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Elastic and diffractive scattering at the LHC
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abstract
Inspired by the new TOTEM data on elastic $pp$ scattering at 13 TeV, we study the possibility to describe all the diffractive collider data ($\sigma_{\rm tot}, d\sigma_{\rm el}/dt$, $\rho\equiv$Re$A$/Im$A$, \sd) in a wide interval of energy (0.0625 to 13 TeV) in the framework of a two-channel eikonal model. We show that a satisfactory description can be achieved without an odd-signature (Odderon) exchange contribution. We consider the possible role of the QCD Odderon which may improve the description of $\rho$ and discuss the importance of the odd-signature term if the amplitude were to exceed the black disc limit.
Forward citations
Cited by 2 Pith papers
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A new parton model for the soft interactions at high energies: two channel approximation
A two-channel extension of the 'new parton model' fits total and elastic proton cross sections, reproduces only half of single diffraction, and requires an Odderon contribution to describe the measured elastic t-distribution.
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Central exclusive production at the LHC: Remarks by the organisers on an EMMI workshop
A workshop report summarizing talks and organizer conclusions on central exclusive production at the LHC, focusing on odderon searches, glueballs, and the need for forward proton detection.
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