- Main
Measurement of the azimuthal anisotropy of charged-particle production in Xe+Xe collisions at sNN =5.44 TeV with the ATLAS detector
- Author(s): Aad, G
- Abbott, B
- Abbott, DC
- Abed Abud, A
- Abeling, K
- Abhayasinghe, DK
- Abidi, SH
- Abouzeid, OS
- Abraham, NL
- Abramowicz, H
- Abreu, H
- Abulaiti, Y
- Acharya, BS
- Achkar, B
- Adachi, S
- Adam, L
- Adam Bourdarios, C
- Adamczyk, L
- Adamek, L
- Adelman, J
- Adersberger, M
- Adiguzel, A
- Adorni, S
- Adye, T
- Affolder, AA
- Afik, Y
- Agapopoulou, C
- Agaras, MN
- Aggarwal, A
- Agheorghiesei, C
- Aguilar-Saavedra, JA
- Ahmadov, F
- Ahmed, WS
- Ai, X
- Aielli, G
- Akatsuka, S
- Åkesson, TPA
- Akilli, E
- Akimov, AV
- Al Khoury, K
- Alberghi, GL
- Albert, J
- Alconada Verzini, MJ
- Alderweireldt, S
- Aleksa, M
- Aleksandrov, IN
- Alexa, C
- Alexopoulos, T
- Alfonsi, A
- Alfonsi, F
- Alhroob, M
- Ali, B
- Aliev, M
- Alimonti, G
- Allaire, C
- Allbrooke, BMM
- Allen, BW
- Allport, PP
- Aloisio, A
- Alonso, F
- Alpigiani, C
- Alshehri, AA
- Alvarez Estevez, M
- Alviggi, MG
- Amaral Coutinho, Y
- Ambler, A
- Ambroz, L
- Amelung, C
- Amidei, D
- Amor Dos Santos, SP
- Amoroso, S
- Amrouche, CS
- An, F
- Anastopoulos, C
- Andari, N
- Andeen, T
- Anders, CF
- Anders, JK
- Andreazza, A
- Andrei, V
- Anelli, CR
- Angelidakis, S
- Angerami, A
- Anisenkov, AV
- Annovi, A
- Antel, C
- Anthony, MT
- Antipov, E
- Antonelli, M
- Antrim, DJA
- Anulli, F
- Aoki, M
- Aparisi Pozo, JA
- Aperio Bella, L
- Araque, JP
- Araujo Ferraz, V
- Araujo Pereira, R
- Arcangeletti, C
- Arce, ATH
- Arduh, FA
- et al.
Published Web Location
https://doi.org/10.1103/PhysRevC.101.024906Abstract
This paper describes the measurements of flow harmonics v2-v6 in 3μb-1 of Xe+Xe collisions at sNN=5.44 TeV performed using the ATLAS detector at the Large Hadron Collider (LHC). Measurements of the centrality, multiplicity, and pT dependence of the vn obtained using two-particle correlations and the scalar product technique are presented. The measurements are also performed using a template-fit procedure, which was developed to remove nonflow correlations in small collision systems. This nonflow removal is shown to have a significant influence on the measured vn at high pT, especially in peripheral events. Comparisons of the measured vn with measurements in Pb+Pb collisions and p+Pb collisions at sNN=5.02 TeV are also presented. The vn values in Xe+Xe collisions are observed to be larger than those in Pb+Pb collisions for n=2, 3, and 4 in the most central events. However, with decreasing centrality or increasing harmonic order n, the vn values in Xe+Xe collisions become smaller than those in Pb+Pb collisions. The vn in Xe+Xe and Pb+Pb collisions are also compared as a function of the mean number of participating nucleons, (Npart), and the measured charged-particle multiplicity in the detector. The v3 values in Xe+Xe and Pb+Pb collisions are observed to be similar at the same (Npart) or multiplicity, but the other harmonics are significantly different. The ratios of the measured vn in Xe+Xe and Pb+Pb collisions, as a function of centrality, are also compared to theoretical calculations.