Observation of a narrow charm-strange meson D sJ +(2632) → D s +η and D 0K +

A. V. Evdokimov*, U. Akgun, G. Alkhazov, J. Amaro-Reyes, A. G. Atamantchouk, A. S. Ayan, 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. EscobarI. S. Filimonov, F. G. Garcia, M. Gaspero, I. Giller, V. L. Golovtsov, P. Gouffon, E. Gülmez, H. 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, L. Yinshan, M. Luksys, T. Lungov, V. P. Maleev, D. Mao, M. Chensheng, M. Zhenlin, P. Mathew, M. Mattson, V. Matveev, E. McCliment, M. A. Moinester, VV Molchanov, A. Morelos, K. D. Nelson, A. V. Nemitkin, P. V. Neoustroev, C. Newsom, A. P. Nilov, S. B. Nurushev, A. Ocherashvili, Y. Onel, E. Ozel, S. Ozkorucuklu, A. Penzo, S. V. Petrenko, P. Pogodin, M. Procario, 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, I. Torres, L. N. Uvarov, A. N. Vasiliev, D. V. Vavilov, E. Vázquez-Jáuregui, V. S. Verebryusov, V. A. Victorov, V. E. Vishnyakov, A. A. Vorobyov, K. Vorwalter, J. You, Z. Wenheng, Z. Shuchen, R. Zukanovich-Funchal

*Corresponding author for this work

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98 Scopus citations

Abstract

The observation of a charm-strange meson D sJ +(2632) along with two decay modes of D + +η and D 0K +, was investigated. A peak with 101 events over a combinatoric background of 54.9 events at a mass of 2635.4∓3.3 MeV/c 2 was observed in the D s +η decay mode. In the D 0K + decay mode, a corresponding peak of 21 events over a background of 6.9 at 2631.5∓2.0 MeV/c 2 was observed. The results show a clear peak of 43.4∓9.1 events with a Poisson fluctuation probability <6×10 -6 at a mass difference of 666.9∓3.3 MeV/c 2.

Original languageEnglish
Article number242001
JournalPhysical Review Letters
Volume93
Issue number24
DOIs
StatePublished - 10 Dec 2004

Funding

FundersFunder number
Fondo de Apoyo a la Investigación
Russian Ministry of Science and Technology
Turkish Scientific and Technological Research Board
TÜBİTAK
National Science Foundation
U.S. Department of EnergyDE-FG02-91ER40664, DE-AC02-76CHO3000
Directorate for Mathematical and Physical Sciences9602178
North Atlantic Treaty OrganizationCR6.941058-1360/94
International Foundation for Science
United States-Israel Binational Science Foundation
Fundação de Amparo à Pesquisa do Estado de São Paulo
Russian Academy of Sciences
Consejo Nacional de Ciencia y Tecnología
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Israel Academy of Sciences and Humanities
Israel Science Foundation
Instituto Nazionale di Fisica Nucleare
Universidad Autónoma de San Luis Potosí
Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie

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