Search for Λ 6H hypernucleus by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c

H. Sugimura, M. Agnello, Jung Keun Ahn, S. Ajimura, Y. Akazawa, N. Amano, K. Aoki, H. C. Bhang, N. Chiga, M. Endo, P. Evtoukhovitch, A. Feliciello, H. Fujioka, T. Fukuda, S. Hasegawa, S. Hayakawa, R. Honda, K. Hosomi, S. H. Hwang, Y. IchikawaY. Igarashi, K. Imai, N. Ishibashi, R. Iwasaki, C. W. Joo, R. Kiuchi, J. K. Lee, J. Y. Lee, K. Matsuda, Y. Matsumoto, K. Matsuoka, K. Miwa, Y. Mizoi, M. Moritsu, T. Nagae, S. Nagamiya, M. Nakagawa, M. Naruki, H. Noumi, R. Ota, B. J. Roy, P. K. Saha, A. Sakaguchi, H. Sako, C. Samanta, V. Samoilov, Y. Sasaki, S. Sato, M. Sekimoto, Y. Shimizu, T. Shiozaki, K. Shirotori, T. Soyama, T. Takahashi, T. N. Takahashi, H. Tamura, K. Tanabe, T. Tanaka, K. Tanida, A. O. Tokiyasu, Z. Tsamalaidze, M. Ukai, T. O. Yamamoto, Y. Yamamoto, S. B. Yang, K. Yoshida

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Abstract

We have carried out an experiment to search for a neutron-rich hypernucleus, Λ 6H, by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c. The obtained missing-mass spectrum with an estimated energy resolution of 3.2 MeV (FWHM) showed no peak structure corresponding to the Λ 6H hypernucleus neither below nor above the Λ 4H+2n particle decay threshold. An upper limit of the production cross section for the bound Λ 6H hypernucleus was estimated to be 1.2nb/sr at 90% confidence level.

Original languageEnglish
Pages (from-to)39-44
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume729
DOIs
Publication statusPublished - 2014 Feb 5
Externally publishedYes

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hypernuclei
particle decay
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thresholds
cross sections
energy

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Search for Λ 6H hypernucleus by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c. / Sugimura, H.; Agnello, M.; Ahn, Jung Keun; Ajimura, S.; Akazawa, Y.; Amano, N.; Aoki, K.; Bhang, H. C.; Chiga, N.; Endo, M.; Evtoukhovitch, P.; Feliciello, A.; Fujioka, H.; Fukuda, T.; Hasegawa, S.; Hayakawa, S.; Honda, R.; Hosomi, K.; Hwang, S. H.; Ichikawa, Y.; Igarashi, Y.; Imai, K.; Ishibashi, N.; Iwasaki, R.; Joo, C. W.; Kiuchi, R.; Lee, J. K.; Lee, J. Y.; Matsuda, K.; Matsumoto, Y.; Matsuoka, K.; Miwa, K.; Mizoi, Y.; Moritsu, M.; Nagae, T.; Nagamiya, S.; Nakagawa, M.; Naruki, M.; Noumi, H.; Ota, R.; Roy, B. J.; Saha, P. K.; Sakaguchi, A.; Sako, H.; Samanta, C.; Samoilov, V.; Sasaki, Y.; Sato, S.; Sekimoto, M.; Shimizu, Y.; Shiozaki, T.; Shirotori, K.; Soyama, T.; Takahashi, T.; Takahashi, T. N.; Tamura, H.; Tanabe, K.; Tanaka, T.; Tanida, K.; Tokiyasu, A. O.; Tsamalaidze, Z.; Ukai, M.; Yamamoto, T. O.; Yamamoto, Y.; Yang, S. B.; Yoshida, K.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 729, 05.02.2014, p. 39-44.

