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  <front xmlns:xlink="http://www.w3.org/1999/xlink">
    <journal-meta>
      <journal-title-group>
        <journal-title>St. Petersburg Polytechnic University Journal: Physics and Mathematics</journal-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Научно-технические ведомости СПбГПУ. Физико-математические науки</trans-title>
        </trans-title-group>
      </journal-title-group>
      <issn pub-type="epub">2304-9782, 2618-8686, 2405-7223</issn>
    </journal-meta>
    <article-meta xmlns:xlink="http://www.w3.org/1999/xlink">
      <article-id pub-id-type="publisher-id">12</article-id>
      <article-id pub-id-type="doi">10.18721/JPM.18112</article-id>
      <title-group>
        <article-title>Direct photon asymmetries in the longitudinally polarized proton-proton collisions at an energy of 27 GeV</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Асимметрии прямых фотонов в продольно-поляризованных протон-протонных столкновениях при энергии 27 ГэВ</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-8910-4775</contrib-id>
          <name>
            <surname>Lobanov</surname>
            <given-names>Andrey</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
          <email>lobanov2.aa@edu.spbstu.ru</email>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0003-0309-5917</contrib-id>
          <name>
            <surname>Berdnikov</surname>
            <given-names>Yaroslav</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
          <email>berdnikov@spbstu.ru</email>
        </contrib>
      </contrib-group>
      <aff id="aff1">Peter the Great St. Petersburg Polytechnic University</aff>
      <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2025-03-31">
        <day>31</day>
        <month>03</month>
        <year>2025</year>
      </pub-date>
      <volume>18</volume>
      <issue>1</issue>
      <fpage>142</fpage>
      <lpage>148</lpage>
      <self-uri xmlns:xlink="http://www.w3.org/1999/xlink" content-type="pdf" xlink:href="https://physmath.spbstu.ru/userfiles/files/articles/2025/1/12-Lobanov.pdf"/>
      <abstract xml:lang="en">
        <p>In this paper, we explore the potential of the generative-adversarial network (GAN) in order to predict the production of direct photons in the collision of unpolarized or longitudinally polarized protons at an energy of √s = 27 GeV. Our findings demonstrate that the GAN has been established to be capable of accurately reproducing the distributions of the physical characteristics of the produced direct photons. Moreover, the possibility to calculate the double longitudinal spin asymmetry of ALL was shown taking the values predicted by the GAN as a basis.</p>
      </abstract>
      <kwd-group xml:lang="en">
        <kwd>asymmetry</kwd>
        <kwd>direct photons</kwd>
        <kwd>neural network</kwd>
        <kwd>generative-adversarial network</kwd>
      </kwd-group>
    </article-meta>
  </front>
</article>
