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Reports Year : 1996

Structure function measurement at HERA

Abstract

Preliminary results on a measurement of the proton structure function F_2 are reported for momentum transfers squared Q^2 between 1.5~GeV^2 and 5000 GeV^2 and for Bjorken x between 5.10^{-5} and 0.32 using data collected by the HERA experiments H1 and ZEUS in 1994. F_2 increases significantly with decreasing x, even in the lowest reachable Q^2 region. The data are well described by a Next to Leading Order QCD fit, and support within the present precision that the rise at low x within this Q^2 range is generated "radiatively" via the DGLAP evolution equations. Prospects for future structure function measurements at HERA are briefly mentioned.

Dates and versions

in2p3-00013311 , version 1 (15-11-1999)

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Cite

G. Bernardi. Structure function measurement at HERA. 1996. ⟨in2p3-00013311⟩
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