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 L02: Nuclear Radii and EOS
9:00 AM–10:45 AM,
Friday, December 1, 2023
Hilton Waikoloa Village
Room: Kona 1
Abstract: L02.00006 : Design of a new experimental setup and simulation of neutron shielding for the very-forward-angle neutron elastic scattering
10:15 AM–10:30 AM
Presenter:
Tomoya Nakada
(Department of Physics, Kyoto University)
Authors:
Tomoya Nakada
(Department of Physics, Kyoto University)
Saya Iwai
(Department of Physics, Kyoto University)
Teppei Iwamoto
(Department of Physics, Kyoto University)
Airu Makita
(International Center for Elementary Particle Physics, University of Tokyo)
Mariko Tachibana
(Department of Physics, Kyoto University)
Toi Tachibana
(Department of Physics, Kyoto University)
Tatsuya Wada
(Yukawa Institute for Theoretical Physics, Kyoto University)
Shintaro Okamoto
(Department of Physics, Kyoto University)
Takayuki Yano
(Department of Physics, Kyoto University)
Masanori Dozono
(Department of Physics, Kyoto University)
Juzo Zenihiro
(Department of Physics, Kyoto University)
Proton elastic scattering (PES) is one of the powerful probes in determining the density distributions. In the case of PES, the cross sections at very forward angles which is sensitive to the nuclear radius, are mainly caused by the Coulomb scattering. It is difficult to extract the information of the neutron radius. Therefore, we proposed an experiment of the neutron elastic scattering (NES) to precisely determine the neutron radius in 208Pb.
Recently, we have performed a development to measure the NES at very forward angles (4, 7 degrees) in 208Pb and 40Ca. We have designed a new setup with neutron beams at 63 MeV generated by the 7Li(p,n) reaction. To distinguish between the neutron beams and the scattered neutrons, beam collimation and neutron shielding were essential. In this presentation, the details of the experimental setup and feasibility test with simulations will be discussed.
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