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Evidence for the discrete asymptotically-free BFKL Pomeron from HERA data

Evidence for the discrete asymptotically-free BFKL Pomeron from HERA data
Evidence for the discrete asymptotically-free BFKL Pomeron from HERA data
We show that the next-to-leading-order renormalization-group-improved asymptotically-free BFKL Pomeron provides a good fit to HERA data on virtual photoproduction at small x and large Q2. The leading discrete Pomeron pole reproduces qualitatively the Q2 dependence of the HERA data for x10?3, and a fit using the three leading discrete singularities reproduces quantitatively the Q2 and x dependence of the HERA data for x<10?2. This fit fixes the phase for all the BFKL wavefunctions at a chosen infrared scale.
0370-2693
51-56
Ellis, J.
2dd4cce8-c2ae-44cd-8bda-6d877e371c2a
Kowalski, H.
36abd3ae-4d24-4630-884c-5a6d464e7a15
Ross, D.A.
eb79bbfe-fb97-4bb3-813c-98f278e5a55f
Ellis, J.
2dd4cce8-c2ae-44cd-8bda-6d877e371c2a
Kowalski, H.
36abd3ae-4d24-4630-884c-5a6d464e7a15
Ross, D.A.
eb79bbfe-fb97-4bb3-813c-98f278e5a55f

Ellis, J., Kowalski, H. and Ross, D.A. (2008) Evidence for the discrete asymptotically-free BFKL Pomeron from HERA data. Physics Letters B, 668 (1), 51-56. (doi:10.1016/j.physletb.2008.08.007).

Record type: Article

Abstract

We show that the next-to-leading-order renormalization-group-improved asymptotically-free BFKL Pomeron provides a good fit to HERA data on virtual photoproduction at small x and large Q2. The leading discrete Pomeron pole reproduces qualitatively the Q2 dependence of the HERA data for x10?3, and a fit using the three leading discrete singularities reproduces quantitatively the Q2 and x dependence of the HERA data for x<10?2. This fit fixes the phase for all the BFKL wavefunctions at a chosen infrared scale.

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e-pub ahead of print date: 7 August 2008
Published date: 25 September 2008

Identifiers

Local EPrints ID: 144573
URI: http://eprints.soton.ac.uk/id/eprint/144573
DOI: doi:10.1016/j.physletb.2008.08.007
ISSN: 0370-2693
PURE UUID: 6df52aa5-9e23-4cbc-ac74-b42686159d2d

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Date deposited: 14 Apr 2010 12:56
Last modified: 14 Mar 2024 00:46

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Contributors

Author: J. Ellis
Author: H. Kowalski
Author: D.A. Ross

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