CERN Accelerating science

ATLAS Slides
Report number	ATL-PHYS-SLIDE-2023-230
Title	Exclusive pion pair production at sqrt(s) = 7 TeV
Author(s)	Trzebinski, Maciej (Polish Academy of Sciences (PL))
Corporate author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Submitted to	11th Large Hadron Collider Physics Conference 2023, Belgrade, Serbia, 22 - 26 May 2023, pp.ATL-PHYS-SLIDE-2023-230
Submitted by	[email protected] on 16 Jun 2023
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	ATLAS ; ALFA ; exclusive ; pion ; cross section ; GenEx ; DIME ; QCD
Abstract	The exclusive pion pair production cross-section in diffractive proton-proton collisions (pp->pp pi+pi-) is measured during special low luminosity LHC runs at sqrt(s) = 7 TeV with dedicated beta*=90 m LHC optics. Pion pairs were detected by the ATLAS Inner Detector whereas the outgoing protons were measured by ALFA (Absolute Luminosity For ATLAS) detector situated on both sides of ATLAS forward region ~240 m from the ATLAS Interaction Point (IP). An overview of the analysis results will be presented as well as a comparison of obtained measurements with available World data and relevant model predictions.