Longitudinal Flow Decorrelations in Xe+Xe Collisions at sqrt[s_{NN}]=5.44 TeV with the ATLAS Detector
Articolo
Data di Pubblicazione:
2021
Abstract:
The first measurement of longitudinal decorrelations of harmonic flow amplitudes v(n) for n = 2-4 in Xe + Xe collisions at root s(NN) = 5.44 TeV is obtained using 3 mu b(-1) of data with the ATLAS detector at the LHC. The decorrelation signal for v(3) and v(4) is found to be nearly independent of collision centrality and transverse momentum (p(T)) requirements on fmal-state particles, but for v(2) a strong centrality and p(T) dependence is seen. When compared with the results from Pb + Pb collisions at. root s(NN) = 5.02 TcV, the longitudinal decorrelation signal in midcentral Xe + Xe collisions is found to be larger for v(2), but smaller for v(3). Current hydrodynamic models reproduce the ratios of the v(n) measured in Xe + Xe collisions to those in Pb + Pb collisions but fail to describe the magnitudes and trends of the ratios of longitudinal flow decorrelations between Xe + Xe and Pb + Pb. The results on the system-size dependence provide new insights and an important lever arm to separate effects of the longitudinal structure of the initial state from other early and late time effects in heavy-ion collisions.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Particle physics. High energy physics
Elenco autori:
Aad, G; Abbott, B; Abbott, D C; Abed Abud, A; Abeling, K; Abhayasinghe, D K; Abidi, S H; Abouzeid, O S; Abraham, N L; Abramowicz, H; Abreu, H; Abulaiti, Y; Acharya, B S; Achkar, B; Adachi, S; Adam, L; Adam Bourdarios, C; Adamczyk, L; Adamek, L; Adelman, J; Adersberger, M; Adiguzel, A; Adorni, S; Adye, T; Affolder, A A; Afik, Y; Agapopoulou, C; Agaras, M N; Aggarwal, A; Agheorghiesei, C; Aguilar-Saavedra, J A; Ahmadov, F; Ahmed, W S; Ai, X; Aielli, G; Akatsuka, S; Åkesson, T P A; Akilli, E; Akimov, A V; Al Khoury, K; Alberghi, G L; Albert, J; Alconada Verzini, M J; Alderweireldt, S; Aleksa, M; Aleksandrov, I N; Alexa, C; Alexopoulos, T; Alfonsi, A; Alfonsi, F; Alhroob, M; Ali, B; Aliev, M; Alimonti, G; Allaire, C; Allbrooke, B M M; Allen, B W; Allport, P P; Aloisio, A; Alonso, F; Alpigiani, C; Alshehri, A A; Alunno Camelia, E; Alvarez Estevez, M; Alviggi, M G; Amaral Coutinho, Y; Ambler, A; Ambroz, L; Amelung, C; Amidei, D; Amor Dos Santos, S P; Amoroso, S; Amrouche, C S; An, F; Anastopoulos, C; Andari, N; Andeen, T; Anders, C F; Anders, J K; Andrean, S Y; Andreazza, A; Andrei, V; Anelli, C R; Angelidakis, S; Angerami, A; Anisenkov, A V; Annovi, A; Antel, C; Anthony, M T; Antipov, E; Antonelli, M; Antrim, D J A; Anulli, F; Aoki, M; Aparisi Pozo, J A; Aparo, M A; Aperio Bella, L; Araque, J P; Araujo Ferraz, V; Araujo Pereira, R; Arcangeletti, C; Arce, A T H; Arduh, F A; Arguin, J-F; Argyropoulos, S; Arling, J-H; Armbruster, A J; Armstrong, A; Arnaez, O; Arnold, H; Arrubarrena Tame, Z P; Artoni, G; Artz, S; Asai, S; Asawatavonvanich, T; Asbah, N; Asimakopoulou, E M; Asquith, L; Assahsah, J; Assamagan, K; Astalos, R; Atkin, R J; Atkinson, M; Atlay, N B; Atmani, H; Augsten, K; Avolio, G; Ayoub, M K; Azuelos, G; Bachacou, H; Bachas, K; Backes, M; Backman, F; Bagnaia, P; Bahmani, M; Bahrasemani, H; Bailey, A J; Bailey, V R; Baines, J T; Bakalis, C; Baker, O K; Bakker, P J; Bakshi Gupta, D; Balaji, S; Baldin, E M; Balek, P; Balli, F; Balunas, W K; Balz, J; Banas, E; Bandieramonte, M; Bandyopadhyay, A; Banerjee, Sw; Barak, L; Barbe, W M; Barberio, E L; Barberis, D; Barbero, M; Barbour, G; Barillari, T; Barisits, M-S; Barkeloo, J; Barklow, T; Barnea, R; Barnett, B M; Barnett, R M; Barnovska-Blenessy, Z; Baroncelli, A; Barone, G; Barr, A J; Barranco Navarro, L; Barreiro, F; Barreiro Guimarães da Costa, J; Barsov, S; Bartels, F; Bartoldus, R; Bartolini, G; Barton, A E; Bartos, P; Basalaev, A; Basan, A; Bassalat, A; Basso, M J; Bates, R L; Batlamous, S; Batley, J R; Batool, B; Battaglia, M; Bauce, M; Bauer, F; Bauer, K T; Bawa, H S; Beacham, J B; Beau, T; Beauchemin, P H; Becherer, F; Bechtle, P; Beck, H C; Beck, H P; Becker, K; Becot, C; Beddall, A; Beddall, A J; Bednyakov, V A; Bedognetti, M; Bee, C P; Beermann, T A; Begalli, M; Begel, M; Behera, A; Behr, J K; Beisiegel, F; Bell, A S; Bella, G; Bellagamba, L; Bellerive, A; Bellos, P; Beloborodov, K; Belotskiy, K; Belyaev, N L; Benchekroun, D; Benekos, N; Benhammou, Y; Benjamin, D P; Benoit, M; Bensinger, J R; Bentvelsen, S; Beresford, L; Beretta, M; Berge, D; Bergeaas Kuutmann, E; Berger, N; Bergmann, B; Bergsten, L J; Beringer, J; Berlendis, S; Bernardi, G; Bernius, C; Bernlochner, F U; Berry, T; Berta, P; Bertella, C; Bertram, I A; Bessidskaia Bylund, O; Besson, N; Bethani, A; Bethke, S; Betti, A; Bevan, A J; Beyer, J; Bhattacharya, D S; Bhattarai, P; Bi, R; Bianchi, R M; Biebel, O; Biedermann, D; Bielski, R; Bierwagen, K; Biesuz, N V; Biglietti, M; Billoud, T R V; Bindi, M; Bingul, A; Bini, C; Biondi, S; Birman, M; Bisanz, T; Biswal, J P; Biswas, D; Bitadze, A; Bittrich, C; Bjørke, K; Blazek, T; Bloch, I; Blocker, C; Blue, A; Blumenschein, U; Bobbink, G J; Bobrovnikov, V S; Bocchetta, S S; Bocci, A; Bogavac, D; Bogdanchikov, A G; Bohm, C; Boisvert, V; Bokan, P; Bold, T; Bolz, A E; Bomben, M; Bona, M; Bonilla, J S; Boonekamp, M; Booth, C D; Borecka-Bielska, H M; Borgna, L S; Borisov, A; Borissov, G; Bortfeldt, J; Bortoletto, D; Boscheri
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