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Measurement of longitudinal flow decorrelations in Pb+Pb collisions at s NN = 2.76 and 5.02 TeV with the ATLAS detector.

Publication ,  Journal Article
Aaboud, M; Aad, G; Abbott, B; Abdinov, O; Abeloos, B; Abidi, SH; AbouZeid, OS; Abraham, NL; Abramowicz, H; Abreu, H; Abreu, R; Abulaiti, Y ...
Published in: The European physical journal. C, Particles and fields
January 2018

Measurements of longitudinal flow correlations are presented for charged particles in the pseudorapidity range | η | < 2.4 using 7 and 470 μ b - 1 of Pb+Pb collisions at s NN = 2.76 and 5.02 TeV, respectively, recorded by the ATLAS detector at the LHC. It is found that the correlation between the harmonic flow coefficients v n measured in two separated η intervals does not factorise into the product of single-particle coefficients, and this breaking of factorisation, or flow decorrelation, increases linearly with the η separation between the intervals. The flow decorrelation is stronger at 2.76 TeV than at 5.02 TeV. Higher-order moments of the correlations are also measured, and the corresponding linear coefficients for the k th -moment of the v n are found to be proportional to k for v 3 , but not for v 2 . The decorrelation effect is separated into contributions from the magnitude of v n and the event-plane orientation, each as a function of η . These two contributions are found to be comparable. The longitudinal flow correlations are also measured between v n of different order in n. The decorrelations of v 2 and v 3 are found to be independent of each other, while the decorrelations of v 4 and v 5 are found to be driven by the nonlinear contribution from v 2 2 and v 2 v 3 , respectively.

