pp elastic scattering at LHC in near forward direction

pp elastic scattering at LHC in near forward direction

We predict pp elastic differential cross section at LHC at the c.m. energy s=14 TeV and momentum transfer range |t|=0–10 GeV2, which is planned to be measured by the TOTEM group. The field theory model underlying our phenomenological investigation describes the nucleon as a composite object with an...

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Bibliographic Details
Published in:Physics letters. B Vol. 605; no. 1-2; pp. 115 - 122
Main Authors: Islam, M.M., Luddy, R.J., Prokudin, A.V.
Format: Journal Article
Language:English
Published: Elsevier B.V 06-01-2005
Subjects:
Hard pomeron
LHC/TOTEM
Nucleon structure
pp scattering
Hard pomeron
pp scattering
LHC/TOTEM
Nucleon structure
14.20.Dh
12.39.-x
13.85.Dz
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Summary:We predict pp elastic differential cross section at LHC at the c.m. energy s=14 TeV and momentum transfer range |t|=0–10 GeV2, which is planned to be measured by the TOTEM group. The field theory model underlying our phenomenological investigation describes the nucleon as a composite object with an outer cloud of quark–antiquark condensate, an inner core of topological baryonic charge, and a still smaller quark-bag of valence quarks. The model satisfactorily describes the asymptotic behavior of σtot(s) and ρ(s) as well as the measured p¯p elastic dσ/dt at s=546 GeV, 630 GeV, and 1.8 TeV. The large |t| elastic amplitude of the model incorporates the BFKL pomeron in next to leading order approximation, the perturbative dimensional counting behavior, and the confinement of valence quarks in a small region within the nucleon.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2004.11.006