Development of a triple coincidence method of reaction, gamma-ray, and weak decay in the hypernuclear gamma-ray spectroscopy at J-PARC

Autor: Oura Fumiya, Fujita Manami, Ishikawa Yuji, Rogers Tatyana G., Tamura Hirokazu, Ukai Mifuyu, Yamamoto Takeshi O.
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: EPJ Web of Conferences, Vol 271, p 11007 (2022)
Druh dokumentu: article
ISSN: 2100-014X
DOI: 10.1051/epjconf/202227111007
Popis: To understand the mechanism of the charge symmetry breaking between 4ΛH and 4ΛHe, we plan to measure the gamma-transition energy of 4ΛH (1+ → 0+) with a Ge detector array. For identification of the hypernucleus, we will perform triple coincidence with the reaction, γ-ray, and weak decay for the first time. We measure the pion from weak decay with a range counter. This method will enable γ-ray spectroscopy of various hyperfragments which cannot be directly produced by (K−, π−) or (π+, K+) reactions.
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