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First measurement of the forward rapidity gap distribution in pPb collisions at 8 TeV

by Dmitry E. Sosnov

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Submission summary

Authors (as registered SciPost users): Dmitry Sosnov
Submission information
Preprint Link: scipost_202107_00099v2  (pdf)
Date accepted: March 4, 2022
Date submitted: Feb. 28, 2022, 9:38 p.m.
Submitted by: Dmitry Sosnov
Submitted to: SciPost Physics Proceedings
Proceedings issue: 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021)
Ontological classification
Academic field: Physics
Specialties:
  • High-Energy Physics - Experiment

Abstract

We present the forward rapidity gap spectra from proton-lead collisions for both I\!P-Pb and I\!P-p topologies measured at the CMS at a center-of-mass energy of 8.16 TeV. For the I\!P-Pb topology, the cross-section predicted by EPOS-LHC is a factor of two lower than the data while has reasonable description of the spectrum shape. For the I\!P-p topology, the EPOS-LHC, QGSJET~II and HIJING predictions are significantly lower than the data, what can be explained by a contribution of ultra-peripheral photoproduction events. The obtained data may be of significant input for understanding the high energy limit of QCD and modeling cosmic ray air showers.

Current status:
Published

Editorial decision: For Journal SciPost Physics Proceedings: Publish
(status: Editorial decision fixed and (if required) accepted by authors)

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