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 D11: Minisymposium: Three-Nucleon Forces: Recent Results and Implications |
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Chair: Dean Lee, Michigan State University Room: Hilton Waikoloa Village Kings 1 |
Wednesday, November 29, 2023 9:00AM - 9:15AM |
D11.00001: Spin Correlation Coefficients Measurement in Polarized Deuteron-Polarized Proton Scattering Experiment Yuko Saito, Kimiko Sekiguchi, Atomu Watanabe, Yoshiki Maruta, Takaya Matsui, Kotaro Suzuki, Kento Hirasawa, Hiroki Sugahara, Daichi Takahashi, Kenichiro Tateishi, Daisuke Miura, Naruhiko Sakamoto, Hideaki Otsu, Tomohiro Uesaka, Hideyuki Sakai, Tomotsugu Wakasa, Hiroki Nishibata, Kazuki Aradono, Takafumi Kajihara, Satoshi Sakaguchi, Takashi Wakui Few-nucleon scattering experiment is one of the adequate probes to investigate detailed characteristics of the Three Nucleon Forces (3NFs). From an extensive performance of deuteron-proton (d-p) elastic scattering at intermediate energies (70-300 MeV/nucleon) by a group in RIKEN, clear signatures of 3NF effects were confirmed in results of the cross sections, whereas deficiencies of current 3NF models were revealed by those of the spin observables. |
Wednesday, November 29, 2023 9:15AM - 9:30AM |
D11.00002: Abstract Withdrawn
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Wednesday, November 29, 2023 9:30AM - 9:45AM |
D11.00003: Cold radiative neutron-deuteron capture and Wigner-SU(4) Symmetry Xincheng Lin, Hersh Singh, Roxanne P Springer, Jared Vanasse Few-nucleon systems are critical for understanding how nuclear phenomena arise from fundamental symmetries. We use pionless effective field theory, which has been successfully applied to low-energy few-body nuclear systems, to study triton and neutron-deuteron ($nd$) systems involving external currents. In particular, I will focus on low-energy radiative cold $nd$ capture up to next-to-next-to-leading order and how this process can help gain insights into the utility of Wigner-SU(4) symmetry. This study will be extended to investigate asymmetries, including parity violation. |
Wednesday, November 29, 2023 9:45AM - 10:00AM |
D11.00004: Past and future pd breakup measurements at the intermediate energy region for the study of three-nucleon force and knock-out reactions Yukie Maeda, Maoto Mitsui, Tomohiro Uesaka, Juzo Zenihiro, Yoshiki Chazono, Ryotaro Tsuji, Shinsuke Ota The effects of three-nucleon force (3NF) have been actively studied by using the nucleon-deuteron (Nd) scattering states. The differential cross sections of the elastic Nd scattering at the energy below 150 MeV can be well reproduced by the Faddeev calculation based on modern nucleon-nucleon (NN) interactions and 3NF. On the other hand, the data at 250 MeV was underestimated by the calculations with 3NF by 50%. And this large discrepancy between the data and the theory was also shown in the 2H(p, p)pn inclusive breakup reaction at 250 MeV. |
Wednesday, November 29, 2023 10:00AM - 10:15AM |
D11.00005: Three-body force and beyond in low-dimensional ultracold atoms Yusuke Nishida I will give a brief and partial overview of three-body force and beyond in low-dimensional ultracold atoms. |
Wednesday, November 29, 2023 10:15AM - 10:30AM |
D11.00006: Ab initio Investigations of Helium Fusion Mack C Atkinson The 3He(α,γ)7Be fusion reaction is an important part of ongoing processes occuring in stars like our very own sun. This fusion reaction is key to determining the 7Be and 8B neutrino fluxes resulting from the pp-II chain in the sun . In standard solar model (SSM) predictions of these neutrino fluxes, the low-energy 3He(α,γ)7Be S factor, S34(E), is the largest source of uncertainty from nuclear input. The SSM uses S34(E) near the Gamow peak energy, roughly 18 keV, which cannot be experimentally measured since the Coulomb force between 3He and 4He suppresses the fusion reaction at such low energies. Theoretical calculations are needed to guide the extrapolation to the solar energies of interest. To this end, I will present ab initio calculations of the 3He(α,γ)7Be reaction using the no-core shell model with continuum starting from two- and three-nucleon chiral interactions. To demonstrate that the NCSMC provides an accurate S factor, I will also compare NCSMC 3He + 4He elastic-scattering cross sections with those recently measured by the SONIK collaboration. |
Wednesday, November 29, 2023 10:30AM - 11:00AM |
D11.00007: Three-nucleon force effects and uncertainties in ab initio nuclear reactions Invited Speaker: Konstantinos Kravvaris Modern simulations of nuclear reactions and clustering phenomena rely on nucleon-nucleon and three-nucleon (3N) interactions vetted at the highest possible degree. Especially for first-principle calculations of astrophysically relevant reactions, the fine details of the nuclear interaction are integral in obtaining precise and accurate cross sections and other observables. In this talk we will discuss the effects of the 3N part of the nuclear interaction on such calculations using the no-core shell model with continuum (NCSMC) method. Results on quantifying uncertainties of 3N forces on various systems will be presented, focusing on both the parametric uncertainties, as well as physical ones. |
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