Year: 2002
Type: article
Abstract: We observe a signal for the doubly charmed baryon ${\ensuremath{\Xi}}_{cc}^{+}$ in the charged decay mode ${\ensuremath{\Xi}}_{cc}^{+}\ensuremath{\rightarrow}{\ensuremath{\Lambda}}_{c}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ in data from SELEX, the charm hadroproduction experiment at Fermilab. We observe an excess of 15.9 events over an expected background of $6.1\ifmmode\pm\else\textpm\fi{}0.5$ events, a statistical significance of $6.3\ensuremath{\sigma}$. The observed mass of this state is $3519\ifmmode\pm\else\textpm\fi{}1\text{ }\text{ }\mathrm{M}\mathrm{e}\mathrm{V}/{c}^{2}$. The Gaussian mass width of this state is $3\text{ }\text{ }\mathrm{M}\mathrm{e}\mathrm{V}/{c}^{2}$, consistent with resolution; its lifetime is less than 33 fs at 90% confidence.
Source: Physical Review Letters
Authors: M. Mattson, 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
Institutions: Carnegie Mellon University, Petersburg Nuclear Physics Institute, Institute for Theoretical and Experimental Physics, Fermi National Accelerator Laboratory, University of Michigan–Flint, Max Planck Institute for Nuclear Physics, Universidade de São Paulo, Centro Brasileiro de Pesquisas Físicas, Autonomous University of San Luis Potosí, Lomonosov Moscow State University, Istituto Nazionale di Fisica Nucleare, Sezione di Roma I, Sapienza University of Rome, Tel Aviv University, Boğaziçi University, Institute of High Energy Physics, University of Iowa, Institute for High Energy Physics, University of Trieste, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Universidade Federal da Paraíba, University of Bristol, Ball State University
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2139665613