From: "E.Martynov" <firstname.lastname@example.org>
Date ( v1 ): Wed, 27 Sep 2000 13:29:22 GMT (133kb)
Date (revised v2): Mon, 2 Oct 2000 09:32:18 GMT (133kb)
The drastic rise of the proton structure function F_2(x,Q^2) when the Bj\"orken variable x decreases, seen at HERA for a large span of Q^2, negative values for the 4-momentum transfer, may be damped when Q^2 increases beyond several hundreds GeV^2. A new data analysis and a comparison with recent models for the proton structure function is proposed to discuss this phenomenon in terms of the derivative \partial ln F_2(x,Q^2)/\partial ln(1/x).
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