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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Discrete and Continuous Models and Applied Computational Science</journal-id><journal-title-group><journal-title xml:lang="en">Discrete and Continuous Models and Applied Computational Science</journal-title><trans-title-group xml:lang="ru"><trans-title>Discrete and Continuous Models and Applied Computational Science</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2658-4670</issn><issn publication-format="electronic">2658-7149</issn><publisher><publisher-name xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">51146</article-id><article-id pub-id-type="edn">JWJLYJ</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Physics and Astronomy</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Физика</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Electromagnetic Structure of State 1f7/2 for Nuclei in reactions e- +A→e- +A</article-title><trans-title-group xml:lang="ru"><trans-title>Электромагнитная структура состояния 1f7/2 ядер в реакциях e- +A→e- +A</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bogdanov</surname><given-names>Yu. P.</given-names></name><name xml:lang="ru"><surname>Богданов</surname><given-names>Ю. П.</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples' Friendship University of Russia</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2007-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2007</year></pub-date><issue>3-4</issue><issue-title xml:lang="en">NO3-4 (2007)</issue-title><issue-title xml:lang="ru">№3-4 (2007)</issue-title><fpage>101</fpage><lpage>106</lpage><history><date date-type="received" iso-8601-date="2026-07-08"><day>08</day><month>07</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2007, Bogdanov Y.P.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2007, Богданов Ю.П.</copyright-statement><copyright-year>2007</copyright-year><copyright-holder xml:lang="en">Bogdanov Y.P.</copyright-holder><copyright-holder xml:lang="ru">Богданов Ю.П.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/miph/article/view/51146">https://journals.rudn.ru/miph/article/view/51146</self-uri><abstract xml:lang="en">Elastic electron scattering on nuclei of spin $7/2$ is considered on the base of Rarita--Schwinger wave functions. The expressions for covariant electromagnetic vertex function and projection (spin density matrix) are derived. Furthermore these results with a help of the multipole resolution method yielded in general formulas for multipole and invariant form factors, the latter are useful in the analysis of its asymptotic properties induced by the quark structure of nuclei.</abstract><trans-abstract xml:lang="ru">В статье рассмотрено упругое рассеяние электронов на ядрах спина $7/2$ на основе волновых функций Рариты--Швингера. Получены выражения для электромагнитного тока ядра и проекционного оператора (спиновая матрица плотности). На основе этих выражений с помощью мультипольного разложения найдены общие соотношения для мультипольных и инвариантных формфакторов. Полученные формулы могут быть особенно полезны при изучении асимптотических свойств формфактора, индуцированных кварковой структурой ядра.</trans-abstract></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Ricci R. A. On Electromagnetic Structure of 1f7/2 nuclei // Proc. Topical Conf. on the Struct. of 1f7/2 nuclei. - Legnaro: 1971.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Sick I. Radial Wave Functions of Valence Nucleons // Comments on Nuclear and Particle Physics. - Vol. 9, No 2. - 1980. - Pp. 55-66.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>De Witt Huberts P. K. A. On the Radial Description of the 1f7/2 Proton Orbit // Physics Letters. - Vol. 71B, No 2. - 1977. - P. 317.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Nascimento I. O. 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