https://doi.org/10.1140/epjc/s2006-02607-6
Theoretical Physics
Detecting an invisible Higgs boson at Fermilab Tevatron and CERN LHC
Institute of Theoretical Physics, School of Physics, Peking University, Beijing, 100871, P.R. China
* e-mail: huald@th.phy.pku.edu.cn
Received:
23
March
2006
Published online:
21
July
2006
In this paper, we study the observability of an invisible Higgs boson at Fermilab Tevatron and CERN LHC through the production channel qq̄→ZH→ℓ+ℓ-+P/T, where/PT is reconstructed from the ℓ+ℓ- with ℓ=e or μ. A new strategy is proposed to eliminate the largest irreducible background, namely qq̄→Z(→ℓ+ℓ-)Z(→νν̄). This strategy utilizes the precise measurements of qq̄→Z(→ℓ+ℓ-)Z(→ℓ+ℓ-). For mH=120 GeV and with luminosity 30 fb-1 at Tevatron, a 5σ observation of the invisible Higgs boson is possible. For mH=114∼140 GeV with only 10 fb-1 luminosity at LHC, a discovery signal over 5σ can be achieved.
© Springer-Verlag, 2006
