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Rare and Semi-rare Decays in ATLAS

Flavour-changing neutral-current (FCNC) processes like $b \to s\,\mu^+\mu^-$ and $B_{(s)}^0 \to \mu^+\mu^-$ are suppressed in the Standard Model (SM) and thus sensitive to New Physics (NP) effects. This contribution summarises ATLAS results from the angular analysis of the $B^0 \to K^* \mu^+\mu^-$ d...

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Detalles Bibliográficos
Autor principal: Ibragimov, Iskander
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.364.0241
http://cds.cern.ch/record/2692467
Descripción
Sumario:Flavour-changing neutral-current (FCNC) processes like $b \to s\,\mu^+\mu^-$ and $B_{(s)}^0 \to \mu^+\mu^-$ are suppressed in the Standard Model (SM) and thus sensitive to New Physics (NP) effects. This contribution summarises ATLAS results from the angular analysis of the $B^0 \to K^* \mu^+\mu^-$ decay performed with LHC Run 1 data, the $\cal B(B_{(s)}^0 \to \mu^+\mu^-)$ measurement performed with 2015 and 2016 data and projections for the $B^0 \to K^* \mu^+\mu^-$ and $\cal B(B_{(s)}^0 \to \mu^+\mu^-)$ measurements for the High-Luminosity LHC (HL-LHC). The projections are based on extrapolations of the Run 1 results with the expected statistics corresponding to assumed 3 ab$^{-1}$ of delivered luminosity for the HL-LHC and on simulations of the expected layout of a new all-silicon Inner Tracker (ITk).