$J/\psi$ production through resolved photon processes at $e^{+} e^{-}$ colliders
| Autor: | Godbole, R. M., Indumathi, D., Kramer, M. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: |
two-photon [exchange]
color: octet 14.40.Lb electron positron: inelastic scattering interaction [photon photon] photon photon: interaction photoproduction [J/psi(3100)] J/psi(3100): photoproduction photon: structure function ddc:530 channel cross section: energy dependence photon: resolved numerical calculations exchange: two-photon octet [color] electron positron: linear collider inelastic scattering [electron positron] resolved [photon] backscatter: laser energy dependence [channel cross section] structure function [photon] 12.38.Bx transverse momentum: spectrum spectrum [transverse momentum] 13.60.Le laser [backscatter] linear collider [electron positron] |
| DOI: | 10.3204/PUBDB-2023-04199 |
| Popis: | 14 pp. (2002). We consider $J/\psi$ photoproduction in $e^+ e^-$ as well as linear photon colliders. We find that the process is dominated by the resolved photon channel. Both the once-resolved and twice-resolved cross-sections are sensitive to (different combinations of) the colour octet matrix elements. Hence, this may be a good testing ground for colour octet contributions in NRQCD. On the other hand, the once-resolved J/psi production cross-section, particularly in a linear photon collider, is sensitive to the gluon content of the photon. Hence these cross-sections can be used to determine the parton distribution functions, especially the gluon distribution, in a photon, if the colour octet matrix elements are known. |
| Databáze: | OpenAIRE |
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