Gamma-ray spectroscopy of hypernuclei - present and future

H. Tamura; K. Hosomi; S. Bufalino; N. Chiga; P. Evtoukhovitch; A. Feliciello; R. Honda; T. Koike; Y. Ma; K. Miwa; A. Sasaki; Y. Sasaki; K. Shirotori; K. Tanida; Z. Tsamalaidze; M. Ukai; T. O. Yamamoto; S. B. Yang

doi:10.1016/j.nuclphysa.2013.03.014

Gamma-ray spectroscopy of hypernuclei - present and future

H. Tamura, K. Hosomi, S. Bufalino, N. Chiga, P. Evtoukhovitch, A. Feliciello, R. Honda, T. Koike, Y. Ma, K. Miwa, A. Sasaki, Y. Sasaki, K. Shirotori, K. Tanida, Z. Tsamalaidze, M. Ukai, T. O. Yamamoto, S. B. Yang

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

18 Citations (Scopus)

Abstract

Recent results and future directions of the γ-ray spectroscopy of Λ hypernuclei are discussed. A further analysis of the last KEK experiment (E566) has revealed a new γ transition in ¹²_ΛC at 6048keV (preliminary), which is ascribed to the M1(13-→11-) transition. At J-PARC, studies will be extended from p-shell to s-shell and sd-shell hypernuclei. In the first part of the J-PARC E13 experiment, we will measure the ⁴_ΛHe(^{1 +} → ^{0 +}) transition to study charge-symmetry breaking in the ΛN interaction and investigate the ¹⁹_ΛF hypernucleus to study ΛN spin-spin interaction further using one of the sd-shell hypernuclei. In the second part of E13, we will precisely measure the spin-flip B(M1) value for the ⁷_ΛLi(3/^{2 +} → 1/^{2 +}) transition. Beyond E13, we plan to study impurity effects by observing possible changes in nuclear deformation caused by the presence of a Λ in sd-shell hypernuclei, as well as to investigate various heavier Λ hypernuclei in order to precisely determine the energies of Λ single-particle orbits.

Original language	English
Pages (from-to)	99-108
Number of pages	10
Journal	Nuclear Physics A
Volume	914
DOIs	https://doi.org/10.1016/j.nuclphysa.2013.03.014
Publication status	Published - 2013 Sep

Keywords

Impurity effect
J-PARC
Λ hypernuclei
ΛN interaction
γ-Ray spectroscopy

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.nuclphysa.2013.03.014

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Tamura, H., Hosomi, K., Bufalino, S., Chiga, N., Evtoukhovitch, P., Feliciello, A., Honda, R., Koike, T., Ma, Y., Miwa, K., Sasaki, A., Sasaki, Y., Shirotori, K., Tanida, K., Tsamalaidze, Z., Ukai, M., Yamamoto, T. O., & Yang, S. B. (2013). Gamma-ray spectroscopy of hypernuclei - present and future. Nuclear Physics A, 914, 99-108. https://doi.org/10.1016/j.nuclphysa.2013.03.014

Gamma-ray spectroscopy of hypernuclei - present and future. / Tamura, H.; Hosomi, K.; Bufalino, S.; Chiga, N.; Evtoukhovitch, P.; Feliciello, A.; Honda, R.; Koike, T.; Ma, Y.; Miwa, K.; Sasaki, A.; Sasaki, Y.; Shirotori, K.; Tanida, K.; Tsamalaidze, Z.; Ukai, M.; Yamamoto, T. O.; Yang, S. B.

In: Nuclear Physics A, Vol. 914, 09.2013, p. 99-108.

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

@article{870fc166ddd148f6aae02b59afef50f2,

title = "Gamma-ray spectroscopy of hypernuclei - present and future",

abstract = "Recent results and future directions of the γ-ray spectroscopy of Λ hypernuclei are discussed. A further analysis of the last KEK experiment (E566) has revealed a new γ transition in 12ΛC at 6048keV (preliminary), which is ascribed to the M1(13-→11-) transition. At J-PARC, studies will be extended from p-shell to s-shell and sd-shell hypernuclei. In the first part of the J-PARC E13 experiment, we will measure the 4ΛHe(1 + → 0 +) transition to study charge-symmetry breaking in the ΛN interaction and investigate the 19ΛF hypernucleus to study ΛN spin-spin interaction further using one of the sd-shell hypernuclei. In the second part of E13, we will precisely measure the spin-flip B(M1) value for the 7ΛLi(3/2 + → 1/2 +) transition. Beyond E13, we plan to study impurity effects by observing possible changes in nuclear deformation caused by the presence of a Λ in sd-shell hypernuclei, as well as to investigate various heavier Λ hypernuclei in order to precisely determine the energies of Λ single-particle orbits.",

