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          Institute: MPI für Kernphysik     Collection: Heavy Flavour Physics     Display Documents

ID: 31351.0, MPI für Kernphysik / Heavy Flavour Physics
First observation of the doubly charmed baryon Xi(+)(cc)
Authors:Mattson, M.; Alkhazov, G.; Atamantchouk, A. G.; Balatz, M. Y.; Bondar, N. F.; Cooper, P. S.; Dauwe, L. J.; Davidenko, G. V.; Dersch, U.; Dolgolenko, A. G.; Dzyubenko, G. B.; Edelstein, R.; Emediato, L.; Endler, A. M. F.; Engelfried, J.; Eschrich, I.; Escobar, C. O.; Evdokimov, A. V.; Filimonov, I. S.; Garcia, F. G.; Gaspero, M.; Giller, I.; Golovtsov, V. L.; Gouffon, P.; Gulmez, E.; He, K. L.; Iori, M.; Jun, S. Y.; Kaya, M.; Kilmer, J.; Kim, V. T.; Kochenda, L. M.; Konorov, I.; Kozhevnikov, A. P.; Krivshich, A. G.; Kruger, H.; Kubantsev, M. A.; Kubarovsky, V. P.; Kulyavtsev, A. I.; Kuropatkin, N. P.; Kurshetsov, V. F.; Kushnirenko, A.; Kwan, S.; Lach, J.; Lamberto, A.; Landsberg, L. G.; Larin, I.; Leikin, E. M.; Yunshan, L.; Luksys, M.; Lungov, T.; Maleev, V. P.; Mao, D.; Mao, C. S.; Mao, Z. L.; Mathew, P.; Matveev, V.; McCliment, E.; Moinester, M. A.; Molchanov, V. V.; Morelos, A.; Nelson, K. D.; Nemitkin, A. V.; Neoustroev, P. V.; Newsom, C.; Nilov, A. P.; Nurushev, S. B.; Ocherashvili, A.; Oliveira, E.; Onel, Y.; Ozel, E.; Ozkorucuklu, S.; Penzo, A.; Petrenko, S. V.; Pogodin, P.; Procario, M.; Prutskoi, V. A.; Ramberg, E.; Rappazzo, G. F.; Razmyslovich, B. V.; Rud, V. I.; Russ, J.; Schiavon, P.; Simon, J.; Sitnikov, A. I.; Skow, D.; Smith, V. J.; Srivastava, M.; Steiner, V.; Stepanov, V.; Stutte, L.; Svoiski, M.; Terentyev, N. K.; Thomas, G. P.; Uvarov, L. N.; Vasiliev, A. N.; Vavilov, D. V.; Verebryusov, V. S.; Victorov, V. A.; Vishnyakov, V. E.; Vorobyov, A. A.; Vorwalter, K.; You, J.; Zhao, W. H.; Zheng, S. C.; Zukanovich-Funchal, R.
Date of Publication (YYYY-MM-DD):2002-09-09
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys. Rev. Lett.
Issue / Number:11
Start Page:112001
End Page:112001
Sequence Number of Article:112001
Review Status:Peer-review
Audience:Experts Only
Abstract / Description: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.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Guest Groups and Emeriti/Particle and Nuclear Physics (B. Povh)
External Affiliations:Carnegie Mellon Univ, Pittsburgh, PA 15213, USA; Ball State Univ, Muncie, IN 47306, USA; Bogazici Univ, TR-80815 Bebek, Istanbul, Turkey; Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil; Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA; Inst High Energy Phys, Protvino, Russia; Inst High Energy Phys, Beijing 100039, Peoples R China; Inst Theoret & Expt Phys, Moscow 117259, Russia; Max Planck Inst Kernphys, D-69117 Heidelberg, Germany; Moscow MV Lomonosov State Univ, Moscow, Russia; Petersburg Nucl Phys Inst, St Petersburg, Russia; Tel Aviv Univ, IL-69978 Ramat Aviv, Israel; Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico; Univ Fed Paraiba, BR-58059900 Joao Pessoa, Paraiba, Brazil; Univ Bristol, Bristol BS8 1TL, Avon, England; Univ Iowa, Iowa City, IA 52242 USA; Univ Michigan, Flint, MI 48502 USA; Univ Roma La Sapienza, Rome, Italy; Ist Nazl Fis Nucl, Rome, Italy; Univ Sao Paulo, Sao Paulo, Brazil; Univ Trieste, Trieste, Italy; Ist Nazl Fis Nucl, Trieste, Italy
Identifiers:ISI:000177676400004 [ID No:1]
ISSN:0031-9007 [ID No:2]
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