Search for doubly charmed baryons and study of charmed strange baryons at Belle Academic Article uri icon

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abstract

  • 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_c^0pi^+(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.

authors

  • Kato, Y
  • Iijima, T
  • Adachi, I
  • Aihara, H
  • Asner, DM
  • Aushev, T
  • Bakich, AM
  • Bala, A
  • Ban, Y
  • Bhardwaj, V
  • Bhuyan, B
  • Bobrov, A
  • Bonvicini, G
  • Bozek, A
  • Bračko, M
  • Browder, TE
  • Červenkov, D
  • Chekelian, V
  • Chen, Alan
  • Cheon, BG
  • Chilikin, K
  • Chistov, R
  • Cho, K
  • Chobanova, V
  • Choi, Y
  • Cinabro, D
  • Dalseno, J
  • Danilov, M
  • Doležal, Z
  • Drásal, Z
  • Drutskoy, A
  • Dutta, D
  • Dutta, K
  • Eidelman, S
  • Farhat, H
  • Fast, JE
  • Ferber, T
  • Gaur, V
  • Gabyshev, N
  • Ganguly, S
  • Garmash, A
  • Gillard, R
  • Goh, YM
  • Golob, B
  • Haba, J
  • Hayasaka, K
  • Hayashii, H
  • He, XH
  • Horii, Y
  • Hoshi, Y
  • Hou, W-S
  • Hsiung, YB
  • Inami, K
  • Ishikawa, A
  • Iwasaki, Y
  • Iwashita, T
  • Jaegle, I
  • Julius, T
  • Kang, JH
  • Kato, E
  • Kawasaki, T
  • Kiesling, C
  • Kim, DY
  • Kim, HJ
  • Kim, JB
  • Kim, JH
  • Kim, MJ
  • Kim, YJ
  • Klucar, J
  • Ko, BR
  • Kodyš, P
  • Korpar, S
  • Krokovny, P
  • Kuhr, T
  • Kuzmin, A
  • Kwon, Y-J
  • Lee, S-H
  • Li, J
  • Li, Y
  • Li Gioi, L
  • 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, NK
  • Nishida, S
  • Nitoh, O
  • Ogawa, S
  • Okuno, S
  • Pakhlov, P
  • Pakhlova, G
  • Park, CW
  • Park, H
  • Park, HK
  • Pedlar, TK
  • Peng, T
  • Pestotnik, R
  • Petrič, M
  • Piilonen, LE
  • Ritter, M
  • Röhrken, 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, CP
  • Shibata, T-A
  • Shiu, J-G
  • Shwartz, B
  • Sibidanov, A
  • Sohn, Y-S
  • Sokolov, A
  • Solovieva, E
  • Stanič, S
  • Starič, 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, MN
  • Wang, CH
  • Wang, M-Z
  • Wang, P
  • Watanabe, M
  • Watanabe, Y
  • Williams, KM
  • Won, E
  • Yamashita, Y
  • Yashchenko, S
  • Zhang, ZP
  • Zhilich, V
  • Zhulanov, V
  • Zupanc, A

publication date

  • March 17, 2014