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| Título: | Search for High Mass Resonances Decaying to Muon Pairs in √s=1.96 TeV pp̅ Collisions |
Autor: | Aaltonen, T.; Álvarez González, B.; Casal, Bruno CSIC; Cuevas, Javier CSIC ORCID; Gómez, Gervasio CSIC ORCID ; Palencia, Enrique CSIC ORCID; Rodrigo, Teresa CSIC ORCID ; Ruiz Jimeno, Alberto CSIC ORCID ; Scodellaro, Luca CSIC ORCID ; Vila, Iván CSIC ORCID; Vilar Cortabitarte, R. CSIC ORCID; Vizán, J. CSIC ORCID | Fecha de publicación: | mar-2011 | Editor: | American Physical Society | Citación: | Physical Review Letters 106(12): 121801 (2011) | Resumen: | We present a search for a new narrow, spin-1, high mass resonance decaying to μ+μ-+X, using a matrix-element-based likelihood and a simultaneous measurement of the resonance mass and production rate. In data with 4.6 fb-1 of integrated luminosity collected by the CDF detector in pp̅ collisions at √s=1960 GeV, the most likely signal cross section is consistent with zero at 16% confidence level. We therefore do not observe evidence for a high mass resonance and place limits on models predicting spin-1 resonances, including M>1071 GeV/c2 at 95% confidence level for a Z′ boson with the same couplings to fermions as the Z boson. | Descripción: | 7 páginas, 3 figuras, 1 tabla.-- PACS numbers: 14.70.Pw, 12.60.Cn, 13.85.Rm, 14.80.-j.-- CDF Collaboration: et al. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevLett.106.121801 | URI: | http://hdl.handle.net/10261/46580 | DOI: | 10.1103/PhysRevLett.106.121801 | ISSN: | 0031-9007 | E-ISSN: | 1079-7114 |
| Aparece en las colecciones: | (IFCA) Artículos |
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| e121801.pdf | 270,28 kB | Adobe PDF |  Visualizar/Abrir |
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