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<p>We present a comprehensive study of heavy-hadron production, including <i>D</i> and <i>B</i> mesons, heavy baryons, and the <i>B</i><sub><i>c</i></sub> meson. Our calculations are based on the <i>k</i><sub><i>t</i></sub>-factorization and scale-dependent fragmentation functions, completing the program of implementing this formalism within a variable-flavor-number scheme, as initiated in ref. [<CitationRef CitationID="CR1">1</CitationRef>]. Special emphasis is placed on the gluon-to-heavy-hadron contribution, which improves the description of data at small transverse momenta. Finally, we explore and compare different factorization schemes. We achieve the non-trivial task of providing a reasonable description of all the data considered in this study with a factorization scheme fixed once and for all.</p>

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Heavy-hadron production based on kt-factorization with scale-dependent fragmentation functions

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  • 发表日期：

    2025年5月14日

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  • F. E. Barattini,
  • C. O. Dib,
  • B. Guiot

摘要

We present a comprehensive study of heavy-hadron production, including D and B mesons, heavy baryons, and the Bc meson. Our calculations are based on the kt-factorization and scale-dependent fragmentation functions, completing the program of implementing this formalism within a variable-flavor-number scheme, as initiated in ref. [1]. Special emphasis is placed on the gluon-to-heavy-hadron contribution, which improves the description of data at small transverse momenta. Finally, we explore and compare different factorization schemes. We achieve the non-trivial task of providing a reasonable description of all the data considered in this study with a factorization scheme fixed once and for all.