# Diffractive Measurements in ATLAS

Source: [Diffractive Measurements in ATLAS](<https://www.sota2.com/research/paper/68fa3a391e209131ce8c90b6>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-27T03:57:30.007Z

Authors: K. Shaw

Published: 2011-12-10T14:23:08.000Z

## Abstract

Measurements made using the ATLAS detector at the LHC at \\surd s = 7 TeV incorporating diffractive processes are presented. A first measurement of the inelastic cross-section using 20 \\mu b-1 of data is given, yielding a result of {\\sigma}inel ({\\xi} \> 5 \\times 10-6) = 60.3 \\pm 2.1 mb, for single (p p \\rightarrow X p) and double (p p \\rightarrow XY) diffractive processes for a kinematic range corresponding to detector acceptance {\\xi} = M2X /s calculated from the invariant mass MX of the heavier dissociation system X. Furthermore a study is made of pseudorapidity gap distributions using 7.1 \\pm 0.2 \\mu b-1 of data collected to tune the diffractive fraction of the inelastic cross-section in Monte Carlo (MC) models, and a measurement is made of the differential cross-section for events with large gaps in pseudorapidity where diffractive processes dominate.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1112.2281>)

[PDF](<https://arxiv.org/pdf/1112.2281.pdf>)