Abstract
We determine the infrared behaviour of the BFKL forward amplitude for gluon–gluon scattering. Our approach, based on the discrete pomeron solution, leads to an excellent description of the new combined inclusive HERA data at low values of x (<0.01) and at the same time determines the unintegrated gluon density inside the proton, for squared transverse momenta of the gluon less than 100 GeV2. The phases of this amplitude are sensitive to the non-perturbative gluonic dynamics and could be sensitive to the presence of Beyond-the-Standard-Model particles at very high energies.
Similar content being viewed by others
References
F.D. Aaron et al. (H1 and ZEUS Collaborations), J. High Energy Phys. 1001, 109 (2010)
I.I. Balitsky, L.N. Lipatov, Sov. J. Nucl. Phys. 28, 822 (1978)
E.A. Kuraev, L.N. Lipatov, V.S. Fadin, Sov. Phys. JETP 44, 443 (1976)
V.S. Fadin, E.A. Kuraev, L.N. Lipatov, Phys. Lett. B 60, 50 (1975)
V.S. Fadin, L.N. Lipatov, Phys. Lett. B 429, 127 (1998)
M. Ciafaloni, G. Camici, Phys. Lett. B 430, 349 (1998)
G.P. Salam, J. High Energy Phys. 9807, 019 (1998)
J. Ellis, H. Kowalski, D.A. Ross, Phys. Lett. B 668, 51 (2008)
L.N. Lipatov, Sov. Phys. JETP 63, 904 (1986)
L.V. Gribov, E.M. Levin, M.G. Ryskin, Phys. Rep. 100, 1 (1983)
E. Levin, Nucl. Phys. B 545, 481 (1999)
V.N. Gribov, L.N. Lipatov, Sov. J. Nucl. Phys. 15, 438 (1972)
L.N. Lipatov, Sov. J. Nucl. Phys. 20, 94 (1975)
G. Altarelli, G. Parisi, Nucl. Phys. B 126, 298 (1977)
Y.L. Dokshitzer, Sov. Phys. JETP 46, 641 (1977)
J. Kwiecinski, A.D. Martin, A.M. Stasto, Phys. Rev. D 56, 3991 (1997)
Y.V. Kovchegov, H. Weigert, Nucl. Phys. A 784, 188 (2007)
E. Levin, Nucl. Phys. B 453, 303 (1995)
S.J. Brodsky, V.S. Fadin, V.T. Kim, L.N. Lipatov, G.B. Pivovarov, JETP Lett. 76, 249 (2002)
R.S. Thorne, A.D. Martin, W.J. Stirling, G. Watt, arXiv:1006.2753 [hep-ph]
C. Adloff et al. (H1 Collaboration), Eur. Phys. J. C 21, 33 (2001)
S. Chekanov et al. (ZEUS Collaboration), Eur. Phys. J. C 21, 443 (2001)
A.V. Kotikov, L.N. Lipatov, Nucl. Phys. B 582, 19 (2000)
A.V. Kotikov, L.N. Lipatov, Nucl. Phys. B 661, 19 (2003)
A.D. Martin, W.J. Stirling, R.S. Thorne, G. Watt, Eur. Phys. J. C 63, 189 (2009)
C.D. White, R.S. Thorne, Phys. Rev. D 75, 034005 (2007)
J.R. Forshaw, D.A. Ross, Quantum Chromodynamics and the Pomeron. Cambridge Lect. Notes Phys., vol. 9 (1997), 1
S. Catani, F. Hautmann, Nucl. Phys. B 427, 475 (1994)
M. Ciafaloni, D. Colferai, G.P. Salam, A.M. Stasto, Phys. Lett. B 635, 320 (2006)
S. Catani, M. Ciafaloni, F. Hautmann, Phys. Lett. B 307, 147 (1993)
P. Zerwas, High-energy physics: Telescoping the Planck scale. Farewell Colloquium for Rolf-Dieter Heuer, 5 December 2008. http://heuer-colloquium.desy.de/e9/
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kowalski, H., Lipatov, L.N., Ross, D.A. et al. Using HERA data to determine the infrared behaviour of the BFKL amplitude. Eur. Phys. J. C 70, 983–998 (2010). https://doi.org/10.1140/epjc/s10052-010-1500-6
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epjc/s10052-010-1500-6