Imperial College London

Professor Sir Tejinder Singh Virdee FRS

Faculty of Natural SciencesDepartment of Physics

Professor of Physics
 
 
 
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Contact

 

+44 (0)20 7594 7590t.virdee Website

 
 
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Location

 

506Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sirunyan:2017:10.1103/PhysRevC.96.064902,
author = {Sirunyan, AM and Tumasyan, A and Adam, W and Ambrogi, F and Asilar, E and Bergauer, T and Brandstetter, J and Brondolin, E and Dragicevic, M and Eroe, J and Flechl, M and Friedl, M and Fruehwirth, R and Ghete, VM and Grossmann, J and Hrubec, J and Jeitler, M and Koenig, A and Krammer, N and Kraetschmer, I and Liko, D and Madlener, T and Mikulec, I and Pree, E and Rabady, D and Rad, N and Rohringer, H and Schieck, J and Schoefbeck, R and Spanring, M and Spitzbart, D and Strauss, J and Waltenberger, W and Wittmann, J and Wulz, C-E and Zarucki, M and Chekhovsky, V and Mossolov, V and Gonzalez, JS and De, Wolf EA and Janssen, X and Lauwers, J and Van, de Klundert M and Van, Haevermaet H and Van, Mechelen P and Van, Remortel N and Van, Spilbeeck A and Abu, Zeid S and Blekman, F and D'Hondt, J and De, Bruyn I and De, Clercq J and Deroover, K and Flouris, G and Lowette, S and Moortgat, S and Moreels, L and Olbrechts, A and Python, Q and Skovpen, K and Tavernier, S and Van, Doninck W and Van, },
doi = {10.1103/PhysRevC.96.064902},
journal = {Physical Review C - Nuclear Physics},
title = {Principal-component analysis of two-particle azimuthal correlations in PbPb and pPb collisions at CMS},
url = {http://dx.doi.org/10.1103/PhysRevC.96.064902},
volume = {96},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - For the first time a principle-component analysis is used to separate out different orthogonal modes of the two-particle correlation matrix from heavy ion collisions. The analysis uses data from √sNN=2.76TeV PbPb and √sNN=5.02TeV pPb collisions collected by the CMS experiment at the CERN Large Hadron Collider. Two-particle azimuthal correlations have been extensively used to study hydrodynamic flow in heavy ion collisions. Recently it was shown that the expected factorization of two-particle results into a product of the constituent single-particle anisotropies is broken. The new information provided by these modes may shed light on the breakdown of flow factorization in heavy ion collisions. The first two modes (“leading” and “subleading”) of two-particle correlations are presented for elliptical and triangular anisotropies in PbPb and pPb collisions as a function of pT over a wide range of event activity. The leading mode is found to be essentially equivalent to the anisotropy harmonic previously extracted from two-particle correlation methods. The subleading mode represents a new experimental observable and is shown to account for a large fraction of the factorization breaking recently observed at high transverse momentum. The principle-component analysis technique was also applied to multiplicity fluctuations. These also show a subleading mode. The connection of these new results to previous studies of factorization is discussed.
