Minijet transverse-energy production in the next-to-leading order in hadron and nuclear collisions
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-order (NLO) in QCD at RHIC and LHC energies. The NLO transverse-energy production in pp collision cross sections is larger than th...
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Veröffentlicht in: | The European physical journal. C, Particles and fields Particles and fields, 1999-12, Vol.11 (3), p.495-499 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | 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-order (NLO) in QCD at RHIC and LHC energies. The NLO transverse-energy production in pp collision cross sections is larger than that in the leading-order (LO) ones by the factors of \(K_{\rm RHIC} \sim 1.9\) and \(K_{\rm LHC} \sim 2.1\) at RHIC and LHC energies, respectively. These results were then used to calculate the 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. |
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ISSN: | 1434-6044 1434-6052 |
DOI: | 10.1007/s100529900127 |