Minijet transverse energy production in the next-to-leading order in hadron and nuclear collisions

Abstract

The transverse energy flow generated by minijets in hadron and nuclear collisions into a given rapidity window in the central region is calculated in the next-to-leading (NLO) order in QCD at RHIC and LHC energies. The NLO transverse energy production in pp collisions cross sections are larger than the LO ones by the factors of K_{RHIC} ~ 1.9 and K_{LHC} ~ 2.1 at RHIC and LHC energies correspondingly. These results were then used to calculate transverse energy spectrum in nuclear collisions in a Glauber geometrical model. We show that accounting for NLO corrections in the elementary pp collisions leads to a substantial broadening of the E_{perp} distribution for the nuclear ones, while its form remains practically unchanged.

12 pages, 4 figures embedded with epsf, some typos corrected

References in corpus (5)

• Non-perturbative computation of gluon mini-jet production in nuclear collisions at very high energies
• Resummation of Threshold Corrections for Single-Particle Inclusive Cross Sections
• Multiplicity Distribution and Mechanisms of the High-Energy Hadron Collisions
• Angular pattern of minijet transverse energy flow in hadron and nuclear collisions
• Parton Cascades in High Energy Nuclear Collisions

Cited by in corpus (5)

• Elliptic Flow from Minijet Production in Heavy Ion Collisions
• Transverse energy from minijets in ultrarelativistic nuclear collisions: a next-to-leading order analysis
• Production of transverse energy from minijets in next-to-leading order perturbative QCD
• Correlation Functions and Cumulants in Elliptic Flow Analysis
• NLO correction to one-particle inclusive production at high energies