Ioffe times in DIS from a dipole model fit

• Verfasst von: Ewerz, Carlo [VerfasserIn]
• Verfasst von: Manteuffel, Andreas von [VerfasserIn]
• Verfasst von: Nachtmann, Otto [VerfasserIn]
• Titel: Ioffe times in DIS from a dipole model fit
• Verf.angabe: Carlo Ewerz, Andreas von Manteuffel and Otto Nachtmann
• E-Jahr: 2010
• Jahr: 19 March 2010
• Umfang: 23 S.
• Fussnoten: Gesehen am 22.11.2017
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2010
• Band/Heft Quelle: (2010), 3, Artikel-ID 102, Seite 1-23
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP03(2010)102
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1565628314

Abstract

We present a study of Ioffe times in deep inelastic electron-proton scattering. We deduce ‘experimental’ Ioffe-time distributions from the small-x HERA data as described by a particular colour-dipole-model fit. We show distributions for three representative γ*p c.m. energies W and various values of the photon virtuality Q2. These distributions are rather broad for transversely and very narrow for longitudinally polarised virtual photons. The Ioffe times for W = 150 GeV, for example, range from around 103 fm for Q2 = 1 GeV2 to around 10 fm for Q2 = 100 GeV2. Based on our results we discuss consequences for the limitations of applicability of the dipole picture.