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High Energy Physics - Phenomenology

arXiv:hep-ph/0506225 (hep-ph)
[Submitted on 23 Jun 2005 (v1), last revised 11 Jan 2006 (this version, v3)]

Title:Universality of the Collins-Soper-Sterman nonperturbative function in gauge boson production

Authors:Anton V. Konychev, Pavel M. Nadolsky
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Abstract: We revise the $b_*$ model for the Collins-Soper-Sterman resummed form factor to improve description of the leading-power contribution at nearly nonperturbative impact parameters. This revision leads to excellent agreement of the transverse momentum resummation with the data in a global analysis of Drell-Yan lepton pair and Z boson production. The nonperturbative contributions are found to follow universal quasi-linear dependence on the logarithm of the heavy boson invariant mass, which closely agrees with an estimate from the infrared renormalon analysis.
Comments: published version; 14 pages, 4 figures, additional discussion
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: ANL-HEP-PR-05-52
Cite as: arXiv:hep-ph/0506225
  (or arXiv:hep-ph/0506225v3 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0506225
Journal reference: Phys.Lett. B633 (2006) 710-714
Related DOI: https://doi.org/10.1016/j.physletb.2005.12.063

Submission history

From: Pavel Nadolsky [view email]
[v1] Thu, 23 Jun 2005 16:08:24 UTC (159 KB)
[v2] Tue, 28 Jun 2005 18:16:55 UTC (159 KB)
[v3] Wed, 11 Jan 2006 22:50:18 UTC (312 KB)
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