Physics at the LHC with tagged forward protons

by Michael Pitt

Cern

at Particles and Fields Seminar

Mon, 20 Apr 2020, 14:00
Zoom only

Abstract

Most proton-proton collisions recorded at the LHC are hard scattering events involving high pT particles in the final state. In these processes, recoiling gluons or quarks will cause the protons to dissociate (break apart). Rarely, in hard diffractive interactions, protons emerge intact due to the exchange of colourless particles (photon for electromagnetic or pomeron for strong interactions). The intact protons that lose a fraction of their longitudinal momentum are deflected from the proton bunch by the LHC magnets as they progress along the beam pipe. At ~200 m from the interaction point (ATLAS or CMS experiments), forward detectors are installed close to the beam pipe to measure intact protons with unprecedented resolution. These detectors equipped with particle trackers and timing detectors were brought online during the nominal LHC runs in 2017 and 2016 in ATLAS and CMS experiments, respectively. Such processes can probe the standard model predictions from a different perspective and serve as a search tool for new physics. During the seminar we will discuss new research opportunities to became available with tagged forward protons using the LHC data.

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Created on 16-04-2020 by Citron, Zvi (zhcitron)
Updaded on 16-04-2020 by Citron, Zvi (zhcitron)