Search for fractionally charged particles in proton-proton collisions at V¯s=13 TeV

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URI: https://hdl.handle.net/10902/38459
ISSN: 0031-9007
ISSN: 1079-7114
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Autoría
Bhowmik, Sandeep; Blanco Fernández, SergioAutoridad Unican; Brochero Cifuentes, Javier AndrésAutoridad Unican; Cabrillo Bartolomé, José IbánAutoridad Unican; Calderón Tazón, AliciaAutoridad Unican; Duarte Campderros, JorgeAutoridad Unican; Fernández García, MarcosAutoridad Unican; Fernández Madrazo, CeliaAutoridad Unican; Gómez Gramuglio, GervasioAutoridad Unican; Lasaosa García, Clara; Martínez Rivero, Celso; Martínez Ruiz del Árbol, PabloAutoridad Unican; Matorras Weinig, FranciscoAutoridad Unican; Matorras Cuevas, PabloAutoridad Unican; Navarrete Ramos, EfrénAutoridad Unican; Piedra Gómez, JonatanAutoridad Unican; Prieëls, Cedric; Scodellaro, LucaAutoridad Unican; Vila Álvarez, IvánAutoridad Unican; [et al.]
Fecha
2025-04-02
Derechos
Attribution 4.0 International
Publicado en
Physical Review Letters, 2025, 134, 131802
Editorial
American Physical Society
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Resumen/Abstract
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 V¯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.
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