Compact Muon Solenoid
LHC, CERN
Visit us: CMS Public Website, CMS Physics ;
Contact us: CMS Publications Committee
| CMS-PAS-EXO-19-006 | ||
| Search for fractionally charged particles in pp collisions at $ \sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| 29 November 2022 | ||
| Abstract: Every known charged particle has an electric charge that is a multiple of 1/3e. In the absence of a mechanism to explain this quantization, particles with other charges may exist as well. In particular, only weak constraints have been set on the existence of free-propagating particles with charge below 1e and mass accessible at the LHC. A search is presented for fractionally charged particles using energy loss in the tracking detector as a key variable to suppress backgrounds. Using a data set corresponding to an integrated luminosity of 138 fb$^{-1}$ of proton-proton collisions collected at a center-of-mass energy of 13 TeV by the CMS experiment, masses up to 636 GeV and charges as low as 1/2e are excluded at 95% confidence level. | ||
|
Links:
CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Submitted to PRL. The superseded preliminary plots can be found here. |
||
|
|
Compact Muon Solenoid LHC, CERN |
|
|
|
|
|
|