Search for High Mass Resonances Decaying to Muon Pairs in $\sqrt{s}=1.96$ TeV $p\bar{p}$ Collisions

Abstract : We present a search for a new narrow, spin-1, high mass resonance decaying to $\mu^+\mu^- + X$, 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 $p\bar{p}$ collisions at $\sqrt{s}=1960$ 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/$c^2$ at 95\% confidence level for a $Z'$ boson with the same couplings to fermions as the $Z$ boson.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00598748
Contributor : Swarna Bassava <>
Submitted on : Tuesday, June 7, 2011 - 2:43:11 PM
Last modification on : Friday, April 16, 2021 - 8:42:12 AM

Citation

T. Aaltonen, B. Alvarez Gonzalez, S. Amerio, D. Amidei, A. Anastassov, et al.. Search for High Mass Resonances Decaying to Muon Pairs in $\sqrt{s}=1.96$ TeV $p\bar{p}$ Collisions. Physical Review Letters, American Physical Society, 2011, 106, pp.121801. ⟨10.1103/PhysRevLett.106.121801⟩. ⟨in2p3-00598748⟩

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