Abstract
When parton distributions are falling steeply as the momentum fractions of the partons increases, there are effects that occur at each order in α s that combine to affect hard scattering cross sections and need to be summed. We show how to accomplish this in a leading approximation in the context of a parton shower Monte Carlo event generator.
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Nagy, Z., Soper, D.E. Summing threshold logs in a parton shower. J. High Energ. Phys. 2016, 19 (2016). https://doi.org/10.1007/JHEP10(2016)019
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DOI: https://doi.org/10.1007/JHEP10(2016)019