Measurement of masses of the Ξc (2645) and Ξc (2815) baryons and observation of Ξc (2980) → Ξc (2645) π

T. Lesiak; I. Adachi; H. Aihara; K. Arinstein; A. M. Bakich; V. Balagura; E. Barberio; I. Bedny; K. Belous; V. Bhardwaj; U. Bitenc; S. Blyth; A. Bozek; M. Bračko; J. Brodzicka; T. E. Browder; Y. Chao; A. Chen; W. T. Chen; B. G. Cheon; R. Chistov; I. S. Cho; S. K. Choi; Y. Choi; J. Dalseno; M. Dash; S. Eidelman; N. Gabyshev; B. Golob; H. Ha; J. Haba; K. Hayasaka; M. Hazumi; D. Heffernan; Y. Hoshi; W. S. Hou; H. J. Hyun; K. Inami; A. Ishikawa; H. Ishino; R. Itoh; M. Iwasaki; Y. Iwasaki; N. J. Joshi; D. H. Kah; H. Kaji; J. H. Kang; H. Kawai; T. Kawasaki; H. Kichimi; H. J. Kim; S. K. Kim; Y. J. Kim; S. Korpar; P. Križan; P. Krokovny; C. C. Kuo; Y. J. Kwon; S. Lange; J. S. Lee; M. J. Lee; S. E. Lee; J. Li; S. W. Lin; C. Liu; D. Liventsev; F. Mandl; S. McOnie; T. Medvedeva; K. Miyabayashi; H. Miyake; H. Miyata; Y. Miyazaki; R. Mizuk; G. R. Moloney; Y. Nagasaka; M. Nakao; Z. Natkaniec; S. Nishida; O. Nitoh; T. Nozaki; S. Ogawa; T. Ohshima; S. Okuno; H. Ozaki; G. Pakhlova; H. Palka; C. W. Park; H. K. Park; L. S. Peak; R. Pestotnik; L. E. Piilonen; H. Sahoo; Y. Sakai; O. Schneider; K. Senyo; M. E. Sevior; M. Shapkin; H. Shibuya; J. G. Shiu; B. Shwartz; A. Sokolov; S. Stanič; M. Starič; T. Sumiyoshi; F. Takasaki; M. Tanaka; G. N. Taylor; Y. Teramoto; I. Tikhomirov; K. Trabelsi; T. Tsuboyama; S. Uehara; K. Ueno; T. Uglov; Y. Unno; S. Uno; P. Urquijo; G. Varner; K. E. Varvell; K. Vervink; C. C. Wang; C. H. Wang; M. Z. Wang; P. Wang; X. L. Wang; Y. Watanabe; R. Wedd; E. Won; B. D. Yabsley; H. Yamamoto; Y. Yamashita; M. Yamauchi; Z. P. Zhang; V. Zhilich; V. Zhulanov; A. Zupanc; O. Zyukova

doi:10.1016/j.physletb.2008.05.055

Measurement of masses of the Ξ_c (2645) and Ξ_c (2815) baryons and observation of Ξ_c (2980) → Ξ_c (2645) π

T. Lesiak, I. Adachi, H. Aihara, K. Arinstein, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, Y. Chao, A. Chen, W. T. Chen, B. G. CheonR. Chistov, I. S. Cho, S. K. Choi, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, S. Korpar, P. Križan, P. Krokovny, C. C. Kuo, Y. J. Kwon, S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, J. Li, S. W. Lin, C. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, Y. Nagasaka, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, G. Pakhlova, H. Palka, C. W. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. G. Shiu, B. Shwartz, A. Sokolov, S. Stanič, M. Starič, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K. E. Varvell, K. Vervink, C. C. Wang, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, H. Yamamoto, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

