<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.56304/S2079562922050323</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-178</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Ускорители заряженных частиц для ядерных технологий</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Charged Particles Accelerators for Nuclear Technologies</subject></subj-group></article-categories><title-group><article-title>Исследование механизмов спиновой декогерентности протонов на ускорителе COSY</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of Proton Spin Decoherence Mechanisms at COSY</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мельников</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Melnikov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 117312 </p></bio><bio xml:lang="en"><p>Moscow, 117312 </p></bio><email xlink:type="simple">alexei.a.melnikov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аксентьев</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Aksentev</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 117312; Москва, 115409</p></bio><bio xml:lang="en"><p>Moscow, 117312; Moscow, 115409</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сеничев</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Senichev</surname><given-names>Y. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 117312 </p></bio><bio xml:lang="en"><p>Moscow, 117312 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт ядерных исследований РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Nuclear Research, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт ядерных исследований РАН; Национальный исследовательский ядерный университет “МИФИ”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Nuclear Research, Russian Academy of Sciences; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>31</day><month>12</month><year>2023</year></pub-date><volume>14</volume><issue>4</issue><fpage>380</fpage><lpage>384</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мельников А.А., Аксентьев А.Е., Сеничев Ю.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Мельников А.А., Аксентьев А.Е., Сеничев Ю.В.</copyright-holder><copyright-holder xml:lang="en">Melnikov A.A., Aksentev A.E., Senichev Y.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://npe.elpub.ru/jour/article/view/178">https://npe.elpub.ru/jour/article/view/178</self-uri><abstract><p>Исследовалась спин-орбитальная динамика в ускорителе COSY. В численном эксперименте было подтверждено, что спиновая декогерентность пучка определяется нелинейной частью решения уравнения принципа автофазировки. Было показано, что эффекты спиновой декогерентности определяются тремя параметрами структуры ускорителя: горизонтальной и вертикальной хроматичностью, а также нелинейным коэффициентом сжатия орбит.</p></abstract><trans-abstract xml:lang="en"><p>Spin-orbital dynamics at COSY accelerator has been investigated. It has been shown in the numerical experiment that spin-decoherence of the beam is determined by the nonlinear part of the solution of the equation of synchronous acceleration principle. It has been shown that the effects of spin-decoherence are defined by the three parameters of the lattice: horizontal and vertical chromaticity, as well as nonlinear momentum compaction factor.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>спин-орбитальная динамика</kwd><kwd>спин-декогерентность</kwd><kwd>спиновые резонансы</kwd><kwd>электрический дипольный момент</kwd></kwd-group><kwd-group xml:lang="en"><kwd>spin-orbital dynamics</kwd><kwd>spin-decoherence</kwd><kwd>spin resonances</kwd><kwd>electric dipole moment</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность Российскому научному фонду за поддержку данного исследования (грант 22-42-04419).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Senichev Y. et al. // Proc. Int. Particle Accelerator Conf. (IPAC'13). 2013. P. 2579–2581.</mixed-citation><mixed-citation xml:lang="en">Senichev Y. et al. // Proc. Int. Particle Accelerator Conf. (IPAC'13). 2013. P. 2579–2581.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Guidoboni G. et al. // Phys. Rev. Lett. 2016. V. 117 (5). P. 054801.</mixed-citation><mixed-citation xml:lang="en">Guidoboni G. et al. // Phys. Rev. Lett. 2016. V. 117 (5). P. 054801.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">System COSY INFINITY. https://www.bmtdynamics.org/cosy/.</mixed-citation><mixed-citation xml:lang="en">System COSY INFINITY. https://www.bmtdynamics.org/cosy/.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Rosenthal M. // Experimental Benchmarking of Spin Tracking Algorithms for Electric Dipole Moment Searches at the Cooler Synchrotron COSY. 2016. Ph.D. Thesis: RWTH Aachen Univ.</mixed-citation><mixed-citation xml:lang="en">Rosenthal M. // Experimental Benchmarking of Spin Tracking Algorithms for Electric Dipole Moment Searches at the Cooler Synchrotron COSY. 2016. Ph.D. Thesis: RWTH Aachen Univ.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
