Title
Measurement of the diffractive longitudinal structure function <tex>$F_{L}^{D}$</tex> at HERA Measurement of the diffractive longitudinal structure function <tex>$F_{L}^{D}$</tex> at HERA
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Berlin ,
Subject
Physics
Source (journal)
European physical journal : C : particles and fields. - Berlin
Volume/pages
71(2011) :12 , p. 1836,1-1836,21
ISSN
1434-6044
ISI
000298347800024
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
First measurements are presented of the diffractive cross section σ ep→eXY at centre-of-mass energies s of 225 and 252GeV, together with a precise new measurement at s of 319GeV , using data taken with the H1 detector in the years 2006 and 2007. Together with previous H1 data at s of 301GeV , the measurements are used to extract the diffractive longitudinal structure function FLD in the range of photon virtualities 40Q2440GeV2 and fractional proton longitudinal momentum loss 5×10−4≤x &#8473;≤3×10−3. The measured FLD is compared with leading twist predictions based on diffractive parton densities extracted in NLO QCD fits to previous measurements of diffractive Deep-Inelastic Scattering and with a model which additionally includes a higher twist contribution derived from a colour dipole approach. The ratio of the diffractive cross section induced by longitudinally polarised photons to that for transversely polarised photons is extracted and compared with the analogous quantity for inclusive Deep-Inelastic Scattering.
E-info
https://repository.uantwerpen.be/docman/iruaauth/aa469f/64884014c6b.pdf
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000298347800024&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000298347800024&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000298347800024&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
Handle