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Title: Search for High Mass Resonances Decaying to Muon Pairs in √s=1.96  TeV pp̅ Collisions
Authors: Aaltonen, 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 Date: Mar-2011
Publisher: American Physical Society
Abstract: 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.
Description: 7 páginas, 3 figuras, 1 tabla.-- PACS numbers: 14.70.Pw, 12.60.Cn, 13.85.Rm, 14.80.-j.-- CDF Collaboration: et al.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevLett.106.121801
URI: http://hdl.handle.net/10261/46580
ISSN: 0031-9007
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Citation: Physical Review Letters 106(12): 121801 (2011)
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