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| Title: | Search for New Physics in High-Mass Electron-Positron Events in pp̅ Collisions at √s=1.96 TeV |
Authors: | Aaltonen, T.; Ruiz Jimeno, Alberto ; Chuang, S. H. CSIC; Cuenca Almenar, Cristóbal CSIC; Gómez, G. CSIC ORCID ; Palencia, Enrique CSIC ORCID; Cuevas, Javier CSIC ORCID; Rodrigo, Teresa CSIC ORCID ; Piedra, Jonatan CSIC ORCID ; Cabrera, Susana CSIC ORCID; Scodellaro, Luca CSIC ORCID ; Vila, Iván CSIC ORCID; Vilar, Rocío CSIC ORCID; Casal, Bruno CSIC | Issue Date: | 22-Oct-2007 | Publisher: | American Physical Society | Citation: | Physical Review Letters 99(17): 171802 (2007) | Abstract: | We report the results of a search for a narrow resonance in electron-positron events in the invariant mass range of 150-950 GeV/c^(2) using 1.3 fb(-1) of p(p)over-bar collision data at sqrt{s} = 1.96 TeV collected by the CDF II detector at Fermilab. No significant evidence of such a resonance is observed and we interpret the results to exclude the standard-model-like Z' with a mass below 923 GeV/c^(2) and the Randall-Sundrum graviton with a mass below 807 GeV/c^(2) for k sqrt{M-p1} = 0.1, both at the 95% confidence level. Combining with diphoton data excludes the Randall-Sundrum graviton for masses below 889 GeV/c^(2) for k sqrt{M-p1} = 0.1. | Description: | 7 páginas, 4 figuras.-- PACS nrs.: 13.85.Rm, 04.50.+h, 13.85.Qk, 14.70.Pw.-- CDF Collaboration: et al. | Publisher version (URL): | http://dx.doi.org/10.1103/PhysRevLett.99.171802 | URI: | http://hdl.handle.net/10261/8527 | DOI: | 10.1103/PhysRevLett.99.171802 | ISSN: | 0031-9007 |
| Appears in Collections: | (IFIC) Artículos (IFCA) Artículos |
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| search_new_physics_Aaltone.pdf | 301,33 kB | Adobe PDF |  View/Open |
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