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Search for New Dielectron Resonances and Randall-Sundrum Gravitons at the Collider Detector at Fermilab

AuthorsAaltonen, T.; Álvarez González, B.; Casal, Bruno ; Cuevas, Javier ; Gómez, G. ; Palencia, Enrique ; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vila, Iván ; Vilar, Rocío ; Vizán, J.
Issue DateJul-2011
PublisherAmerican Physical Society
CitationPhysical Review Letters 107(5): 051801 (2011)
AbstractA search for new dielectron-mass resonances using data recorded by the CDF II detector and corresponding to an integrated luminosity of 5.7  fb-1 is presented. No significant excess over the expected standard model prediction is observed. In this data set, an event with the highest dielectron mass ever observed (960  GeV/c2) was recorded. The results are interpreted in the Randall-Sundrum (RS) model. Combined with the 5.4  fb-1 diphoton analysis, the RS-graviton lower-mass limit for the coupling k/M̅ Pl=0.1 is 1058  GeV/c2, making it the strongest limit to date.
Description8 páginas, 4 figuras, 1 tabla.-- PACS numbers: 14.70.Kv, 11.25.Wx, 13.85.Qk, 13.85.Rm.-- CDF Collaboration: et al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.107.051801
Appears in Collections:(IFCA) Artículos
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