Observation of hypernuclear fine structure in Λ16O

M. Ukai; O. Hashimoto; Y. Miura; T. Miyoshi; K. Mizunuma; S. N. Nakamura; Y. Okayasu; H. Tamura; S. Ajimura; T. Kishimoto; T. Hayakawa; S. Minami; H. Akikawa; K. Imai; H. Takahashi; D. E. Alburger; R. E. Chrien; H. Hotchi; M. May; P. Pile; A. Rusek; R. Sutter; T. Nagae; Y. Sato; A. Banu; G. B. Franklin; B. P. Quinn; J. Franz; K. Nakazawa; K. Tanida; L. Tang; L. Yuan

doi:10.1016/j.nuclphysa.2005.02.127

Observation of hypernuclear fine structure in _Λ¹⁶O

M. Ukai, O. Hashimoto, Y. Miura, T. Miyoshi, K. Mizunuma, S. N. Nakamura, Y. Okayasu, H. Tamura, S. Ajimura, T. Kishimoto, T. Hayakawa, S. Minami, H. Akikawa, K. Imai, H. Takahashi, D. E. Alburger, R. E. Chrien, H. Hotchi, M. May, P. PileA. Rusek, R. Sutter, T. Nagae, Y. Sato, A. Banu, G. B. Franklin, B. P. Quinn, J. Franz, K. Nakazawa, K. Tanida, L. Tang, L. Yuan

SCI - Physics

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

Abstract

We observed two γ-ray transitions of _Λ¹⁶O in the ¹⁶O(K^-, π^- γ) reaction using a germanium detector array, Hyperball. The γ rays are assigned as the M1 transitions from the 6 MeV excited state (1^-) to the ground state doublet (1^-, 0^-). The energies of the γ rays are 6534.1 ± 1.5 keV and 6560.2 ± 1.3 keV, and the energy spacing is 26.1 ± 2.0 keV, which corresponds to the ground state doublet spacing. From their yield ratio of 0.65±0.11/N (6560)), the spin order of the ground state doublet is determined. This result gives a small value for the ΛN tensor force strength.

Original language	English
Pages (from-to)	70-74
Number of pages	5
Journal	Nuclear Physics A
Volume	754
Issue number	1-4 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.nuclphysa.2005.02.127
Publication status	Published - 2005 May 30

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.nuclphysa.2005.02.127

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Ukai, M., Hashimoto, O., Miura, Y., Miyoshi, T., Mizunuma, K., Nakamura, S. N., Okayasu, Y., Tamura, H., Ajimura, S., Kishimoto, T., Hayakawa, T., Minami, S., Akikawa, H., Imai, K., Takahashi, H., Alburger, D. E., Chrien, R. E., Hotchi, H., May, M., ... Yuan, L. (2005). Observation of hypernuclear fine structure in _Λ¹⁶O. Nuclear Physics A, 754(1-4 SPEC. ISS.), 70-74. https://doi.org/10.1016/j.nuclphysa.2005.02.127

Ukai, M, Hashimoto, O, Miura, Y, Miyoshi, T, Mizunuma, K, Nakamura, SN, Okayasu, Y, Tamura, H, Ajimura, S, Kishimoto, T, Hayakawa, T, Minami, S, Akikawa, H, Imai, K, Takahashi, H, Alburger, DE, Chrien, RE, Hotchi, H, May, M, Pile, P, Rusek, A, Sutter, R, Nagae, T, Sato, Y, Banu, A, Franklin, GB, Quinn, BP, Franz, J, Nakazawa, K, Tanida, K, Tang, L & Yuan, L 2005, 'Observation of hypernuclear fine structure in _Λ¹⁶O', Nuclear Physics A, vol. 754, no. 1-4 SPEC. ISS., pp. 70-74. https://doi.org/10.1016/j.nuclphysa.2005.02.127

