The contribution of off-shell gluons to the longitudinal structure function FL

We present the results for the structure function \(F_{\mathrm{L}}\) for a gluon target having a non-zero transverse momentum square at order \(\alpha_{\mathrm{s}}\). The results of a double convolution (with respect to the Bjorken variable x and the transverse momentum) of the perturbative part and...

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Bibliographic Details
Published inThe European physical journal. C, Particles and fields Vol. 27; no. 2; pp. 219 - 228
Main Authors Kotikov, A.V., Lipatov, A.V., Zotov, N.P.
Format Journal Article
LanguageEnglish
Published Heidelberg Springer Nature B.V 01.03.2003
Subjects
Convolution
Gluons
Longitude
Transverse momentum
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Summary:We present the results for the structure function \(F_{\mathrm{L}}\) for a gluon target having a non-zero transverse momentum square at order \(\alpha_{\mathrm{s}}\). The results of a double convolution (with respect to the Bjorken variable x and the transverse momentum) of the perturbative part and the unintegrated gluon densities are compared with recent experimental data for \(F_{\mathrm{L}}\) at low x values and with the predictions of other approaches.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s2002-01107-1