interaction; 
-ray spectroscopy of 
HeYamamoto, T. O.*; Hasegawa, Shoichi 
; Hayakawa, Shuhei; Hosomi, Kenji ; Hwang, S.; Ichikawa, Yudai ; Imai, Kenichi; Kimbara, Shinji; Nakada, Yoshiyuki; Sako, Hiroyuki ; Sato, Susumu ; Sugimura, Hitoshi; Tanida, Kiyoshi ; J-PARC E13 Collaboration*; 41 of others*
The energy spacing between the spin-doublet bound state of He
was determined to be 
keV, by measuring rays for the 
transition with a high efficiency germanium detector array in coincidence with the 
He reaction at J-PARC. In comparison to the corresponding energy spacing in the mirror hypernucleus H, the present result clearly indicates the existence of charge symmetry breaking (CSB) in interaction. By combining the energy spacings with the known ground-state binding energies, it is also found that the CSB effect is large in the 
ground state but is vanishingly small in the 
excited state, demonstrating that the CSB interaction has spin dependence.
Language |
: | English |
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Journal |
: | |
Volume |
: | 115 |
Number |
: | 22 |
Pages |
: | p.222501_1 - 222501_5 |
Publication Year/Month |
: | 2015/11 |
| : | ||
Paper URL |
: |
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Keywords |
: | |
Research Facility |
: | |
Press Release |
: | |
Article of JAEA R&D Review |
: | A "Strange Particle" Breaks the Charge Symmetry of a Nucleus; Successful Measurement of the Energy Levels of a Helium Hypernucleus[ |
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: |
Percentile:92.61 Category:Physics, Multidisciplinary |
Altmetrics |
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