Search Results - "Berezhnoy, Alexander"
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Associated Charmonium-Bottomonium Production in a Single Boson e+e− Annihilation
Published in Symmetry (Basel) (01-07-2021)“…The production cross sections of J/ψηb, Yηc pairs in a single boson e+e− annihilation have been studied in a wide range of energies, which will be achieved at…”
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2
vs. as a probe of a scalar mediator dark-matter scenario
Published in Europhysics letters (01-01-2024)“…Abstract Recently, Belle II reported the observation of the decay , where M X is the missing mass, with the branching ratio much exceeding which is the only…”
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Improved Measurement of CP Violation Parameters in B 0 s →J/ψK + K − Decays in the Vicinity of the ϕ(1020) Resonance
Published in Physical review letters (2024)“…The decay-time-dependent CP asymmetry in B 0 s →J/ψ(→μ + μ − )K + K − decays is measured using proton-proton collision data, corresponding to an integrated…”
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4
Observation of the B 0 s â D + D - decay
Published in The journal of high energy physics (2023)“…The first observation of the B-s(0) -> D*+ D*- decay and the measurement of its branching ratio relative to the B-0 -> D*+ D*(-) decay are presented. The…”
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5
Search for CP violation in the phase space of D 0 → π−π+π 0 decays with the energy test
Published in The journal of high energy physics (2023)“…A search for CP violation in D-0 -> pi(-)pi(+)pi(0) decays is reported, using pp collision data collected by the LHCb experiment from 2015 to 2018…”
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6
B\to K^ M_X$ vs $B\to K M_X$ as a probe of a scalar-mediator dark matter scenario
Published 29-09-2023“…Europhysics Letters, 145, 14001 (2024) Recently, Belle II reported the observation of the decay $B\to K M_X$, $M_X$ the missing mass, with the branching ratio…”
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Observation of a New Excited $D^+_s$ Meson in $B^0 \rightarrow D^- D^+ K^+ \pi^-$ Decays
Published in Physical review letters (2021)“…Using pp collision data corresponding to an integrated luminosity of 5.4 fb-1 collected with the LHCb detector at a center-of-mass energy of 13 TeV, the…”
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Constraints on the $K^0_S \rightarrow \mu^+ \mu^-$ Branching Fraction
Published in Physical review letters (2020)“…A search for the decay KS0→μ+μ- is performed using proton-proton collision data, corresponding to an integrated luminosity of 5.6 fb-1 and collected with the…”
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9
Measurement of $CP$-Averaged Observables in the $B^{0}\rightarrow K^{0}\mu^{+}\mu^{-}$ Decay
Published in Physical review letters (2020)“…An angular analysis of the B0→K*0(→K+π-)μ+μ- decay is presented using a dataset corresponding to an integrated luminosity of 4.7 fb-1 of pp collision data…”
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Search for the Rare Decays $B^0_s\to e^+e^-$ and $B^0\to e^+e^-
Published in Physical review letters (2020)“…A search for the decays Bs0→e+e- and B0→e+e- is performed using data collected with the LHCb experiment in proton-proton collisions at center-of-mass energies…”
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11
Search for $CP$ violation in $D_s^+\to K_S^0 \pi^+$, $D^+\to K_S^0 K^+$ and $D^+\to \phi \pi^+$ decays
Published in Physical review letters (2019)“…A search for charge-parity (CP) violation in Cabibbo-suppressed Ds+→KS0π+, D+→KS0K+, and D+→ϕπ+ decays is reported using proton-proton collision data,…”
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12
Measurement of the ratio of branching fractions of the decays $\Lambda^0_b\to\psi(2S) \Lambda$ and $\Lambda^0_b\!\to J/\psi \Lambda
Published in The journal of high energy physics (2019)“…Using pp collisions corresponding to 3 fb$^{−1}$ integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of…”
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13
Search for excited $B_{c}^{+}$ states
Published in The journal of high energy physics (2018)“…A search is performed in the invariant mass spectrum of the B$_{c}^{+}$ π$^{+}$π$^{−}$ system for the excited B$_{c}^{+}$ states B$_{c}$ (2$^{1}$S$_{0}$)$^{+}$…”
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14
Measurement of the CKM angle $\gamma$ using $B^\pm\to DK^\pm$ with $D\to K_\text{S}^0\pi^+\pi^-$, $K_\text{S}^0K^+K^-$ decays
Published in The journal of high energy physics (2018)“…A binned Dalitz plot analysis of B$^{±}$ → DK$^{±}$ decays, with D → K$_{S}^{0}$ π$^{+}$π$^{−}$ and D → K$_{S}^{0}$ K$^{+}$K$^{−}$, is used to perform a…”
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15
Nonfactorizable charming-loop contribution to FCNC $B_s\to \gamma l^+l^-$ decay
Published 01-04-2024“…We present the first theoretical calculation of nonfactorizable charm-quark loop contributions to the $B_s\to \gamma l^+l^-$ amplitude. We calculate the…”
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16
Search for Baryon-Number Violating ${\mathrm{\Xi}}_{b}^{0}$ Oscillations
Published in Physical review letters (2017)“…A search for baryon-number violating Ξb0 oscillations is performed with a sample of pp collision data recorded by the LHCb experiment, corresponding to an…”
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17
First Observation of the Rare Purely Baryonic Decay $B^0\to p\bar p
Published in Physical review letters (2017)“…The first observation of the decay of a B0 meson to a purely baryonic final state, B0→pp¯, is reported. The proton-proton collision data sample used was…”
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18
Charming-loop contribution to $B_s\to \gamma\gamma$ decay
Published 01-09-2023“…Phys. Rev. D 108, 094022 (2023) We present a detailed theoretical study of nonfactorizable contributions of the charm-quark loop to the amplitude of the…”
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Study of prompt D$^{0}$ meson production in $p$Pb collisions at $ \sqrt{s_{\mathrm{NN}}}=5 $ TeV
Published in The journal of high energy physics (2017)“…Production of prompt D$^{0}$ mesons is studied in proton-lead and lead-proton collisions recorded at the LHCb detector at the LHC. The data sample corresponds…”
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20
Measurement of $CP$ observables in $B^{\pm} \rightarrow D K^{\pm}$ decays using two- and four-body $D$ final states
Published in The journal of high energy physics (2017)“…Measurements of CP observables in B$^{±}$ → DK$^{*±}$ decays are presented, where D denotes a superposition of D$^{0}$ and $ {\overline{D}}^0 $ meson states…”
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