A new γ-ray spectroscopy experiment on 4 He and 19F via the (K−, π−) reaction (J-PARC E13 1st ΛΛ Part) is being prepared at the J-PARC hadron facility. The measurement will provide information on the degree of charge symmetry breaking effect in ΛN interaction and information on the effective ΛN spin-spin interaction in sd-shell hypernuclei. In May 2013, a commissioning beam time was used to check beam conditions and performance of individual detectors as well as the whole system. Production of Σ+ and 12C through the (K−,π−) reaction was performed with a CH2 target. A CF2 Λ target was also tried to test the system in the γ-(K−, π−) reaction coincidence mode.

High Precision γ-ray Spectroscopy of \(_\Lambda ^4\textHe\) and \(_\Lambda ^19\textF\) at J-PARC

BOTTA, Elena;MARCELLO, Simonetta;
2014-01-01

Abstract

A new γ-ray spectroscopy experiment on 4 He and 19F via the (K−, π−) reaction (J-PARC E13 1st ΛΛ Part) is being prepared at the J-PARC hadron facility. The measurement will provide information on the degree of charge symmetry breaking effect in ΛN interaction and information on the effective ΛN spin-spin interaction in sd-shell hypernuclei. In May 2013, a commissioning beam time was used to check beam conditions and performance of individual detectors as well as the whole system. Production of Σ+ and 12C through the (K−,π−) reaction was performed with a CH2 target. A CF2 Λ target was also tried to test the system in the γ-(K−, π−) reaction coincidence mode.
2014
12th Asia Pacific Physics Conference (APPC12)
Makuhari, Japan
July 14–19, 2013
1
013076
013076
Λ hypernuclei, γ-ray spectroscopy, Hyperball-J, J-PARC
Yang, S. B.; Agnello, M.; Akazawa, Y.; Amano, N.; Aoki, K.; Botta, E.; Chiga, N.; Ekawa, H.; Evtoukhovitch, P.; Feliciello, A.; Haruyama, T.; Hasegawa...espandi
File in questo prodotto:
File Dimensione Formato  
jpscp_1_2014_013076.pdf

Accesso riservato

Descrizione: jpscp_1_2014_013076
Tipo di file: PDF EDITORIALE
Dimensione 378.99 kB
Formato Adobe PDF
378.99 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1522266
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact