Quick Search:

uzh logo
Browse by:

The deadline for the annual report 2015 is January 31st, 2016

Zurich Open Repository and Archive

Maintenance: Tuesday, 16.2.2015, 06:00-08:00

Maintenance work on various system components of ZORA. During this time there will be a brief unavailability for about 1 hour. Please be patient.

Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-48328

Ewerz, C; von Manteuffel, A; Nachtmann, O (2011). On the energy dependence of the dipole-proton cross section in deep inelastic scattering. Journal of High Energy Physics, (3):62.

Accepted Version
View at publisher
Published Version


We study the dipole picture of high-energy virtual-photon-proton scattering. It is shown that different choices for the energy variable in the dipole cross section used in the literature are not related to each other by simple arguments equating the typical dipole size and the inverse photon virtuality, contrary to what is often stated. We argue that the good quality of fits to structure functions that use Bjorken- x as the energy variable — which is strictly speaking not justified in the dipole picture — can instead be understood as a consequence of the sign of scaling violations that occur for increasing Q 2 at fixed small x. We show that the dipole formula for massless quarks has the structure of a convolution. From this we obtain derivative relations between the structure function F 2 at large and small Q 2 and the dipole-proton cross section at small and large dipole size r, respectively.


4 citations in Web of Science®
3 citations in Scopus®
Google Scholar™



41 downloads since deposited on 18 Feb 2012
4 downloads since 12 months

Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Date:March 2011
Deposited On:18 Feb 2012 14:37
Last Modified:07 Jul 2014 09:35
ISSN:1126-6708 (P) 1029-8479 (E)
Additional Information:The original publication is available at www.springerlink.com
Publisher DOI:10.1007/JHEP03(2011)062
Related URLs:http://arxiv.org/abs/1101.0288

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page