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<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/S2079562925060120</article-id><article-id custom-type="edn" pub-id-type="custom">GHZOKZ</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-620</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>Взаимодействие плазмы, пучков частиц и излучения с веществом</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Interaction of Plasma, Particle Beams and Radiation with Matter</subject></subj-group></article-categories><title-group><article-title>ИСПОЛЬЗОВАНИЕ АКСИАЛЬНОЙ АНОМАЛИИ ДЛЯ ИЗУЧЕНИЯ НЕПЕРТУРБАТИВНЫХ ЯВЛЕНИЙ В КХД</article-title><trans-title-group xml:lang="en"><trans-title>USING THE AXIAL ANOMALY TO STUDY NON-PERTURBATIVE PHENOMENA IN QCD</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>Хлебцов</surname><given-names>С. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Khlebtsov</surname><given-names>S. P.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Оганесян</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Oganesian</surname><given-names>A. G.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский центр “Курчатовский институт”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Centre “Kurchatov Institute”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский центр “Курчатовский институт”;&#13;
Лаборатория теоретической физики им. Н.Н. Боголюбова, Объединенный институт ядерных исследований</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Centre “Kurchatov Institute”;&#13;
Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>16</day><month>04</month><year>2026</year></pub-date><volume>17</volume><issue>1</issue><fpage>158</fpage><lpage>164</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Хлебцов С.П., Оганесян А.Г., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Хлебцов С.П., Оганесян А.Г.</copyright-holder><copyright-holder xml:lang="en">Khlebtsov S.P., Oganesian A.G.</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/620">https://npe.elpub.ru/jour/article/view/620</self-uri><abstract><p>В рамках дисперсионного подхода к аксиальной аномалии рассмотрены как Абелев, так и не-Абелев случаи. Были выведены аномальные правила сумм для изовекторного, октетного и синглетного токов, которые позволяют связать экспериментально наблюдаемые величины переходные форм-факторы π0,η,η′→γγ(∗) с непертурбативным глюонным матричным элементом ⟨0|GG˜|γγ(∗)⟩. Получено описание этого матричного элемента, как функции от виртуальности фотона, в различных кинематических областях.</p></abstract><trans-abstract xml:lang="en"><p>In the framework of the dispersion approach to the axial anomaly, both Abelian and non-Abelian cases are considered. Anomalous sum rules for isovector, octet and singlet currents are derived, which allow us to relate the experimentally observed quantities, the transition form factors π0,η,η′→γγ(∗), with the non-perturbative gluon matrix element ⟨0|GG˜|γγ(∗)⟩. A description of this matrix element is obtained as a function of the photon virtuality in various kinematic regions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>аксиальная аномалия</kwd><kwd>переходный форм-фактор</kwd><kwd>псевдоскалярные мезоны</kwd><kwd>аномальные правила сумм</kwd><kwd>глюонная аномалия</kwd><kwd>ФВЭ-феноменология</kwd><kwd>ФВЭ-теория</kwd></kwd-group><kwd-group xml:lang="en"><kwd>axial anomaly</kwd><kwd>transition form-factor</kwd><kwd>pseudoscalar mesons</kwd><kwd>anomaly sum rules</kwd><kwd>gluon anomaly</kwd><kwd>HEP-phenomenology</kwd><kwd>HEP-theory</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа проведена в рамках выполнения государственного задания НИЦ “Курчатовский институт”.</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">Adler S.L. // Phys. Rev. 1969. V. 177. 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