抄録
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-, +.
本文言語 | English |
---|---|
ページ(範囲) | 9-15 |
ページ数 | 7 |
ジャーナル | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
巻 | 665 |
号 | 1 |
DOI | |
出版ステータス | Published - 7月 3 2008 |
外部発表 | はい |
ASJC Scopus subject areas
- 核物理学および高エネルギー物理学
フィンガープリント
「Measurement of masses of the Ξc (2645) and Ξc (2815) baryons and observation of Ξc (2980) → Ξc (2645) π」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。引用スタイル
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In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 665, No. 1, 03.07.2008, p. 9-15.
研究成果 › 査読
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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
UR - http://www.scopus.com/inward/citedby.url?scp=44749086726&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2008.05.055
DO - 10.1016/j.physletb.2008.05.055
M3 - Article
AN - SCOPUS:44749086726
SN - 0370-2693
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
IS - 1
ER -