Study of the elementary (K -, n) reactions to search for the K  NN bound state via the 3He (K -, n) reaction at J-PARC

Takumi Yamaga; S. Ajimura; G. Beer; C. Berucci; H. Bhang; M. Bragadireanu; P. Buehler; L. Busso; M. Cargnelli; S. Choi; C. Curceanu; S. Enomoto; D. Faso; H. Fujioka; Y. Fujiwara; T. Fukuda; C. Guaraldo; T. Hashimoto; R. S. Hayano; T. Hiraiwa; M. Iio; M. Iliescu; K. Inoue; Y. Ishiguro; T. Ishikawa; S. Ishimoto; T. Ishiwatari; K. Itahashi; M. Iwai; M. Iwasaki; K. Kanno; K. Kato; Y. Kato; S. Kawasaki; P. Kienle; T. Kim; H. Kou; Y. Ma; J. Marton; Y. Matsuda; Y. Mizoi; O. Morra; T. Nagae; H. Noumi; H. Ohnishi; S. Okada; H. Outa; K. Piscicchia; A. Romero Vidal; Y. Sada; A. Sakaguchi; F. Sakuma; M. Sato; A. Scordo; M. Sekimoto; H. Shi; K. Shirotori; D. Sirghi; F. Sirghi; K. Suzuki; S. Suzuki; T. Suzuki; K. Tanida; H. Tatsuno; M. Tokuda; D. Tomono; A. Toyoda; K. Tsukada; O. Vazquez Doce; E. Widmann; B. K. Wuenschek; T. Yamazaki; H. Yim; Q. Zhang; J. Zmeskal

doi:10.1063/1.4949411

Study of the elementary (K ^-, n) reactions to search for the K NN bound state via the ³He (K ^-, n) reaction at J-PARC

Takumi Yamaga, S. Ajimura, G. Beer, C. Berucci, H. Bhang, M. Bragadireanu, P. Buehler, L. Busso, M. Cargnelli, S. Choi, C. Curceanu, S. Enomoto, D. Faso, H. Fujioka, Y. Fujiwara, T. Fukuda, C. Guaraldo, T. Hashimoto, R. S. Hayano, T. HiraiwaM. Iio, M. Iliescu, K. Inoue, Y. Ishiguro, T. Ishikawa, S. Ishimoto, T. Ishiwatari, K. Itahashi, M. Iwai, M. Iwasaki, K. Kanno, K. Kato, Y. Kato, S. Kawasaki, P. Kienle, T. Kim, H. Kou, Y. Ma, J. Marton, Y. Matsuda, Y. Mizoi, O. Morra, T. Nagae, H. Noumi, H. Ohnishi, S. Okada, H. Outa, K. Piscicchia, A. Romero Vidal, Y. Sada, A. Sakaguchi, F. Sakuma, M. Sato, A. Scordo, M. Sekimoto, H. Shi, K. Shirotori, D. Sirghi, F. Sirghi, K. Suzuki, S. Suzuki, T. Suzuki, K. Tanida, H. Tatsuno, M. Tokuda, D. Tomono, A. Toyoda, K. Tsukada, O. Vazquez Doce, E. Widmann, B. K. Wuenschek, T. Yamazaki, H. Yim, Q. Zhang, J. Zmeskal

Research Center for Electron Photon Science (ELPH)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We have searched for the simplest kaonic nuclear state, K̄NN, using the in-flight ³He (K^-, n) reaction at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at θnlab=0°, an excess of yield was observed just below the K^- pp mass-threshold, which cannot be explained by any elementary reactions [PTEP 2015, 061D01]. To understand the missing-mass spectrum of ³He (K^-, n) X, we investigated the elementary (K^-, n) reactions using hydrogen and deuterium targets. The p (K^-, n) X missing-mass spectrum was well described by the charge-exchange reaction. However, in the d (K^-, n) X spectrum, we observed an excess of yield just below the K^- p mass-threshold, which was similar to that in the ³He (K^-, n) X spectrum.

