Drell-Yan process at forward rapidity at the LHC
| Autor: | Emilia Lewandowska, Krzysztof Golec-Biernat, Anna Stasto |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics Large Hadron Collider High Energy Physics::Phenomenology FOS: Physical sciences Drell–Yan process Nuclear physics High Energy Physics - Phenomenology Dipole High Energy Physics - Phenomenology (hep-ph) Pair production High Energy Physics::Experiment Invariant mass Rapidity Twist Lepton |
| Zdroj: | Physical Review D. 82 |
| ISSN: | 1550-2368 1550-7998 |
| DOI: | 10.1103/physrevd.82.094010 |
| Popis: | We analyze the Drell-Yan lepton pair production at forward rapidity at the Large Hadron Collider. Using the dipole framework for the computation of the cross section we find a significant suppression in comparison to the collinear factorization formula due to saturation effects in the dipole cross section. We develop a twist expansion in powers of Q_s^2/M^2 where Q_s is the saturation scale and M the invariant mass of the produced lepton pair. For the nominal LHC energy the leading twist description is sufficient down to masses of 6 GeV. Below that value the higher twist terms give a significant contribution. 13 pages, 7 figures |
| Databáze: | OpenAIRE |
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