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Searching for Long-lived Particles: A Compact Detector for Exotics at LHCb

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arxiv 1708.09395 v2 pith:AVIV7W2Q submitted 2017-08-30 hep-ph hep-ex

Searching for Long-lived Particles: A Compact Detector for Exotics at LHCb

classification hep-ph hep-ex
keywords lhcbbeyonddecaysdetectorexperimentexperimentshiggslong-lived
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We advocate for the construction of a new detector element at the LHCb experiment, designed to search for displaced decays of beyond standard model long-lived particles, taking advantage of a large shielded space in the LHCb cavern that is expected to soon become available. We discuss the general features and putative capabilities of such an experiment, as well as its various advantages and complementarities with respect to the existing LHC experiments and proposals such as SHiP and MATHUSLA. For two well-motivated beyond Standard Model benchmark scenarios -- Higgs decay to dark photons and $B$ meson decays via a Higgs mixing portal -- the reach either complements or exceeds that predicted for other LHC experiments.

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Forward citations

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