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Collinear subtractions in hadroproduction of heavy quarks

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Abstract.

We present a detailed discussion of the collinear subtraction terms needed to establish a massive variable-flavor-number scheme for the one-particle inclusive production of heavy quarks in hadronic collisions. The subtraction terms are computed by convoluting appropriate partonic cross sections with perturbative parton distribution and fragmentation functions relying on the method of mass factorization. We find (with one minor exception) complete agreement with the subtraction terms obtained in a previous publication by comparing the zero-mass limit of a fixed-order calculation with the genuine massless results in the \({\overline{\mathrm{MS}}}\) scheme. This presentation will be useful for extending the massive variable-flavor-number scheme to other processes.

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Authors and Affiliations

  1. II. Institut für Theoretische Physik,, Universität Hamburg,, Luruper Chaussee 149,, 22761, Hamburg,, Germany

    B. A. Kniehl, G. Kramer & I. Schienbein

  2. Institut für Physik,, Johannes-Gutenberg-Universität,, Staudinger Weg 7,, 55099, Mainz,, Germany

    H. Spiesberger

Authors
  1. B. A. Kniehl
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  2. G. Kramer
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  3. I. Schienbein
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  4. H. Spiesberger
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Corresponding author

Correspondence to B. A. Kniehl.

Additional information

Received: 22 February 2005, Published online: 21 April 2005

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Kniehl, B.A., Kramer, G., Schienbein, I. et al. Collinear subtractions in hadroproduction of heavy quarks. Eur. Phys. J. C 41, 199–212 (2005). https://doi.org/10.1140/epjc/s2005-02200-7

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