Department of Physics

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

33 Scopus citations

Abstract

We report a precise measurement of the masses of the Ξ_c (2645) and Ξ_c (2815) baryons using a data sample of 414 fb^-1 collected by the Belle Collaboration at the KEKB e⁺ e^- collider. The states Ξ_c (2645)^{0, +} are observed in the Ξ_c^{+, 0} π^{-, +} decay modes, while the Ξ_c (2815)^{0, +} are reconstructed in the Ξ_c (2645)^{+, 0} π^{-, +} decay modes. The following mass splittings are determined: m_{Ξc (2645)+} - m_{Ξc (2645)0} = (- 0.1 ± 0.3 (stat) ± 0.6 (syst)) MeV / c² and m_{Ξc (2815)+} - m_{Ξc (2815)0} = (- 3.4 ± 1.9 (stat) ± 0.9 (syst)) MeV / c² with a much better precision than the current world averages. We also observe a new decay mode, Ξ_c (2980)^{0, +} → Ξ_c (2645)^{+, 0} π^{-, +}.

Original language	English
Pages (from-to)	9-15
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	665
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2008.05.055
State	Published - 3 Jul 2008

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10.1016/j.physletb.2008.05.055

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Lesiak, T., Adachi, I., Aihara, H., Arinstein, K., Bakich, A. M., Balagura, V., Barberio, E., Bedny, I., Belous, K., Bhardwaj, V., Bitenc, U., Blyth, S., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chao, Y., Chen, A., Chen, W. T., ... Zyukova, O. (2008). Measurement of masses of the Ξ_c (2645) and Ξ_c (2815) baryons and observation of Ξ_c (2980) → Ξ_c (2645) π. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 665(1), 9-15. https://doi.org/10.1016/j.physletb.2008.05.055

Lesiak, T. ; Adachi, I. ; Aihara, H. ; Arinstein, K. ; Bakich, A. M. ; Balagura, V. ; Barberio, E. ; Bedny, I. ; Belous, K. ; Bhardwaj, V. ; Bitenc, U. ; Blyth, S. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T. E. ; Chao, Y. ; Chen, A. ; Chen, W. T. ; Cheon, B. G. ; Chistov, R. ; Cho, I. S. ; Choi, S. K. ; Choi, Y. ; Dalseno, J. ; Dash, M. ; Eidelman, S. ; Gabyshev, N. ; Golob, B. ; Ha, H. ; Haba, J. ; Hayasaka, K. ; Hazumi, M. ; Heffernan, D. ; Hoshi, Y. ; Hou, W. S. ; Hyun, H. J. ; Inami, K. ; Ishikawa, A. ; Ishino, H. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Joshi, N. J. ; Kah, D. H. ; Kaji, H. ; Kang, J. H. ; Kawai, H. ; Kawasaki, T. ; Kichimi, H. ; Kim, H. J. ; Kim, S. K. ; Kim, Y. J. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kuo, C. C. ; Kwon, Y. J. ; Lange, S. ; Lee, J. S. ; Lee, M. J. ; Lee, S. E. ; Li, J. ; Lin, S. W. ; Liu, C. ; Liventsev, D. ; Mandl, F. ; McOnie, S. ; Medvedeva, T. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Moloney, G. R. ; Nagasaka, Y. ; Nakao, M. ; Natkaniec, Z. ; Nishida, S. ; Nitoh, O. ; Nozaki, T. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Ozaki, H. ; Pakhlova, G. ; Palka, H. ; Park, C. W. ; Park, H. K. ; Peak, L. S. ; Pestotnik, R. ; Piilonen, L. E. ; Sahoo, H. ; Sakai, Y. ; Schneider, O. ; Senyo, K. ; Sevior, M. E. ; Shapkin, M. ; Shibuya, H. ; Shiu, J. G. ; Shwartz, B. ; Sokolov, A. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Takasaki, F. ; Tanaka, M. ; Taylor, G. N. ; Teramoto, Y. ; Tikhomirov, I. ; Trabelsi, K. ; Tsuboyama, T. ; Uehara, S. ; Ueno, K. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Varner, G. ; Varvell, K. E. ; Vervink, K. ; Wang, C. C. ; Wang, C. H. ; Wang, M. Z. ; Wang, P. ; Wang, X. L. ; Watanabe, Y. ; Wedd, R. ; Won, E. ; Yabsley, B. D. ; Yamamoto, H. ; Yamashita, Y. ; Yamauchi, M. ; Zhang, Z. P. ; Zhilich, V. ; Zhulanov, V. ; Zupanc, A. ; Zyukova, O. / Measurement of masses of the Ξ_c (2645) and Ξ_c (2815) baryons and observation of Ξ_c (2980) → Ξ_c (2645) π. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2008 ; Vol. 665, No. 1. pp. 9-15.

@article{469a2423719f41339f3e10d359b64e9e,

title = "Measurement of masses of the Ξc (2645) and Ξc (2815) baryons and observation of Ξc (2980) → Ξc (2645) π",

abstract = "We report a precise measurement of the masses of the Ξc (2645) and Ξc (2815) baryons using a data sample of 414 fb-1 collected by the Belle Collaboration at the KEKB e+ e- collider. The states Ξc (2645)0, + are observed in the Ξc+, 0 π-, + decay modes, while the Ξc (2815)0, + are reconstructed in the Ξc (2645)+, 0 π-, + decay modes. The following mass splittings are determined: mΞc (2645)+ - mΞc (2645)0 = (- 0.1 ± 0.3 (stat) ± 0.6 (syst)) MeV / c2 and mΞc (2815)+ - mΞc (2815)0 = (- 3.4 ± 1.9 (stat) ± 0.9 (syst)) MeV / c2 with a much better precision than the current world averages. We also observe a new decay mode, Ξc (2980)0, + → Ξc (2645)+, 0 π-, +.",

author = "T. Lesiak and I. Adachi and H. Aihara and K. Arinstein and Bakich, {A. M.} and V. Balagura and E. Barberio and I. Bedny and K. Belous and V. Bhardwaj and U. Bitenc and S. Blyth and A. Bozek and M. Bra{\v c}ko and J. Brodzicka and Browder, {T. E.} and Y. Chao and A. Chen and Chen, {W. T.} and Cheon, {B. G.} and R. Chistov and Cho, {I. S.} and Choi, {S. K.} and Y. Choi and J. Dalseno and M. Dash and S. Eidelman and N. Gabyshev and B. Golob and H. Ha and J. Haba and K. Hayasaka and M. Hazumi and D. Heffernan and Y. Hoshi and Hou, {W. S.} and Hyun, {H. J.} and K. Inami and A. Ishikawa and H. Ishino and R. Itoh and M. Iwasaki and Y. Iwasaki and Joshi, {N. J.} and Kah, {D. H.} and H. Kaji and Kang, {J. H.} and H. Kawai and T. Kawasaki and H. Kichimi and Kim, {H. J.} and Kim, {S. K.} and Kim, {Y. J.} and S. Korpar and P. Kri{\v z}an and P. Krokovny and Kuo, {C. C.} and Kwon, {Y. J.} and S. Lange and Lee, {J. S.} and Lee, {M. J.} and Lee, {S. E.} and J. Li and Lin, {S. W.} and C. Liu and D. Liventsev and F. Mandl and S. McOnie and T. Medvedeva and K. Miyabayashi and H. Miyake and H. Miyata and Y. Miyazaki and R. Mizuk and Moloney, {G. R.} and Y. Nagasaka and M. Nakao and Z. Natkaniec and S. Nishida and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and S. Okuno and H. Ozaki and G. Pakhlova and H. Palka and Park, {C. W.} and Park, {H. K.} and Peak, {L. S.} and R. Pestotnik and Piilonen, {L. E.} and H. Sahoo and Y. Sakai and O. Schneider and K. Senyo and Sevior, {M. E.} and M. Shapkin and H. Shibuya and Shiu, {J. G.} and B. Shwartz and A. Sokolov and S. Stani{\v c} and M. Stari{\v c} and T. Sumiyoshi and F. Takasaki and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and I. Tikhomirov and K. Trabelsi and T. Tsuboyama and S. Uehara and K. Ueno and T. Uglov and Y. Unno and S. Uno and P. Urquijo and G. Varner and Varvell, {K. E.} and K. Vervink and Wang, {C. C.} and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and Y. Watanabe and R. Wedd and E. Won and Yabsley, {B. D.} and H. Yamamoto and Y. Yamashita and M. Yamauchi and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and A. Zupanc and O. Zyukova",

