Search for Pair Production of Doubly Charged Higgs Bosons in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>H</mml:mi><mml:mo>++</mml:mo></mml:msup><mml:msup><mml:mi>H</mml:mi><mml:mo>--</mml:mo></mml:msup><mml:mo>→</mml:mo><mml:msup><mml:mi>μ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>μ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>μ</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:msup><mml:mi>μ</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>Final State

We report the results of a search for pair production of doubly charged Higgs bosons via $p\overline{p}\ensuremath{\rightarrow}{H}^{++}{H}^{--}X\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}{\ensuremath{\mu}}^{\ensuremath{-}}X$ at $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$. We use a data set corresponding to an integrated luminosity of $1.1\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected from 2002 to 2006 by the D0 detector at the Fermilab Tevatron Collider. In the absence of an excess above the standard model background, lower mass limits of $M({H}_{L}^{\ifmmode\pm\else\textpm\fi{}\ifmmode\pm\else\textpm\fi{}})>150\text{ }\text{ }\mathrm{GeV}/{c}^{2}$ and $M({H}_{R}^{\ifmmode\pm\else\textpm\fi{}\ifmmode\pm\else\textpm\fi{}})>127\text{ }\text{ }\mathrm{GeV}/{c}^{2}$ at 95% C.L. are set, respectively, for left-handed and right-handed doubly charged Higgs bosons assuming a 100% branching ratio into muons.

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