Search for doubly charmed baryons and study of charmed strange baryons at Belle

Kato, Y. ; Iijima, T. ; Adachi, I. ; Aihara, H. ; Asner, D. M. ; Aushev, T. ; Bakich, A. M. ; Bala, A. ; Ban, Y. ; Bhardwaj, V. ; Bhuyan, B. ; Bobrov, A. ; Bonvicini, G. ; Bozek, A. ; Bracko, M. ; Browder, T. E. ; Cervenkov, D. ; Chekelian, V. ; Chen, A. ; Cheon, B. G. ; Chilikin, K. ; Chistov, R. ; Cho, K. ; Chobanova, V. ; Choi, Y. ; Cinabro, D. ; Dalseno, J. ; Danilov, M. ; Dolezal, Z. ; Drasal, Z. ; Drutskoy, A. ; Dutta, D. ; Dutta, K. ; Eidelman, S. ; Farhat, H. ; Fast, J. E. ; Ferber, T. ; Gaur, V. ; Gabyshev, N. ; Ganguly, S. ; Garmash, A. ; Gillard, R. ; Goh, Y. M. ; Golob, B. ; Haba, J. ; Hayasaka, K. ; Hayashii, H. ; He, X. H. ; Horii, Y. ; Hoshi, Y. ; Hou, W-S. ; Hsiung, Y. B. ; Inami, K. ; Ishikawa, A. ; Iwasaki, Y. ; Iwashita, T. ; Jaegle, I. ; Julius, T. ; Kang, J. H. ; Kato, E. ; Kawasaki, T. ; Kiesling, C. ; Kim, D. Y. ; Kim, H. J. ; Kim, J. B. ; Kim, J. H. ; Kim, M. J. ; Kim, Y. J. ; Klucar, J. ; Ko, B. R. ; Kodys, P. ; Korpar, S. ; Krokovny, P. ; Kuhr, T. ; Kuzmin, A. ; Kwon, Y. -J. ; Lee, S. -H. ; Li, J. ; Li, Y. ; Gioi, L. Li ; Libby, J. ; Liu, Y. ; Liventsev, D. ; Matvienko, D. ; Miyabayashi, K. ; Miyata, H. ; Mizuk, R. ; Moll, A. ; Muramatsu, N. ; Mussa, R. ; Nagasaka, Y. ; Nakano, E. ; Nakao, M. ; Nakazawa, H. ; Nayak, M. ; Nedelkovska, E. ; Ng, C. ; Niiyama, M. ; Nisar, N. K. ; Nishida, S. ; Nitoh, O. ; Ogawa, S. ; Okuno, S. ; Pakhlov, P. ; Pakhlova, G. ; Park, C. W. ; Park, H. ; Park, H. K. ; Pedlar, T. K. ; Peng, T. ; Pestotnik, R. ; Petric, M. ; Piilonen, L. E. ; Ritter, M. ; Roehrken, M. ; Rostomyan, A. ; Sahoo, H. ; Saito, T. ; Sakai, Y. ; Sandilya, S. ; Santelj, L. ; Sanuki, T. ; Savinov, V. ; Schneider, O. ; Schnell, G. ; Schwanda, C. ; Semmler, D. ; Senyo, K. ; Seon, O. ; Shapkin, M. ; Shen, C. P. ; Shibata, T. -A. ; Shiu, J. -G. ; Shwartz, B. ; Sibidanov, A. ; Sohn, Y. -S. ; Sokolov, A. ; Solovieva, E. ; Stanic, S. ; Staric, M. ; Steder, M. ; Sumihama, M. ; Sumiyoshi, T. ; Tamponi, U. ; Tanida, K. ; Tatishvili, G. ; Teramoto, Y. ; Uchida, M. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Van Hulse, C. ; Vanhoefer, P. ; Varner, G. ; Vinokurova, A. ; Vorobyev, V. ; Wagner, M. N. ; Wang, C. H. ; Wang, M. -Z. ; Wang, P. ; Watanabe, M. ; Watanabe, Y. ; Williams, K. M. ; Won, E. ; Yamashita, Y. ; Yashchenko, S. ; Zhang, Z. P. ; Zhilich, V. ; Zhulanov, V. ; Zupanc, A. ; Belle Collaboration

We report results of a study of doubly charmed baryons and charmed strange baryons. The analysis is performed using a 980 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We search for doubly charmed baryons Xi(+(+))(cc) with the Lambda(+)(c) K- pi(+)(pi(+) ) and. Xi(0)(c) pi(+)(pi(+)) final states. No significant signal is observed. We also search for two excited charmed strange baryons, Xi(c)(3055)(+) and Xi(c)(3123)(+) with the Sigma(++)(c)(2455)K- and Sigma(++)(c)(2520)K- final states. The Xi(c)(3055)(+) signal is observed with a significance of 6.6 standard deviations including systematic uncertainty, while no signature of the Xi(c)(3123)(+) is seen. We also study properties of the Xi(c)(2645)(+) and measure a width of 2.6 +/- 0.2(stat) +/- 0.4(syst) MeV/c(2), which is the first significant determination.


Published in:
Physical Review D, 89, 5, 052003
Year:
2014
Publisher:
College Pk, Amer Physical Soc
ISSN:
1550-7998
Laboratories:




 Record created 2014-05-19, last modified 2018-12-03


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