note = "Funding Information: We thank the KEKB group for the excellent operation of the accelerator, the KEK cryogenics group for the efficient operation of the solenoid, and the KEK computer group and the National Institute of Informatics for valuable computing and Super-SINET network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology of Japan and the Japan Society for the Promotion of Science; the Australian Research Council and the Australian Department of Education, Science and Training; the National Natural Science Foundation of China under contract Nos. 10575109 and 10775142; the Department of Science and Technology of India; the BK21 program of the Ministry of Education of Korea, the CHEP SRC program and Basic Research program (grant No. R01-2005-000-10089-0) of the Korea Science and Engineering Foundation, and the Pure Basic Research Group program of the Korea Research Foundation; the Polish State Committee for Scientific Research; the Ministry of Education and Science of the Russian Federation and the Russian Federal Agency for Atomic Energy; the Slovenian Research Agency; the Swiss National Science Foundation; the National Science Council and the Ministry of Education of Taiwan; and the US Department of Energy.",

year = "2008",

month = jul,

day = "3",

doi = "10.1016/j.physletb.2008.05.055",

language = "???core.languages.en_GB???",

volume = "665",

pages = "9--15",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

number = "1",

}

Lesiak, T, Adachi, I, Aihara, H, Arinstein, K, Bakich, AM, Balagura, V, Barberio, E, Bedny, I, Belous, K, Bhardwaj, V, Bitenc, U, Blyth, S, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chao, Y, Chen, A, Chen, WT, Cheon, BG, Chistov, R, Cho, IS, Choi, SK, Choi, Y, Dalseno, J, Dash, M, Eidelman, S, Gabyshev, N, Golob, B, Ha, H, Haba, J, Hayasaka, K, Hazumi, M, Heffernan, D, Hoshi, Y, Hou, WS, Hyun, HJ, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwasaki, M, Iwasaki, Y, Joshi, NJ, Kah, DH, Kaji, H, Kang, JH, Kawai, H, Kawasaki, T, Kichimi, H, Kim, HJ, Kim, SK, Kim, YJ, Korpar, S, Križan, P, Krokovny, P, Kuo, CC, Kwon, YJ, Lange, S, Lee, JS, Lee, MJ, Lee, SE, Li, J, Lin, SW, Liu, C, Liventsev, D, Mandl, F, McOnie, S, Medvedeva, T, Miyabayashi, K, Miyake, H, Miyata, H, Miyazaki, Y, Mizuk, R, Moloney, GR, Nagasaka, Y, Nakao, M, Natkaniec, Z, Nishida, S, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okuno, S, Ozaki, H, Pakhlova, G, Palka, H, Park, CW, Park, HK, Peak, LS, Pestotnik, R, Piilonen, LE, Sahoo, H, Sakai, Y, Schneider, O, Senyo, K, Sevior, ME, Shapkin, M, Shibuya, H, Shiu, JG, Shwartz, B, Sokolov, A, Stanič, S, Starič, M, Sumiyoshi, T, Takasaki, F, Tanaka, M, Taylor, GN, Teramoto, Y, Tikhomirov, I, Trabelsi, K, Tsuboyama, T, Uehara, S, Ueno, K, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Varner, G, Varvell, KE, Vervink, K, Wang, CC, Wang, CH, Wang, MZ, Wang, P, Wang, XL, Watanabe, Y, Wedd, R, Won, E, Yabsley, BD, Yamamoto, H, Yamashita, Y, Yamauchi, M, Zhang, ZP, Zhilich, V, Zhulanov, V, Zupanc, A & Zyukova, O 2008, 'Measurement of masses of the Ξ_c (2645) and Ξ_c (2815) baryons and observation of Ξ_c (2980) → Ξ_c (2645) π', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 665, no. 1, pp. 9-15. https://doi.org/10.1016/j.physletb.2008.05.055

