Doubly strange nuclei by a hybrid-emulsion experiment E373 at KEK

Ahn, J. K.; Akaishi, Yoshinori; Akikawa, H.; Aoki, Shigeki; Arai, K.; Bahk, S. Y.; Baik, K. M.; Bassalleck, B.; Chung, M.; Davis, D. H.; Franklin, G.; Fukuda, Tsutomu; Hoshino, K.; Ichikawa, A. K.; Ieiri, M.; Iwata, Yoshiyuki; Iwata, Y. S.; Kanda, H.; Kaneko, M.; Kawai, Takeshi; Kim, C. O.; Kim, J. Y.; Kim, S. J.; Kim, S. H.; Kondo, Y.; Kouketsu, T.; Lee, Y. L.; McNabb, J. W.; Mitsuhara, Manabu; Motoba, T.; Nagase, Y.; Nagoshi, C.; Nakazawa, Kimitaka; Noumi, H.; Ogawa, S.; Okabe, H.; Oyama, K.; Park, H. M.; Park, I. G.; Parker, Joseph D.; S., Y.; Rhee, J. T.; Rusek, A.; Shibuya, H.; Sim, K. S.; Saha, P.; Seki, Daikichi; Sekimoto, M.; Song, J.; Takahashi, Hajime; Takahashi, Toshiya; Takéutchi, F.; Tanaka, Hiroshi; Tanida, K.; Tojo, J.; Torii, H.; Torikai, S.; Tovee, D.N.; Ushida, N.; Yamamoto, K.; Yamamoto, Yūzō; Yasuda, N.; Yang, Jing; Yoon, C. J.; Yoon, C. S.; Yosoi, M.; Yoshida, T.; Zhu, Lei

doi:10.1063/1.1425502

Cited by 28 publications

(63 citation statements)

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“…It is consistent with the production of 10 ΛΛ Be * 2 + (∼ 3 MeV) in the Demachi-Yanagi event. 31) In contrast, the ≈ 2σ discrepancy between B ΛΛ ( 11 ΛΛ Be) exp and B ΛΛ ( 11 ΛΛ Be) calc casts doubts on each one of the Hida event interpretations listed in Table II. The calculated 11 ΛΛ Be spectrum is shown on the r.h.s.…”

Section: §1 Introductionmentioning

confidence: 97%

Strangeness Nuclear Physics – 2010

Gal

2010

Progress of Theoretical Physics Supplement

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Selected topics in Strangeness Nuclear Physics are reviewed: Λ-hypernuclear spectroscopy and structure, multistrangeness, and K mesons in nuclei. * ) In the case of 4 Σ He, the only known quasibound Σ hypernucleus, 42), 43) the isovector term provides substantial attraction owing to the small value of A towards binding the T = 1/2 hypernuclear configuration, while the isoscalar repulsion reduces the quasibound level width.

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Section: §1 Introductionmentioning

confidence: 97%

Strangeness Nuclear Physics – 2010

Gal

2010

Progress of Theoretical Physics Supplement

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“…1 (left panel), the coincidence of the calculated K + spectra and data is satisfactory, especially at high momentum region of K + where Λ spectra and correlations are measured. On the other hand, in the experimental Λ spectrum [6] on 12 C target, we find a peak at around P Λ 0.26 GeV/c, which we cannot reproduce theoretically in INC calculation. This difference can be understood by considering the later evaporation processes of Λ.…”

Section: K + and λ Spectramentioning

confidence: 61%

“…In this paper, we put emphasis on the understanding of Λ momentum spectra which is obtained through the re-analysis of KEK-E224 data [6]. [7,9,6]. The E906 data are still preliminary, and shown in an arbitrary unit.…”

Section: Introductionmentioning

confidence: 99%

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Hyperon distribution and correlation in (K−,K+) reactions

Ohnishi¹,

Hirata²,

Nara³

et al. 2001

Nuclear Physics A

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We analyze the hyperon momentum distribution and correlation in (K − , K + ) reactions on 12 C and 9 Be targets. Both of K + and Λ momentum distributions are well reproduced with the the IntraNuclear Cascade model followed by the statistical evaporation of Λ from hyperon compound nuclei. In the momentum correlation analysis of ΛΛ based on the model source functions, it is shown that strongly attractive ΛΛ interaction is preferred.

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“…The H-dibaryon has been also studied by the experimental approaches. Observation of the double hypernuclei 6 ΛΛ He in the NAGARA event constrains the binding energy of the H-dibaryon as B H < 6.93 MeV because the decay process 6 ΛΛ He → 4 He + H was not found [7,8]. This constraint excludes a deeply bound state.…”

Section: Introductionmentioning

confidence: 99%

Quark Mass Dependence of H-Dibaryon

Yamaguchi

Hyodo

2017

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

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The H-dibaryon is the exotic multiquark state with baryon number 2 and strangeness −2. The existence of the deeply bound H-dibaryon is excluded by the observation of the double hypernuclei. However the recent Lattice QCD simulations have found the bound state below the ΛΛ threshold with large quark masses by HALQCD and NPLQCD collaborations. In this talk, the quark mass dependence of the H-dibaryon mass is discussed using the pionless effective field theory (EFT) where a bare H-dibaryon field is coupled with two-baryon states. We determine the parameters in this theory by fitting the recent Lattice QCD results in the SU(3) limit. As a result, we obtain the attractive scattering length at the physical point where the H-dibaryon is unbound.

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Doubly strange nuclei by a hybrid-emulsion experiment E373 at KEK

Cited by 28 publications

References 0 publications

Strangeness Nuclear Physics – 2010

Strangeness Nuclear Physics – 2010

Hyperon distribution and correlation in (K−,K+) reactions

Quark Mass Dependence of H-Dibaryon

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