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Energy and scale dependence of heavy-quark production in QCD

  • Published:
Il Nuovo Cimento A (1965-1970)

Summary

We consider the energy dependence of charm and beauty production cross-sections in pp or\(\bar pp\) collisions up to √s=200 TeV for different values of the scale μ2, using different proton structure functions. The cross-sections are computed accounting for leading-order and next-to-leading order perturbative QCD contributions. The values ofK-factors increase significantly with the energy for relatively small scale values, μ2≈M 2, whereM is the heavy-quark mass, and do not practically depend on the energy for higher values, μ2=4M 2−8M 2. The calculated cross-sections as functions of the energy for different values of μ2 have a common crossing point if the gluon structure functions used have proper Altarelli-Parisi μ2-evolution. The same holds true when considering the energy and scale dependence of the heavy-quark cross-sections in high-energy photoproduction.

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Authors and Affiliations

  1. CERN, Geneva, Switzerland

    A. Contin & A. Zichichi

  2. INFN, Sezione di Bologna, Bologna, Italy

    F. Arzarello, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, G. Bruni, P. Bruni, G. Cara Romeo, M. Chiarini, L. Cifarelli, F. Cindolo, F. Ciralli, A. Contin, S. D’Auria, C. Del Papa, F. Frasconi, P. Giusti, G. Iacobucci, A. Margotti, T. Massam, R. Nania, S. Qian, G. Sartorelli, R. Timellini & A. Zichichi

  3. INFN, Eloisatron Project, Erice, Italy

    Liu Wenje, Yu. M. Shabelski & O. P. Strogova

  4. INFN, LNF, Frascati, Italy

    G. Anzivino, S. De Pasquale, G. Maccarone & L. Votano

  5. INFN, Sezione di Torino, Torino, Italy

    M. Dardo

  6. INP, Moscow State University, Moscow, Russia

    O. P. Strogova

  7. Institute of Mechanics, Beijing, China

    Liu Wenje

  8. Physics Department, University of Bologna, Bologna, Italy

    M. Basile, C. Del Papa & G. Sartorelli

  9. Physics Department, University of Pisa, Pisa, Italy

    L. Cifarelli

  10. PNPI, Gatchina, St. Petersburg, Russia

    Yu. M. Shabelski

  11. II Faculty of Science, University of Torino, Alessandria, Italy

    M. Dardo

  12. World Laboratory, Lausanne, Switzerland

    M. Chiarini, Liu Wenje, S. Qian, Yu. M. Shabelski, O. P. Strogova & R. Timellini

Authors
  1. G. Anzivino
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  2. F. Arzarello
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  3. G. Bari
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  4. M. Basile
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  5. L. Bellagamba
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  6. D. Boscherini
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  7. G. Bruni
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  8. P. Bruni
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  9. G. Cara Romeo
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  10. M. Chiarini
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  11. L. Cifarelli
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  12. F. Cindolo
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  13. F. Ciralli
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  14. A. Contin
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  15. M. Dardo
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  16. S. D’Auria
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  17. C. Del Papa
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  18. S. De Pasquale
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  19. F. Frasconi
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  20. P. Giusti
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  21. G. Iacobucci
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  22. Liu Wenje
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  23. G. Maccarone
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  24. A. Margotti
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  25. T. Massam
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  26. R. Nania
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  27. S. Qian
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  28. G. Sartorelli
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  29. Yu. M. Shabelski
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  30. O. P. Strogova
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  31. R. Timellini
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  32. L. Votano
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  33. A. Zichichi
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Anzivino, G., Arzarello, F., Bari, G. et al. Energy and scale dependence of heavy-quark production in QCD. Nuov Cim A 107, 901–919 (1994). https://doi.org/10.1007/BF02731104

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  • DOI: https://doi.org/10.1007/BF02731104

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