AU - Sirunyan,AM
AU - Tumasyan,A
AU - Adam,W
AU - Ambrogi,F
AU - Asilar,E
AU - Bergauer,T
AU - Brandstetter,J
AU - Brondolin,E
AU - Dragicevic,M
AU - Eroe,J
AU - Flechl,M
AU - Friedl,M
AU - Fruehwirth,R
AU - Ghete,VM
AU - Grossmann,J
AU - Hrubec,J
AU - Jeitler,M
AU - Koenig,A
AU - Krammer,N
AU - Kraetschmer,I
AU - Liko,D
AU - Madlener,T
AU - Mikulec,I
AU - Pree,E
AU - Rabady,D
AU - Rad,N
AU - Rohringer,H
AU - Schieck,J
AU - Schoefbeck,R
AU - Spanring,M
AU - Spitzbart,D
AU - Strauss,J
AU - Waltenberger,W
AU - Wittmann,J
AU - Wulz,C-E
AU - Zarucki,M
AU - Chekhovsky,V
AU - Mossolov,V
AU - Gonzalez,JS
AU - De,Wolf EA
AU - Janssen,X
AU - Lauwers,J
AU - Van,de Klundert M
AU - Van,Haevermaet H
AU - Van,Mechelen P
AU - Van,Remortel N
AU - Van,Spilbeeck A
AU - Abu,Zeid S
AU - Blekman,F
AU - D'Hondt,J
AU - De,Bruyn I
AU - De,Clercq J
AU - Deroover,K
AU - Flouris,G
AU - Lowette,S
AU - Moortgat,S
AU - Moreels,L
AU - Olbrechts,A
AU - Python,Q
AU - Skovpen,K
AU - Tavernier,S
AU - Van,Doninck W
AU - Van,Mulders P
AU - Van,Parijs I
AU - Brun,H
AU - Clerbaux,B
AU - De,Lentdecker G
AU - Delannoy,H
AU - Fasanella,G
AU - Favart,L
AU - Goldouzian,R
AU - Grebenyuk,A
AU - Karapostoli,G
AU - Lenzi,T
AU - Luetic,J
AU - Maerschalk,T
AU - Marinov,A
AU - Randle-conde,A
AU - Seva,T
AU - Vander,Velde C
AU - Vanlaer,P
AU - Vannerom,D
AU - Yonamine,R
AU - Zenoni,F
AU - Zhang,F
AU - Cimmino,A
AU - Cornelis,T
AU - Dobur,D
AU - Fagot,A
AU - Gul,M
AU - Khvastunov,I
AU - Poyraz,D
AU - Roskas,C
AU - Salva,S
AU - Tytgat,M
AU - Verbeke,W
AU - Zaganidis,N
AU - Bakhshiansohi,H
AU - Bondu,O
AU - Brochet,S
AU - Bruno,G
AU - Caudron,A
AU - De,Visscher S
AU - Delaere,C
AU - Delcourt,M
AU - Francois,B
AU - Giammanco,A
AU - Jafari,A
AU - Komm,M
AU - Krintiras,G
AU - Lemaitre,V
AU - Magitteri,A
AU - Mertens,A
AU - Musich,M
AU - Piotrzkowski,K
AU - Quertenmont,L
AU - Marono,MV
AU - Wertz,S
AU - Beliy,N
AU - Alda,Junior WL
AU - Alves,FL
AU - Alves,GA
AU - Brito,L
AU - Correa,Martins Junior M
AU - Hensel,C
AU - Moraes,A
AU - Pol,ME
AU - Rebello,Teles P
AU - Belchior,Batista Das Chagas E
AU - Carvalho,W
AU - Chinellato,J
AU - Custodio,A
AU - Da,Costa EM
AU - Da,Silveira GG
AU - De,Jesus Damiao D
AU - Fonseca,De Souza S
AU - Huertas,Guativa LM
AU - Malbouisson,H
AU - Melo,De Almeida M
AU - Mora,Herrera C
AU - Mundim,L
AU - Nogima,H
AU - Santoro,A
AU - Sznajder,A
AU - Tonelli,Manganote EJ
AU - Torres,Da Silva De Araujo F
AU - Vilela,Pereira A
AU - Ahuja,S
AU - Bernardes,CA
AU - Fernandez,Perez Tomei TR
AU - Gregores,EM
AU - Mercadante,PG
AU - Moon,CS
AU - Novaes,SF
AU - Padula,SS
AU - Romero,Abad D
AU - Ruiz,Vargas JC
AU - Aleksandrov,A
AU - Ha
DO - 10.1103/PhysRevC.96.064902
PY - 2017///
SN - 0556-2813
TI - Principal-component analysis of two-particle azimuthal correlations in PbPb and pPb collisions at CMS
T2 - Physical Review C - Nuclear Physics
UR - http://dx.doi.org/10.1103/PhysRevC.96.064902
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000417077300003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/55669
VL - 96
ER -