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Search for Higgs-like bosons decaying into long-lived exotic particles
Several beyond the Standard Model theoretical models predict the existence of Higgs bosons decaying into heavy long-lived particles. We have analyzed the LHCb data collected from pp collisions at $\sqrt{s}$ =7 TeV in 2010, corresponding to an integrated luminosity of 35.8 pb$^{-1}$, to identify sec...
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Lenguaje: | eng |
Publicado: |
2012
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1434432 |
Sumario: | Several beyond the Standard Model theoretical models predict the existence of Higgs bosons decaying into heavy long-lived particles. We have analyzed the LHCb data collected from pp collisions at $\sqrt{s}$ =7 TeV in 2010, corresponding to an integrated luminosity of 35.8 pb$^{-1}$, to identify secondary vertices which can be associated with the decay of such particles. The candidates are subsequently combined to reconstruct the parent bosons. The approximate sensitivity range of this analysis covers long-lived particle lifetimes from 3 to 25 ps, masses between 30 and 55 GeV/c$^2$, and parent Higgs masses of 100--125 GeV/c$^2$. We do not observe evidence for the production of these long-lived states, and set limits on their production times branching ratios. |
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