Original language	English
Title of host publication	XVIth International Conference on Hadron Spectroscopy, Hadron 2015
Editors	Michael R. Pennington
Publisher	American Institute of Physics Inc.
ISBN (Electronic)	9780735413894
DOIs	https://doi.org/10.1063/1.4949411
Publication status	Published - 2016 May 25
Event	16th International Conference on Hadron Spectroscopy, Hadron 2015 - Newport News, United States Duration: 2015 Sept 13 → 2015 Sept 18

Publication series

Name	AIP Conference Proceedings
Volume	1735
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	16th International Conference on Hadron Spectroscopy, Hadron 2015
Country/Territory	United States
City	Newport News
Period	15/9/13 → 15/9/18

Access to Document

10.1063/1.4949411

Cite this

Yamaga, T., Ajimura, S., Beer, G., Berucci, C., Bhang, H., Bragadireanu, M., Buehler, P., Busso, L., Cargnelli, M., Choi, S., Curceanu, C., Enomoto, S., Faso, D., Fujioka, H., Fujiwara, Y., Fukuda, T., Guaraldo, C., Hashimoto, T., Hayano, R. S., ... Zmeskal, J. (2016). Study of the elementary (K ^-, n) reactions to search for the K NN bound state via the ³He (K ^-, n) reaction at J-PARC. In M. R. Pennington (Ed.), XVIth International Conference on Hadron Spectroscopy, Hadron 2015 Article 40007 (AIP Conference Proceedings; Vol. 1735). American Institute of Physics Inc.. https://doi.org/10.1063/1.4949411

@inproceedings{2fb6c4efe380499cbaa3b69929a04287,

title = "Study of the elementary (K -, n) reactions to search for the K NN bound state via the 3He (K -, n) reaction at J-PARC",

abstract = "We have searched for the simplest kaonic nuclear state, {\=K}NN, using the in-flight 3He (K-, n) reaction at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at θnlab=0°, an excess of yield was observed just below the K- pp mass-threshold, which cannot be explained by any elementary reactions [PTEP 2015, 061D01]. To understand the missing-mass spectrum of 3He (K-, n) X, we investigated the elementary (K-, n) reactions using hydrogen and deuterium targets. The p (K-, n) X missing-mass spectrum was well described by the charge-exchange reaction. However, in the d (K-, n) X spectrum, we observed an excess of yield just below the K- p mass-threshold, which was similar to that in the 3He (K-, n) X spectrum.",

author = "Takumi Yamaga and S. Ajimura and G. Beer and C. Berucci and H. Bhang and M. Bragadireanu and P. Buehler and L. Busso and M. Cargnelli and S. Choi and C. Curceanu and S. Enomoto and D. Faso and H. Fujioka and Y. Fujiwara and T. Fukuda and C. Guaraldo and T. Hashimoto and Hayano, {R. S.} and T. Hiraiwa and M. Iio and M. Iliescu and K. Inoue and Y. Ishiguro and T. Ishikawa and S. Ishimoto and T. Ishiwatari and K. Itahashi and M. Iwai and M. Iwasaki and K. Kanno and K. Kato and Y. Kato and S. Kawasaki and P. Kienle and T. Kim and H. Kou and Y. Ma and J. Marton and Y. Matsuda and Y. Mizoi and O. Morra and T. Nagae and H. Noumi and H. Ohnishi and S. Okada and H. Outa and K. Piscicchia and Vidal, {A. Romero} and Y. Sada and A. Sakaguchi and F. Sakuma and M. Sato and A. Scordo and M. Sekimoto and H. Shi and K. Shirotori and D. Sirghi and F. Sirghi and K. Suzuki and S. Suzuki and T. Suzuki and K. Tanida and H. Tatsuno and M. Tokuda and D. Tomono and A. Toyoda and K. Tsukada and Doce, {O. Vazquez} and E. Widmann and Wuenschek, {B. K.} and T. Yamazaki and H. Yim and Q. Zhang and J. Zmeskal",

