Search Results - "Dujany, G"
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B-flavor tagging at Belle II
Published in The European physical journal. C, Particles and fields (01-04-2022)“…We report on new flavor tagging algorithms developed to determine the quark-flavor content of bottom ( ) mesons at Belle II. The algorithms provide essential…”
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2
Operational experience and performance of the Belle II silicon vertex detector after the first SuperKEKB long shutdown
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-10-2024)“…The Belle II experiment searches for beyond-the-standard-model physics using the Belle II detector and SuperKEKB collider. The silicon vertex detector (SVD) is…”
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3
The silicon vertex detector of the Belle II experiment
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-07-2024)“…The silicon vertex detector (SVD) is a four-layer double-sided strip detector installed at the heart of the Belle II experiment, taking data at the…”
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4
Beam background study for the Belle II Silicon Vertex Detector
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-12-2020)“…The Belle II experiment aims to accumulate 50ab−1 of e+e− collision data at the SuperKEKB asymmetric energy collider (Tsukuba, Japan). The first physics data…”
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5
Radiation Damage Effects and Operation of the LHCb Vertex Locator
Published in IEEE transactions on nuclear science (01-05-2018)“…Vertex locator (VELO) is a silicon microstrip detector situated around the interaction point in the large Hadron Collider beauty (LHCb) spectrometer at the…”
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6
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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10
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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11
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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12
Test of lepton universality using b+ → K+ℓ+ℓ- decays
Published in Physical review letters (06-10-2014)“…A measurement of the ratio of the branching fractions of the B(+) → K(+)μ(+)μ(-) and B(+) → K(+)e(+)e(-) decays is presented using proton-proton collision…”
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13
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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15
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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16
Search for Axionlike Particles Produced in e + e − Collisions at Belle II
Published in Physical review letters (14-10-2020)“…We present a search for the direct production of a light pseudoscalar a decaying into two photons with the Belle II detector at the SuperKEKB collider. We…”
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Observation of the resonant character of the Z(4430)(-) state
Published in Physical review letters (04-06-2014)“…Resonant structures in B^{0}→ψ^{'}π^{-}K^{+} decays are analyzed by performing a four-dimensional fit of the decay amplitude, using pp collision data…”
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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 an Excited Bc+ State
Published in Physical review letters (14-06-2019)“…Using pp collision data corresponding to an integrated luminosity of 8.5 fb−1 recorded by the LHCb experiment at center-of-mass energies of s=7, 8, and 13…”
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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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