Title
Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at √s = 13 TeV
Date Issued
01 May 2021
Access level
open access
Resource Type
journal article
Author(s)
Acharya S.
Adamová D.
Adler A.
Adolfsson J.
Aglieri Rinella G.
Agnello M.
Agrawal N.
Ahammed Z.
Ahmad S.
Ahn S.U.
Akbar Z.
Akindinov A.
Al-Turany M.
Albuquerque D.S.D.
Aleksandrov D.
Alessandro B.
Alfanda H.M.
Alfaro Molina R.
Ali B.
Ali Y.
Alici A.
Alizadehvandchali N.
Alkin A.
Alme J.
Alt T.
Altenkamper L.
Altsybeev I.
Anaam M.N.
Andrei C.
Andreou D.
Andronic A.
Anguelov V.
Antičić T.
Antinori F.
Antonioli P.
Anuj C.
Apadula N.
Aphecetche L.
Appelshäuser H.
Arcelli S.
Arnaldi R.
Arratia M.
Arsene I.C.
Arslandok M.
Augustinus A.
Averbeck R.
Aziz S.
Azmi M.D.
Badalà A.
Baek Y.W.
Bai X.
Bailhache R.
Bala R.
Balbino A.
Baldisseri A.
Ball M.
Banerjee D.
Barbera R.
Barioglio L.
Barlou M.
Barnaföldi G.G.
Barnby L.S.
Barret V.
Bartels C.
Barth K.
Bartsch E.
Baruffaldi F.
Bastid N.
Basu S.
Batigne G.
Batyunya B.
Bauri D.
Bearden I.G.
Beattie C.
Belikov I.
Bell Hechavarria A.D.C.
Bellini F.
Bellwied R.
Belokurova S.
Belyaev V.
Bencedi G.
Beole S.
Bercuci A.
Berdnikov Y.
Berdnikova A.
Berenyi D.
Bergmann L.
Besoiu M.G.
Betev L.
Bhaduri P.P.
Bhasin A.
Bhat I.R.
Bhat M.A.
Bhattacharjee B.
Bhattacharya P.
Bianchi A.
Bianchi L.
Bianchi N.
Bielčík J.
Bose Institute
Publisher(s)
Springer Science and Business Media Deutschland GmbH
Abstract
Two-particle angular correlations are measured in high-multiplicity proton-proton collisions at s = 13 TeV by the ALICE Collaboration. The yields of particle pairs at short-(∆η ∼ 0) and long-range (1.6 < |∆η| < 1.8) in pseudorapidity are extracted on the near-side (∆φ ∼ 0). They are reported as a function of transverse momentum (pT) in the range 1 < pT< 4 GeV/c. Furthermore, the event-scale dependence is studied for the first time by requiring the presence of high-pT leading particles or jets for varying pT thresholds. The results demonstrate that the long-range “ridge” yield, possibly related to the collective behavior of the system, is present in events with high-pT processes as well. The magnitudes of the short- and long-range yields are found to grow with the event scale. The results are compared to EPOS LHC and PYTHIA 8 calculations, with and without string-shoving interactions. It is found that while both models describe the qualitative trends in the data, calculations from EPOS LHC show a better quantitative agreement for the pT dependency, while overestimating the event-scale dependency.
Volume
2021
Issue
5
Language
English
Subjects
Scopus EID
2-s2.0-85107537579
Source
Journal of High Energy Physics
ISSN of the container
10298479
Sources of information:
Directorio de Producción Científica
Scopus