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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Юрий Григорьевич
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- ПубликацияТолько метаданныеCurrent Status of the Novel 3D SuperFGD Detector for the T2K Experiment(2023) Dergacheva, A.; Chernov, D. O.; Chvirova, A. A.; Erofeev, G.; Kudenko, Y. G.; Куденко, Юрий ГригорьевичThis paper is devoted to the current status of the novel fully active 3D (three-dimensional) fine-grained scintillator detector SuperFGD as a main part of the near off-axis detector upgrade program for the T2K experiment. The following important components related to the SuperFGD such as SuperFGD electronics and mechanics, wavelength shifting (WLS) fibers, and light emitting diode (LED) calibration system are also discussed here as well as the detector’s near future.
- ПубликацияТолько метаданныеMeasurement of the muon neutrino charged-current single pi(+) production on hydrocarbon using the T2K off-axis near detector ND280(2020) Abe, K.; Akutsu, R.; Ali, A.; Alt, C.; Kudenko, Y.; Куденко, Юрий ГригорьевичWe report the measurements of the single and double differential cross section of muon neutrino charged-current interactions on carbon with a single positively charged pion in the final state at the T2K off-axis near detector using 5.56 x 10(20) protons on target. The analysis uses data control samples for the background subtraction and the cross section signal, defined as a single negatively charged muon and a single positively charged pion exiting from the target nucleus, is extracted using an unfolding method. The model-dependent cross section, integrated over the T2K off-axis neutrino beam spectrum peaking at 0.6 GeV, is measured to be sigma = (11.76 +/- 0.44(stat) +/- 2.39(syst)) x 10(-40) cm(2) nucleon(-1). Various differential cross sections are measured, including the first measurement of the Adler angles for single charged pion production in neutrino interactions with heavy nuclei target.
- ПубликацияОткрытый доступMeasurements of neutrino oscillation parameters from the T2K experiment using 3.6 × 10 21 protons on target(2023) Abe, K.; Akhlaq, N.; Akutsu, R.; Ali, A.; Kudenko, Y.; Куденко, Юрий Григорьевич
- ПубликацияТолько метаданныеSearch for production of an invisible dark photon in (0) decays(2019) Gil, E. Cortina.; Kleimenova, A.; Minucci, E.; Padolski, S.; Kudenko, Y.; Куденко, Юрий ГригорьевичThe results of a search for (0) decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 x 10(8) tagged (0) mesons, no signal is observed. Assuming a kinetic-mixing interaction, limits are set on the dark photon coupling to the ordinary photon as a function of the dark photon mass, improving on previous searches in the mass range 60-110 MeV/c(2). The present results are interpreted in terms of an upper limit of the branching ratio of the electro-weak decay 0improving the current limit by more than three orders of magnitude.
- ПубликацияТолько метаданныеThe magnet of the scattering and neutrino detector for the SHiP experiment at CERN(2020) Ahdida, C.; Albanese, R.; Alexandrov, A.; Anokhina, A.; Atkin, E.; Dmitrenko, V.; Etenko, A.; Filippov, K.; Gavrilov, G.; Grachev, V.; Kudenko, Y.; Novikov, A.; 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© 2020 CERN. Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.The Search for Hidden Particles (SHiP) experiment proposal at CERN demands a dedicated dipole magnet for its scattering and neutrino detector. This requires a very large volume to be uniformly magnetized at B > 1.2 T, with constraints regarding the inner instrumented volume as well as the external region, where no massive structures are allowed and only an extremely low stray field is admitted. In this paper we report the main technical challenges and the relevant design options providing a comprehensive design for the magnet of the SHiP Scattering and Neutrino Detector.
- ПубликацияТолько метаданныеMeasurement of the very rare K + → π+νν¯ decay(2021) Cortina, G. E.; Kleimenova, A.; Minucci, E.; Padolski, S.; Kudenko, Y.; Куденко, Юрий Григорьевич© 2021, The Author(s).The NA62 experiment reports the branching ratio measurement BR(K+→π+νν¯)=(10.6−3.4+4.0|stat±0.9syst)×10−11 at 68% CL, based on the observation of 20 signal candidates with an expected background of 7.0 events from the total data sample collected at the CERN SPS during 2016–2018. This provides evidence for the very rare K+→π+νν¯ decay, observed with a significance of 3.4σ. The experiment achieves a single event sensitivity of (0.839 ± 0.054) × 10−11, corresponding to 10.0 events assuming the Standard Model branching ratio of (8.4 ± 1.0) × 10−11. This measurement is also used to set limits on BR(K+→ π+X), where X is a scalar or pseudo-scalar particle. Details are given of the analysis of the 2018 data sample, which corresponds to about 80% of the total data sample.
- ПубликацияТолько метаданныеA search for the K+ -> mu(-)ve(+)e(+) decay(2023) Cortina, E.; Kleimenova, A.; Minucci, E.; Padolski, S.; Kudenko, Y.; Куденко, Юрий ГригорьевичA search for the K+ -> mu(-)ve(+)e(+) decay, forbidden within the Standard Model by either lepton number or lepton flavour conservation depending on the flavour of the emitted neutrino, has been performed using the dataset collected by the NA62 experiment at CERN in 2016-2018. An upper limit of 8.1 x 10(-11) is obtained for the decay branching fraction at 90% CL, improving by a factor of 250 over the previous search. (c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP(3).
- ПубликацияТолько метаданныеFirst measurement of the charged current (nu)over-bar(mu) double differential cross section on a water target without( )pions in the final state(2020) Abe, K.; Akutsu, R.; Ali, A.; Alt, C.; Kudenko, Y.; Куденко, Юрий ГригорьевичThis paper reports the first differential measurement of the charged-current (nu) over bar (mu) interaction cross section on water with no pions in the final state. The unfolded flux-averaged measurement using the T2K off-axis near detector is given in double-differential bins of mu(+) momentum and angle. The integrated cross section in a restricted phase space is sigma = (1.11 +/- 0.18) x 10(-38) cm(2) per water molecule. Comparisons with several nuclear models are also presented.
- ПубликацияТолько метаданныеLight Collection System by Means of the WLS Plates for the Outer Detector of the Hyper-Kamiokande Project(2025) Izmailov, A.O.; Khotyantsev, A. N.; Kudenko, Y. G.; Mineev, O. V.; Куденко, Юрий Григорьевич
- ПубликацияОткрытый доступMeasurements of the νμ and ν ¯ μ -induced coherent charged pion production cross sections on C 12 by the T2K experiment(2023) Abe, K.; Akhlaq, N.; Akutsu, R.; Ali, A.; Kudenko, Y.; Куденко, Юрий Григорьевич