Research output: Contribution to journalArticle

Sugimura, H, Agnello, M, Ahn, JK, Ajimura, S, Akazawa, Y, Amano, N, Aoki, K, Bhang, HC, Chiga, N, Endo, M, Evtoukhovitch, P, Feliciello, A, Fujioka, H, Fukuda, T, Hasegawa, S, Hayakawa, S, Honda, R, Hosomi, K, Hwang, SH, Ichikawa, Y, Igarashi, Y, Imai, K, Ishibashi, N, Iwasaki, R, Joo, CW, Kiuchi, R, Lee, JK, Lee, JY, Matsuda, K, Matsumoto, Y, Matsuoka, K, Miwa, K, Mizoi, Y, Moritsu, M, Nagae, T, Nagamiya, S, Nakagawa, M, Naruki, M, Noumi, H, Ota, R, Roy, BJ, Saha, PK, Sakaguchi, A, Sako, H, Samanta, C, Samoilov, V, Sasaki, Y, Sato, S, Sekimoto, M, Shimizu, Y, Shiozaki, T, Shirotori, K, Soyama, T, Takahashi, T, Takahashi, TN, Tamura, H, Tanabe, K, Tanaka, T, Tanida, K, Tokiyasu, AO, Tsamalaidze, Z, Ukai, M, Yamamoto, TO, Yamamoto, Y, Yang, SB & Yoshida, K 2014, 'Search for Λ 6H hypernucleus by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 729, pp. 39-44. https://doi.org/10.1016/j.physletb.2013.12.062
Sugimura, H. ; Agnello, M. ; Ahn, Jung Keun ; Ajimura, S. ; Akazawa, Y. ; Amano, N. ; Aoki, K. ; Bhang, H. C. ; Chiga, N. ; Endo, M. ; Evtoukhovitch, P. ; Feliciello, A. ; Fujioka, H. ; Fukuda, T. ; Hasegawa, S. ; Hayakawa, S. ; Honda, R. ; Hosomi, K. ; Hwang, S. H. ; Ichikawa, Y. ; Igarashi, Y. ; Imai, K. ; Ishibashi, N. ; Iwasaki, R. ; Joo, C. W. ; Kiuchi, R. ; Lee, J. K. ; Lee, J. Y. ; Matsuda, K. ; Matsumoto, Y. ; Matsuoka, K. ; Miwa, K. ; Mizoi, Y. ; Moritsu, M. ; Nagae, T. ; Nagamiya, S. ; Nakagawa, M. ; Naruki, M. ; Noumi, H. ; Ota, R. ; Roy, B. J. ; Saha, P. K. ; Sakaguchi, A. ; Sako, H. ; Samanta, C. ; Samoilov, V. ; Sasaki, Y. ; Sato, S. ; Sekimoto, M. ; Shimizu, Y. ; Shiozaki, T. ; Shirotori, K. ; Soyama, T. ; Takahashi, T. ; Takahashi, T. N. ; Tamura, H. ; Tanabe, K. ; Tanaka, T. ; Tanida, K. ; Tokiyasu, A. O. ; Tsamalaidze, Z. ; Ukai, M. ; Yamamoto, T. O. ; Yamamoto, Y. ; Yang, S. B. ; Yoshida, K. / Search for Λ 6H hypernucleus by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2014 ; Vol. 729. pp. 39-44.
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title = "Search for Λ 6H hypernucleus by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c",
abstract = "We have carried out an experiment to search for a neutron-rich hypernucleus, Λ 6H, by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c. The obtained missing-mass spectrum with an estimated energy resolution of 3.2 MeV (FWHM) showed no peak structure corresponding to the Λ 6H hypernucleus neither below nor above the Λ 4H+2n particle decay threshold. An upper limit of the production cross section for the bound Λ 6H hypernucleus was estimated to be 1.2nb/sr at 90{\%} confidence level.",
keywords = "Missing-mass spectroscopy, Neutron-rich Λ-hypernuclei",
author = "H. Sugimura and M. Agnello and Ahn, {Jung Keun} and S. Ajimura and Y. Akazawa and N. Amano and K. Aoki and Bhang, {H. C.} and N. Chiga and M. Endo and P. Evtoukhovitch and A. Feliciello and H. Fujioka and T. Fukuda and S. Hasegawa and S. Hayakawa and R. Honda and K. Hosomi and Hwang, {S. H.} and Y. Ichikawa and Y. Igarashi and K. Imai and N. Ishibashi and R. Iwasaki and Joo, {C. W.} and R. Kiuchi and Lee, {J. K.} and Lee, {J. Y.} and K. Matsuda and Y. Matsumoto and K. Matsuoka and K. Miwa and Y. Mizoi and M. Moritsu and T. Nagae and S. Nagamiya and M. Nakagawa and M. Naruki and H. Noumi and R. Ota and Roy, {B. J.} and Saha, {P. K.} and A. Sakaguchi and H. Sako and C. Samanta and V. Samoilov and Y. Sasaki and S. Sato and M. Sekimoto and Y. Shimizu and T. Shiozaki and K. Shirotori and T. Soyama and T. Takahashi and Takahashi, {T. N.} and H. Tamura and K. Tanabe and T. Tanaka and K. Tanida and Tokiyasu, {A. O.} and Z. Tsamalaidze and M. Ukai and Yamamoto, {T. O.} and Y. Yamamoto and Yang, {S. B.} and K. Yoshida",
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TY - JOUR

T1 - Search for Λ 6H hypernucleus by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c

AU - Sugimura, H.

AU - Agnello, M.

AU - Ahn, Jung Keun

AU - Ajimura, S.

AU - Akazawa, Y.

AU - Amano, N.

AU - Aoki, K.

AU - Bhang, H. C.

AU - Chiga, N.

AU - Endo, M.

AU - Evtoukhovitch, P.

AU - Feliciello, A.

AU - Fujioka, H.

AU - Fukuda, T.

AU - Hasegawa, S.

AU - Hayakawa, S.

AU - Honda, R.

AU - Hosomi, K.

AU - Hwang, S. H.

AU - Ichikawa, Y.

AU - Igarashi, Y.

AU - Imai, K.

AU - Ishibashi, N.

AU - Iwasaki, R.

AU - Joo, C. W.

AU - Kiuchi, R.

AU - Lee, J. K.

AU - Lee, J. Y.

AU - Matsuda, K.

AU - Matsumoto, Y.

AU - Matsuoka, K.

AU - Miwa, K.

AU - Mizoi, Y.

AU - Moritsu, M.

AU - Nagae, T.

AU - Nagamiya, S.

AU - Nakagawa, M.

AU - Naruki, M.

AU - Noumi, H.

AU - Ota, R.

AU - Roy, B. J.

AU - Saha, P. K.

AU - Sakaguchi, A.

AU - Sako, H.

AU - Samanta, C.

AU - Samoilov, V.

AU - Sasaki, Y.

AU - Sato, S.

AU - Sekimoto, M.

AU - Shimizu, Y.

AU - Shiozaki, T.

AU - Shirotori, K.

AU - Soyama, T.

AU - Takahashi, T.

AU - Takahashi, T. N.

AU - Tamura, H.

AU - Tanabe, K.

AU - Tanaka, T.

AU - Tanida, K.

AU - Tokiyasu, A. O.

AU - Tsamalaidze, Z.

AU - Ukai, M.

AU - Yamamoto, T. O.

AU - Yamamoto, Y.

AU - Yang, S. B.

AU - Yoshida, K.

PY - 2014/2/5

Y1 - 2014/2/5

N2 - We have carried out an experiment to search for a neutron-rich hypernucleus, Λ 6H, by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c. The obtained missing-mass spectrum with an estimated energy resolution of 3.2 MeV (FWHM) showed no peak structure corresponding to the Λ 6H hypernucleus neither below nor above the Λ 4H+2n particle decay threshold. An upper limit of the production cross section for the bound Λ 6H hypernucleus was estimated to be 1.2nb/sr at 90% confidence level.

AB - We have carried out an experiment to search for a neutron-rich hypernucleus, Λ 6H, by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c. The obtained missing-mass spectrum with an estimated energy resolution of 3.2 MeV (FWHM) showed no peak structure corresponding to the Λ 6H hypernucleus neither below nor above the Λ 4H+2n particle decay threshold. An upper limit of the production cross section for the bound Λ 6H hypernucleus was estimated to be 1.2nb/sr at 90% confidence level.

KW - Missing-mass spectroscopy

KW - Neutron-rich Λ-hypernuclei

UR - http://www.scopus.com/inward/record.url?scp=84903458758&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84903458758&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2013.12.062

DO - 10.1016/j.physletb.2013.12.062

M3 - Article

AN - SCOPUS:84903458758

VL - 729

SP - 39

EP - 44

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

ER -