EPJ Web of Conferences (Jan 2022)
First measurement of 25Al+p resonant scattering relevant to the astrophysical reaction 22Mg(α,p)25Al
- Hu J.,
- Yamaguchi H.,
- Lam Y.H.,
- Heger A.,
- Kahl D.,
- Jacobs A.M.,
- Johnston Z.,
- Xu S.W.,
- Zhang N.T.,
- Ma S.B.,
- Ru L.H.,
- Liu E.Q.,
- Liu T.,
- Hayakawa S.,
- Yang L.,
- Shimizu H.,
- Hamill C.B.,
- Murphy A. StJ.,
- Su J.,
- Fang X.,
- Chae K.Y.,
- Kwag M.S.,
- Cha S.M.,
- Duy N.N.,
- Uyen N.K.,
- Kim D.H.,
- Pizzone R.G.,
- La Cognata M.,
- Cherubini S.,
- Romano S.,
- Tumino A.,
- Liang J.,
- Psaltis A.,
- Sferrazza M.,
- Kim D.,
- Li Y.Y.,
- Kubono S.
Affiliations
- Hu J.
- Institute of Modern Physics, Chinese Academy of Sciences
- Yamaguchi H.
- Center for Nuclear Study(CNS), University of Tokyo
- Lam Y.H.
- Institute of Modern Physics, Chinese Academy of Sciences
- Heger A.
- School of Physics and Astronomy, Monash University
- Kahl D.
- Extreme Light Infrastructure -Nuclear Physics, IFIN-HH
- Jacobs A.M.
- The Joint Institute for Nuclear Astrophysics, Michigan State University
- Johnston Z.
- The Joint Institute for Nuclear Astrophysics, Michigan State University
- Xu S.W.
- Institute of Modern Physics, Chinese Academy of Sciences
- Zhang N.T.
- Institute of Modern Physics, Chinese Academy of Sciences
- Ma S.B.
- Institute of Modern Physics, Chinese Academy of Sciences
- Ru L.H.
- Institute of Modern Physics, Chinese Academy of Sciences
- Liu E.Q.
- Institute of Modern Physics, Chinese Academy of Sciences
- Liu T.
- Institute of Modern Physics, Chinese Academy of Sciences
- Hayakawa S.
- Center for Nuclear Study(CNS), University of Tokyo
- Yang L.
- Center for Nuclear Study(CNS), University of Tokyo
- Shimizu H.
- Center for Nuclear Study(CNS), University of Tokyo
- Hamill C.B.
- SUPA, School of Physics & Astronomy, University of Edinburgh
- Murphy A. StJ.
- SUPA, School of Physics & Astronomy, University of Edinburgh
- Su J.
- College of Nuclear Science and Technology, Beijing Normal University
- Fang X.
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University
- Chae K.Y.
- Department of Physics, Sungkyunkwan University
- Kwag M.S.
- Department of Physics, Sungkyunkwan University
- Cha S.M.
- Department of Physics, Sungkyunkwan University
- Duy N.N.
- Department of Physics, Sungkyunkwan University
- Uyen N.K.
- Department of Physics, Sungkyunkwan University
- Kim D.H.
- Department of Physics, Sungkyunkwan University
- Pizzone R.G.
- Laboratori Nazionali del Sud-INFN
- La Cognata M.
- Laboratori Nazionali del Sud-INFN
- Cherubini S.
- Laboratori Nazionali del Sud-INFN
- Romano S.
- Laboratori Nazionali del Sud-INFN
- Tumino A.
- Laboratori Nazionali del Sud-INFN
- Liang J.
- Department of Physics & Astronomy, McMaster University
- Psaltis A.
- Department of Physics & Astronomy, McMaster University
- Sferrazza M.
- Département de Physique, Université Libre de Bruxelles
- Kim D.
- Department of Physics, Ewha Womans University
- Li Y.Y.
- Institute of Modern Physics, Chinese Academy of Sciences
- Kubono S.
- Center for Nuclear Study(CNS), University of Tokyo
- DOI
- https://doi.org/10.1051/epjconf/202226005001
- Journal volume & issue
-
Vol. 260
p. 05001
Abstract
Type I X-ray bursts (XRBs) are the most frequently observed thermonuclear explosions in nature. The 22Mg(α,p)25Al reaction plays a critical role in XRB models. However, experimental information is insufficient to deduce a precise 22Mg(α,p)25Al reaction rate for the respective XRB temperature range. A new measurement of 25Al+p resonant scattring was performed up to the astrophysically interested energy region of 22Mg(α,p)25Al. Several resonances were observed in the excitation functions, and their level properties have been determined based on an R-matrix analysis. In particular, proton widths and spin-parities of four natural-parity resonances above the α threshold of 26Si, which can contribute the reaction rate of 22Mg(α,p)25Al, were first experimentally determined.
