| Thème(s) : |
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Physique/Physique des Hautes Energies - Expérience
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| Titre : |
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Search for charged massive long-lived particles at sqrt(s)= 1.96 TeV |
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| Auteur : |
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V.M. Abazov, U. Bassler1, G. Bernardi2, M. Besançon1, D. Brown2, J. Brown2, E. Chapon1, F. Couderc1, F. Deliot1, Y. Enari2, S. Greder3, G. Grenier4, A. Grohsjean1, Z. Hubacek1, T. Kurca4, P. Lebrun4, J. Lellouch2, F. Miconi3, I. Ripp-Baudot3, C. Royon1, M. Titov1, B. Tuchming1, P. Verdier4, L. Zivkovic2, J.-F. Grivaz5, T. Guillemin5, M. Jaffré5, P. Pétroff5, G. Sajot6, J. Stark6, F. Badaud7, Ph. Gris7, M.-C. Cousinou8, A. Duperrin8, W. Geng8, E. Kajfasz8, S. Kermiche8, E. Nagy8, N. Osman8 |
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| Laboratoire : |
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| Résumé : |
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We present a search for charged massive long-lived particles (CMLLPs) that are pair produced in p-pbar collisions at sqrt(s)= 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider. Our result is a combination of two searches where either one or both CMLLPs are reconstructed in the detector. We select events with muon-like particles that have both speed and ionization energy loss dE/dx different from muons produced in p-pbar collisions. In the absence of evidence for CMLLPs corresponding to 6.3 fb-1 of integrated luminosity, we set limits on the CMLLP masses in several supersymmetric models, excluding masses below 278 GeV for long-lived gaugino-like charginos, and masses below 244 GeV for long-lived higgsino-like charginos at the 95% C.L. We also set limits on the cross section for pair production of long-lived scalar tau leptons that range from 0.04 pb to 0.008 pb for scalar tau lepton masses of 100 to 300 GeV. |
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| Collaboration/Projet : |
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D0 |
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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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| Physical Review D (Phys. Rev. D) |
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American Physical Society |
| ISSN |
1550-7998 (eISSN : 1550-2368) |
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| Volume : |
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87 |
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| Page/Article : |
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052011 |
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| Identifiant local : |
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LPSC12319 |
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| Commentaire : |
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submitted to Phys. Rev. D ; see paper for full list of authors |
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