J/ψ production through resolved photon processes at e+e- colliders

Godbole, R. M. ; Indumathi, D. ; Kramer, M. (2002) J/ψ production through resolved photon processes at e+e- colliders Physical Review D, 65 (7). 074003_1-074003_7. ISSN 0556-2821

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Official URL: http://prd.aps.org/abstract/PRD/v65/i7/e074003

Related URL: http://dx.doi.org/10.1103/PhysRevD.65.074003


We consider J/ψ 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 color octet matrix elements. Hence, this may be a good testing ground for color octet contributions in NRQCD. On the other hand, the once-resolved J/ψ 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 color octet matrix elements are known.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:14322
Deposited On:12 Nov 2010 08:15
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