How to measure the intercept of the BFKL pomeron at HERA

Details How to measure the intercept of the BFKL pomeron at HERA How to measure the intercept of the BFKL pomeron at HERA

1994-03-08

arxiv.org/abs/hep-ph/9403242v1

Phys.Lett.B333:250-254,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures upon the request from kph154@zam001.zam.kfa-juelich.de, Juelich preprint KFA-IKP(Th)-1994-10, 28 Februar

Scientific paper

10.1016/0370-2693(94)91039-1

Determination of the intercept of the BFKL pomeron is one of the pressing issues in the high energy physics. Earlier we have shown that, at the dipole size $r=r_{\Delta}=(0.1-0.2)$f, the dipole cross section $\sigma(x,r)$ which is a solution of the generalized BFKL equation, exhibits a precocious asymptotic behavior $\sigma(x,r)\propto \left({1\over x}\right)^{\Delta_{\Pom}}$. In this paper we discuss how measuring $F_{L}(x,Q^{2})$ and $\partial F_{T}(x,Q^{2})/\partial \log Q^{2}$ at $Q^{2}= (10-40)$GeV$^{2}$ and $Q^{2}=(2-10)$GeV$^{2}$, respectively, one can probe $\sigma(x,r_{\Delta})$ and directly determine the intercept $\Delta_{\Pom}$ of the BFKL pomeron in the HERA experiments.

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