Search for millicharged particles in proton-proton collisions at s =13 TeV

A. Ball, G. Beauregard, J. Brooke, C. Campagnari, M. Carrigan, M. Citron, J. De La Haye, A. De Roeck, Y. Elskens, R. Escobar Franco, M. Ezeldine, B. Francis, M. Gastal, M. Ghimire, J. Goldstein, F. Golf, J. Guiang, A. Haas, R. Heller, C. S. HillL. Lavezzo, R. Loos, S. Lowette, G. Magill, B. Manley, B. Marsh, D. W. Miller, B. Odegard, F. R. Saab, J. Sahili, R. Schmitz, F. Setti, H. Shakeshaft, D. Stuart, M. Swiatlowski, J. Yoo, H. Zaraket, H. Zheng

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


We report on a search for elementary particles with charges much smaller than the electron charge using a data sample of proton-proton collisions provided by the CERN Large Hadron Collider in 2018, corresponding to an integrated luminosity of 37.5 fb-1 at a center-of-mass energy of 13 TeV. A prototype scintillator-based detector is deployed to conduct the first search at a hadron collider sensitive to particles with charges ≤0.1e. The existence of new particles with masses between 20 and 4700 MeV is excluded at 95% confidence level for charges between 0.006e and 0.3e, depending on their mass. New sensitivity is achieved for masses larger than 700 MeV.

Original languageEnglish
Article number032002
JournalPhysical Review D
Issue number3
Publication statusPublished - 2020 Aug 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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