keywords = "Impurity effect, J-PARC, Λ hypernuclei, ΛN interaction, γ-Ray spectroscopy",

author = "H. Tamura and K. Hosomi and S. Bufalino and N. Chiga and P. Evtoukhovitch and A. Feliciello and R. Honda and T. Koike and Y. Ma and K. Miwa and A. Sasaki and Y. Sasaki and K. Shirotori and K. Tanida and Z. Tsamalaidze and M. Ukai and Yamamoto, {T. O.} and Yang, {S. B.}",

note = "Funding Information: The authors thank to all the members of the KEK E566 and J-PARC E13 experiments. This work is supported by Grants-in-Aid Nos. 17070001 , 23244043 , and 24105003 for Scientific Research from the Ministry of Education of Japan . Copyright: Copyright 2013 Elsevier B.V., All rights reserved.",

year = "2013",

month = sep,

doi = "10.1016/j.nuclphysa.2013.03.014",

language = "English",

volume = "914",

pages = "99--108",

journal = "Nuclear Physics A",

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T1 - Gamma-ray spectroscopy of hypernuclei - present and future

AU - Tamura, H.

AU - Hosomi, K.

AU - Bufalino, S.

AU - Chiga, N.

AU - Evtoukhovitch, P.

AU - Feliciello, A.

AU - Honda, R.

AU - Koike, T.

AU - Ma, Y.

AU - Miwa, K.

AU - Sasaki, A.

AU - Sasaki, Y.

AU - Shirotori, K.

AU - Tanida, K.

AU - Tsamalaidze, Z.

AU - Ukai, M.

AU - Yamamoto, T. O.

AU - Yang, S. B.

N1 - Funding Information: The authors thank to all the members of the KEK E566 and J-PARC E13 experiments. This work is supported by Grants-in-Aid Nos. 17070001 , 23244043 , and 24105003 for Scientific Research from the Ministry of Education of Japan . Copyright: Copyright 2013 Elsevier B.V., All rights reserved.

PY - 2013/9

Y1 - 2013/9

N2 - Recent results and future directions of the γ-ray spectroscopy of Λ hypernuclei are discussed. A further analysis of the last KEK experiment (E566) has revealed a new γ transition in 12ΛC at 6048keV (preliminary), which is ascribed to the M1(13-→11-) transition. At J-PARC, studies will be extended from p-shell to s-shell and sd-shell hypernuclei. In the first part of the J-PARC E13 experiment, we will measure the 4ΛHe(1 + → 0 +) transition to study charge-symmetry breaking in the ΛN interaction and investigate the 19ΛF hypernucleus to study ΛN spin-spin interaction further using one of the sd-shell hypernuclei. In the second part of E13, we will precisely measure the spin-flip B(M1) value for the 7ΛLi(3/2 + → 1/2 +) transition. Beyond E13, we plan to study impurity effects by observing possible changes in nuclear deformation caused by the presence of a Λ in sd-shell hypernuclei, as well as to investigate various heavier Λ hypernuclei in order to precisely determine the energies of Λ single-particle orbits.

AB - Recent results and future directions of the γ-ray spectroscopy of Λ hypernuclei are discussed. A further analysis of the last KEK experiment (E566) has revealed a new γ transition in 12ΛC at 6048keV (preliminary), which is ascribed to the M1(13-→11-) transition. At J-PARC, studies will be extended from p-shell to s-shell and sd-shell hypernuclei. In the first part of the J-PARC E13 experiment, we will measure the 4ΛHe(1 + → 0 +) transition to study charge-symmetry breaking in the ΛN interaction and investigate the 19ΛF hypernucleus to study ΛN spin-spin interaction further using one of the sd-shell hypernuclei. In the second part of E13, we will precisely measure the spin-flip B(M1) value for the 7ΛLi(3/2 + → 1/2 +) transition. Beyond E13, we plan to study impurity effects by observing possible changes in nuclear deformation caused by the presence of a Λ in sd-shell hypernuclei, as well as to investigate various heavier Λ hypernuclei in order to precisely determine the energies of Λ single-particle orbits.

KW - Impurity effect

KW - J-PARC

KW - Λ hypernuclei

KW - ΛN interaction

KW - γ-Ray spectroscopy

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U2 - 10.1016/j.nuclphysa.2013.03.014

DO - 10.1016/j.nuclphysa.2013.03.014

M3 - Article

AN - SCOPUS:84883465627

VL - 914

SP - 99

EP - 108

JO - Nuclear Physics A

JF - Nuclear Physics A

SN - 0375-9474

ER -

Gamma-ray spectroscopy of hypernuclei - present and future

Abstract

Keywords

ASJC Scopus subject areas

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