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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8323-2018-62-6-661-667</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-565</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>ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICS</subject></subj-group></article-categories><title-group><article-title>Фермион с тремя массовыми параметрами: взаимодействие с внешними полями</article-title><trans-title-group xml:lang="en"><trans-title>Fermion with three mass parameters: interaction with external fields</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>Кисель</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kisel</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. физ.-мат. наук, доцент</p></bio><bio xml:lang="en"><p>Ph. D. (Physics and Mathematics), Associate рrofessor</p></bio><email xlink:type="simple">Vasiliy_bspu@mail.ru</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>Плетюхов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pletyukhov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р физ.-мат. наук, профессор</p></bio><bio xml:lang="en"><p>D. Sc. (Physics and Mathematics), Professor</p></bio><email xlink:type="simple">terphys@brsu.brest.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Овсиюк</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Ovsiyuk</surname><given-names>E. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. физ.-мат. наук, доцент</p></bio><bio xml:lang="en"><p>Ph. D. (Physics and Mathematics), Associate рrofessor</p></bio><email xlink:type="simple">e.ovsiyuk@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Войнова</surname><given-names>Я. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Voynova</surname><given-names>Ya. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант</p></bio><bio xml:lang="en"><p>Postgraduate student</p></bio><email xlink:type="simple">voinyuschka@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Веко</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Veko</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. физ.-мат. наук, науч. сотрудник</p></bio><bio xml:lang="en"><p>Ph. D. (Physics and Mathematics), Researcher</p></bio><email xlink:type="simple">vekoolga@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Редьков</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Red’kov</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р физ.-мат. наук, гл. науч. сотрудник</p></bio><bio xml:lang="en"><p>D. Sc. (Physics and Mathematics), Chief researcher</p></bio><email xlink:type="simple">redkov@ifanbel.bas-net.by</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет информатики и радиоэлектроники, Минск</institution></aff><aff xml:lang="en"><institution>Belarusian State University of Informatics and Radioelectronics, Minsk</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Брестский государственный университет им. А. С. Пушкина, Брест</institution></aff><aff xml:lang="en"><institution>Brest State University named after A. S. Pushkin, Brest</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Мозырский государственный педагогический университет им. И. П. Шамякина, Мозырь</institution></aff><aff xml:lang="en"><institution>Mozyr State Pedagogical University named after I. P. Shamyakin, Mozyr</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Институт физики им. Б. И. Степанова Национальной академии наук Беларуси,&#13;
Минск</institution></aff><aff xml:lang="en"><institution>B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus, Minsk</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>13</day><month>01</month><year>2019</year></pub-date><volume>62</volume><issue>6</issue><fpage>661</fpage><lpage>667</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кисель В.В., Плетюхов В.А., Овсиюк Е.М., Войнова Я.А., Веко О.В., Редьков В.М., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Кисель В.В., Плетюхов В.А., Овсиюк Е.М., Войнова Я.А., Веко О.В., Редьков В.М.</copyright-holder><copyright-holder xml:lang="en">Kisel V.V., Pletyukhov V.A., Ovsiyuk E.M., Voynova Y.A., Veko O.V., Red’kov V.M.</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://doklady.belnauka.by/jour/article/view/565">https://doklady.belnauka.by/jour/article/view/565</self-uri><abstract><p>В рамках формализма Гельфанда–Яглома развита теория частицы со спином 1/2 и тремя массовыми параметрами. Модель основана на использовании расширенного набора представлений группы Лоренца, 20-компонентная волновая функция состоит из биспинора и вектор-биспинора. Из волновой функции строятся три вспомогательных биспинора, выведена система уравнений для этих биспиноров. При отсутствии внешних полей система имеет вид трех несвязанных уравнений дираковского типа с различными массами M1 , M2 , M3 . При наличии внешнего электромагнитного поля уравнения для трех биспиноров зацепляются друг с другом. Выполнено обобщение на случай искривленных моделей пространства. Если скалярная кривизна пространства отлична от нуля, то между тремя биспинорными компонентами возникают дополнительные геометрические члены взаимодействия. Показано, что модель фермиона с тремя массовыми параметрами допускает ограничение к случаю майорановских частиц.</p></abstract><trans-abstract xml:lang="en"><p>In the article, using the Gelfand–Yaglom general approach, a new 20-component wave equation for spin 1/2 fermion that is characterized by three mass parameters is derived. Based on the 20-component wave function three auxiliary bispinors are determined, in the absence of an external field, these bispinors obey three separate Dirac-like equations with different masses M1 , M2 , M3 . In the presence of external electromagnetic fields, the main equation is not split into the separated equations; instead quite definite mixing of three Dirac-like equations arises. The model is extended to the curved space-time background. If the scalar space curvature differs from zero, then additional terms of geometrical interaction occur between three bispinor components. The model for fermion with three mass parameters allows for the restriction to the case of the neutral Majorana particle.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>уравнение Дирака</kwd><kwd>обобщенные волновые уравнения</kwd><kwd>три массовых параметра</kwd><kwd>электромагнитное поле</kwd><kwd>искривленное пространство–время</kwd><kwd>нейтральная майорановская частица</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Dirac equation</kwd><kwd>generalized wave equation</kwd><kwd>three mass parameters</kwd><kwd>electromagnetic field</kwd><kwd>curved space-time</kwd><kwd>neutral Majorana particle</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Гинзбург, В. Л. О волновых уравнениях для частиц с переменным спином / В. Л. Гинзбург, Я. А. Смородинский // ЖЭТФ. – 1943. – Т. 13. – С. 274.</mixed-citation><mixed-citation xml:lang="en">Ginzburg V. l., Smorodinskiy ya. 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