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Article overview
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Probes of the small x gluon via exclusive J/psi and Upsilon | | S.P. Jones
; A.D. Martin
; M.G. Ryskin
; T. Teubner
; | | Date: |
26 Jul 2013 | | Abstract: | New, more precise data on diffractive J/psi photoproduction and on exclusive
J/psi production in the process pp -> p + J/psi + p at the LHC allow a better
constraint on the low-x gluon distribution in the domain of relatively low
scales Q^2 ~ 2-6 GeV^2. We account for the ’skewed’ effect and for the real
part of the amplitude, as well as for the absorptive corrections in the case of
the exclusive process pp -> p + J/psi + p. The predictions for exclusive J/psi
production at sqrt{s}=8 and 14 TeV and for exclusive Upsilon(1S) production at
7, 8 and 14 TeV are also given. We present results at leading and
next-to-leading order. | | Source: | arXiv, 1307.7099 | | Services: | Forum | Review | PDF | Favorites | |
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