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arXiv · 0804.0455

Deep-Elastic pp Scattering at LHC from Low-x Gluons

M. M. Islam·J. Kaspar·R. J. Luddy
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Abstract

Deep-elastic pp scattering at c.m. energy 14 TeV at LHC in the momentum transfer range 4 GeV*2 < |t| < 10 GeV*2 is planned to be measured by the TOTEM group. We study this process in a model where the deep-elastic scattering is due to a single hard collision of a valence quark from one proton with a valence quark from the other proton. The hard collision originates from the low-x gluon cloud around one valence quark interacting with that of the other. The low-x gluon cloud can be identified as color glass condensate and has size ~0.3 F. Our prediction is that pp differential cross section in the large |t| region decreases smoothly as momentum transfer increases. This is in contrast to the prediction of pp differential cross section with visible oscillations and smaller cross sections by a large number of other models.

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M. M. Islam, J. Kaspar, R. J. Luddy. 2009-04-13. Deep-Elastic pp Scattering at LHC from Low-x Gluons. https://doi.org/10.1142/s0217732309030266

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