@article{000cb5eacc4844aab631ce623ea16f10,

title = "Observation of hypernuclear fine structure in Λ16O",

abstract = "We observed two γ-ray transitions of Λ16O in the 16O(K-, π- γ) reaction using a germanium detector array, Hyperball. The γ rays are assigned as the M1 transitions from the 6 MeV excited state (1-) to the ground state doublet (1-, 0-). The energies of the γ rays are 6534.1 ± 1.5 keV and 6560.2 ± 1.3 keV, and the energy spacing is 26.1 ± 2.0 keV, which corresponds to the ground state doublet spacing. From their yield ratio of 0.65±0.11/N (6560)), the spin order of the ground state doublet is determined. This result gives a small value for the ΛN tensor force strength.",

author = "M. Ukai and O. Hashimoto and Y. Miura and T. Miyoshi and K. Mizunuma and Nakamura, {S. N.} and Y. Okayasu and H. Tamura and S. Ajimura and T. Kishimoto and T. Hayakawa and S. Minami and H. Akikawa and K. Imai and H. Takahashi and Alburger, {D. E.} and Chrien, {R. E.} and H. Hotchi and M. May and P. Pile and A. Rusek and R. Sutter and T. Nagae and Y. Sato and A. Banu and Franklin, {G. B.} and Quinn, {B. P.} and J. Franz and K. Nakazawa and K. Tanida and L. Tang and L. Yuan",

year = "2005",

month = may,

day = "30",

doi = "10.1016/j.nuclphysa.2005.02.127",

language = "English",

volume = "754",

pages = "70--74",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

number = "1-4 SPEC. ISS.",

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TY - JOUR

T1 - Observation of hypernuclear fine structure in Λ16O

AU - Ukai, M.

AU - Hashimoto, O.

AU - Miura, Y.

AU - Miyoshi, T.

AU - Mizunuma, K.

AU - Nakamura, S. N.

AU - Okayasu, Y.

AU - Tamura, H.

AU - Ajimura, S.

AU - Kishimoto, T.

AU - Hayakawa, T.

AU - Minami, S.

AU - Akikawa, H.

AU - Imai, K.

AU - Takahashi, H.

AU - Alburger, D. E.

AU - Chrien, R. E.

AU - Hotchi, H.

AU - May, M.

AU - Pile, P.

AU - Rusek, A.

AU - Sutter, R.

AU - Nagae, T.

AU - Sato, Y.

AU - Banu, A.

AU - Franklin, G. B.

AU - Quinn, B. P.

AU - Franz, J.

AU - Nakazawa, K.

AU - Tanida, K.

AU - Tang, L.

AU - Yuan, L.

PY - 2005/5/30

Y1 - 2005/5/30

N2 - We observed two γ-ray transitions of Λ16O in the 16O(K-, π- γ) reaction using a germanium detector array, Hyperball. The γ rays are assigned as the M1 transitions from the 6 MeV excited state (1-) to the ground state doublet (1-, 0-). The energies of the γ rays are 6534.1 ± 1.5 keV and 6560.2 ± 1.3 keV, and the energy spacing is 26.1 ± 2.0 keV, which corresponds to the ground state doublet spacing. From their yield ratio of 0.65±0.11/N (6560)), the spin order of the ground state doublet is determined. This result gives a small value for the ΛN tensor force strength.

AB - We observed two γ-ray transitions of Λ16O in the 16O(K-, π- γ) reaction using a germanium detector array, Hyperball. The γ rays are assigned as the M1 transitions from the 6 MeV excited state (1-) to the ground state doublet (1-, 0-). The energies of the γ rays are 6534.1 ± 1.5 keV and 6560.2 ± 1.3 keV, and the energy spacing is 26.1 ± 2.0 keV, which corresponds to the ground state doublet spacing. From their yield ratio of 0.65±0.11/N (6560)), the spin order of the ground state doublet is determined. This result gives a small value for the ΛN tensor force strength.

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UR - http://www.scopus.com/inward/citedby.url?scp=17644375429&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysa.2005.02.127

DO - 10.1016/j.nuclphysa.2005.02.127

M3 - Article

AN - SCOPUS:17644375429

SN - 0375-9474

VL - 754

SP - 70

EP - 74

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-4 SPEC. ISS.

ER -

Observation of hypernuclear fine structure in _Λ¹⁶O

Abstract

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