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1First observation of the decay $D^0 ightarrow K^-π^+μ^+μ^-$ in the $ρ^0$-ω region of the dimuon mass spectrum

А.В. Бережной,Н.В. Никитин,А.К. Лефлат,В.Ю. Волков,Д.В. Саврина,C. LHCb

2016Physics Letters B（2016）引用：22

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2Measurement of the Production Cross Section for Charmed Baryons in Proton–nucleus Interactions at 70 GeV

V. N. Ryadovikov,A. N. Aleev,E. N. Ardashev,A. G. Afonin,V. P. Balandin,S. G. Basiladze,S. F. Berezhnev,G. A. Bogdanova,M. Yu. Bogolyubsky,A. M. Vischnevskaya,V. Yu. Volkov,A. P. Vorobiev,

The results of an analysis of data from the SERP-Е-184 experiment devoted to studying mechanisms of the production of charmed particles in proton–nucleus interactions at 70 GeV and their decays are presented. The data in question were obtained upon irradiating the SVD-2 active target consisting of carbon, silicon, and lead plates with a beam of 70-GeV protons. A detailed simulation on the basis of the FRITIOF7.02 and GEANT3.21 code packages made it possible to optimize event-selection criteria and to calculate the detection efficiency for Λ c + baryons. After selecting a signal from the threebody decay of a Λ c + baryon, the inclusive cross section for its production at near-threshold energies, its lifetime, and the parameter of the A dependence of the cross section were found. The Λ c + -baryon yields are tabulated along with data from other experiments and theoretical predictions.

2016Physics of Atomic Nuclei（2016）引用：3

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3Measurement of the difference of time-integrated CP asymmetries in $D^0 ightarrow K^- K^+ $ and $D^0 ightarrow π^- π^+ $ decays

А.В. Бережной,Н.В. Никитин,А.К. Лефлат,В.Ю. Волков,Д.В. Саврина,C. LHCb

2016Physical Review Letters（2016）引用：23

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4Angular analysis of the $B^0 o K^*0 μ^+ μ^-$ decay using 3 fb$^-1$ of integrated luminosity

А.В. Бережной,Н.В. Никитин,А.К. Лефлат,В.Ю. Волков,Д.В. Саврина,C. LHCb

2016Journal of High Energy Physics（2016）引用：23

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5Erratum: First observation and amplitude analysis of the $B^- o D^+K^-π^-$ decay

А.В. Бережной,А.К. Лефлат,Н.В. Никитин,Д.В. Саврина,М.Г. Королев,C. LHCb

2016Physical Review D（2016）引用：23

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6Study of the production of $Λ_b^0$ and $øverlineB^0$ hadrons in $pp$ collisions and first measurement of the $Λ_b^0 ightarrow J/ψ pK^-$ branching fraction

А.В. Бережной,Н.В. Никитин,А.К. Лефлат,В.Ю. Волков,Д.В. Саврина,C. LHCb

2016Chinese Physics C（2016）引用：23

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7Erratum: First observation and amplitude analysis of the B - →D + K - π - decay [Phys. Rev. D 91, 092002 (2015)]

А.В. Бережной,А.К. Лефлат,Н.В. Никитин,Д.В. Саврина,М.Г. Королев,C. LHCb

2016Physical Review D（2016）引用：18

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8Measurement of the lifetime of the $B_c^+$ meson using the $B_c^+ ightarrow J/ψπ^+$ decay mode

C. LHCb,А.В. Бережной,А.К. Лефлат,Н.В. Никитин,Д.В. Саврина,М.Г. Королев

2015Physics Letters B（2015）引用：23

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9Search for hidden-sector bosons in $B^0 \to K^*0μ^+μ^-$ decays

C Lhcb,а в бережной,а к лефлат,н в никитин,д в саврина

2015Physical Review Letters引用：23

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10Measurement of the CP-violating phase β in $B^0 ightarrow J/ψ π^+π^-$ decays and limits on penguin effects

