English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/232415
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Measurement of long-range two-particle azimuthal correlations in Z-boson tagged pp collisions at √s=8 and 13 TeV

AuthorsATLAS Collaboration; Álvarez Piqueras, D. ; Aparisi, Pozo, J.A.; Barranco, Laura; Cabrera, Susana ; Castillo Mª Victoria; Cerda Alberich, L.; Costa, María José ; Escobar, Carlos ; Estrada, Oscar; Ferrer, Antonio ; Fiorini, L. ; Fuster, Juan ; Fullana, Esteban ; García García, Carmen ; García Navarro, José Enrique ; González de la Hoz, Santiago ; Higón, Emilio ; Jimenez Pena, Javier; Lacasta Llácer, Carlos ; Lozano Bahilo, José J.; Madaffari, Daniele; Mamuzic, Judita; Martí García, Salvador ; Melini, Davide; Mitsou, Vasiliki A. ; Bailey, A.J.; Miñano Moya, M.; Rodriguez Bosca, S.; Ruiz Martínez, Arantxa ; Rodriguez Rodriguez, D.; Salt, José ; Santra, A; Soldevila, Urmila ; Sánchez Martínez, Javier ; Valero, Alberto ; Valls Ferrer, Juan Antonio
Issue DateJan-2020
PublisherSpringer
CitationEuropean Physical Journal C 80: 64 (2020)
AbstractResults are presented from the measurement by ATLAS of long-range (| Δ η| > 2) dihadron angular correlations in s=8 and 13 TeV pp collisions containing a Z boson. The analysis is performed using 19.4 fb of s=8 TeV data recorded during Run 1 of the LHC and 36.1 fb of s=13 TeV data recorded during Run 2. Two-particle correlation functions are measured as a function of relative azimuthal angle over the relative pseudorapidity range 2 < | Δ η| < 5 for different intervals of charged-particle multiplicity and transverse momentum. The measurements are corrected for the presence of background charged particles generated by collisions that occur during one passage of two colliding proton bunches in the LHC. Contributions to the two-particle correlation functions from hard processes are removed using a template-fitting procedure. Sinusoidal modulation in the correlation functions is observed and quantified by the second Fourier coefficient of the correlation function, v, which in turn is used to obtain the single-particle anisotropy coefficient v. The v values in the Z-tagged events, integrated over 0.5 < p< 5 GeV, are found to be independent of multiplicity and s, and consistent within uncertainties with previous measurements in inclusive pp collisions. As a function of charged-particle p, the Z-tagged and inclusive v values are consistent within uncertainties for p< 3 GeV.
Publisher version (URL)http://dx.doi.org/10.1140/epjc/s10052-020-7606-6
URIhttp://hdl.handle.net/10261/232415
Identifiersdoi: 10.1140/epjc/s10052-020-7606-6
issn: 1434-6052
Appears in Collections:(IFIC) Artículos
Files in This Item:
File Description SizeFormat 
199_Atlas_Measurement.pdf1,44 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.