSNO ASEP 0577228 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Determination of the astrophysical factor of the 3He(α, γ)7Be down to zero energy using the asymptotic normalization coefficient method Tvůrce(i) La Cognata, M. (IT)
Kiss, G. G. (HU)
Yarmukhamedov, R. (UZ)
Tursunmakhatov, K. I. (UZ)
Wiedenhover, I. (US)
Baby, L. T. (US)
Cherubini, S. (IT)
Cvetinovic, A. (SI)
D'Agata, Giuseppe (UJF-V) ORCID, RID
Figuera, P. (IT)
Guardo, G. L. (IT)
Gulino, M. (IT)
Hayakawa, S. (JP)
Indelicato, I. (IT)
Lamia, L. (IT)
Lattuada, M. (IT)
Mudo, F. (IT)
Palmerini, S. (IT)
Pizzone, R. G. (IT)
Rapisarda, G. G. (IT)
Romano, S. (IT)
Sergi, M. L. (IT)
Sparta, R. (IT)
Spitaleri, C. (IT)
Trippella, O. (IT)
Tumino, A. (IT)
Anastasiou, M. (US)
Kuvin, S. A. (US)
Rijal, N. (US)
Schmidt, B. (US)
Igamov, S. B. (UZ)
Sakuta, S. B. (RU)
Fulop, Zs. (HU)
Gyurky, G. (HU)
Szucs, T. (HU)
Halasz, Z. (HU)
Somorjai, E. (HU)
Hons, Zdeněk (UJF-V) RID, ORCID
Mrázek, Jaromír (UJF-V) RID, ORCID, SAI
Tribble, R. E. (US)
Mukhamedzhanov, A. M. (US)Celkový počet autorů 41 Číslo článku 012093 Zdroj.dok. Journal of Physics: Conference Series, 28th International Nuclear Physics Conference (INPC 2022), 2586. - Bristol : IOP Publishing, 2023 - ISSN 1742-6588 Poč.str. 6 s. Forma vydání Tištěná - P Akce International Nuclear Physics Conference (INPC 2022) /28./ Datum konání 11.09.2022 - 16.09.2022 Místo konání Cape Town Země ZA - Jižní Afrika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova nuclear reactions ; ANC ; CNO Obor OECD Astronomy (including astrophysics,space science) CEP EF16_013/0001679 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy LM2018115 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UJF-V - RVO:61389005 UT WOS 001086407400093 EID SCOPUS 85174624237 DOI https://doi.org/10.1088/1742-6596/2586/1/012093 Anotace The observation of neutrinos emitted in the p − p chain and in the CNO cycle can be employed to test the Standard Solar Model. The 3He(α,γ)7Be reaction is the first reaction of the 2nd and 3rd branch of the p − p chain, so the indetermination of its cross section significantly affects the predicted 7Be and 8B neutrino fluxes. Notwithstanding its relevance and the great deal of experimental and theoretical papers, information of the reaction cross section at energies of the core of the Sun (15 keV - 30 keV) is sparse and additional experimental work is necessary to attain the target (~ 3%) accuracy. The precise understanding of the external capture component to the 3He(α,γ)7Be reaction cross section is pivotal for the theoretical assessment of the reaction mechanism. In this work, the indirect measurement of this external capture component using the Asymptotic Normalization Coefficient (ANC) technique is discussed. To extract the ANC, the angular distributions of deuterons yielded in the 6Li(3He,d)7Be α-transfer reaction were detected with high precision at E3He=3.0 MeV and 5.0 MeV. The ANCs were then deduced from the juxtaposition of DWBA and CC calculations with the experimental angular distributions and the zero energy astrophysical S-factor for 3He(α,γ)7Be reaction was calculated to equal 0.534 ± 0.025 keVb. Both our experimental and theoretical approaches were tested through the analysis of the 6Li(p,γ)7Be astrophysical factor, with further interesting astrophysical implications. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2024 Elektronická adresa https://doi.org/10.1088/1742-6596/2586/1/012093
Počet záznamů: 1