Hadronic single inclusive k perpendicular distributions inside one jet beyond the modified-leading-log approximation.
The hadronic k( perpendicular) spectrum inside one jet is determined including corrections of relative magnitude [see formula] with respect to the modified-leading-logarithmic approximation (MLLA), at and beyond the limiting spectrum (assuming an infrared cutoff Q(0)=Lambda(QCD) and Q(0) not equalLambda(QCD)). The agreement between our results and preliminary measurements by the CDF Collaboration is impressive, much better than at MLLA, pointing out very small overall nonperturbative contributions.
Arleo
François
F
CERN, PH department, TH division, CH-1211 Geneva 23, Switzerland.
Pérez-Ramos
Redamy
R
Machet
Bruno
B