Персона: Куденко, Юрий Григорьевич
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Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Куденко
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Юрий Григорьевич
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- ПубликацияТолько метаданныеThe SHiP experiment at the proposed CERN SPS Beam Dump Facility(2022) Ahdida, C.; Akmete, A.; Albanese, R.; Alt, J.; Atkin, E.; Dmitrenko, V.; Etenko, A.; Fillipov, K.; Grachev, V.; Kudenko, Y.; Polukhina, N.; Samsonov, V.; Shustov, A.; Skorokhvatov, M.; Smirnov, S.; Teterin, P.; Ulin, S.; Uteshev, Z.; Vlasik, K.; Аткин, Эдуард Викторович; Дмитренко, Валерий Васильевич; Этенко, Александр Владимирович; Грачев, Виктор Михайлович; Куденко, Юрий Григорьевич; Полухина, Наталья Геннадьевна; Шустов, Александр Евгеньевич; Скорохватов, Михаил Дмитриевич; Смирнов, Сергей Юрьевич; Тетерин, Пётр Евгеньевич; Улин, Сергей Евгеньевич; Утешев, Зияэтдин Мухамедович; Власик, Константин Федорович© 2022, The Author(s).The Search for Hidden Particles (SHiP) Collaboration has proposed a general-purpose experimental facility operating in beam-dump mode at the CERN SPS accelerator to search for light, feebly interacting particles. In the baseline configuration, the SHiP experiment incorporates two complementary detectors. The upstream detector is designed for recoil signatures of light dark matter (LDM) scattering and for neutrino physics, in particular with tau neutrinos. It consists of a spectrometer magnet housing a layered detector system with high-density LDM/neutrino target plates, emulsion-film technology and electronic high-precision tracking. The total detector target mass amounts to about eight tonnes. The downstream detector system aims at measuring visible decays of feebly interacting particles to both fully reconstructed final states and to partially reconstructed final states with neutrinos, in a nearly background-free environment. The detector consists of a 50m long decay volume under vacuum followed by a spectrometer and particle identification system with a rectangular acceptance of 5 m in width and 10 m in height. Using the high-intensity beam of 400GeV protons, the experiment aims at profiting from the 4 × 10 19 protons per year that are currently unexploited at the SPS, over a period of 5–10 years. This allows probing dark photons, dark scalars and pseudo-scalars, and heavy neutral leptons with GeV-scale masses in the direct searches at sensitivities that largely exceed those of existing and projected experiments. The sensitivity to light dark matter through scattering reaches well below the dark matter relic density limits in the range from a few MeV/c2 up to 100 MeV-scale masses, and it will be possible to study tau neutrino interactions with unprecedented statistics. This paper describes the SHiP experiment baseline setup and the detector systems, together with performance results from prototypes in test beams, as it was prepared for the 2020 Update of the European Strategy for Particle Physics. The expected detector performance from simulation is summarised at the end.
- ПубликацияТолько метаданныеSegmented scintillator neutrino detector SuperFGD for T2K experiment(2025) Dergacheva, A.; Chernov, D.; Chvirova, A. A.; Erofeev, G.; Kudenko,Y.; Naumov, P.; Куденко, Юрий Григорьевич; Наумов, Петр Юрьевич
- ПубликацияТолько метаданныеNeutrino Physics: Current State, Anomalies, Prospects(2025) Kudenko, Y. G.; Куденко, Юрий Григорьевич
- ПубликацияТолько метаданныеAn investigation of the very rare K+→ π+νν¯ decay(2020) Cortina, Gil, E.; Kleimenova, A.; Minucci, E.; Padolski, S.; Kudenko, Y.; Куденко, Юрий Григорьевич© 2020, The Author(s).The NA62 experiment reports an investigation of the K+→ π+νν¯ mode from a sample of K+ decays collected in 2017 at the CERN SPS. The experiment has achieved a single event sensitivity of (0.389 ± 0.024) × 10−10, corresponding to 2.2 events assuming the Standard Model branching ratio of (8.4 ± 1.0) × 10−11. Two signal candidates are observed with an expected background of 1.5 events. Combined with the result of a similar analysis conducted by NA62 on a smaller data set recorded in 2016, the collaboration now reports an upper limit of 1.78 × 10−10 for the K+→ π+νν¯ branching ratio at 90% CL. This, together with the corresponding 68% CL measurement of (0.48−0.48+0.72) × 10−10, are currently the most precise results worldwide, and are able to constrain some New Physics models that predict large enhancements still allowed by previous measurements.