Measurement of masses of the Ξ_c (2645) and Ξ_c (2815) baryons and observation of Ξ_c (2980) → Ξ_c (2645) π. / Lesiak, T.; Adachi, I.; Aihara, H.; Arinstein, K.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bedny, I.; Belous, K.; Bhardwaj, V.; Bitenc, U.; Blyth, S.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Chao, Y.; Chen, A.; Chen, W. T.; Cheon, B. G.; Chistov, R.; Cho, I. S.; Choi, S. K.; Choi, Y.; Dalseno, J.; Dash, M.; Eidelman, S.; Gabyshev, N.; Golob, B.; Ha, H.; Haba, J.; Hayasaka, K.; Hazumi, M.; Heffernan, D.; Hoshi, Y.; Hou, W. S.; Hyun, H. J.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Joshi, N. J.; Kah, D. H.; Kaji, H.; Kang, J. H.; Kawai, H.; Kawasaki, T.; Kichimi, H.; Kim, H. J.; Kim, S. K.; Kim, Y. J.; Korpar, S.; Križan, P.; Krokovny, P.; Kuo, C. C.; Kwon, Y. J.; Lange, S.; Lee, J. S.; Lee, M. J.; Lee, S. E.; Li, J.; Lin, S. W.; Liu, C.; Liventsev, D.; Mandl, F.; McOnie, S.; Medvedeva, T.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G. R.; Nagasaka, Y.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Ozaki, H.; Pakhlova, G.; Palka, H.; Park, C. W.; Park, H. K.; Peak, L. S.; Pestotnik, R.; Piilonen, L. E.; Sahoo, H.; Sakai, Y.; Schneider, O.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Shiu, J. G.; Shwartz, B.; Sokolov, A.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Takasaki, F.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tikhomirov, I.; Trabelsi, K.; Tsuboyama, T.; Uehara, S.; Ueno, K.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Varner, G.; Varvell, K. E.; Vervink, K.; Wang, C. C.; Wang, C. H.; Wang, M. Z.; Wang, P.; Wang, X. L.; Watanabe, Y.; Wedd, R.; Won, E.; Yabsley, B. D.; Yamamoto, H.; Yamashita, Y.; Yamauchi, M.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.; Zyukova, O.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 665, No. 1, 03.07.2008, p. 9-15.

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

TY - JOUR

T1 - Measurement of masses of the Ξc (2645) and Ξc (2815) baryons and observation of Ξc (2980) → Ξc (2645) π

AU - Lesiak, T.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Bedny, I.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bitenc, U.

AU - Blyth, S.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Browder, T. E.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, W. T.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Cho, I. S.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Dash, M.

AU - Eidelman, S.

AU - Gabyshev, N.

AU - Golob, B.

AU - Ha, H.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hazumi, M.

AU - Heffernan, D.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hyun, H. J.

AU - Inami, K.

AU - Ishikawa, A.

AU - Ishino, H.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Joshi, N. J.

AU - Kah, D. H.

AU - Kaji, H.

AU - Kang, J. H.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, H. J.

AU - Kim, S. K.

AU - Kim, Y. J.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuo, C. C.

AU - Kwon, Y. J.

AU - Lange, S.

AU - Lee, J. S.

AU - Lee, M. J.

AU - Lee, S. E.

AU - Li, J.

AU - Lin, S. W.

AU - Liu, C.

AU - Liventsev, D.

AU - Mandl, F.

AU - McOnie, S.

