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Phys. Rev. Lett. 102, 091805 (2009) [7 pages]

Search for High-Mass Resonances Decaying to Dimuons at CDF

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T. Aaltonen et al. CDF Collaboration
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Received 4 November 2008; published 6 March 2009

We present a search for high-mass neutral resonances using dimuon data corresponding to an integrated luminosity of 2.3  fb-1 collected in pp̅ collisions at s=1.96  TeV by the CDF II detector at the Fermilab Tevatron. No significant excess above the standard model expectation is observed in the dimuon invariant-mass spectrum. We set 95% confidence level upper limits on σBR(pp̅ →Xμμ̅ ), where X is a boson with spin-0, 1, or 2. Using these cross section limits, we determine lower mass limits on sneutrinos in R-parity-violating supersymmetric models, Z bosons, and Kaluza-Klein gravitons in the Randall-Sundrum model.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.091805
DOI:
10.1103/PhysRevLett.102.091805
PACS:
13.85.Rm, 12.60.Cn, 13.85.Qk, 14.70.Pw