Search for Doubly Charged Higgs Bosons Decaying to Dileptons in pp¯ Collisions at s=1.96TeV

D. Acosta et al. (CDF Collaboration)
Phys. Rev. Lett. 93, 221802 – Published 23 November 2004

Abstract

We present the results of a search for doubly charged Higgs bosons (H±±) decaying to dileptons (ll) using 240pb1 of pp¯ collision data collected by the CDF II experiment at the Fermilab Tevatron. In our search region, given by same-sign ll mass mll>80GeV/c2 (100GeV/c2 for ee channel), we observe no evidence for H±± production. We set limits on σ(pp¯H++H--l+l+ll) as a function of the mass of the H±± and the chirality of its couplings. Assuming exclusive same-sign dilepton decays, we derive lower mass limits on HL±± of 133, 136, and 115GeV/c2 in the ee, μμ, and eμ channels, respectively, and a lower mass limit of 113GeV/c2 on HR±± in the μμ channel, all at the 95% confidence level.

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  • Received 25 June 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.221802

©2004 American Physical Society

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Vol. 93, Iss. 22 — 26 November 2004

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