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Search: WFRF:(Gabrielli Emidio)

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  • Gabrielli, Emidio, et al. (author)
  • Higgs-boson-plus-photon production at the CERN Large Hadron Collider : A clean probe of the b-quark parton densities
  • 2008
  • In: Physical Review D. Particles and fields. - 0556-2821 .- 1089-4918. ; 77:1, s. 015007-
  • Journal article (peer-reviewed)abstract
    • Higgs boson production in association with a high p(T) photon at the CERN Large Hadron Collider is analyzed, in the framework of the MSSM model, for the heavier neutral Higgs bosons. The request of an additional photon in the exclusive Higgs boson final state selects b-quark pairs among the possible initial partonic states, since gluon-gluon initial states are not allowed by C-parity conservation. Hence, the measurement of cross sections for neutral Higgs boson plus photon production can provide a clean probe of the b-quark density in the proton as well as of the b-quark Yukawa coupling. The suppression of the production rates by the b-quark electromagnetic coupling can be compensated by the enhanced Higgs boson Yukawa coupling to b's in the large tan beta regime. The Higgs boson decay into a tau-lepton pair is considered, and irreducible backgrounds with corresponding signal significances are evaluated.
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3.
  • Goudzovski, Evgueni, et al. (author)
  • New physics searches at kaon and hyperon factories
  • 2023
  • In: Reports on progress in physics (Print). - : Institute of Physics (IOP). - 0034-4885 .- 1361-6633. ; 86:1
  • Research review (peer-reviewed)abstract
    • Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths and the availability of very large datasets. On the other hand, useful complementary information is provided by hyperon decay measurements. We summarize the relevant phenomenological models and the status of the searches in a comprehensive list of kaon and hyperon decay channels. We identify new search strategies for under-explored signatures, and demonstrate that the improved sensitivities from current and next-generation experiments could lead to a qualitative leap in the exploration of light dark sectors.
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