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The settlement of Ust-Voikar is one of the unique multilayered archaeological sites of north-west Siberia. The settlement was inhabited in the late Middle Ages and the early modern period by the Ob Ugrian or northern Khanty ethnographic group. Due to the presence of a frozen cultural layer ruins of wooden residential buildings and other organic materials are well preserved. Plant macroremain, pollen and non-pollen palynomorph (NPP) analyses were applied to samples of the cultural layer from different parts of buildings and from space between them to establish the vegetation cover, plants used by the population, and differences between functional zones in the buildings. For the first time, the NPP analysis combined with statistical methods were used to clarify the settlement planning and human economic activity. Plant communities around the Ust-Voikar settlement were typical for the northern taiga subzone, some settlement's areas were overgrown with weed vegetation. Residents did not engage in agriculture and used local plant resources for construction, medicinal and food purposes. According to macroremain and NPP data were reconstructed (i) the use of spruce branches and cereal bedding indoors and outdoors on wet sites; (ii) the careful use of fire indoors; (iii) the presence of animals indoors; and (iv) whipworm infection. The cluster analysis and principal component analysis of NPPs helped to clarify the planning affiliations of several samples with the unclear origin and to suggest ways in which archaeological objects were used by the inhabitants.

The electromagnetic calorimeter of the BELLE II detector for experiments at Super B-factory SuperKEKB is briefly described. The project of the calorimeter upgrade to meet severe background conditions expected at the upgraded KEK B factory is presented.

A bstract Using the 4.9 pb −1 statistics collected at the peak of the ψ (3770) resonance with the KEDR detector at the VEPP-4M electron-positron collider, we measured the masses of the neutral and charged D mesons:

A bstract We present the study of the decay J/ψ → ρπ . The results are based on of 5.2 million J/ψ events collected by the KEDR detector at the VEPP-4M collider. The branching fractions are measured to be B ( J/ψ → ρπ ) = (2 . 072 ± 0 . 017 ± 0 . 062) ∙ 10 − 2 and B ( J/ψ → π + π − π 0 ) = (1 . 878 ± 0 . 013 ± 0 . 051) ∙ 10 − 2 , where the first uncertainties are statistical and the second systematic. Our results are more precise than the previous relative measurements.

Using the 1.32 pb-1 statistics collected at the J/ψ peak with the KEDR detector at the VEPP-4M e+e-collider, we measured the branching fractions of J/ψ meson decays to the final states 2(π+π-)π0, K+K-π+π-π0, 2(π+π-) and K+K-π+π-. The results obtained for the decays J/ψ→2(π+π-)π0, J/ψ→K+K-π+π-π0 contradict the measurements performed by other groups in the last century, but agree well with recent results of BABAR and BESIII collaborations.

We present the first model-independent measurement of the CKM unitarity triangle angle ϕ3 using B±→ D(KS0\\[ {K}_{\\mathrm{S}}^0 \\]π+π−π0) K± decays, where D indicates either a D0 or D¯\\[ \\overline{D} \\]0 meson. Measurements of the strong-phase difference of the D →KS0\\[ {K}_{\\mathrm{S}}^0 \\]π+π−π0 amplitude obtained from CLEO-c data are used as input. This analysis is based on the full Belle data set of 772 × 106BB¯\\[ \\overline{B} \\] events collected at the Υ(4S) resonance. We obtain ϕ3 = (5.7−8.8+10.2\\[ {5.7}_{-8.8}^{+10.2} \\]±3.5±5.7)° and the suppressed amplitude ratio rB = 0.323±0.147±0.023±0.051. Here the first uncertainty is statistical, the second is the experimental systematic, and the third is due to the precision of the strong-phase parameters measured from CLEO-c data. The 95% confidence interval on ϕ3 is (−29.7, 109.5)°, which is consistent with the current world average.

We present a search for the lepton-flavor-violating decays$$ {B}_s^0 $$B s 0 → ℓ ∓ τ ± , where ℓ = e, μ , using the full data sample of 121 fb − 1 collected at the Υ(5 S ) resonance with the Belle detector at the KEKB asymmetric-energy e + e − collider. We use$$ {B}_s^0{\\overline{B}}_s^0 $$B s 0 B ¯ s 0 events in which one$$ {B}_s^0 $$B s 0 meson is reconstructed in a semileptonic decay mode and the other in the signal mode. We find no evidence for$$ {B}_s^0 $$B s 0 → ℓ ∓ τ ± decays and set upper limits on their branching fractions at 90% confidence level as$$ \\mathcal{B} $$B ($$ {B}_s^0 $$B s 0 → e ∓ τ ± ) < 14 × 10 − 4 and$$ \\mathcal{B} $$B ($$ {B}_s^0 $$B s 0 → μ ∓ τ ± ) < 7 . 3 × 10 − 4 . Our result represents the first upper limit on the$$ {B}_s^0 $$B s 0 → e ∓ τ ± decay rate.

The paper is focused on the precise measurements of the total cross section for annihilation into hadronic final states at the VEPP-4M collider in Novosibirsk. The KEDR collaboration has published the R values on 22 points in the center-of-mass energy range from 1.84 to 3.72 GeV with the accuracy better than in previous measurements. The energy range between 4.56 and 6.96 GeV was scanned at 17 points with integrated luminosity of about 13.7 pb and preliminary results of the analysis are presented.

We present the first measurement of the branching fraction of the singly Cabibbo-suppressed (SCS) decay \\( {\\Lambda}_c^{+} \\) → pη' with η' → ηπ+π–, using a data sample corresponding to an integrated luminosity of 981 fb–1, collected by the Belle detector at the KEKB e+e– asymmetric-energy collider. A significant \\( {\\Lambda}_c^{+} \\) → pη' signal is observed for the first time with a signal significance of 5.4σ. The relative branching fraction with respect to the normalization mode \\( {\\Lambda}_c^{+} \\) → pK–π+ is measured to be $$ \\frac{\\mathcal{B}\\left({\\Lambda}_c^{+}\\to p\\eta^{\\prime}\\right)}{\\mathcal{B}\\left({\\Lambda}_c^{+}\\to {pK}^{-}{\\pi}^{+}\\right)}=\\left(7.54\\pm 1.32\\pm 0.73\\right)\\times {10}^{-3}, $$ where the uncertainties are statistical and systematic, respectively. Using the world-average value of \\( \\mathcal{B}\\left({\\Lambda}_c^{+}\\to {pK}^{-}{\\pi}^{+}\\right) \\) = (6.28 ± 0.32) × 10–2, we obtain $$ \\mathcal{B}\\left({\\Lambda}_c^{+}\\to p\\eta^{\\prime}\\right)=\\left(4.73\\pm 0.82\\pm 0.46\\pm 0.24\\right)\\times {10}^{-4}, $$ where the uncertainties are statistical, systematic, and from \\( \\mathcal{B}\\left({\\Lambda}_c^{+}\\to {pK}^{-}{\\pi}^{+}\\right) \\) , respectively.

The electronic width of the J / ψ meson and its product by the branching fractions of J / ψ meson decay to hadrons and electrons measured with the KEDR detector at the VEPP-4M e + e − collider have been reported in ref. [1].