Low-Energy Dipole Strength in $$^8$$He
-
Published:2024-05-07
Issue:2
Volume:65
Page:
-
ISSN:1432-5411
-
Container-title:Few-Body Systems
-
language:en
-
Short-container-title:Few-Body Syst
Author:
Bonaiti Francesca,Bacca Sonia
Abstract
AbstractIn this work, we present new ab initio coupled-cluster calculations of dipole-excited state properties of $$^8$$
8
He based on the chiral effective field theory interaction 1.8/2.0 (EM). We focus on the dipole polarizability, and compare the results to our previous study [Phys. Rev. C 105, 034313 (2022)] and subsequent theoretical work. With the aim of connecting the presence of low-lying dipole strength to structure properties of $$^8$$
8
He, we compute the point-neutron radius, finding excellent agreement with available experimental data, and investigate its correlation with the dipole polarizability.
Funder
Johannes Gutenberg-Universität Mainz
Publisher
Springer Science and Business Media LLC
Reference40 articles.
1. M. Duer, T. Aumann, R. Gernhäuser, V. Panin, S. Paschalis, D.M. Rossi, N.L. Achouri, D. Ahn, H. Baba, C.A. Bertulani, M. Böhmer, K. Boretzky, C. Caesar, N. Chiga, A. Corsi, D. Cortina-Gil, C.A. Douma, F. Dufter, Z. Elekes, J. Feng, B. Fernández-Domínguez, U. Forsberg, N. Fukuda, I. Gasparic, Z. Ge, J.M. Gheller, J. Gibelin, A. Gillibert, K.I. Hahn, Z. Halász, M.N. Harakeh, A. Hirayama, M. Holl, N. Inabe, T. Isobe, J. Kahlbow, N. Kalantar-Nayestanaki, D. Kim, S. Kim, T. Kobayashi, Y. Kondo, D. Körper, P. Koseoglou, Y. Kubota, I. Kuti, P.J. Li, C. Lehr, S. Lindberg, Y. Liu, F.M. Marqués, S. Masuoka, M. Matsumoto, J. Mayer, K. Miki, B. Monteagudo, T. Nakamura, T. Nilsson, A. Obertelli, N.A. Orr, H. Otsu, S.Y. Park, M. Parlog, P.M. Potlog, S. Reichert, A. Revel, A.T. Saito, M. Sasano, H. Scheit, F. Schindler, S. Shimoura, H. Simon, L. Stuhl, H. Suzuki, D. Symochko, H. Takeda, J. Tanaka, Y. Togano, T. Tomai, H.T. Törnqvist, J. Tscheuschner, T. Uesaka, V. Wagner, H. Yamada, B. Yang, L. Yang, Z.H. Yang, M. Yasuda, K. Yoneda, L. Zanetti, J. Zenihiro, M.V. Zhukov, Observation of a correlated free four-neutron system. Nature 606(7915), 678–682 (2022). https://doi.org/10.1038/s41586-022-04827-6 2. F.M. Marqués, J. Carbonell, The quest for light multineutron systems. Eur. Phys. J. A 57(3), 105 (2021). https://doi.org/10.1140/epja/s10050-021-00417-8 3. T. Faestermann, A. Bergmaier, R. Gernhäuser, D. Koll, M. Mahgoub, Indications for a bound tetraneutron. Phy. Lett. B 824, 136799 (2022). https://doi.org/10.1016/j.physletb.2021.136799 4. M. Duer, Private communication 5. R. Lazauskas, E. Hiyama, J. Carbonell, Low energy structures in nuclear reactions with $$4n$$ in the final state. Phys. Rev. Lett. 130, 102501 (2023). https://doi.org/10.1103/PhysRevLett.130.102501
|
|