High precision mass measurements for nuclear astrophysics
Julkaistu sarjassa
JYU dissertationsTekijät
Päivämäärä
2019Tekijänoikeudet
© The Author & University of Jyväskylä
Masses of neutron-deficient nuclei 25Al, 30P and 31Cl and neutron-rich nuclei 67Fe, 69Co and 70Co have been measured with the JYFLTRAP double Penning trap at the IGISOL-4 facility. The Time-of-Flight Ion Cyclotron Resonance technique has been used to achieve precise mass values whereas the Phase-Imaging Ion Cyclotron Resonance method has been employed for state identification in 70Co. The resonant proton-capture rates for the 25Al\((p, \gamma\))26Si and 30P\((p, \gamma\))31S reactions have been calculated with the Q values determined in this work. The waitingpoint conditions for 30S in the rp-process have been studied using the proton separation energy determined for 31Cl. Additionally, the mass-excess value of 31Cl has been used to test the isobaric multiplet mass equation for the T= 3/2 quartet at A=31. The evolution of the mass surface and the N=40 subshell closure below 68Ni has been studied with the new mass values of 67Fe, 69Co and 70Co. The impact on the neutron capture rates 67Fe\((n, \gamma\))68Fe and 68Co\((n, \gamma\))69Co relevant for the weak r-process, and their inverse photodisintegration rates, is discussed.
Keywords: Penning trap, nuclear binding energy, nuclear astrophysics
Keywords: Penning trap, nuclear binding energy, nuclear astrophysics
Julkaisija
Jyväskylän yliopistoISBN
978-951-39-7693-4ISSN Hae Julkaisufoorumista
2489-9003Julkaisuun sisältyy osajulkaisuja
- Artikkeli I: Canete, L., Kankainen, A., Eronen, T., Gorelov, D., Hakala, J., Jokinen, A., . . . Rinta-Antila, S. (2016). High-precision mass measurements of 25Al and 30P at JYFLTRAP. European Physical Journal A, 52 (5), 124. DOI: 10.1140/epja/i2016-16124-0
- Artikkeli II: Kankainen, A., Canete, L., Eronen, T., Hakala, J., Jokinen, A., Koponen, J., . . . Äystö, J. (2016). Mass of astrophysically relevant 31Cl and the breakdown of the isobaric multiplet mass equation. Physical Review C, 93 (4), 041304(R). DOI: 10.1103/PhysRevC.93.041304
- Artikkeli III: L. Canete, S. Giraud, A. Kankainen, B. Bastin, F. Nowacki, A. Poves,P. Ascher, T. Eronen, V. Girard Alcindor, A. Jokinen, A. Khanam, I.D. Moore, D. Nesterenko, F. De Oliveira, H. Penttilä, C. Petrone, I. Pohjalainen, A. DeRoubin, V. Rubchenya, M. Vilen, and J. Äystö. Probing the N=40 subshell closure via mass measurements of67Fe and 69,70Co. To be submitted.
- Artikkeli IV: Canete, L., Kankainen, A., Eronen, T., Gorelov, D., Hakala, J., Jokinen, A., . . . Rinta-Antila, S. (2017). High-Precision Proton-Capture Q Values for 25Al(p,γ)26Si and 30P(p,γ)31Si. In NIC 2016 : Proceedings of the 14th International Symposium on Nuclei in the Cosmos (pp. 020503). Physical Society of Japan. DOI: 10.7566/JPSCP.14.020503
- Artikkeli V: Canete, L., Eronen, T., Jokinen, A., Kankainen, A., Moore, I., Nesterenko, D., & Rinta-Antila, S. (2017). High-precision mass measurements for the rp-process at JYFLTRAP. In M. L. Cognata, M. Lattuada, S. Palmerini, R. G. Pizzone, & C. Spitaleri (Eds.), Nuclear Physics in Astrophysics VIII (NPA8 2017) Catania, Italy, June 18-23, 2017 (pp. 01008). EDP Sciences. DOI: 10.1051/epjconf/201716501008
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