Measurement of differential cross sections for single diffractive dissociation in √s = 8 TeV pp collisions using the ATLAS ALFA spectrometer

G Aad; B Abbott; DC Abbott; O Abdinov; A Abed Abud; K Abeling; DK Abhayasinghe; SH Abidi; OS AbouZeid; NL Abraham; H Abramowicz; H Abreu; Y Abulaiti; BS Acharya; B Achkar; S Adachi; L Adam; C Adam Bourdarios; L Adamczyk; L Adamek; J Adelman; M Adersberger; A Adiguzel; S Adorni; T Adye; AA Affolder; Y Afik; C Agapopoulou; MN Agaras; A Aggarwal; C Agheorghiesei; JA Aguilar-Saavedra; F Ahmadov; WS Ahmed; X Ai; G Aielli; S Akatsuka; TPA Åkesson; E Akilli; AV Akimov; K Al Khoury; GL Alberghi; J Albert; MJ Alconada Verzini; S Alderweireldt; M Aleksa; IN Aleksandrov; C Alexa; D Alexandre; T Alexopoulos; A Alfonsi; 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; M Alvarez Estevez; D Álvarez Piqueras; MG Alviggi; Y Amaral Coutinho; A Ambler; L Ambroz; C Amelung; D Amidei; SP Amor Dos Santos; S Amoroso; CS Amrouche; F An; C Anastopoulos; N Andari; T Andeen; CF Anders; JK Anders; A Andreazza; V Andrei; CR Anelli; S Angelidakis; 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

Journal article

Measurement of differential cross sections for single diffractive dissociation in √s = 8 TeV pp collisions using the ATLAS ALFA spectrometer

G Aad, B Abbott, DC Abbott, O Abdinov, A Abed Abud, K Abeling, DK Abhayasinghe, SH Abidi, OS AbouZeid, NL Abraham, H Abramowicz, H Abreu, Y Abulaiti, BS Acharya, B Achkar, S Adachi, L Adam, C Adam Bourdarios, L Adamczyk, L Adamek Show all

Journal of High Energy Physics (JHEP) | SpringerOpen | Published : 2020

DOI: 10.1007/JHEP02(2020)042

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Abstract

A dedicated sample of Large Hadron Collider proton-proton collision data at centre-of-mass energy s = 8 TeV is used to study inclusive single diffractive dissociation, pp → X p. The intact final-state proton is reconstructed in the ATLAS ALFA forward spectrometer, while charged particles from the dissociated system X are measured in the central detector components. The fiducial range of the measurement is −4.0 < log10ξ < −1.6 and 0.016 < |t| < 0.43 GeV2, where ξ is the proton fractional energy loss and t is the squared four-momentum transfer. The total cross section integrated across the fiducial range is 1.59 ± 0.13 mb. Cross sections are also measured differentially as functions of ξ, t, a..

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University of Melbourne Researchers

Federico Scutti Author

Elisabetta Barberio Author

Jafar Shojaii Author

G. N. Taylor Author

Grants

Awarded by Science and Technology Facilities Council

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 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, CANARIE, CRC and Compute Canada, Canada; COST, ERC, ERDF, Horizon 2020, and Marie Sklodowska-Curie Actions, European Union; Investissements d' Avenir Labex and Idex, ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and GIF, Israel; CERCA Programme Generalitat de Catalunya, Spain; The Royal Society and Leverhulme Trust, United Kingdom.