Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session C10: Nuclear Structure I
7:00 PM–9:15 PM,
Tuesday, November 28, 2023
Hilton Waikoloa Village
Room: Kohala 3
Chair: Riccardo Orlandi, JAEA, ASRC
Abstract: C10.00006 : A new method for derivation of the proton distribution radii through charge-changing cross sections for light-mass isotope chains
8:15 PM–8:30 PM
Presenter:
Gen Takayama
(Osaka University)
Authors:
Gen Takayama
(Osaka University)
Mitsunori Fukuda
(Osaka Univ.)
Masaomi Tanaka
(Kyushu Univ.)
Miki Fukutome
(Osaka Univ.)
Yoko Kimura
(Osaka Univ.)
Ryo Taguchi
(Osaka Univ.)
Kaoru Watanabe
(Osaka Univ.)
Daiki Nishimura
(Tokyo City Univ.)
Hiroyuki Takahashi
(Tokyo City Univ.)
Sora Sugawara
(Tokyo City Univ.)
Chihaya Fukushima
(Tokyo City University)
Akira Ozawa
(University of Tsukuba)
Tetsuaki Moriguchi
(University of Tsukuba)
Asahi Yano
(University of Tsukuba)
Takashi Otsubo
(Niigata Univ.)
Maya Takechi
(Niigata Univ.)
Mizuki Ogose
(Niigata Univ.)
Norihide Noguchi
(Niigata Univ.)
Kazuya Takatsu
(Niigata Univ.)
Yukiya Kobayashi
(Niigata Univ.)
Yuki Tazawa
(Niigata Univ.)
Natsuki Shindo
(Niigata Univ.)
Takeshi Suzuki
(Saitama Univ.)
Takayuki Yamaguchi
(Saitama Univ.)
Hibiki Seki
(Saitama Univ.)
Masanori Kanda
(Saitama Univ.)
Takuji Izumikawa
(CCRF)
Shinji Sato
(QST)
Shigekazu Fukuda
(QST)
Atsushi Kitagawa
(QST)
Kensaku Matsuta
(Osaka Univ.)
Mototsugu Mihara
(Osaka Univ.)
Yurika Ohtani
(Osaka Univ.)
Collaboration:
Grant-in-Aid for JSPS Fellows
We are attempting to derive the proton and neutron distribution radii by simultaneous measurements of the interaction cross sections and the charge-changing cross sections. The relationship between the proton distribution radius and the charge-changing cross section can be intuitively understood through geometric considerations. However, previous studies have revealed that the charge-changing cross section does not simply correspond to the proton distribution radius of the incident nucleus but also depends on the neutron distribution of the incident nucleus. Therefore, in this study, we devised a method to quantitatively evaluate the portion dependent on the neutron distribution and subtract it from the charge-changing cross section to derive the proton distribution radius. Specifically, we measured the charge-changing cross sections at ~ 170A MeV for He, Li, and Be isotopes on several target nuclides. Proton distribution radii of both projectiles and targets are known. As a result, we found that the contribution from the portion of the charge change cross section that depends on the neutron distribution of the incident nucleus is found to be particularly large for the proton target. Utilizing this fact, we will discuss a new method to derive the proton distribution radii.
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