note = "Publisher Copyright: {\textcopyright} 2016 Author(s).; 16th International Conference on Hadron Spectroscopy, Hadron 2015 ; Conference date: 13-09-2015 Through 18-09-2015",

year = "2016",

month = may,

day = "25",

doi = "10.1063/1.4949411",

language = "English",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics Inc.",

editor = "Pennington, {Michael R.}",

booktitle = "XVIth International Conference on Hadron Spectroscopy, Hadron 2015",

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Yamaga, T, Ajimura, S, Beer, G, Berucci, C, Bhang, H, Bragadireanu, M, Buehler, P, Busso, L, Cargnelli, M, Choi, S, Curceanu, C, Enomoto, S, Faso, D, Fujioka, H, Fujiwara, Y, Fukuda, T, Guaraldo, C, Hashimoto, T, Hayano, RS, Hiraiwa, T, Iio, M, Iliescu, M, Inoue, K, Ishiguro, Y, Ishikawa, T, Ishimoto, S, Ishiwatari, T, Itahashi, K, Iwai, M, Iwasaki, M, Kanno, K, Kato, K, Kato, Y, Kawasaki, S, Kienle, P, Kim, T, Kou, H, Ma, Y, Marton, J, Matsuda, Y, Mizoi, Y, Morra, O, Nagae, T, Noumi, H, Ohnishi, H, Okada, S, Outa, H, Piscicchia, K, Vidal, AR, Sada, Y, Sakaguchi, A, Sakuma, F, Sato, M, Scordo, A, Sekimoto, M, Shi, H, Shirotori, K, Sirghi, D, Sirghi, F, Suzuki, K, Suzuki, S, Suzuki, T, Tanida, K, Tatsuno, H, Tokuda, M, Tomono, D, Toyoda, A, Tsukada, K, Doce, OV, Widmann, E, Wuenschek, BK, Yamazaki, T, Yim, H, Zhang, Q & Zmeskal, J 2016, Study of the elementary (K ^-, n) reactions to search for the K NN bound state via the ³He (K ^-, n) reaction at J-PARC. in MR Pennington (ed.), XVIth International Conference on Hadron Spectroscopy, Hadron 2015., 40007, AIP Conference Proceedings, vol. 1735, American Institute of Physics Inc., 16th International Conference on Hadron Spectroscopy, Hadron 2015, Newport News, United States, 15/9/13. https://doi.org/10.1063/1.4949411

Study of the elementary (K ^-, n) reactions to search for the K NN bound state via the ³He (K ^-, n) reaction at J-PARC. / Yamaga, Takumi; Ajimura, S.; Beer, G. et al.
XVIth International Conference on Hadron Spectroscopy, Hadron 2015. ed. / Michael R. Pennington. American Institute of Physics Inc., 2016. 40007 (AIP Conference Proceedings; Vol. 1735).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Study of the elementary (K -, n) reactions to search for the K NN bound state via the 3He (K -, n) reaction at J-PARC

AU - Yamaga, Takumi

AU - Ajimura, S.

AU - Beer, G.

AU - Berucci, C.

AU - Bhang, H.

AU - Bragadireanu, M.

AU - Buehler, P.

AU - Busso, L.

AU - Cargnelli, M.

AU - Choi, S.

AU - Curceanu, C.

AU - Enomoto, S.

AU - Faso, D.

AU - Fujioka, H.

AU - Fujiwara, Y.

AU - Fukuda, T.

AU - Guaraldo, C.

AU - Hashimoto, T.

AU - Hayano, R. S.

AU - Hiraiwa, T.

AU - Iio, M.

AU - Iliescu, M.

AU - Inoue, K.

