Diffraction and rapidity gap measurements in ATLAS

Ruzicka, P.

doi:10.3204/DESY-PROC-2012-02/72

Contribution to a conference proceedings/Internal Report

PUBDB-2016-00839

Diffraction and rapidity gap measurements in ATLAS

Ruzicka, P. (Corresponding author)

2012
Deutsches Elektronen-Synchrotron, DESY Hamburg

20th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2012, Bonn, Germany, 26 Mar 2012 - 30 Mar 2012 Hamburg : Deutsches Elektronen-Synchrotron, DESY 549-552 (2012) [10.3204/DESY-PROC-2012-02/72]

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2012-02/72

Report No.: ATL-COM-PHYS-2012-566; ATL-PHYS-PROC-2012-079

Abstract: Pseudorapidity gap distributions in Large Hadron Collider proton-proton collisions at sqs\nare studied using a minimum bias data sample of integrated luminosity $7.1 { m mu b^{-1}}$. Cross sections are measured differentially in the size detaf of the larger of the pseudorapidity regions extending to the limits of the ATLAS sensitivity, at $eta = pm 4.9$, in which no final state particles are produced above a transverse momentum threshold ptcut. The measurements span the region $0 < detaf < 8$ for $200 < ptcut < 800$~MeV. The measured data, at large detaf, constrain value of pomeron intercept appropriate to triple Regge models while at small detaf, data test reliability of hadronisation models in describing rapidity and transverse momentum fluctuations in final state particle production.

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