C. LHCb,А.В. Бережной,А.К. Лефлат,Н.В. Никитин,Д.В. Саврина,М.Г. Королев

2015Physics Letters B（2015）引用：23

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11Measurement of the ratio of branching fractions $\mathcalB(\barB^0 \to D^*+τ^-\barν_τ)/\mathcalB(\barB^0 \to D^*+μ^-\barν_μ)$

C Lhcb,а в бережной,а к лефлат,н в никитин,д в саврина

2015Physical Review Letters引用：23

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12Study of the Rare Bs0 and B0 Decays into the Π+π−μ+μ− Final State

R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle,

A search for the rare decays B 0 s → π + π − μ + μ − and B 0 → π + π − μ + μ − is performed in a data set corresponding to an integrated luminosity of 3 . 0 fb − 1 collected by the LHCb detector in proton– proton collisions at centre-of-mass energies of 7 and 8 TeV. Decay candidates with pion pairs that have invariant mass in the range 0 . 5–1 . 3 GeV / c 2 and with muon pairs that do not originate from a resonance are considered. The ﬁrst observation of the decay B 0 s → π + π − μ + μ − and the ﬁrst evidence of the decay B 0 → π + π − μ + μ − are obtained and the branching fractions, restricted to the dipion-mass range considered, are measured to be B ( B 0 s → π + π − μ + μ − ) = ( 8 . 6 ± 1 . 5 ( stat ) ± 0 . 7 ( syst ) ± 0 . 7 ( norm )) × 10 − 8 and B ( B 0 → π + π − μ + μ − ) = ( 2 . 11 ± 0 . 51 ( stat ) ± 0 . 15 ( syst ) ± 0 . 16 ( norm )) × 10 − 8 , where the third uncertainty is due to the branching fraction of the decay B 0 → J /ψ( → μ + μ − ) K ∗ ( 892 ) 0 ( → K + π − ) , used as a normalisation. © 2015 The Authors. Published by Elsevier B.V. This an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP 3 .

2015PHYSICS LETTERS B（2015）引用：37

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13Measurement of the $B_s^0 \to φ φ$ branching fraction and search for the decay $B^0 \to φ φ$

C Lhcb,а в бережной,а к лефлат,н в никитин,д в саврина

2015Journal of High Energy Physics引用：23

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14Measurement of $B_c^+$ production in proton-proton collisions at $\sqrts=8$ TeV

C Lhcb,а в бережной,а к лефлат,н в никитин,д в саврина,м г королев

2015Physical Review Letters引用：23

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15Study of $Η-Η^\prime$ Mixing from Measurement of $b^0_(s) \rightarrow J/ψ Η^(\prime)$ Decay Rates

C. LHCb,А.В. Бережной,А.К. Лефлат,Н.В. Никитин,Д.В. Саврина,М.Г. Королев

2015

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16Калориметр Мягких Фотонов Установки СВД-2

Е. Н. Ардашев,Г. И. Бритвич,А. П. Воробьев,С. Н. Головня,В. Ф. Головкин,А. А. Киряков,В. Х. Маляев,В. А. Сенько,М. М. Солдатов,А. Г. Холоденко,Ю. П. Цюпа,Г. А. Богданова,

Описана конструкция калориметра мягких фотонов установки СВД-2. Апертура прибора 210 × 210 мм. Приведены первые результаты его испытания в ходе физического набора статистики в эксперименте E-190 на ускорителе У-70 ИФВЭ.

2015Приборы и техника эксперимента

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17A Soft Photon Calorimeter for the SVD-2 Experiment

E. N. Ardashev,G. I. Britvich,A. P. Vorobiev,S. N. Golovnya,V. F. Golovkin, A. A. Kiriyakov, V. H. Malyaev,V. A. Senko,M. M. Soldatov,A. G. Kholodenko,Y. P. Tsyupa,G. A. Bogdanova,

The design of the soft photon calorimeter for the SVD-2 experiment is described. The aperture of the calorimeter is 210 × 210 mm. The first results of its testing in the course of data acquisition in the E-190 experiment at the U-70 accelerator of the Institute for High Energy Physics are presented.

2015Instruments and Experimental Techniques（2015）引用：4

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18Precision measurement of $CP$ violation in $B_s^0 \to J/ψ K^+K^-$ decays