Search for massive long-lived highly ionising particles with the ATLAS detector at the LHC
Abstract
A search is made for massive highly ionising particles with lifetimes in excess of 100 ns, with the ATLAS experiment at the Large Hadron Collider, using 3.1 pb-1 of pp collision data taken at √{ s} = 7 TeV. The signature of energy loss in the ATLAS inner detector and electromagnetic calorimeter is used. No such particles are found and limits on the production cross section for electric charges 6 e ⩽ | q | ⩽ 17 e and masses 200 GeV ⩽ m ⩽ 1000 GeV are set in the range 1-12 pb for different hypotheses on the production mechanism.
- Publication:
-
Physics Letters B
- Pub Date:
- April 2011
- DOI:
- 10.1016/j.physletb.2011.03.033
- arXiv:
- arXiv:1102.0459
- Bibcode:
- 2011PhLB..698..353A
- Keywords:
-
- High-energy collider experiment;
- Long-lived particle;
- Highly ionising;
- New physics;
- High Energy Physics - Experiment
- E-Print:
- 7 pages plus author list (20 pages total), 5 figures, 6 tables, submitted to Physics Letters B (published version in PLB)