Double-tagged interactions of photons with virtualities Q(2) between 10 GeV2 and 200 GeV2 are studied with the data collected by DELPHI at LEPII from 1998 to 2000, corresponding to an integrated luminosity of 550 pb(-1). The gamma{*}gamma{*} -> mu(+)mu(-) data agree with QED predictions. The cross-section of the reaction gamma{*}gamma{*} -> hadrons is measured and compared to the LO and NLO BFKL calculations.
Study of double-tagged gamma gamma events at LEP II
AMAPANE, Nicola Carlo;MIGLIORE, Ernesto;ROMERO, Alessandra;
2006-01-01
Abstract
Double-tagged interactions of photons with virtualities Q(2) between 10 GeV2 and 200 GeV2 are studied with the data collected by DELPHI at LEPII from 1998 to 2000, corresponding to an integrated luminosity of 550 pb(-1). The gamma{*}gamma{*} -> mu(+)mu(-) data agree with QED predictions. The cross-section of the reaction gamma{*}gamma{*} -> hadrons is measured and compared to the LO and NLO BFKL calculations.
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