Title




Inclusive measurement of diffractive deepinelastic scattering at HERA
 
Author




 
Institution/Organisation




H1 Collaboration
 
Abstract




The diffractive process ep > eXY, where Y denotes a proton or its low mass excitation with MY < 1.6 GeV, is studied with the H1 experiment at HERA. The analysis is restricted to the phase space region of the photon virtuality 3 <= Q(2) <= 1600 GeV2, the square of the fourmomentum transfer at the proton vertex vertical bar t vertical bar < 1.0 GeV2 and the longitudinal momentum fraction of the incident proton carried by the colourless exchange x(P) < 0.05. Triple differential cross sections are measured as a function of x(P), Q(2) and beta = x/x(P) where x is the Bjorken scaling variable. These measurements are made after selecting diffractive events by demanding a large empty rapidity interval separating the final state hadronic systems X and Y. High statistics measurements covering the data taking periods 19992000 and 20042007 are combined with previously published results in order to provide a single set of diffractive cross sections from the H1 experiment using the large rapidity gap selection method. The combined data represent a factor between three and thirty increase in statistics with respect to the previously published results. The measurements are compared with predictions from NLO QCD calculations based on diffractive parton densities and from a dipole model. The proton vertex factorisation hypothesis is tested. 
 
Language




English
 
Source (journal)




European physical journal : C : particles and fields.  Berlin
 
Publication




Berlin
:
2012
 
ISSN




14346044
14346052
 
Volume/pages




72
:7
(2012)
, 21 p.
 
Article Reference




2074
 
ISI




000307269400021
 
Medium




Eonly publicatie
 
Full text (Publisher's DOI)




 
Full text (open access)




 
