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

Bhowmik, Sandeep; Blanco Fernández, Sergio; Brochero Cifuentes, Javier Andrés; Cabrillo Bartolomé, José Ibán; Calderón Tazón, Alicia; Duarte Campderros, Jorge; Fernández García, Marcos; Fernández Madrazo, Celia; Gómez Gramuglio, Gervasio; Lasaosa García, Clara; Martínez Rivero, Celso; Martínez Ruiz del Árbol, Pablo; Matorras Weinig, Francisco; Matorras Cuevas, Pablo; Navarrete Ramos, Efrén; Piedra Gómez, Jonatan; Prieëls, Cedric; Scodellaro, Luca; Vila Álvarez, Iván; Vizán García, Jesús Manuel

doi:10.1103/PhysRevLett.134.131802

dc.contributor.author	Bhowmik, Sandeep
dc.contributor.author	Blanco Fernández, Sergio
dc.contributor.author	Brochero Cifuentes, Javier Andrés
dc.contributor.author	Cabrillo Bartolomé, José Ibán
dc.contributor.author	Calderón Tazón, Alicia
dc.contributor.author	Duarte Campderros, Jorge
dc.contributor.author	Fernández García, Marcos
dc.contributor.author	Fernández Madrazo, Celia
dc.contributor.author	Gómez Gramuglio, Gervasio
dc.contributor.author	Lasaosa García, Clara
dc.contributor.author	Martínez Rivero, Celso
dc.contributor.author	Martínez Ruiz del Árbol, Pablo
dc.contributor.author	Matorras Weinig, Francisco
dc.contributor.author	Matorras Cuevas, Pablo
dc.contributor.author	Navarrete Ramos, Efrén
dc.contributor.author	Piedra Gómez, Jonatan
dc.contributor.author	Prieëls, Cedric
dc.contributor.author	Scodellaro, Luca
dc.contributor.author	Vila Álvarez, Iván
dc.contributor.author	Vizán García, Jesús Manuel
dc.contributor.other	Universidad de Cantabria	es_ES
dc.date.accessioned	2025-12-05T17:02:21Z
dc.date.available	2025-12-05T17:02:21Z
dc.date.issued	2025-04-02
dc.identifier.issn	0031-9007
dc.identifier.issn	1079-7114
dc.identifier.uri	https://hdl.handle.net/10902/38459
dc.description.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.	es_ES
dc.description.sponsorship	We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid and other centers for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC, the CMS detector, and the supporting computing infrastructure provided by the following funding agencies: SC (Armenia), BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES and BNSF (Bulgaria); CERN; CAS, MoST, and NSFC (China); MINCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); ERC PRG, RVTT3 and TK202 (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); SRNSF (Georgia); BMBF, DFG, and HGF (Germany); GSRI (Greece); NKFIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); MES (Latvia); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MES and NSC (Poland); FCT (Portugal); MESTD (Serbia); MCIN/AEI and PCTI (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); MHESI and NSTDA (Thailand); TUBITAK and TENMAK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).	es_ES
dc.format.extent	19 p.	es_ES
dc.language.iso	eng	es_ES
dc.publisher	American Physical Society	es_ES
dc.rights	Attribution 4.0 International	es_ES
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	*
dc.source	Physical Review Letters, 2025, 134, 131802	es_ES
dc.title	Search for fractionally charged particles in proton-proton collisions at V¯s=13 TeV	es_ES
dc.type	info:eu-repo/semantics/article	es_ES
dc.relation.publisherVersion	https://doi.org/10.1103/PhysRevLett.134.131802	es_ES
dc.rights.accessRights	openAccess	es_ES
dc.identifier.DOI	10.1103/PhysRevLett.134.131802
dc.type.version	publishedVersion	es_ES