TY  - JOUR
AU  - Abt, I.
AU  - Cooper-Sarkar, A. M.
AU  - Foster, B.
AU  - Myronenko, V.
AU  - Wichmann, K.
AU  - Wing, M.
TI  - Study of HERA ep data at low Q<sup>2</sup> and low x<sub>Bj</sub> and the need for higher-twist corrections to standard perturbative QCD fits
JO  - Physical review / D
VL  - 94
IS  - 3
SN  - 2470-0010
CY  - Woodbury, NY
PB  - Inst.
M1  - PUBDB-2016-04400
M1  - DESY-16-064
M1  - arXiv:1604.02299
SP  - 034032
PY  - 2016
AB  - A detailed comparison of HERA data at low Bjorken-x and low four-momentum-transfer squared, Q<sup>2</sup>, with predictions based on lnQ<sup>2</sup> evolution (DGLAP) in perturbative quantum chromodynamics suggests inadequacies of this framework. The standard DGLAP evolution was augmented by including an additional higher-twist term in the description of the longitudinal structure function, F<sub>L</sub>. This additional term, F<sub>L</sub>A<sub>L</sub><sup>HT</sup>/Q<sup>2</sup>, improves the description of the reduced cross sections significantly. The resulting predictions for F<sub>L</sub> suggest that further corrections are required for Q<sup>2</sup> less than about 2 GeV<sup>2</sup>.
KW  - DESY HERA Stor (INSPIRE)
KW  - electron p: scattering (INSPIRE)
KW  - DGLAP equation (INSPIRE)
KW  - quantum chromodynamics: perturbation theory (INSPIRE)
KW  - quantum chromodynamics: small-x (INSPIRE)
KW  - momentum transfer: low (INSPIRE)
KW  - structure function: longitudinal (INSPIRE)
LB  - PUB:(DE-HGF)29 ; PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000381603800002
DO  - DOI:10.1103/PhysRevD.94.034032
UR  - https://bib-pubdb1.desy.de/record/310726
ER  -