Search for Long-Lived Doubly Charged Higgs Bosons in pp̅ Collisions at √2=1.96 TeV

Authors

Darin Acosta, University of FloridaFollow
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Collider Detector at Fermilab Collaboration

Date of this Version

8-12-2005

Comments

Published by American Physical Society. Phys. Rev. Lett. 95, 071801 (2005). http://prl.aps.org. Copyright © 2005 American Physical Society. Permission to use.

Abstract

We present a search for long-lived doubly charged Higgs bosons (H^±±), with signatures of high ionization energy loss and muonlike penetration. We use 292 pb^-1 of data collected in pp̅ collisions at √2=1.96 TeV by the CDF II detector at the Fermilab Tevatron. Observing no evidence of long-lived doubly charged particle production, we exclude H_L^±± and H_R^±± bosons with masses below 133 GeV/c² and 109 GeV/c², respectively. In the degenerate case we exclude H^±± mass below 146 GeV/c². All limits are quoted at the 95% confidence level.