AU - Ishiguro, Y.

AU - Ishikawa, T.

AU - Ishimoto, S.

AU - Ishiwatari, T.

AU - Itahashi, K.

AU - Iwai, M.

AU - Iwasaki, M.

AU - Kanno, K.

AU - Kato, K.

AU - Kato, Y.

AU - Kawasaki, S.

AU - Kienle, P.

AU - Kim, T.

AU - Kou, H.

AU - Ma, Y.

AU - Marton, J.

AU - Matsuda, Y.

AU - Mizoi, Y.

AU - Morra, O.

AU - Nagae, T.

AU - Noumi, H.

AU - Ohnishi, H.

AU - Okada, S.

AU - Outa, H.

AU - Piscicchia, K.

AU - Vidal, A. Romero

AU - Sada, Y.

AU - Sakaguchi, A.

AU - Sakuma, F.

AU - Sato, M.

AU - Scordo, A.

AU - Sekimoto, M.

AU - Shi, H.

AU - Shirotori, K.

AU - Sirghi, D.

AU - Sirghi, F.

AU - Suzuki, K.

AU - Suzuki, S.

AU - Suzuki, T.

AU - Tanida, K.

AU - Tatsuno, H.

AU - Tokuda, M.

AU - Tomono, D.

AU - Toyoda, A.

AU - Tsukada, K.

AU - Doce, O. Vazquez

AU - Widmann, E.

AU - Wuenschek, B. K.

AU - Yamazaki, T.

AU - Yim, H.

AU - Zhang, Q.

AU - Zmeskal, J.

PY - 2016/5/25

Y1 - 2016/5/25

N2 - We have searched for the simplest kaonic nuclear state, K̄NN, using the in-flight 3He (K-, n) reaction at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at θnlab=0°, an excess of yield was observed just below the K- pp mass-threshold, which cannot be explained by any elementary reactions [PTEP 2015, 061D01]. To understand the missing-mass spectrum of 3He (K-, n) X, we investigated the elementary (K-, n) reactions using hydrogen and deuterium targets. The p (K-, n) X missing-mass spectrum was well described by the charge-exchange reaction. However, in the d (K-, n) X spectrum, we observed an excess of yield just below the K- p mass-threshold, which was similar to that in the 3He (K-, n) X spectrum.

AB - We have searched for the simplest kaonic nuclear state, K̄NN, using the in-flight 3He (K-, n) reaction at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at θnlab=0°, an excess of yield was observed just below the K- pp mass-threshold, which cannot be explained by any elementary reactions [PTEP 2015, 061D01]. To understand the missing-mass spectrum of 3He (K-, n) X, we investigated the elementary (K-, n) reactions using hydrogen and deuterium targets. The p (K-, n) X missing-mass spectrum was well described by the charge-exchange reaction. However, in the d (K-, n) X spectrum, we observed an excess of yield just below the K- p mass-threshold, which was similar to that in the 3He (K-, n) X spectrum.

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U2 - 10.1063/1.4949411

DO - 10.1063/1.4949411

M3 - Conference contribution

AN - SCOPUS:84984539759

T3 - AIP Conference Proceedings

BT - XVIth International Conference on Hadron Spectroscopy, Hadron 2015

A2 - Pennington, Michael R.

PB - American Institute of Physics Inc.

T2 - 16th International Conference on Hadron Spectroscopy, Hadron 2015

Y2 - 13 September 2015 through 18 September 2015

ER -

Yamaga T, Ajimura S, Beer G, Berucci C, Bhang H, Bragadireanu M et al. Study of the elementary (K ^-, n) reactions to search for the K NN bound state via the ³He (K ^-, n) reaction at J-PARC. In Pennington MR, editor, XVIth International Conference on Hadron Spectroscopy, Hadron 2015. American Institute of Physics Inc. 2016. 40007. (AIP Conference Proceedings). doi: 10.1063/1.4949411