Study of low-energy QCD in meson reactions with the Coulomb field of atomic nuclei

A. Guskov; A. Maltsev; A. Olshevskiy

doi:10.54546/NaturalSciRev.200602

Дополнительно

Прислана: 08.12.2025; Принята: 02.02.2026; Опубликовано 27.02.2026;

Просмотры: 82; Загружено: 14

Как цитировать

А. Гуськов, А. Мальцев, А. Ольшевский. "Study of low-energy QCD in meson reactions with the Coulomb field of atomic nuclei" Natural Sci. Rev. 3 200602 (2026)
https://doi.org/10.54546/NaturalSciRev.200602

А. Гуськов^1,a, А. Мальцев^1,2, А. Ольшевский¹

¹Объединенный институт ядерных исследований, г. Дубна, Россия
²Мюнхенский технический университет, Мюнхен, Германия

^aavg@jinr.ru

DOI: 10.54546/NaturalSciRev.200602

Ключевые слова: низкоэнергетическая КХД, поляризуемость мезонов, хиральная аномалия

Категории: Физика , Физика высоких энергий (эксперимент) , 70-летие ОИЯИ

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Аннотация

Представлен обзор развития теоретических и экспериментальных исследований параметров низкоэнергетической КХД, начиная с первых работ в Лаборатории теоретической физики ОИЯИ до современных измерений в ЦЕРН. Кратко обобщён исторический контекст, а также новаторские теоретические подходы, применявшиеся в ОИЯИ для вычисления параметров мезонов в различных адронных моделях, заложившие основу для экспериментального предложения по изучению поляризуемости пиона в реакции радиационного рассеяния на ядрах. Первое наблюдение эффекта Комптона на пионе и первые измерения поляризуемости заряженного пиона и константы γ → 3π, проведённые на ускорителе У-70, представлены как ключевые события, позволившие приступить к количественным исследованиям структуры мезонов и подчеркнувшие их влияние на феноменологию низкоэнергетической КХД. Дальнейший прогресс в теоретических прогнозах позволил выявить необходимость более высокоточных экспериментальных данных, что послужило стимулом для новых измерений с использованием пучков пионов в эксперименте COMPASS в ЦЕРН. Намечены планы будущих исследований в рамках эксперимента AMBER, где использование каонных пучков позволит провести прецизионные измерения поляризуемости каонов и связанных с ними низкоэнергетических констант, что улучшит понимание динамики сильных взаимодействий.

Поддерживающие организации

The authors are grateful to all colleagues who participated in the discussed studies, in particular, the team of the joint JINR–IHEP experiment with the SIGMA spectrometer and the international team of the COMPASS experiment at CERN.

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