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| Título: | Search for Randall-Sundrum gravitons in the diphoton channel at CDF |
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 | Fecha de publicación: | ene-2011 | Editor: | American Physical Society | Citación: | Physical Review D 83(1): 011102(R) (2011) | Resumen: | We report on a search for new particles in the diphoton channel using a data sample of pp̅ collisions at √s=1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 5.4 fb-1. The diphoton invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the production cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits on the graviton mass of 459 GeV/c2 and 963 GeV/c2, at the 95% confidence level, for coupling parameters (k/M̅ Pl) of 0.01 and 0.1, respectively. | Descripción: | 8 páginas, 4 figuras, 1 tabla.-- PACS numbers: 12.38.Qk, 13.85.Qk, 13.85.Rm.-- CDF Collaboration: et al. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevD.83.011102 | URI: | http://hdl.handle.net/10261/46641 | DOI: | 10.1103/PhysRevD.83.011102 | ISSN: | 1550-7998 | E-ISSN: | 1550-2368 |
| Aparece en las colecciones: | (IFCA) Artículos |
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| e011102.pdf | 284,33 kB | Adobe PDF |  Visualizar/Abrir |
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