Measurement of the Radiative-Decay Probability of the Hoyle State

Kosuke Sakanashi; Takahiro Kawabata; Tatsuya Furuno; Atsushi Tamii; Rei Niina; Shintaro Okamoto; Masatoshi Ito; Satoshi Adachi; Hidetoshi Akimune; Yohei Matsuda; Shigeru Kubono; Soichiro Aogaki; Pär-Anders Soöderstroöm; Madgearu Teodora; Haridas Pai; Mihai Cuciuc; Dmitry Tescov; Ruxandra Borcea; Andrei Turturica; Constantin Mihai; Catalin Neacse

doi:10.1051/epjconf/202430601047

All issues

Volume 306 (2024)

EPJ Web Conf., 306 (2024) 01047

Abstract

Open Access

Issue		EPJ Web Conf. Volume 306, 2024 FUSION23 – International Conference on Heavy-Ion Collisions at Near-Barrier Energies


Article Number		01047
Number of page(s)		4
DOI		https://doi.org/10.1051/epjconf/202430601047
Published online		18 October 2024

EPJ Web of Conferences 306, 01047 (2024)
https://doi.org/10.1051/epjconf/202430601047

Measurement of the Radiative-Decay Probability of the Hoyle State

Kosuke Sakanashi¹^*, Takahiro Kawabata¹, Tatsuya Furuno¹, Atsushi Tamii², Rei Niina², Shintaro Okamoto³, Masatoshi Ito⁴, Satoshi Adachi⁴, Hidetoshi Akimune⁵, Yohei Matsuda⁵, Shigeru Kubono⁶, Soichiro Aogaki⁷, Pär-Anders Soöderstroöm⁷, Madgearu Teodora⁷, Haridas Pai⁷, Mihai Cuciuc⁷, Dmitry Tescov⁷, Ruxandra Borcea⁸, Andrei Turturica⁸, Constantin Mihai⁸ and Catalin Neacse⁸

¹ Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
² Research center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
³ Department of Physics, Kyoto University, Sakyo, Kyoto 606-8502, Japan
⁴ Research Center for Accelerator and Radioisotope Science, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan
⁵ Department of Physics, Konan University, Kobe, Hyogo 658-8501, Japan
⁶ Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
⁷ Extreme Light Infrastructure Nuclear Physics, Bucharest-Măgurele 077125, Romania
⁸ Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Măgurele 077125, Romania

^* e-mail: sakanashi@ne.phys.sci.osaka-u.ac.jp

Published online: 18 October 2024

Abstract

The radiative-decay probability of the Hoyle state is actually controversial because new data which contradicts the currently adopted value has been recently reported. In this work, we performed the new reliable measurement of the radiative-decay probability of the Hoyle state. We successfully obtained 40 triplecoincidence events of scattered α particles, recoil ¹²C, and emitted γ rays for the first time. Further analysis will determine the radiative-decay probability, and puzzle over the radiative-decay probability.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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