A method for identifying H -> tau tau -> e mu pTmiss at the CERN LHC

Abstract

Weak boson fusion promises to be a copious source of intermediate mass Higgs bosons at the LHC. The additional very energetic forward jets in these events provide for powerful background suppression tools. We analyze the subsequent H -> tau tau -> e mu pTmiss decay for Higgs boson masses in the 100-150 GeV range. A parton level analysis of the dominant backgrounds demonstrates that this channel allows the observation of H -> tau tau in a low-background environment, yielding a significant Higgs boson signal with an integrated luminosity of order 60 fb^-1 or less, over most of the mass range. We also restate a No-Lose Theorem for observation of at least one of the CP-even neutral Higgs bosons in the MSSM, which requires an integrated luminosity of only 40 fb^-1.

arXiv comment21 pages, 10 embedded PS figs; additional comments on b-jet veto in tt~ backgrounds; to be published in Phys Rev D

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