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Search for doubly charged Higgs bosons decaying to dileptons in pp collisions at square root of s=1.96 TeV |
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| Authors: | Acosta D Affolder T Akimoto T Albrow M G Ambrose D Amerio S Amidei D Anastassov A Anikeev K Annovi A Antos J Aoki M Apollinari G Arisawa T Arguin J-F Artikov A Ashmanskas W Attal A Azfar F Azzi-Bacchetta P Bacchetta N Bachacou H Badgett W Barbaro-Galtieri A Barker G J Barnes V E Barnett B A Baroiant S Barone M Bauer G Bedeschi F Behari S Belforte S Bellettini G Bellinger J Benjamin D Beretvas A Bhatti A Binkley M Bisello D Bishai M Blair R E Blocker C Bloom K Blumenfeld B Bocci A Bodek A Bolla G Bolshov A Booth P S L Bortoletto D Boudreau J Bourov S Bromberg C Brubaker E Budagov J Budd H S |
| Affiliation: | University of Florida, Gainesville, Florida 32611, USA. |
| Abstract: | We present the results of a search for doubly charged Higgs bosons (H+/-+/-) decaying to dileptons (ll(')) using approximately 240 pb(-1) of pp collision data collected by the CDF II experiment at the Fermilab Tevatron. In our search region, given by same-sign ll(') mass m(ll('))>80 GeV/c(2) (100 GeV/c(2) for ee channel), we observe no evidence for H+/-+/- production. We set limits on sigma(pp -->H++H---->l(+)l('+)l(-)l('-)) 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 H(+/-+/-)(L) of 133, 136, and 115 GeV/c(2) in the ee, mumu, and emu channels, respectively, and a lower mass limit of 113 GeV/c(2) on H(+/-+/-)(R) in the mumu channel, all at the 95% confidence level. |
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