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Tamura, H.; Tanida, K.; Abe, Daisuke; Akikawa, H.; Araki, Koji; Bhang, H.; Endo, T.; Fujii, Y.; Fukuda, T.; Hashimoto, Osamu; Imai, K.; Hotchi, H.; Kakiguchi, Y.; Kim, J. H.; Kim, Y. D.; Miyoshi, T.; Murakami, T.; Nagae, T.; Noumi, H.; Outa, H.; Ozawa, Kenji; Saito, Takehiko; Sasao, J.; Sato, Y.; Satoh, Shiro; Sawafta, R.; Sekimoto, M.; Takahashi, T.; Tang, L.; Haihong, Xia; Zhou, S. H.; Zhu, Lei

doi:10.1103/physrevlett.84.5963

Cited by 140 publications

(78 citation statements)

References 18 publications

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“…The other purpose is to cross-check the ΛN spin-dependent interaction parameters which have been determined from the 7 Λ Li, 9 Λ Be, and 16 Λ O experiments with Hyperball. The experimental setup is almost identical to the one in E419 [1,5]. We used a 10 cm-thick 98%-enriched 11 B metal target.…”

Section: Spectroscopy Of 11 λ B (E518)mentioning

confidence: 99%

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γ-ray spectroscopy in Λ hypernuclei

Tamura¹,

Ajimura²,

Akikawa³

et al. 2005

Nuclear Physics A

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The present status of hypernuclear γ-ray spectroscopy with Hyperball is summarized. We observed two γ transitions of 16 Λ O(1 − → 1 − , 0 − ) and obtained the strength of the ΛN tensor force. In 10 B(K − , π − γ) data, we did not observe the spin-flip M1 transition of 10 Λ B(2 − → 1 − ), but γ rays from hyperfragments such as 7 Λ Li(7/2 + → 5/2 + ) and 9 Λ Be(3/2 + → 1/2 + ) were observed. In 11 B(π + , K + γ) data, we observed six γ transitions of 11 Λ B. We also attempted an inclusive γ-ray measurement with stopped K − beam. † Present address:

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Section: Spectroscopy Of 11 λ B (E518)mentioning

confidence: 99%

“…Together with the E419 results [1], we have clarified the complete level scheme and energies of all the bound states of 7 Λ Li as shown in Fig. 1 (a).…”

Section: Complete Study Ofmentioning

confidence: 99%

γ-ray spectroscopy in Λ hypernuclei

Tamura¹,

Ajimura²,

Akikawa³

et al. 2005

Nuclear Physics A

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“…An experimental technique to use Germanium (Ge) detectors with a high energy resolution is necessary to resolve energy splitting of non-zero spin states of a core-nucleus. Since 1998, γ rays 1 [1][2][3][4][5][6][7][8][9]. These results are a good bench mark of ΛN interaction and Λ-hypernuclei.…”

Section: Introductionmentioning

confidence: 59%

The First Gamma-ray Spectroscopic Study of sd-shell Hypernucleus, \(_{\Lambda }^{19}\text{F}\)

Yang¹,

Akazawa²,

Aoki

et al. 2017

Proceedings of the 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015)

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The first γ-ray spectroscopy of sd-shell hypernucleus, 19 Λ F, is performed in June, 2015 at the J-PARC K1.8 beam line (J-PARC E13). Precise energy levels of 19 Λ F can be revealed by measured γ rays in this experiment. Especially, the strength of ΛN spin-spin interaction in sd-shell hypernucleus is obtained through the energy spacing of the ground-state doublet of the hypernucleus. By comparing its strength between the s, p, and sd-shell hypernuclei, a radial dependence of ΛN interaction is investigated. The hypernucleus is produced through the (K − , π − ) reaction with the beam momentum of 1.8 GeV/c. In very preliminary results, we observed two γ rays, and their energies are 315.8 ± 0.4 keV and 895.3 ± 0.3 keV where the uncertainties are only statistical.

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“…In p-shell Λ hypernuclei, experimental and theoretical studies have revealed a couple of interesting structure changes. For example, the reduction of the intercluster distance by the Λ hyperon in s-orbit has been confirmed through the observation of E2 transition probabilities B(E2) in 7 Λ Li [1,2,3,4], that has the developed α + d + Λ cluster structure. In sd-shell Λ hypernuclei, various structure changes have been predicted theoretically, because normal sd-shell nuclei have a variety of structures, such as cluster structure and mean-field like structure with axial/triaxial deformation, in the ground and low-lying states.…”

Section: Introductionmentioning

confidence: 88%