Experimental techniques and performance of Λ-hypernuclear spectroscopy with the (e, e′K+) reaction

Toshiyuki Gogami; C. Chen; Y. Fujii; O. Hashimoto; Masashi Kaneta; D. Kawama; T. Maruta; A. Matsumura; Sho Nagao; Satoshi Nakamura; Y. Okayasu; J. Reinhold; L. Tang; K. Tsukada; S. A. Wood; L. Yuan

Experimental techniques and performance of Λ-hypernuclear spectroscopy with the (e, e^′K⁺) reaction

Toshiyuki Gogami, C. Chen, Y. Fujii, O. Hashimoto, Masashi Kaneta, D. Kawama, T. Maruta, A. Matsumura, Sho Nagao, Satoshi Nakamura, Y. Okayasu, J. Reinhold, L. Tang, K. Tsukada, S. A. Wood, L. Yuan

Research output: Contribution to journal › Article › peer-review

Abstract

The missing-mass spectroscopy of Λ hypernuclei via the (e, e^′K⁺) reaction has been developed through experiments at JLab Halls A and C in the last two decades. For the latest experiment, E05-115 in Hall C, we developed a new spectrometer system consisting of the HKS and HES; resulting in the best energy resolution (∆E ≃ 0.5-MeV FWHM) and BΛ accuracy (∆BΛ ≤ 0.2 MeV) in Λ-hypernuclear reaction spectroscopy. This paper describes the characteristics of the (e, e^′K⁺) reaction compared to other reactions and experimental methods. In addition, the experimental apparatus, some of the important analyses such as the semi-automated calibration of absolute energy scale, and the performance achieved in E05-115 are presented.

Original language	English
Journal	Unknown Journal
Publication status	Published - 2017 Sep 17

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Experimental techniques and performance of Λ-hypernuclear spectroscopy with the (e, e^′K⁺) reaction. / Gogami, Toshiyuki; Chen, C.; Fujii, Y.; Hashimoto, O.; Kaneta, Masashi; Kawama, D.; Maruta, T.; Matsumura, A.; Nagao, Sho ; Nakamura, Satoshi; Okayasu, Y.; Reinhold, J.; Tang, L.; Tsukada, K.; Wood, S. A.; Yuan, L.

In: Unknown Journal, 17.09.2017.

Research output: Contribution to journal › Article › peer-review

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abstract = "The missing-mass spectroscopy of Λ hypernuclei via the (e, e′K+) reaction has been developed through experiments at JLab Halls A and C in the last two decades. For the latest experiment, E05-115 in Hall C, we developed a new spectrometer system consisting of the HKS and HES; resulting in the best energy resolution (∆E ≃ 0.5-MeV FWHM) and BΛ accuracy (∆BΛ ≤ 0.2 MeV) in Λ-hypernuclear reaction spectroscopy. This paper describes the characteristics of the (e, e′K+) reaction compared to other reactions and experimental methods. In addition, the experimental apparatus, some of the important analyses such as the semi-automated calibration of absolute energy scale, and the performance achieved in E05-115 are presented.",

author = "Toshiyuki Gogami and C. Chen and Y. Fujii and O. Hashimoto and Masashi Kaneta and D. Kawama and T. Maruta and A. Matsumura and Sho Nagao and Satoshi Nakamura and Y. Okayasu and J. Reinhold and L. Tang and K. Tsukada and Wood, {S. A.} and L. Yuan",

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T1 - Experimental techniques and performance of Λ-hypernuclear spectroscopy with the (e, e′K+) reaction

AU - Gogami, Toshiyuki

AU - Chen, C.

AU - Fujii, Y.

AU - Hashimoto, O.

AU - Kaneta, Masashi

AU - Kawama, D.

AU - Maruta, T.

AU - Matsumura, A.

AU - Nagao, Sho

AU - Nakamura, Satoshi

AU - Okayasu, Y.

AU - Reinhold, J.

AU - Tang, L.

AU - Tsukada, K.

AU - Wood, S. A.

AU - Yuan, L.

PY - 2017/9/17

Y1 - 2017/9/17

N2 - The missing-mass spectroscopy of Λ hypernuclei via the (e, e′K+) reaction has been developed through experiments at JLab Halls A and C in the last two decades. For the latest experiment, E05-115 in Hall C, we developed a new spectrometer system consisting of the HKS and HES; resulting in the best energy resolution (∆E ≃ 0.5-MeV FWHM) and BΛ accuracy (∆BΛ ≤ 0.2 MeV) in Λ-hypernuclear reaction spectroscopy. This paper describes the characteristics of the (e, e′K+) reaction compared to other reactions and experimental methods. In addition, the experimental apparatus, some of the important analyses such as the semi-automated calibration of absolute energy scale, and the performance achieved in E05-115 are presented.

AB - The missing-mass spectroscopy of Λ hypernuclei via the (e, e′K+) reaction has been developed through experiments at JLab Halls A and C in the last two decades. For the latest experiment, E05-115 in Hall C, we developed a new spectrometer system consisting of the HKS and HES; resulting in the best energy resolution (∆E ≃ 0.5-MeV FWHM) and BΛ accuracy (∆BΛ ≤ 0.2 MeV) in Λ-hypernuclear reaction spectroscopy. This paper describes the characteristics of the (e, e′K+) reaction compared to other reactions and experimental methods. In addition, the experimental apparatus, some of the important analyses such as the semi-automated calibration of absolute energy scale, and the performance achieved in E05-115 are presented.

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