The Transverse Momentum of Partons in Large p(T) Processes
Nov, 197710 pages
Published in:
- Nucl.Phys.B 145 (1978) 189-198
- Published: 1978
Report number:
- DAMTP 77/29
Citations per year
Abstract: (Elsevier)
An approximate method is used to investigate the effects of parton transverse momentum in large p T particle production within the framework of hard scattering models. We derive an approximate expression for the mean bias towards the trigger of each of the two participating partons and find that event one of the partons is biased more than the other, even with a 90° trigger. We treat the transverse momentum of partons and their closely related off-mass-shell behaviour as a perturbation in the equation for the single-particle inclusive cross section, and then expand in a Taylor series. We calculate the first non-zero correction term and find that to this order, the cross section is increased by parton transverse momentum effects by typically a factor of 1.7 for p T = 3 GeV/c with 〈 k T 〉 = 500 MeV/c, or 1.25 for p T = 3 GeV/c with 〈 k T 〉 = 300 MeV/c, and that the correction decreases rapidly with increasing p T .- HADRON HADRON: INCLUSIVE REACTION
- TRANSVERSE MOMENTUM: HIGH
- MODEL: CONSTITUENT INTERCHANGE
- MODEL: PARTON
- TRANSVERSE MOMENTUM: PARTON
- INCLUSIVE REACTION: DIFFERENTIAL CROSS SECTION
- DIFFERENTIAL CROSS SECTION: INCLUSIVE REACTION
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