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Search for doubly charged Higgs bosons decaying to dileptons in p(p)over-bar collisions at root s=1.96 TeV

Acosta, D; Affolder, T; Akimoto, T; Albrow, MG; Ambrose, D; Amerio, S; Amidei, D; ... CDF Collaboration, .; + view all (2004) Search for doubly charged Higgs bosons decaying to dileptons in p(p)over-bar collisions at root s=1.96 TeV. PHYS REV LETT , 93 (22) , Article 221802. 10.1103/PhysRevLett.93.221802. Green open access

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Abstract

We present the results of a search for doubly charged Higgs bosons (H+/-+/-) decaying to dileptons (ll') using approximate to240 pb(-1) of p (p) over bar 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(p (p) over bar -->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.

Type: Article
Title: Search for doubly charged Higgs bosons decaying to dileptons in p(p)over-bar collisions at root s=1.96 TeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.93.221802
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.93.221802
Language: English
Additional information: The American Physical Society
Keywords: NEUTRINO MASSES, MODELS, LEP, VIOLATION, PARITY, SCATTERING, SYMMETRY, MIXINGS
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/131794
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