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The Invisible Higgs Decay Width in the Add Model at the LHC | | M. Battaglia
; D. Dominici
; J.F. Gunion
; J.D. Wells
; | | Date: |
6 Feb 2004 | | Subject: | hep-ph | | Affiliation: | U.C. Berkeley and LBNL), D. Dominici (CERN and INFN, Florence), J.F. Gunion (U.C. Davis) and J.D. Wells (Michigan | | Abstract: | Assuming flat universal extra dimensions, we demonstrate that for a light Higgs boson the process $pp o W^*W^* +X o Higgs,graviscalars +X o invisible+X$ will be observable at the $5 sigma$ level at the LHC for the portion of the Higgs-graviscalar mixing ($xi$) and effective Planck mass ($M_D$) parameter space where channels relying on visible Higgs decays fail to achieve a $5 sigma$ signal. Further, we show that even for very modest values of $xi$ the invisible decay signal probes to higher $M_D$ than does the ($xi$-independent) jets/$gam$ + missing energy signal from graviton radiation. We also discuss various effects, such as Higgs decay to two graviscalars, that could become important when $m_h/M_D$ is of order 1. | | Source: | arXiv, hep-ph/0402062 | | Services: | Forum | Review | PDF | Favorites | |
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