Kodai OKAWA
(CNS, the University of Tokyo)
The $\alpha$p-process, consisting of a series of ($\alpha$,p) and (p,$\gamma$) reactions, plays an important
role in nucleosynthesis during X-ray bursts. Among these reactions, the 26Si($\alpha$,p)29P
reaction is particularly significant due to its substantial impact on the light curve of X-
ray bursts. Despite its importance, experimental data for this reaction remain
insufficient due to technical reasons.
In this study, we performed a direct measurement of the 26Si($\alpha$,p)29P reaction at the
CNS RI beam separator (CRIB). We measured the reaction at energies corresponding to the high-temperature environment around T = 3 GK using the 4He thick gas target method.
Despite numerous background events, we determined the reaction cross section,
which was approximately an order of magnitude lower than the value of the NON-
SMOKER statistical model.
This research represents the first experimental determination of this reaction cross
section through direct measurement. Consequently, our results will provide valuable
insights for estimating the reaction rate in the high-energy region and for refining the X-
ray burst light curve model.
Kodai OKAWA
(CNS, the University of Tokyo)
Kyungyuk CHAE
(Department of Physics, Sungkyunkwan University)
Minju KIM
(Department of Physics, Sungkyunkwan University)
Seiya HAYAKAWA
(Center for Nuclear Study, the University of Tokyo)
Chanhee KIM
(Department of Physics, Sungkyunkwan University)
Dahee KIM
(Center for Exotic Nuclear Studies, Institute for Basic Science (IBS))
David KAHL
(Extreme Light Infrastructure Nuclear Physics (ELI-NP))
Duy NGUYEN NGOC
(Department of Physics, Sungkyunkwan University)
Gyungmo GU
(Department of Physics, Sungkyunkwan University)
Hideki SHIMIZU
(Center for Nuclear Study, the University of Tokyo)
Hidetoshi YAMAGUCHI
(Center for Nuclear Study, the University of Tokyo)
Jiatai LI
(Center for Nuclear Study, the University of Tokyo)
KimUyen NGUYEN
(Department of Physics, Sungkyunkwan University)
Kohsuke SAKANASHI
(Department of Physics, Osaka University)
Minsik KWAG
(Department of Physics, Sungkyunkwan University)
Nanru MA
(Center for Nuclear Study, the University of Tokyo)
Nobuaki IMAI
(Center for Nuclear Study, the University of Tokyo)
Oana SIRBU
(Extreme Light Infrastructure Nuclear Physics (ELI-NP))
Qian ZHANG
(Center for Nuclear Study, the University of Tokyo)
Rin YOKOYAMA
(Center for Nuclear Study, the University of Tokyo)
Satoshi ADACHI
(Department of Physics, Osaka University)
Shigeru KUBONO
(RIKEN Nishina Center)
Shin'ichiro MICHIMASA
(Center for Nuclear Study, the University of Tokyo)
Shutaro HANAI
(Center for Nuclear Study, the University of Tokyo)
Sohyun KIM
(Department of Physics, Sungkyunkwan University)
Soomi CHA
(Center for Exotic Nuclear Studies, Institute for Basic Science (IBS))
Takahiro KAWABATA
(Department of Physics, Osaka University)
Tatsuya FURUNO
(Department of Physics, Osaka University)
Thomas CHILLERY
(Center for Exotic Nuclear Studies, Institute for Basic Science (IBS))
There are no materials yet.
