Typ

INT-Note

Gebiet

ATLAS

Autor

S. Burdin, A. Firan, P. Jackson, E. Klinkby, R. Mackeprang, C. Marino, P. Mermod, W. Mills, D. Milstead, H. Ogren, C. Ohm, W. Taylor, T. Petersen, S. Zimmermann

Titel

Search for exotic highly charged particles with ATLAS

Datum

2010-08

Reportnummer

ATL-COM-PHYS-2010-662

Kurzfassung

A search for long-lived highly ionizing particles is performed using the transition radiation tracker (TRT) and the liquid argon (LAr) electromagnetic barrel (EMB) calorimeter of ATLAS, in 0.244 pb-1 of 7 TeV proton-proton collision data. Electron-like objects are identified and the backgrounds are rejected entirely by applying cuts on the fraction of TRT high threshold hits and the cluster shape in the EMB. New production cross section upper limits are obtained for electrically charged objects in the range 6-17e in the mass range 200-1000 GeV.