Search for the deeply bound K- pp state from the semi-inclusive forward-neutron spectrum in the in-flight K- reaction on helium-3

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

doi:10.1093/ptep/ptv076

Search for the deeply bound K^- pp state from the semi-inclusive forward-neutron spectrum in the in-flight K^- reaction on helium-3

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

Research Center for Electron Photon Science (ELPH)

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

26 Citations (Scopus)

Abstract

An experiment to search for the K^- pp bound state was performed via the in-flight ³He(K^-, n) reaction using 5.3 × 10⁹ kaons at 1GeV/c at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at θ_n^lab = 0°, no significant peak was observed in the region corresponding to K^- pp binding energy larger than 80MeV, where a bump structure has been reported in the Λp final state in different reactions. Assuming the state to be isotropically decaying into Λp, mass-dependent upper limits on the production cross section were determined to be 30-180, 70-250, and 100-270 μb/sr, for the natural widths of 20, 60, and 100MeV, respectively, at 95% confidence level.

Original language	English
Article number	061D01
Journal	Progress of Theoretical and Experimental Physics
Volume	2015
Issue number	6
DOIs	https://doi.org/10.1093/ptep/ptv076
Publication status	Published - 2015

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1093/ptep/ptv076

Cite this

Hashimoto, T., Ajimura, S., Beer, G., Bhang, H., Bragadireanu, M., Busso, L., Cargnelli, M., Choi, S., Curceanu, C., Enomoto, S., Faso, D., Fujioka, H., Fujiwara, Y., Fukuda, T., Guaraldo, C., Hayano, R. S., Hiraiwa, T., Iio, M., Iliescu, M., ... Zmeskal, J. (2015). Search for the deeply bound K^- pp state from the semi-inclusive forward-neutron spectrum in the in-flight K^- reaction on helium-3. Progress of Theoretical and Experimental Physics, 2015(6), [061D01]. https://doi.org/10.1093/ptep/ptv076

Hashimoto, T, Ajimura, S, Beer, G, Bhang, H, Bragadireanu, M, Busso, L, Cargnelli, M, Choi, S, Curceanu, C, Enomoto, S, Faso, D, Fujioka, H, Fujiwara, Y, Fukuda, T, Guaraldo, C, Hayano, RS, Hiraiwa, T, Iio, M, Iliescu, M, Inoue, K, Ishiguro, Y, Ishikawa, T, Ishimoto, S, Itahashi, K, Iwai, M, Iwasaki, M, Kato, Y, Kawasaki, S, Kienle, P, Kou, H, Ma, Y, Marton, J, Matsuda, Y, Mizoi, Y, Morra, O, Nagae, T, Noumi, H, Ohnishi, H, Okada, S, Outa, H, Piscicchia, K, Lener, MP, Vidal, AR, Sada, Y, Sakaguchi, A, Sakuma, F, Sato, M, Scordo, A, Sekimoto, M, Shi, H, Sirghi, D, Sirghi, F, Suzuki, S, Suzuki, T, Tanida, K, Tatsuno, H, Tokuda, M, Tomono, D, Toyoda, A, Tsukada, K, Doce, OV, Widmann, E, Yamaga, T, Yamazaki, T, Yim, H, Zhang, Q & Zmeskal, J 2015, 'Search for the deeply bound K^- pp state from the semi-inclusive forward-neutron spectrum in the in-flight K^- reaction on helium-3', Progress of Theoretical and Experimental Physics, vol. 2015, no. 6, 061D01. https://doi.org/10.1093/ptep/ptv076

@article{b3e5f621e43f4b3cba6f3644870c31b0,

title = "Search for the deeply bound K- pp state from the semi-inclusive forward-neutron spectrum in the in-flight K- reaction on helium-3",

abstract = "An experiment to search for the K- pp bound state was performed via the in-flight 3He(K-, n) reaction using 5.3 × 109 kaons at 1GeV/c at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at θnlab = 0°, no significant peak was observed in the region corresponding to K- pp binding energy larger than 80MeV, where a bump structure has been reported in the Λp final state in different reactions. Assuming the state to be isotropically decaying into Λp, mass-dependent upper limits on the production cross section were determined to be 30-180, 70-250, and 100-270 μb/sr, for the natural widths of 20, 60, and 100MeV, respectively, at 95% confidence level.",

author = "T. Hashimoto and S. Ajimura and G. Beer and H. Bhang and M. Bragadireanu 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 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 K. Itahashi and M. Iwai and M. Iwasaki and Y. Kato and S. Kawasaki and P. Kienle 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 Lener, {M. Poli} 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 D. Sirghi and F. Sirghi 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 T. Yamaga and T. Yamazaki and H. Yim and Q. Zhang and J. Zmeskal",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2015.",

year = "2015",

doi = "10.1093/ptep/ptv076",

language = "English",

volume = "2015",

journal = "Progress of Theoretical and Experimental Physics",

issn = "2050-3911",

publisher = "Oxford University Press",

number = "6",

}

TY - JOUR

T1 - Search for the deeply bound K- pp state from the semi-inclusive forward-neutron spectrum in the in-flight K- reaction on helium-3

AU - Hashimoto, T.

AU - Ajimura, S.

AU - Beer, G.

AU - Bhang, H.

AU - Bragadireanu, M.

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 - 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 - Itahashi, K.

AU - Iwai, M.

AU - Iwasaki, M.

AU - Kato, Y.

AU - Kawasaki, S.

AU - Kienle, P.

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 - Lener, M. Poli

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 - Sirghi, D.

AU - Sirghi, F.

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 - Yamaga, T.

AU - Yamazaki, T.

AU - Yim, H.

AU - Zhang, Q.

AU - Zmeskal, J.

PY - 2015

Y1 - 2015

N2 - An experiment to search for the K- pp bound state was performed via the in-flight 3He(K-, n) reaction using 5.3 × 109 kaons at 1GeV/c at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at θnlab = 0°, no significant peak was observed in the region corresponding to K- pp binding energy larger than 80MeV, where a bump structure has been reported in the Λp final state in different reactions. Assuming the state to be isotropically decaying into Λp, mass-dependent upper limits on the production cross section were determined to be 30-180, 70-250, and 100-270 μb/sr, for the natural widths of 20, 60, and 100MeV, respectively, at 95% confidence level.

AB - An experiment to search for the K- pp bound state was performed via the in-flight 3He(K-, n) reaction using 5.3 × 109 kaons at 1GeV/c at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at θnlab = 0°, no significant peak was observed in the region corresponding to K- pp binding energy larger than 80MeV, where a bump structure has been reported in the Λp final state in different reactions. Assuming the state to be isotropically decaying into Λp, mass-dependent upper limits on the production cross section were determined to be 30-180, 70-250, and 100-270 μb/sr, for the natural widths of 20, 60, and 100MeV, respectively, at 95% confidence level.

UR - http://www.scopus.com/inward/record.url?scp=84942244713&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84942244713&partnerID=8YFLogxK

U2 - 10.1093/ptep/ptv076

DO - 10.1093/ptep/ptv076

M3 - Article

AN - SCOPUS:84942244713

SN - 2050-3911

VL - 2015

JO - Progress of Theoretical and Experimental Physics

JF - Progress of Theoretical and Experimental Physics

IS - 6

M1 - 061D01

ER -

Search for the deeply bound K^- pp state from the semi-inclusive forward-neutron spectrum in the in-flight K^- reaction on helium-3

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this