| Literature DB >> 12225136 |
M Mattson1, G Alkhazov, A G Atamantchouk, M Y Balatz, N F Bondar, P S Cooper, L J Dauwe, G V Davidenko, U Dersch, A G Dolgolenko, G B Dzyubenko, R Edelstein, L Emediato, A M F Endler, J Engelfried, I Eschrich, C O Escobar, A V Evdokimov, I S Filimonov, F G Garcia, M Gaspero, I Giller, V L Golovtsov, P Gouffon, E Gülmez, He Kangling, M Iori, S Y Jun, M Kaya, J Kilmer, V T Kim, L M Kochenda, I Konorov, A P Kozhevnikov, A G Krivshich, H Krüger, M A Kubantsev, V P Kubarovsky, A I Kulyavtsev, N P Kuropatkin, V F Kurshetsov, A Kushnirenko, S Kwan, J Lach, A Lamberto, L G Landsberg, I Larin, E M Leikin, Li Yunshan, M Luksys, T Lungov, V P Maleev, D Mao, Mao Chensheng, Mao Zhenlin, P Mathew, V Matveev, E McCliment, M A Moinester, V V Molchanov, A Morelos, K D Nelson, A V Nemitkin, P V Neoustroev, C Newsom, A P Nilov, S B Nurushev, A Ocherashvili, E Oliveira, Y Onel, E Ozel, S Ozkorucuklu, A Penzo, S V Petrenko, P Pogodin, M Procario, V A Prutskoi, E Ramberg, G F Rappazzo, B V Razmyslovich, V I Rud, J Russ, P Schiavon, J Simon, A I Sitnikov, D Skow, V J Smith, M Srivastava, V Steiner, V Stepanov, L Stutte, M Svoiski, N K Terentyev, G P Thomas, L N Uvarov, A N Vasiliev, D V Vavilov, V S Verebryusov, V A Victorov, V E Vishnyakov, A A Vorobyov, K Vorwalter, J You, Zhao Wenheng, Zheng Shuchen, R Zukanovich-Funchal.
Abstract
We observe a signal for the doubly charmed baryon Xi(+)(cc) in the charged decay mode Xi(+)(cc)-->Lambda(+)(c)K-pi(+) in data from SELEX, the charm hadroproduction experiment at Fermilab. We observe an excess of 15.9 events over an expected background of 6.1+/-0.5 events, a statistical significance of 6.3sigma. The observed mass of this state is 3519+/-1 MeV/c(2). The Gaussian mass width of this state is 3 MeV/c(2), consistent with resolution; its lifetime is less than 33 fs at 90% confidence.Year: 2002 PMID： 12225136 DOI： 10.1103/PhysRevLett.89.112001
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161