Three-Body nonmesonic weak decay of the CΛ12 hypernucleus

M. Kim; S. Ajimura; K. Aoki; A. Banu; H. Bhang; T. Fukuda; O. Hashimoto; J. I. Hwang; S. Kameoka; B. H. Kang; E. Kim; J. H. Kim; T. Maruta; Y. Miura; Y. Miyake; T. Nagae; M. Nakamura; S. N. Nakamura; H. Noumi; S. Okada; Y. Okayasu; H. Outa; H. Park; P. K. Saha; Y. Sato; M. Sekimoto; T. Takahashi; H. Tamura; K. Tanida; A. Toyoda; K. Tshoo; K. Tsukada; T. Watanabe; H. J. Yim

doi:10.1103/PhysRevLett.103.182502

Three-Body nonmesonic weak decay of the CΛ12 hypernucleus

M. Kim, S. Ajimura, K. Aoki, A. Banu, H. Bhang, T. Fukuda, O. Hashimoto, J. I. Hwang, S. Kameoka, B. H. Kang, E. Kim, J. H. Kim, T. Maruta, Y. Miura, Y. Miyake, T. Nagae, M. Nakamura, S. N. Nakamura, H. Noumi, S. OkadaY. Okayasu, H. Outa, H. Park, P. K. Saha, Y. Sato, M. Sekimoto, T. Takahashi, H. Tamura, K. Tanida, A. Toyoda, K. Tshoo, K. Tsukada, T. Watanabe, H. J. Yim

School of Earth System Sciences

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

45 Scopus citations

Abstract

We have measured the branching ratio of the three-body process in the nonmesonic weak decay of CΛ12 to be 0.29±0.13. This result was obtained by reproducing the nucleon and the nucleon pair yields introducing a measured final state interaction. At the same time, we have determined the absolute decay widths, Γn and Γp, along with Γ2N, whose relative ratio has been a long-standing puzzle. Including the three-body process, we have successfully reproduced the nucleon energy distribution, the coincidence two-nucleon angular correlation, and the momentum sum distribution simultaneously.

Original language	English
Article number	182502
Journal	Physical Review Letters
Volume	103
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.103.182502
State	Published - 30 Oct 2009

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Kim, M., Ajimura, S., Aoki, K., Banu, A., Bhang, H., Fukuda, T., Hashimoto, O., Hwang, J. I., Kameoka, S., Kang, B. H., Kim, E., Kim, J. H., Maruta, T., Miura, Y., Miyake, Y., Nagae, T., Nakamura, M., Nakamura, S. N., Noumi, H., ... Yim, H. J. (2009). Three-Body nonmesonic weak decay of the CΛ12 hypernucleus. Physical Review Letters, 103(18), Article 182502. https://doi.org/10.1103/PhysRevLett.103.182502

@article{4a9ee2087f5c4431935d7a881f821ba1,

title = "Three-Body nonmesonic weak decay of the CΛ12 hypernucleus",

abstract = "We have measured the branching ratio of the three-body process in the nonmesonic weak decay of CΛ12 to be 0.29±0.13. This result was obtained by reproducing the nucleon and the nucleon pair yields introducing a measured final state interaction. At the same time, we have determined the absolute decay widths, Γn and Γp, along with Γ2N, whose relative ratio has been a long-standing puzzle. Including the three-body process, we have successfully reproduced the nucleon energy distribution, the coincidence two-nucleon angular correlation, and the momentum sum distribution simultaneously.",

author = "M. Kim and S. Ajimura and K. Aoki and A. Banu and H. Bhang and T. Fukuda and O. Hashimoto and Hwang, \{J. I.\} and S. Kameoka and Kang, \{B. H.\} and E. Kim and Kim, \{J. H.\} and T. Maruta and Y. Miura and Y. Miyake and T. Nagae and M. Nakamura and Nakamura, \{S. N.\} and H. Noumi and S. Okada and Y. Okayasu and H. Outa and H. Park and Saha, \{P. K.\} and Y. Sato and M. Sekimoto and T. Takahashi and H. Tamura and K. Tanida and A. Toyoda and K. Tshoo and K. Tsukada and T. Watanabe and Yim, \{H. J.\}",

