Studies of charmed strange baryons in the Λd final state at Belle

Y. Kato, T. Iijima, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, R. Ayad, I. Badhrees, A. M. Bakich, E. Barberio, P. Behera, V. Bhardwaj, B. Bhuyan, J. Biswal, A. Bobrov, A. Bondar, G. Bonvicini, A. Bozek, M. Bračko, T. E. BrowderD. Červenkov, V. Chekelian, B. G. Cheon, K. Chilikin, R. Chistov, K. Cho, V. Chobanova, S. K. Choi, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, N. Dash, S. Di Carlo, Z. DoleŽal, Z. Drásal, D. Dutta, S. Eidelman, D. Epifanov, H. Farhat, J. E. Fast, T. Ferber, B. G. Fulsom, V. Gaur, N. Gabyshev, A. Garmash, R. Gillard, R. Glattauer, P. Goldenzweig, O. Grzymkowska, J. Haba, K. Hayasaka, H. Hayashii, S. Hirose, W. S. Hou, G. Inguglia, A. Ishikawa, R. Itoh, Y. Iwasaki, I. Jaegle, K. K. Joo, T. Julius, E. Kato, C. Kiesling, D. Y. Kim, J. B. Kim, K. T. Kim, S. H. Kim, Y. J. Kim, K. Kinoshita, P. Kodyš, S. Korpar, D. Kotchetkov, P. KriŽan, P. Krokovny, T. Kuhr, A. Kuzmin, Y. J. Kwon, J. S. Lange, C. H. Li, H. Li, L. Li, Y. Li, L. Li Gioi, J. Libby, D. Liventsev, M. Lubej, T. Luo, M. Masuda, T. Matsuda, D. Matvienko, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, S. Mohanty, A. Moll, H. K. Moon, R. Mussa, M. Nakao, T. Nanut, K. J. Nath, Z. Natkaniec, M. Nayak, M. Niiyama, S. Nishida, S. Ogawa, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, B. Pal, C. S. Park, H. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, C. Pulvermacher, J. Rauch, M. Ritter, A. Rostomyan, Y. Sakai, S. Sandilya, L. Santelj, T. Sanuki, V. Savinov, T. Schlüter, O. Schneider, G. Schnell, C. Schwanda, Y. Seino, D. Semmler, K. Senyo, O. Seon, I. S. Seong, M. E. Sevior, C. P. Shen, T. A. Shibata, J. G. Shiu, A. Sokolov, E. Solovieva, M. Starič, M. Sumihama, T. Sumiyoshi, M. Takizawa, K. Tanida, F. Tenchini, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, V. Vorobyev, C. H. Wang, P. Wang, M. Watanabe, Y. Watanabe, S. Wehle, K. M. Williams, E. Won, J. Yamaoka, Y. Yamashita, S. Yashchenko, H. Ye, J. Yelton, Y. Yook, C. Z. Yuan, Z. P. Zhang, V. Zhilich, V. Zhukova, V. Zhulanov, A. Zupanc

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Abstract

We report the discovery of Ξc(3055)0, observed by its decay into the final-state ΛD0, and present the first observation and evidence of the decays of Ξc(3055)+ and Ξc(3080)+ into ΛD+. We also perform a combined analysis of the ΛD+ with the Σc++K- and Σc∗++K- decay modes to measure the ratios of branching fractions, masses and widths with improved accuracy. We measure the ratios of branching fractions B(Ξc(3055)+→ΛD+)/B(Ξc(3055)+→Σc++K-)=5.09±1.01±0.76, B(Ξc(3080)+→ΛD+)/B(Ξc(3080)+→Σc++K-)=1.29±0.30±0.15, and B(Ξc(3080)+→Σc∗++K-)/B(Ξc(3080)+→Σc++K-)=1.07±0.27±0.04, where the uncertainties are statistical and systematic. The analysis is performed using a 980 fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider.

Original languageEnglish
Article number032002
JournalPhysical Review D
Volume94
Issue number3
DOIs
Publication statusPublished - 2016 Aug 8

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