Search for heavy charged long-lived particles in proton–proton collisions at √s=13TeV using an ionisation measurement with the ATLAS detector

M Aaboud; G Aad; B Abbott; O Abdinov; B Abeloos; DK Abhayasinghe; SH Abidi; OS Abouzeid; NL Abraham; H Abramowicz; H Abreu; Y Abulaiti; BS Acharya; S Adachi; L Adam; L Adamczyk; J Adelman; M Adersberger; A Adiguzel; T Adye; AA Affolder; Y Afik; C Agheorghiesei; JA Aguilar-Saavedra; F Ahmadov; G Aielli; S Akatsuka; TPA Åkesson; E Akilli; AV Akimov; GL Alberghi; J Albert; P Albicocco; MJ Alconada Verzini; S Alderweireldt; M Aleksa; IN Aleksandrov; C Alexa; T Alexopoulos; M Alhroob; B Ali; G Alimonti; J Alison; SP Alkire; C Allaire; BMM Allbrooke; BW Allen; PP Allport; A Aloisio; A Alonso; F Alonso; C Alpigiani; AA Alshehri; MI Alstaty; B Alvarez Gonzalez; D Álvarez Piqueras; MG Alviggi; BT Amadio; Y Amaral Coutinho; A Ambler; L Ambroz; C Amelung; D Amidei; SP Amor Dos Santos; S Amoroso; CS Amrouche; C Anastopoulos; LS Ancu; N Andari; T Andeen; CF Anders; JK Anders; KJ Anderson; A Andreazza; V Andrei; CR Anelli; S Angelidakis; I Angelozzi; A Angerami; AV Anisenkov; A Annovi; C Antel; MT Anthony; M Antonelli; DJA Antrim; F Anulli; M Aoki; JA Aparisi Pozo; L Aperio Bella; G Arabidze; JP Araque; V Araujo Ferraz; R Araujo Pereira; ATH Arce; RE Ardell; FA Arduh; JF Arguin; S Argyropoulos; AJ Armbruster; LJ Armitage

Journal article

Search for heavy charged long-lived particles in proton–proton collisions at √s=13TeV using an ionisation measurement with the ATLAS detector

M Aaboud, G Aad, B Abbott, O Abdinov, B Abeloos, DK Abhayasinghe, SH Abidi, OS Abouzeid, NL Abraham, H Abramowicz, H Abreu, Y Abulaiti, BS Acharya, S Adachi, L Adam, L Adamczyk, J Adelman, M Adersberger, A Adiguzel, T Adye Show all

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics | Published : 2019

DOI: 10.1016/j.physletb.2018.10.055

Abstract

This Letter presents a search for heavy charged long-lived particles produced in proton–proton collisions at s=13TeV at the LHC using a data sample corresponding to an integrated luminosity of 36.1fb−1 collected by the ATLAS experiment in 2015 and 2016. These particles are expected to travel with a velocity significantly below the speed of light, and therefore have a specific ionisation higher than any high-momentum Standard Model particle of unit charge. The pixel subsystem of the ATLAS detector is used in this search to measure the ionisation energy loss of all reconstructed charged particles which traverse the pixel detector. Results are interpreted assuming the pair production of R-hadro..

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University of Melbourne Researchers

Federico Scutti Author

Elisabetta Barberio Author

Phillip Urquijo Author

Grants

Awarded by Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)

Funding Acknowledgements

We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS, CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, Canarie, CRC, Compute Canada, FQRNT, and the Ontario Innovation Trust, Canada; EPLANET, ERC, ERDF, FP7, Horizon 2020 and Marie Sklodowska-Curie Actions, European Union; Investissements d'Avenir Labex and Idex, ANR, Region Auvergne and Fondation Partager le Savoir, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; CERCA Programme Generalitat de Catalunya, Generalitat Valenciana, Spain; the Royal Society and Leverhulme Trust, United Kingdom.