Measurement of the total cross section and $$\rho $$ ρ -parameter from elastic scattering in pp collisions at $$\sqrt{s}=13$$ s = 13 TeV with the ATLAS detector
dc.article.number | 441 | |
dc.catalogador | crc | |
dc.contributor.author | Aad, G. | |
dc.contributor.author | Abbott, B. | |
dc.contributor.author | Abbott, D. C. | |
dc.contributor.author | Abeling, K. | |
dc.contributor.author | Abidi, S. H. | |
dc.contributor.author | Abusleme Hoffman, Ángel Christian | |
dc.contributor.author | Díaz, Marco A. | |
dc.contributor.author | Garay Walls, Francisca | |
dc.contributor.other | ATLAS Collaboration | |
dc.date.accessioned | 2023-05-30T12:53:03Z | |
dc.date.available | 2023-05-30T12:53:03Z | |
dc.date.issued | 2023 | |
dc.date.updated | 2023-05-28T00:04:05Z | |
dc.description.abstract | In a special run of the LHC with β =2.5km, proton–proton elastic-scattering events were recorded at √s=13 TeV with an integrated luminosity of 340 µb−1 using the ALFA subdetector of ATLAS in 2016. The elastic cross section was measured differentially in the Mandelstamt variable in the range from−t =2.5·10−4GeV2 to−t =0.46GeV2 using 6.9 million elastic-scattering candidates. This paper presents measurements of the total cross section σtot, parameters of the nuclear slope, and the ρ-parameter defined as the ratio of the real part to the imaginary part of the elastic-scattering amplitude in the limit t→0. These parameters are determined from a fit to the differential elastic cross section using the optical theorem and different parameterizations of thet-dependence. The results for σtot and ρare σtot(pp→X)=104.7±1.1mb, ρ=0.098±0.011. The uncertain tyinσtot is dominated by the luminosity measurement, and in ρ by imperfect knowledge of the detector alignment and by modelling of the nuclear amplitude. | |
dc.fechaingreso.objetodigital | 2023-05-28 | |
dc.fuente.origen | Autoarchivo | |
dc.identifier.citation | The European Physical Journal C. 2023 May 26;83(5):441 | |
dc.identifier.doi | 10.1140/epjc/s10052-023-11436-8 | |
dc.identifier.eissn | 1434-6052 | |
dc.identifier.uri | https://doi.org/10.1140/epjc/s10052-023-11436-8 | |
dc.identifier.uri | https://repositorio.uc.cl/handle/11534/70496 | |
dc.information.autoruc | Escuela de Ingeniería ; Abusleme Hoffman, Ángel Christian ; 0000-0003-0762-7204 ; 2698 | |
dc.information.autoruc | Instituto de Física ; Díaz, Marco A. ;0000-0003-1258-8684; 104746 | |
dc.information.autoruc | Instituto de Física ; Garay Walls, Francisca ;0000-0002-6670-1104;131813 | |
dc.issue.numero | 5 | |
dc.language.iso | en | |
dc.nota.acceso | Contenido completo | |
dc.pagina.final | 49 | |
dc.pagina.inicio | 1 | |
dc.revista | The European Physical Journal C | |
dc.rights | acceso abierto | |
dc.rights.holder | The Author(s) | |
dc.subject.ddc | 522 | |
dc.subject.dewey | Astronomía | es_ES |
dc.title | Measurement of the total cross section and $$\rho $$ ρ -parameter from elastic scattering in pp collisions at $$\sqrt{s}=13$$ s = 13 TeV with the ATLAS detector | |
dc.type | artículo | |
dc.volumen | 83 | |
sipa.codpersvinculados | 2698 | |
sipa.codpersvinculados | 104746 | |
sipa.codpersvinculados | 131813 |