AU - Medvedeva, T.

AU - Miyabayashi, K.

AU - Miyake, H.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Moloney, G. R.

AU - Nagasaka, Y.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Ozaki, H.

AU - Pakhlova, G.

AU - Palka, H.

AU - Park, C. W.

AU - Park, H. K.

AU - Peak, L. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Schneider, O.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shibuya, H.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sokolov, A.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Takasaki, F.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tikhomirov, I.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Uehara, S.

AU - Ueno, K.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vervink, K.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, Y.

AU - Wedd, R.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yamamoto, H.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zupanc, A.

AU - Zyukova, O.

N1 - Funding Information: We thank the KEKB group for the excellent operation of the accelerator, the KEK cryogenics group for the efficient operation of the solenoid, and the KEK computer group and the National Institute of Informatics for valuable computing and Super-SINET network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology of Japan and the Japan Society for the Promotion of Science; the Australian Research Council and the Australian Department of Education, Science and Training; the National Natural Science Foundation of China under contract Nos. 10575109 and 10775142; the Department of Science and Technology of India; the BK21 program of the Ministry of Education of Korea, the CHEP SRC program and Basic Research program (grant No. R01-2005-000-10089-0) of the Korea Science and Engineering Foundation, and the Pure Basic Research Group program of the Korea Research Foundation; the Polish State Committee for Scientific Research; the Ministry of Education and Science of the Russian Federation and the Russian Federal Agency for Atomic Energy; the Slovenian Research Agency; the Swiss National Science Foundation; the National Science Council and the Ministry of Education of Taiwan; and the US Department of Energy.

PY - 2008/7/3

Y1 - 2008/7/3

N2 - We report a precise measurement of the masses of the Ξc (2645) and Ξc (2815) baryons using a data sample of 414 fb-1 collected by the Belle Collaboration at the KEKB e+ e- collider. The states Ξc (2645)0, + are observed in the Ξc+, 0 π-, + decay modes, while the Ξc (2815)0, + are reconstructed in the Ξc (2645)+, 0 π-, + decay modes. The following mass splittings are determined: mΞc (2645)+ - mΞc (2645)0 = (- 0.1 ± 0.3 (stat) ± 0.6 (syst)) MeV / c2 and mΞc (2815)+ - mΞc (2815)0 = (- 3.4 ± 1.9 (stat) ± 0.9 (syst)) MeV / c2 with a much better precision than the current world averages. We also observe a new decay mode, Ξc (2980)0, + → Ξc (2645)+, 0 π-, +.

AB - We report a precise measurement of the masses of the Ξc (2645) and Ξc (2815) baryons using a data sample of 414 fb-1 collected by the Belle Collaboration at the KEKB e+ e- collider. The states Ξc (2645)0, + are observed in the Ξc+, 0 π-, + decay modes, while the Ξc (2815)0, + are reconstructed in the Ξc (2645)+, 0 π-, + decay modes. The following mass splittings are determined: mΞc (2645)+ - mΞc (2645)0 = (- 0.1 ± 0.3 (stat) ± 0.6 (syst)) MeV / c2 and mΞc (2815)+ - mΞc (2815)0 = (- 3.4 ± 1.9 (stat) ± 0.9 (syst)) MeV / c2 with a much better precision than the current world averages. We also observe a new decay mode, Ξc (2980)0, + → Ξc (2645)+, 0 π-, +.

UR - http://www.scopus.com/inward/record.url?scp=44749086726&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2008.05.055

DO - 10.1016/j.physletb.2008.05.055

M3 - 期刊論文

AN - SCOPUS:44749086726

VL - 665

SP - 9

EP - 15

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

IS - 1

ER -

Measurement of masses of the Ξc (2645) and Ξc (2815) baryons and observation of Ξc (2980) → Ξc (2645) π

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Measurement of masses of the Ξ_c (2645) and Ξ_c (2815) baryons and observation of Ξ_c (2980) → Ξ_c (2645) π