Publikationsansicht

H1 Collaboration (2009)

F. D. Aaron,
C. Alexa,
V. Andreev,
B. Antunovic,
S. Aplin,
A. Asmone,
A. Astvatsatourov,
A. Bacchetta,
S. Backovic,
A. Baghdasaryan,
P. Baranov,
E. Barrelet,
W. Bartel,
M. Beckingham,
K. Begzsuren,
O. Behnke,
A. Belousov,
N. Berger,
J. C. Bizot,
V. Boudry,
I. Bozovic-jelisavcic,
J. Bracinik,
G. Br,
M. Brinkmann,
V. Brisson,
D. Bruncko,
A. Bunyatyan,
G. Buschhorn,
L. Bystritskaya,
V. Cerny,
V. Chekelian,
A. Cholewa,
J. G. Contreras,
J. A. Coughlan,
G. Cozzika,
J. Cvach,
M. Del Degan,
J. Delvax,
A. De Roeck,
C. Diaconu,
V. Dodonov,
A. Dossanov,
A. Dubak,
G. Eckerlin,
V. Efremenko,
S. Egli,
A. Eliseev

Abstract

Abstract A first measurement is reported of the longitudinal proton structure function FL(x, Q2) atthe ep collider HERA. It is based on inclusive deep inelastic e+p scattering cross sectionmeasurements with a positron beam energy of 27.5 GeV and proton beam energies of 920, 575 and 460 GeV. Employing the energy dependence of the cross section, FL is measuredin a range of squared four-momentum transfers 12 < = Q2 < = 90 GeV2 and low Bjorken x 0.00024 < = x < = 0.0036. The FL values agree with higher order QCD calculations based onparton densities obtained using cross section data previously measured at HERA.

Details der Publikation

Download	http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.141.4397
Quelle	http://www-h1.desy.de/psfiles/papers/desy08-053.ps.gz
Mitarbeiter	CiteSeerX
Archiv	CiteSeerX - Scientific Literature Digital Library and Search Engine (United States)
Typ	text
Sprache	Englisch