Search for Fractionally Charged Particles in Proton-Proton Collisions at (Formula presented)

  • Hayrapetyan, A.
  • Tumasyan, A.
  • Adam, W.
  • Andrejkovic, J.W.
  • Bergauer, T.
  • ... Kim, T.J.
  • 외 1,178명
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초록

A search is presented for fractionally charged particles with charges below 1e, using their small energy loss in the tracking detector as a key variable to observe a signal. The analyzed dataset corresponds to an integrated luminosity of 138 fb(-1) of proton-proton collisions collected at root s = 13 TeV in 2016-2018 at the CERN LHC. This is the first search at the LHC for new particles with a charge between e/3 and 0.9e, including an extension of previous results at a charge of 2e/3. Masses up to 640 GeV and charges as low as e/3 are excluded at 95% confidence level. These are the most stringent limits to date for the considered Drell-Yan-like production mode.

키워드

Electron reflectionMetal ionsNegative ionsPhotoelectronsPositive ions
제목
Search for Fractionally Charged Particles in Proton-Proton Collisions at (Formula presented)
저자
Hayrapetyan, A.Tumasyan, A.Adam, W.Andrejkovic, J.W.Bergauer, T.Asilar, E.Kim, D.Kim, T.J.Merlin, J.A.Park, J.Chatterjee, S.Damanakis, K.Dragicevic, M.Del Valle, A. 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DOI
10.1103/PhysRevLett.134.131802
발행일
2025-04
유형
Article
저널명
Physical Review Letters
134
13
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