BFKL resummation effects in the γγ total hadronic cross section

We study in the BFKL approach the total hadronic cross section for the collision of two virtual photons for energies in the range of LEP2 and in the range of future linear colliders. The BFKL resummation is done at the next-to-leading order in the BFKL Green’s function; photon impact factors are tak...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2008-11, Vol.58 (1), p.1-7
Main Authors: Caporale, F., Ivanov, D. Y., Papa, A.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Elementary Particles
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
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Summary:We study in the BFKL approach the total hadronic cross section for the collision of two virtual photons for energies in the range of LEP2 and in the range of future linear colliders. The BFKL resummation is done at the next-to-leading order in the BFKL Green’s function; photon impact factors are taken instead at the leading order, but with the inclusion of the subleading terms required by invariance under changes of the renormalization scale and of the BFKL scale  s 0 . We compare our results with previous estimates based on a similar kind of approximation.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-008-0732-1