- ПубликацияТолько метаданныеSearch for Lepton Number and Flavor Violation in and Decays(2021) Aliberti, R.; Ambrosino, F.; Ammendola, R.; Angelucci, B.; Kudenko, Y.; Куденко, Юрий ГригорьевичSearches for the lepton number violating decay and the lepton flavor violating and decays are reported using data collected by the NA62 experiment at CERN in 2017-2018. No evidence for these decays is found and upper limits of the branching ratios are obtained at 90% confidence level: , and . These results improve by 1 order of magnitude over previous results for these decay modes. © 2021 Published by the American Physical Society
- ПубликацияТолько метаданныеThe ENUBET positron tagger prototype: construction and testbeam performance(2020) Acerbi, F.; Bonesini, M.; Bramati, F.; Branca, A.; Kudenko, Y.; Куденко, Юрий ГригорьевичA prototype for the instrumented decay tunnel of ENUBET was tested in 2018 at the CERN East Area facility with charged particles up to 5 GeV. This detector is a longitudinal sampling calorimeter with lateral scintillation light readout. The calorimeter was equipped by an additional "t(0)-layer" for timing and photon discrimination. The performance of this detector in terms of electron energy resolution, linearity, response to muons and hadron showers are presented in this paper and compared with simulation. The t(0)-layer was studied both in standalone mode using pion charge exchange and in combined mode with the calorimeter to assess the light yield and the 1 mip/2 mip separation capability. We demonstrate that this system fulfills the requirements for neutrino physics applications and discuss performance and additional improvements.
- ПубликацияТолько метаданныеCharacterization of the optical model of the T2K 3D segmented plastic scintillator detector unit cube(2025) Abe, S.; Alekseev, I.; Arai, T.; Kudenko, Y.; Куденко, Юрий Григорьевич
- ПубликацияТолько метаданныеDevelopment and tests of WLS plates for Outer Detector of Hyper-Kamiokande(2023) Kudenko, Y.; Khotjantsev, A.; Mineev, O.; Yershov, N.; Куденко, Юрий ГригорьевичThis paper describes measurements of photosensing units developed for the Outer Detector of Hyper-Kamiokande to increase the effective acceptance of Cherenkov radiation. The photosensing unit consists of a photomultiplier and a wavelength shifting plate optically coupled to it. Plates doped with different fluors and covered by different reflectors were tested using UV LED light sources in air and water. The effects of wavelength shifting fluors, side reflectors, water interface, and shaping of optical coupling are studied. Results of measurements of the light yield and its uniformity are presented. © 2022 Elsevier B.V.
- ПубликацияТолько метаданныеMeasurement of the muon neutrino charged-current cross sections on water, hydrocarbon and iron, and their ratios, with the T2K on-axis detectors(2019) Abe, K.; Akutsu, R.; Ali, A.; Andreopoulos, C.; Kudenko, Y.; Куденко, Юрий Григорьевич© 2019 The Author(s).We report a measurement of the flux-integrated νμ charged-current cross sections on water, hydrocarbon, and iron in the T2K on-axis neutrino beam with a mean neutrino energy of 1.5 GeV. The measured cross sections on water, hydrocarbon, and iron are σH2oCC = (0.840±0.010(stat.)+0.10-0.08(syst.)) ×10-38 cm2/nucleon, σCHCC = (0.817±0.007(stat.)+0.11-0.08(syst.)) × 10-38 cm2/nucleon, and σFeCC = (0.859±0.003(stat.)
- ПубликацияТолько метаданныеMeasurement of the T-Odd Correlation in the K + → π0 e +νeγ Radiative Decay at the OKA Setup(2022) Polyarush, A. Y.; Akimenko, S. A.; Artamonov, A. V.; Bychkov, V. N.; Gorin, A. M.; Gushchin, E. N.; Donskov, S. V.; Duk, V. A.; Zalikhanov, B. Z.; Inyakin, A. V.; Kekelidze, G. D.; Kolosov, V. N.; Kravtsov, V. I.; Kudenko, Y. G.; Куденко, Юрий ГригорьевичThe T-odd correlation ξπeγ, which is the mixed product of the momenta of e+, π0, and γ in the system of rest of the kaon divided by MK3, has been measured in the K+ → π0e+νeγ radiative decay among 101 200 candidate events detected at the OKA setup. The asymmetry of the distribution in ξπeγ is characterized by the ratio (Formula presented.), where N+ (-) is the number of events with positive (negative) ξ. The value Aξ = (+0.1 ± 3.9(stat.) ± 1.7(syst.)) × 10–3 or |Aξ| andlt; 5.4 × 10-3 (90% C.L.) has been obtained. © 2022, Pleiades Publishing, Inc.