Ultra-peripheral Collisions with the ATLAS Detector
Miguel Arratia (for the ATLAS collaboration)
TL;DR
This paper reports the first measurement of ultra-peripheral Pb+Pb collisions at the LHC using the ATLAS detector, focusing on photon-photon scattering producing dimuon pairs, and compares results with theoretical predictions.
Contribution
It presents the first ATLAS measurement of ultra-peripheral collisions and provides data for photon-induced reactions at the LHC.
Findings
Measured dimuon production cross-section as a function of invariant mass and rapidity.
Results are consistent with STARLIGHT 1.1 calculations.
Establishes a foundation for future photon-induced reaction studies.
Abstract
The first ATLAS measurement of ultra-peripheral collisions is described. Dimuon pairs from photon--photon scattering have been measured with data of Pb+Pb collisions at TeV taken with the ATLAS detector at the LHC. The measured cross-section is presented as a function of dimuon invariant mass and rapidity and is well described by STARLIGHT 1.1 calculations. This measurement paves the way for new studies of photon-induced reactions at the LHC.
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