Examinando por Autor "Kuleshov S."

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    Observation of Collider Muon Neutrinos with the SND@LHC Experiment
    (American Physical Society, 2023-07) Albanese R.; Alexandrov A.; Alicante F.; Anokhina A.; Asada T.; Battilana C.; Bay A.; Betancourt C.; Biswas R.; Blanco Castro A.; Bogomilov M.; Bonacorsi D.; Bonivento W.M.; Bordalo P.; Boyarsky A.; Buontempo S.; Campanelli M.; Camporesi T.; Canale V.; Castro A.; Centanni D.; Cerutti F.; Chernyavskiy M.; Choi K.-Y.; Cholak S.; Cindolo F.; Climescu M.; Conaboy A.P.; Dallavalle G.M.; Davino D.; De Bryas P.T.; De Lellis G.; De Magistris M.; De Roeck A.; De Rújula A.; De Serio M.; De Simone D.; Di Crescenzo A.; Donà R.; Durhan O.; Fabbri F.; Fedotovs F.; Ferrillo M.; Ferro-Luzzi M.; Fini R.A.; Fiorillo A.; Fresa R.; Funk W.; Garay Walls F.M.; Golovatiuk A.; Golutvin A.; Graverini E.; Guler A.M.; Guliaeva V.; Haefeli G.J.; Helo Herrera J.C.; Van Herwijnen E.; Iengo P.; Ilieva S.; Infantino A.; Iuliano A.; Jacobsson R.; Kamiscioglu C.; Kauniskangas A.M.; Khalikov E.; Kim S.H.; Kim Y.G.; Klioutchnikov G.; Komatsu M.; Konovalova N.; Kovalenko S.; Kuleshov S.; Lacker H.M.; Lantwin O.; Lasagni Manghi F.; Lauria A.; Lee K.Y.; Lee K.S.; Lo Meo S.; Loschiavo V.P.; Marcellini S.; Margiotta A.; Mascellani A.; Miano A.; Mikulenko A.; Montesi M.C.; Navarria F.L.; Ogawa S.; Okateva N.; Ovchynnikov M.; Paggi G.; Park B.D.; Pastore A.; Perrotta A.; Podgrudkov D.; Polukhina N.; Prota A.; Quercia A.; Ramos S.; Reghunath A.; Roganova T.; Ronchetti F.; Rovelli T.; Ruchayskiy O.; Ruf T.; Sabate Gilarte M.; Samoilov M.; Scalera V.; Schneider O.; Sekhniaidze G.; Serra N.; Shaposhnikov M.; Shevchenko V.; Shchedrina T.; Shchutska L.; Shibuya H.; Simone S.; Siroli G.P.; Sirri G.; Soares G.; Soto Sandoval O.J; Spurio M.; Starkov N.; Timiryasov I.; Tioukov V.; Tramontano F.; Trippl C.; Ursov E.; Ustyuzhanin A.; Vankova-Kirilova G.; Verguilov V.; Viegas Guerreiro Leonardo N.; Vilela C.; Visone C.; Wanke R.; Yaman E.; Yazici C.; Yoon C.S.; Zaffaroni E.; Zamora Saa J.
    We report the direct observation of muon neutrino interactions with the SND@LHC detector at the Large Hadron Collider. A dataset of proton-proton collisions at s=13.6 TeV collected by SND@LHC in 2022 is used, corresponding to an integrated luminosity of 36.8 fb-1. The search is based on information from the active electronic components of the SND@LHC detector, which covers the pseudorapidity region of 7.2<η<8.4, inaccessible to the other experiments at the collider. Muon neutrino candidates are identified through their charged-current interaction topology, with a track propagating through the entire length of the muon detector. After selection cuts, 8 νμ interaction candidate events remain with an estimated background of 0.086 events, yielding a significance of about 7 standard deviations for the observed νμ signal. © 2023 authors. Published by the American Physical Society. Published by the American Physical Society.
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    Toward a search for axionlike particles at the LNLS
    (American Physical Society, 2023-09) Angel L.; Arias P.; Dib C.O.; De Jesus A.S.; Kuleshov S.; Kozhuharov V.; Lin L.; Lindner M.; Queiroz F.S.; Silva R.C.; Villamizar Y.
    Axionlike particles (ALPs) appear in several dark sector studies. They have gained increasing attention from the theoretical and experimental community. In this work, we propose the first search for ALPs to be conducted at the Brazilian Synchrotron Light Laboratory (LNLS). In this work, we derive the projected sensitivity of a proposed experiment for the production of ALPs via the channel e+e-→aγ. We show that such an experiment could probe ALP masses between 1-55 MeV, and ALP-electron couplings down to gaee=2-6×10-4 GeV-1 depending on the energy beam, thickness of the target, and background assumptions. Therefore, this quest would cover an unexplored region of parameter space for experiments of this kind, constitute a promising probe for dark sectors, and potentially become the first Latin-American dark sector detector. © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.