year = "2009",

month = oct,

day = "30",

doi = "10.1103/PhysRevLett.103.182502",

language = "English",

volume = "103",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "18",

}

Kim, M, Ajimura, S, Aoki, K, Banu, A, Bhang, H, Fukuda, T, Hashimoto, O, Hwang, JI, Kameoka, S, Kang, BH, Kim, E, Kim, JH, Maruta, T, Miura, Y, Miyake, Y, Nagae, T, Nakamura, M, Nakamura, SN, Noumi, H, Okada, S, Okayasu, Y, Outa, H, Park, H, Saha, PK, Sato, Y, Sekimoto, M, Takahashi, T, Tamura, H, Tanida, K, Toyoda, A, Tshoo, K, Tsukada, K, Watanabe, T & Yim, HJ 2009, 'Three-Body nonmesonic weak decay of the CΛ12 hypernucleus', Physical Review Letters, vol. 103, no. 18, 182502. https://doi.org/10.1103/PhysRevLett.103.182502

TY - JOUR

T1 - Three-Body nonmesonic weak decay of the CΛ12 hypernucleus

AU - Kim, M.

AU - Ajimura, S.

AU - Aoki, K.

AU - Banu, A.

AU - Bhang, H.

AU - Fukuda, T.

AU - Hashimoto, O.

AU - Hwang, J. I.

AU - Kameoka, S.

AU - Kang, B. H.

AU - Kim, E.

AU - Kim, J. H.

AU - Maruta, T.

AU - Miura, Y.

AU - Miyake, Y.

AU - Nagae, T.

AU - Nakamura, M.

AU - Nakamura, S. N.

AU - Noumi, H.

AU - Okada, S.

AU - Okayasu, Y.

AU - Outa, H.

AU - Park, H.

AU - Saha, P. K.

AU - Sato, Y.

AU - Sekimoto, M.

AU - Takahashi, T.

AU - Tamura, H.

AU - Tanida, K.

AU - Toyoda, A.

AU - Tshoo, K.

AU - Tsukada, K.

AU - Watanabe, T.

AU - Yim, H. J.

PY - 2009/10/30

Y1 - 2009/10/30

N2 - We have measured the branching ratio of the three-body process in the nonmesonic weak decay of CΛ12 to be 0.29±0.13. This result was obtained by reproducing the nucleon and the nucleon pair yields introducing a measured final state interaction. At the same time, we have determined the absolute decay widths, Γn and Γp, along with Γ2N, whose relative ratio has been a long-standing puzzle. Including the three-body process, we have successfully reproduced the nucleon energy distribution, the coincidence two-nucleon angular correlation, and the momentum sum distribution simultaneously.

AB - We have measured the branching ratio of the three-body process in the nonmesonic weak decay of CΛ12 to be 0.29±0.13. This result was obtained by reproducing the nucleon and the nucleon pair yields introducing a measured final state interaction. At the same time, we have determined the absolute decay widths, Γn and Γp, along with Γ2N, whose relative ratio has been a long-standing puzzle. Including the three-body process, we have successfully reproduced the nucleon energy distribution, the coincidence two-nucleon angular correlation, and the momentum sum distribution simultaneously.

UR - https://www.scopus.com/pages/publications/70350774076

U2 - 10.1103/PhysRevLett.103.182502

DO - 10.1103/PhysRevLett.103.182502

M3 - Article

AN - SCOPUS:70350774076

SN - 0031-9007

VL - 103

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

M1 - 182502

ER -

Three-Body nonmesonic weak decay of the CΛ12 hypernucleus

Abstract

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