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          Institute: MPI für Physik     Collection: YB 2016     Display Documents

ID: 715990.0, MPI für Physik / YB 2016
Measurements of the masses and widths of the $\\Sigma_{c}(2455)^{0/++}$ and $\\Sigma_{c}(2520)^{0/++}$ baryons
Authors:Belle Collaboration; Lee, S. -H.; Ko, B. R.; Won, E.; Abdesselam, A.; Adachi, I.; Aihara, H.; Asner, D. M.; Aushev, T.; Ayad, R.; Bakich, A. M.; Bala, A.; Bansal, V.; Bhardwaj, V.; Bhuyan, B.; Bonvicini, G.; Bozek, A.; Browder, T. E.; Červenkov, D.; Chen, A.; Cheon, B. G.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Dalseno, J.; Danilov, M.; Doležal, Z.; Drásal, Z.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Farhat, H.; Fast, J. E.; Ferber, T.; Frey, A.; Gaur, V.; Gabyshev, N.; Ganguly, S.; Garmash, A.; Gillard, R.; Goh, Y. M.; Golob, B.; Hayashii, H.; He, X. H.; Hoshi, Y.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Iwashita, T.; Jaegle, I.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, B. H.; Kim, D. Y.; Kim, J. B.; Kim, J. H.; Kim, M. J.; Kinoshita, K.; Klucar, J.; Kodyš, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumita, T.; Kwon, Y. -J.; Lange, J. S.; Li, Y.; Li Gioi, L.; Libby, J.; Liventsev, D.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Moll, A.; Mori, T.; Mussa, R.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nayak, M.; Nedelkovska, E.; Nisar, N. K.; Nishida, S.; Nitoh, O.; Ogawa, S.; Okuno, S.; Pakhlov, P.; Pakhlova, G.; Park, H. K.; Pedlar, T. K.; Peng, T.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Poluektov, A.; Ribežl, E.; Ritter, M.; Röhrken, M.; Rostomyan, A.; Ryu, S.; Sahoo, H.; Saito, T.; Sakai, K.; Sakai, Y.; Sandilya, S.; Santel, D.; Santelj, L.; Sanuki, T.; Sato, Y.; Schneider, O.; Schnell, G.; Schwanda, C.; Semmler, D.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Sibidanov, A.; Sohn, Y. -S.; Solovieva, E.; Stanič, S.; Starič, M.; Steder, M.; Sumihama, M.; Sumiyoshi, T.; Tamponi, U.; Tanida, K.; Teramoto, Y.; Trabelsi, K.; Uchida, M.; Uehara, S.; Uglov, T.; Uno, S.; Van Hulse, C.; Vanhoefer, P.; Varner, G.; Varvell, K. E.; Vinokurova, A.; Wagner, M. N.; Wang, C. H.; Wang, P.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Yamashita, Y.; Yashchenko, S.; Yook, Y.; Yuan, C. Z.; Zhilich, V.; Zhulanov, V.; Zupanc, A.
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:We present measurements of the masses and decay widths of the baryonic states $\\Sigma_{c}(2455)^{0/++}$ and $\\Sigma_{c}(2520)^{0/++}$ using a data sample corresponding to an integrated luminosity of 711 fb$^{-1}$ collected with the Belle detector at the KEKB $e^{+}e^{-}$ asymmetric-energy collider operating at the $\\Upsilon(4S)$ resonance. We report the mass differences with respect to the $\\Lambda_{c}^{+}$ baryon $M(\\Sigma_{c}(2455)^{0})-M(\\Lambda_{c}^{+}) = 167.29\\pm0.01\\pm0.02$ MeV/$c^{2}$, $M(\\Sigma_{c}(2455)^{++})-M(\\Lambda_{c}^{+}) = 167.51\\pm0.01\\pm0.02$ MeV/$c^{2}$, $M(\\Sigma_{c}(2520)^{0})-M(\\Lambda_{c}^{+}) = 231.98\\pm0.11\\pm0.04$ MeV/$c^{2}$, $M(\\Sigma_{c}(2520)^{++})-M(\\Lambda_{c}^{+}) = 231.99\\pm0.10\\pm0.02$ MeV/$c^{2}$, and the decay widths $\\Gamma(\\Sigma_{c}(2455)^{0}) = 1.76\\pm0.04^{+0.09}_{-0.21}$ MeV/$c^{2}$, $\\Gamma(\\Sigma_{c}(2455)^{++}) = 1.84\\pm0.04^{+0.07}_{-0.20}$ MeV/$c^{2}$, $\\Gamma(\\Sigma_{c}(2520)^{0}) = 15.41\\pm0.41^{+0.20}_{-0.32}$ MeV/$c^{2}$, $\\Gamma(\\Sigma_{c}(2520)^{++}) = 14.77\\pm0.25^{+0.18}_{-0.30}$ MeV/$c^{2}$, where the first uncertainties are statistical and the second are systematic. The isospin mass splittings are measured to be $M(\\Sigma_{c}(2455)^{++})-M(\\Sigma_{c}(2455)^{0})=0.22\\pm0.01\\pm0.01$ MeV/$c^{2}$ and $M(\\Sigma_{c}(2520)^{++})-M(\\Sigma_{c}(2520)^{0})=0.01\\pm0.15\\pm0.03$ MeV/$c^{2}$. These results are the most precise to date.
Classification / Thesaurus:Belle II
Comment of the Author/Creator:13 pages, 4 figures
Document Type:Article
Communicated by:MPI für Physik
Affiliations:MPI für Physik
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