| Thème(s) : |
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Physique/Physique des Hautes Energies - Expérience
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| Titre : |
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Search for the rare decay K^0_S -> mu+ mu- |
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| Auteur : |
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R. Aaij, S. Barsuk1, O. Callot1, J. He1, B. Jean-Marie1, J. Lefrançois1, F. Machefert1, A. Martin Sanchez1, M. Nicol1, P. Robbe1, M.-H. Schune1, B. Viaud1, I. Videau1, E. Ben-Haim2, M. Benayoun2, P. David2, L. Del Buono2, A. Martens2, Z.J. Ajaltouni3, O. Deschamps3, E. Cogneras3, I. El Rifai3, P. Henrard3, M. Hoballah3, M. Jahjah Hussein3, R. Lefèvre3, L. Li Gioi3, S. Monteil3, V. Niess3, P. Perret3, D.A. Roa Romero3, K. Sobczak3, I. De Bonis4, D. Decamp4, Ph. Ghez4, P. Hopchev4, J.-P. Lees4, I.V. Machikhiliyan4, M.-N. Minard4, B. Pietrzyk4, S. T'Jampens4, V. Tisserand4, E. Tournefier4, C. Adrover5, E. Aslanides5, J. Cogan5, R. Legac5, O. Leroy5, G. Mancinelli5, E. Maurice5, M. Perrin-Terrin5, M. Sapunov5, J. Serrano5, A. Tsaregorodtsev5 |
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| Laboratoire : |
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| Résumé : |
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A search for the decay KS -> mu+ mu- is performed, based on a data sample of 1.0 fb^-1 of pp collisions at \sqrt{s}=7 TeV collected by the LHCb experiment at the Large Hadron Collider. The observed number of candidates is consistent with the background-only hypothesis, yielding an upper limit of BR(KS -> mu+ mu-) < 11 (9) x 10^-9 at 95 (90)% confidence level. This limit is a factor of thirty below the previous measurement. |
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| Collaboration/Projet : |
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LHCb |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication ou d'écriture : |
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2013 |
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| Nom du périodique : |
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| Journal of High Energy Physics |
| Publisher |
Institute of Physics (IOP) |
| ISSN |
1126-6708 (eISSN : 1029-8479) |
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| Volume : |
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01 |
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| Page/Article : |
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090 |
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| Identifiant local : |
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CERN-PH-EP-2012-267, LHCb-PAPER-2012-023 |
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| Commentaire : |
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13(+6) pages, 4 figures, submitted to JHEP - See paper for full list of authors |
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