photon-photon and photon-p measurements with forward proton taggers in CMS+TOTEM

Authors

DOI:

https://doi.org/10.23727/CERN-Proceedings-2018-001.125

Keywords:

p, spectrometer, dimuon, mass spectrum, (muon muon-), muon, pair production

Abstract

The CMS+TOTEM Precision Proton Spectrometer operated for the first time in 2016, collecting data during pp collisions at sqrt(s)=13 TeV  at the CERN Large Hadron Collider. Procedures for the detector alignment, optics corrections, and background estimations were developed, and applied to an analysis of the process pp -> p mu+mu-p(*) with dimuon masses larger than 110 GeV. A total of 12 candidate events are observed, corresponding to an excess of >4 sigma over the background prediction. This constitutes the first evidence for this process at such masses, and demonstrates the good performance of CT-PPS

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Published

2018-12-20

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Section

Photon-hadron collisions at hadron colliders