A search is presented for fractionally charged particles with charges below (Formula presented), 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 (Formula presented) of proton-proton collisions collected at (Formula presented) in 2016-2018 at the CERN LHC. This is the first search at the LHC for new particles with a charge between (Formula presented) and (Formula presented), including an extension of previous results at a charge of (Formula presented). Masses up to 640 GeV and charges as low as (Formula presented) are excluded at 95% confidence level. These are the most stringent limits to date for the considered Drell-Yan-like production mode.

Search for fractionally charged particles in proton-proton collisions at Ѵs = 13 TeV / Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J. w., Bergauer, T., Chatterjee, S., Damanakis, K., Dragicevic, M., Escalante Del Valle, A., Hussain, P. s., Jeitler, M., Krammer, N., Lechner, L., Liko, D., Mikulec, I., Schieck, J., Schöfbeck, R., Schwarz, D., Sonawane, M., Templ, S., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 134:13(2025), pp. 1-19. [10.1103/physrevlett.134.131802]

Search for fractionally charged particles in proton-proton collisions at Ѵs = 13 TeV

Cunqueiro Mendez, L.;Del Re, D.;Organtini, G.;Paramatti, R.;Rahatlou, S.;Santanastasio, F.;
2025

Abstract

A search is presented for fractionally charged particles with charges below (Formula presented), 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 (Formula presented) of proton-proton collisions collected at (Formula presented) in 2016-2018 at the CERN LHC. This is the first search at the LHC for new particles with a charge between (Formula presented) and (Formula presented), including an extension of previous results at a charge of (Formula presented). Masses up to 640 GeV and charges as low as (Formula presented) are excluded at 95% confidence level. These are the most stringent limits to date for the considered Drell-Yan-like production mode.
2025
LHC; CMS; fractionally charged particles
01 Pubblicazione su rivista::01a Articolo in rivista
Search for fractionally charged particles in proton-proton collisions at Ѵs = 13 TeV / Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J. w., Bergauer, T., Chatterjee, S., Damanakis, K., Dragicevic, M., Escalante Del Valle, A., Hussain, P. s., Jeitler, M., Krammer, N., Lechner, L., Liko, D., Mikulec, I., Schieck, J., Schöfbeck, R., Schwarz, D., Sonawane, M., Templ, S., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 134:13(2025), pp. 1-19. [10.1103/physrevlett.134.131802]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1773749
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