Search Results - "Kuonen, A."
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Perifoveal capillary changes in diabetic patients and association between severity and type of diabetes, visual acuity, and enlargement of non-flow area in the retinal capillary plexuses
Published in Journal français d'ophtalmologie (01-03-2021)“…The goal of this study was to evaluate the perifoveal capillary bed and to analyze areas of non-flow using optical coherence tomography angiography (OCT-A) in…”
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Observation of CP Violation in Charm Decays
Published in Physical review letters (31-05-2019)“…A search for charge-parity (CP) violation in D^{0}→K^{-}K^{+} and D^{0}→π^{-}π^{+} decays is reported, using pp collision data corresponding to an integrated…”
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Search for A^{'}→μ^{+}μ^{-} Decays
Published in Physical review letters (31-01-2020)“…Searches are performed for both promptlike and long-lived dark photons, A^{'}, produced in proton-proton collisions at a center-of-mass energy of 13 TeV. These…”
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Measurement of the Ratio of Branching Fractions B(B_{c}^{+}→J/ψτ^{+}ν_{τ})/B(B_{c}^{+}→J/ψμ^{+}ν_{μ})
Published in Physical review letters (23-03-2018)“…A measurement is reported of the ratio of branching fractions R(J/ψ)=B(B_{c}^{+}→J/ψτ^{+}ν_{τ})/B(B_{c}^{+}→J/ψμ^{+}ν_{μ}), where the τ^{+} lepton is…”
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Measurement of the ratio of branching fractions B(B[over ¯]^{0}→D^{+}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]^{0}→D^{+}μ^{-}ν[over ¯]_{μ})
Published in Physical review letters (11-09-2015)“…The branching fraction ratio R(D^{*})≡B(B[over ¯]^{0}→D^{*+}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]^{0}→D^{*+}μ^{-}ν[over ¯]_{μ}) is measured using a sample of…”
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Search for Dark Photons Produced in 13 TeV pp Collisions
Published in Physical review letters (08-02-2018)“…Searches are performed for both promptlike and long-lived dark photons, A^{'}, produced in proton-proton collisions at a center-of-mass energy of 13 TeV, using…”
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Search for Lepton-Universality Violation in B^{+}→K^{+}ℓ^{+}ℓ^{-} Decays
Published in Physical review letters (17-05-2019)“…A measurement of the ratio of branching fractions of the decays B^{+}→K^{+}μ^{+}μ^{-} and B^{+}→K^{+}e^{+}e^{-} is presented. The proton-proton collision data…”
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Observation of the Doubly Charmed Baryon Ξ_{cc}^{++}
Published in Physical review letters (15-09-2017)“…A highly significant structure is observed in the Λ_{c}^{+}K^{-}π^{+}π^{+} mass spectrum, where the Λ_{c}^{+} baryon is reconstructed in the decay mode…”
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Observation of J/ψp Resonances Consistent with Pentaquark States in Λ_{b}^{0}→J/ψK^{-}p Decays
Published in Physical review letters (14-08-2015)“…Observations of exotic structures in the J/ψp channel, which we refer to as charmonium-pentaquark states, in Λ_{b}^{0}→J/ψK^{-}p decays are presented. The data…”
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Observation of J/ψϕ Structures Consistent with Exotic States from Amplitude Analysis of B^{+}→J/ψϕK^{+} Decays
Published in Physical review letters (11-01-2017)“…The first full amplitude analysis of B^{+}→J/ψϕK^{+} with J/ψ→μ^{+}μ^{-}, ϕ→K^{+}K^{-} decays is performed with a data sample of 3 fb^{-1} of pp collision…”
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Observation of Five New Narrow Ω_{c}^{0} States Decaying to Ξ_{c}^{+}K^{-}
Published in Physical review letters (05-05-2017)“…The Ξ_{c}^{+}K^{-} mass spectrum is studied with a sample of pp collision data corresponding to an integrated luminosity of 3.3 fb^{-1}, collected by the LHCb…”
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Observation of Several Sources of CP Violation in B^{+}→π^{+}π^{+}π^{-} Decays
Published in Physical review letters (24-01-2020)“…Observations are reported of different sources of CP violation from an amplitude analysis of B^{+}→π^{+}π^{+}π^{-} decays, based on a data sample corresponding…”
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Measurement of the b-Quark Production Cross Section in 7 and 13 TeV pp Collisions
Published in Physical review letters (03-02-2017)“…Measurements of the cross section for producing b quarks in the reaction pp→bb[over ¯]X are reported in 7 and 13 TeV collisions at the LHC as a function of the…”
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First Measurement of Charm Production in its Fixed-Target Configuration at the LHC
Published in Physical review letters (02-04-2019)“…The first measurement of heavy-flavor production by the LHCb experiment in its fixed-target mode is presented. The production of J/ψ and D^{0} mesons is…”
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Amplitude Analysis of B^{±}→π^{±}K^{+}K^{-} Decays
Published in Physical review letters (06-12-2019)“…The first amplitude analysis of the B^{±}→π^{±}K^{+}K^{-} decay is reported based on a data sample corresponding to an integrated luminosity of 3.0 fb^{-1} of…”
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First Observation of the Doubly Charmed Baryon Decay Ξ_{cc}^{++}→Ξ_{c}^{+}π^{+}
Published in Physical review letters (19-10-2018)“…The doubly charmed baryon decay Ξ_{cc}^{++}→Ξ_{c}^{+}π^{+} is observed for the first time, with a statistical significance of 5.9σ, confirming a recent…”
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Search for beautiful tetraquarks in the ϒ(1S)μ+μ− invariant-mass spectrum
Published in The journal of high energy physics (01-10-2018)“…A bstract The ϒ (1 S ) μ + μ − invariant-mass distribution is investigated for a possible exotic meson state composed of two b quarks and two b ¯ quarks, X b b…”
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Central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at s=13 TeV
Published in The journal of high energy physics (01-10-2018)“…A bstract Measurements are reported of the central exclusive production of J/ψ and ψ (2 S ) mesons in pp collisions at a centre-of-mass energy of 13 TeV…”
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Measurements of prompt charm production cross-sections in pp collisions at s=5 TeV
Published in The journal of high energy physics (01-06-2017)“…A bstract Production cross-sections of prompt charm mesons are measured using data from pp collisions at the LHC at a centre-of-mass energy of 5 TeV. The data…”
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