Search for long-lived doubly charged Higgs bosons in pp collisions at sqrt[s] = 1.96 TeV

Phys Rev Lett. 2005 Aug 12;95(7):071801. doi: 10.1103/PhysRevLett.95.071801. Epub 2005 Aug 11.

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 pp collisions at sqrt[s] = 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/c(2) and 109 GeV/c(2), respectively. In the degenerate case we exclude H(+/- +/-) mass below 146 GeV/c(2). All limits are quoted at the 95% confidence level.