Precision measurements with multi-TeV energy jets
23rd August 2016 | By
The strong force is one of the four fundamental interactions of Nature. It governs the interactions between quarks and gluons, and is thus responsible for the stability of ordinary matter. In the proton-proton collisions at the Large Hadron Collider, the strong force is seen in the production of collimated sprays of mesons and baryons, known as hadron jets.
The ATLAS Collaboration has released the measurement of the inclusive jet production cross sections at the new 13 TeV energy frontier. This measurement was made with an accuracy of a few percent, thanks to the novel jet energy calibration techniques used and the large sample of recorded events with jets in the final state.
This new measurement allows ATLAS physicists to probe the structure of the proton at distances ten thousand times smaller than its radius, providing new information on the proton content. It also probes the highest transverse momentum scales where new forces may reveal themselves.
The results are in very good agreement with theoretical prediction and set the scene for searches for new effects beyond the Standard Model.
- Measurement of inclusive-jet cross-sections in proton–proton collisions at √s = 13 TeV centre-of-mass energy with the ATLAS detector (ATLAS-CONF-2016-092): https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2016-092/
- Find all ATLAS 13 TeV results for 2016 summer conferences: https://twiki.cern.ch/twiki/bin/view/AtlasPublic/Summer2016-13TeV