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Published In

The European physical journal. C, Particles and fields

DOI

EISSN

1434-6052

ISSN

1434-6044

Publication Date

January 2018

Volume

78

Issue

2

Start / End Page

142

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

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Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., … Cobal, M. (2018). Measurement of longitudinal flow decorrelations in Pb+Pb collisions at s NN = 2.76 and 5.02 TeV with the ATLAS detector. The European Physical Journal. C, Particles and Fields, 78(2), 142. https://doi.org/10.1140/epjc/s10052-018-5605-7
Aaboud, M., G. Aad, B. Abbott, O. Abdinov, B. Abeloos, S. H. Abidi, O. S. AbouZeid, et al. “Measurement of longitudinal flow decorrelations in Pb+Pb collisions at s NN = 2.76 and 5.02 TeV with the ATLAS detector.The European Physical Journal. C, Particles and Fields 78, no. 2 (January 2018): 142. https://doi.org/10.1140/epjc/s10052-018-5605-7.
Aaboud M, Aad G, Abbott B, Abdinov O, Abeloos B, Abidi SH, et al. Measurement of longitudinal flow decorrelations in Pb+Pb collisions at s NN = 2.76 and 5.02 TeV with the ATLAS detector. The European physical journal C, Particles and fields. 2018 Jan;78(2):142.
Aaboud, M., et al. “Measurement of longitudinal flow decorrelations in Pb+Pb collisions at s NN = 2.76 and 5.02 TeV with the ATLAS detector.The European Physical Journal. C, Particles and Fields, vol. 78, no. 2, Jan. 2018, p. 142. Epmc, doi:10.1140/epjc/s10052-018-5605-7.
Aaboud M, Aad G, Abbott B, Abdinov O, Abeloos B, Abidi SH, AbouZeid OS, Abraham NL, Abramowicz H, Abreu H, Abreu R, Abulaiti Y, Acharya BS, Adachi S, Adamczyk L, Adelman J, Adersberger M, Adye T, Affolder AA, Afik Y, Agatonovic-Jovin T, Agheorghiesei C, Aguilar-Saavedra JA, Ahlen SP, Ahmadov F, Aielli G, Akatsuka S, Akerstedt H, Åkesson TPA, Akilli E, Akimov AV, Alberghi GL, Albert J, Albicocco P, Alconada Verzini MJ, Alderweireldt SC, Aleksa M, Aleksandrov IN, Alexa C, Alexander G, Alexopoulos T, Alhroob M, Ali B, Aliev M, Alimonti G, Alison J, Alkire SP, Allbrooke BMM, Allen BW, Allport PP, Aloisio A, Alonso A, Alonso F, Alpigiani C, Alshehri AA, Alstaty MI, Alvarez Gonzalez B, Álvarez Piqueras D, Alviggi MG, Amadio BT, Amaral Coutinho Y, Amelung C, Amidei D, Amor Dos Santos SP, Amoroso S, Amundsen G, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders JK, Anderson KJ, Andreazza A, Andrei V, Angelidakis S, Angelozzi I, Angerami A, Anisenkov AV, Anjos N, Annovi A, Antel C, 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Battaglia M, Bauce M, Bauer F, Bawa HS, Beacham JB, Beattie MD, Beau T, Beauchemin PH, Bechtle P, Beck HP, Beck HC, Becker K, Becker M, Becot C, Beddall AJ, Beddall A, Bednyakov VA, Bedognetti M, Bee CP, Beermann TA, Begalli M, Begel M, Behr JK, Bell AS, Bella G, Bellagamba L, Bellerive A, Bellomo M, Belotskiy K, Beltramello O, Belyaev NL, Benary O, Benchekroun D, Bender M, Benekos N, Benhammou Y, Benhar Noccioli E, Benitez J, Benjamin DP, Benoit M, Bensinger JR, Bentvelsen S, Beresford L, Beretta M, Berge D, Bergeaas Kuutmann E, Berger N, Bergsten LJ, Beringer J, Berlendis S, Bernard NR, Bernardi G, Bernius C, Bernlochner FU, Berry T, Berta P, Bertella C, Bertoli G, Bertram IA, Bertsche C, Besjes GJ, Bessidskaia Bylund O, Bessner M, Besson N, Bethani A, Bethke S, Betti A, Bevan AJ, Beyer J, Bianchi RM, Biebel O, Biedermann D, Bielski R, Bierwagen K, Biesuz NV, Biglietti M, Billoud TRV, Bilokon H, Bindi M, Bingul A, Bini C, Biondi S, Bisanz T, Bittrich C, Bjergaard DM, Black JE, Black KM, Blair RE, Blazek T, Bloch I, Blocker C, Blue A, Blumenschein U, Blunier S, Bobbink GJ, Bobrovnikov VS, Bocchetta SS, Bocci A, Bock C, Boehler M, Boerner D, Bogavac D, Bogdanchikov AG, Bohm C, Boisvert V, Bokan P, Bold T, Boldyrev AS, Bolz AE, Bomben M, Bona M, Boonekamp M, Borisov A, Borissov G, Bortfeldt J, Bortoletto D, Bortolotto V, Boscherini D, Bosman M, Bossio Sola JD, Boudreau J, Bouhova-Thacker EV, Boumediene D, Bourdarios C, Boutle SK, Boveia A, Boyd J, Boyko IR, Bozson AJ, Bracinik J, Brandt A, Brandt G, Brandt O, Braren F, Bratzler U, Brau B, Brau JE, Breaden Madden WD, Brendlinger K, Brennan AJ, Brenner L, Brenner R, Bressler S, Briglin DL, Bristow TM, Britton D, Britzger D, Brochu FM, Brock I, Brock R, Brooijmans G, Brooks T, Brooks WK, Brosamer J, Brost E, Broughton JH, Bruckman de Renstrom PA, Bruncko D, Bruni A, Bruni G, Bruni LS, Bruno S, Brunt BH, Bruschi M, Bruscino N, Bryant P, Bryngemark L, Buanes T, Buat Q, Buchholz P, Buckley AG, Budagov IA, Buehrer F, Bugge MK, Bulekov O, Bullock D, Burch TJ, Burdin S, Burgard CD, Burger AM, Burghgrave B, Burka K, Burke S, Burmeister I, Burr JTP, Büscher D, Büscher V, Bussey P, Butler JM, Buttar CM, Butterworth JM, Butti P, Buttinger W, Buzatu A, Buzykaev AR, Cabrera Urbán S, Caforio D, Cai H, Cairo VM, Cakir O, Calace N, Calafiura P, Calandri A, Calderini G, Calfayan P, Callea G, Caloba LP, Calvente Lopez S, Calvet D, Calvet S, Calvet TP, Camacho Toro R, Camarda S, Camarri P, Cameron D, Caminal Armadans R, Camincher C, Campana S, Campanelli M, Camplani A, Campoverde A, Canale V, Cano Bret M, Cantero J, Cao T, Capeans Garrido MDM, Caprini I, Caprini M, Capua M, Carbone RM, Cardarelli R, Cardillo F, Carli I, Carli T, Carlino G, Carlson BT, Carminati L, Carney RMD, Caron S, Carquin E, Carrá S, Carrillo-Montoya GD, Casadei D, Casado MP, Casha AF, Casolino M, Casper DW, Castelijn R, Castillo Gimenez V, Castro NF, Catinaccio A, Catmore JR, Cattai A, Caudron J, Cavaliere V, Cavallaro E, Cavalli D, Cavalli-Sforza M, Cavasinni V, Celebi E, Ceradini F, Cerda Alberich L, Cerqueira AS, Cerri A, Cerrito L, Cerutti F, Cervelli A, Cetin SA, Chafaq A, Chakraborty D, Chan SK, Chan WS, Chan YL, Chang P, Chapman JD, Charlton DG, Chau CC, Chavez Barajas CA, Che S, Cheatham S, Chegwidden A, Chekanov S, Chekulaev SV, Chelkov GA, Chelstowska MA, Chen C, Chen H, Chen J, Chen S, Chen X, Chen Y, Cheng HC, Cheng HJ, Cheplakov A, Cheremushkina E, Cherkaoui El Moursli R, Cheu E, Cheung K, Chevalier L, Chiarella V, Chiarelli G, Chiodini G, Chisholm AS, Chitan A, Chiu YH, Chizhov MV, Choi K, Chomont AR, Chouridou S, Chow YS, Christodoulou V, Chu MC, Chudoba J, Chuinard AJ, Chwastowski JJ, Chytka L, Ciftci AK, Cinca D, Cindro V, Cioara IA, Ciocio A, Cirotto F, Citron ZH, Citterio M, Ciubancan M, Clark A, Clark BL, Clark MR, Clark PJ, Clarke RN, Clement C, Coadou Y, Cobal M. Measurement of longitudinal flow decorrelations in Pb+Pb collisions at s NN = 2.76 and 5.02 TeV with the ATLAS detector. The European physical journal C, Particles and fields. 2018 Jan;78(2):142.
Journal cover image

Published In

The European physical journal. C, Particles and fields

DOI

EISSN

1434-6052

ISSN

1434-6044

Publication Date

January 2018

Volume

78

Issue

2

Start / End Page

142

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics