Anisotropic flow of identified particles in Pb-Pb collisions at root s(NN)=5.02 TeV

S. Acharya; F Acosta; D. Adamova; J Adolfsson; MM. Aggarwal; G.A. Rinella; A. Agnello; N. Agrawal; Z. Ahammed; S.U. Ahn; S. Aiola; A. Akindinov; M. Al-Turany; SN Alam; DSD Albuquerque; D. Aleksandrov; B Alessandro; Rafael A. Molina; Yusuf Ali; Ian Bearden; Christian Holm Christensen; Christian Alexander Bourjau; bsm989 bsm989; Ante Bilandzic; Ozelin De Lima Pimentel Lais; Jens Jørgen Gaardhøje; Marek Chojnacki; Katarina Gajdosova; Freja Thoresen; Børge Svane Nielsen; You Zhou; Vytautas Vislavicius

doi:10.1007/JHEP09(2018)006

Anisotropic flow of identified particles in Pb-Pb collisions at root s(NN)=5.02 TeV

S. Acharya, F Acosta, D. Adamova, J Adolfsson, MM. Aggarwal, G.A. Rinella, A. Agnello, N. Agrawal, Z. Ahammed, S.U. Ahn, S. Aiola, A. Akindinov, M. Al-Turany, SN Alam, DSD Albuquerque, D. Aleksandrov, B Alessandro, Rafael A. Molina, Yusuf Ali, Ian BeardenChristian Holm Christensen, Christian Alexander Bourjau, bsm989 bsm989, Ante Bilandzic, Ozelin De Lima Pimentel Lais, Jens Jørgen Gaardhøje, Marek Chojnacki, Katarina Gajdosova, Freja Thoresen, Børge Svane Nielsen, You Zhou, Vytautas Vislavicius

Experimental Particle Physics

28 Citations (Scopus)

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Abstract

The elliptic (v₂), triangular (v₃), and quadrangular (v₄) flow coefficients of π^±, K^±, p+p¯,Λ+Λ¯,KS0, and the ϕ-meson are measured in Pb-Pb collisions at sNN=5.02 TeV. Results obtained with the scalar product method are reported for the rapidity range |y| < 0.5 as a function of transverse momentum, p_T, at different collision centrality intervals between 0–70%, including ultra-central (0–1%) collisions for π^±, K^±, and p + p ¯. For p_T< 3 GeV/c, the flow coefficients exhibit a particle mass dependence. At intermediate transverse momenta (3 < p_T < 8–10 GeV/c), particles show an approximate grouping according to their type (i.e., mesons and baryons). The ϕ-meson v₂, which tests both particle mass dependence and type scaling, follows p + p ¯ v₂ at low p_T and π^±v₂ at intermediate p_T. The evolution of the shape of v_n(p_T) as a function of centrality and harmonic number n is studied for the various particle species. Flow coefficients of π^±, K^±, and p + p ¯ for p_T < 3 GeV/c are compared to iEBE-VISHNU and MUSIC hydrodynamical calculations coupled to a hadronic cascade model (UrQMD). The iEBE-VISHNU calculations describe the results fairly well for p_T < 2.5 GeV/c, while MUSIC calculations reproduce the measurements for p_T < 1 GeV/c. A comparison to v_n coefficients measured in Pb-Pb collisions at sNN=2.76 TeV is also provided.[Figure not available: see fulltext.].

Original language	English
Article number	006
Journal	Journal of High Energy Physics
Volume	2018
Issue number	9
Number of pages	46
ISSN	1126-6708
DOIs	https://doi.org/10.1007/JHEP09(2018)006
Publication status	Published - 1 Sept 2018

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Acharya, S., Acosta, F., Adamova, D., Adolfsson, J., Aggarwal, MM., Rinella, G. A., Agnello, A., Agrawal, N., Ahammed, Z., Ahn, S. U., Aiola, S., Akindinov, A., Al-Turany, M., Alam, SN., Albuquerque, DSD., Aleksandrov, D., Alessandro, B., Molina, R. A., Ali, Y., ... Vislavicius, V. (2018). Anisotropic flow of identified particles in Pb-Pb collisions at root s(NN)=5.02 TeV. Journal of High Energy Physics, 2018(9), Article 006. https://doi.org/10.1007/JHEP09(2018)006

Acharya, S, Acosta, F, Adamova, D, Adolfsson, J, Aggarwal, MM, Rinella, GA, Agnello, A, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, RA, Ali, Y, Bearden, I , Christensen, CH, Bourjau, CA, bsm989, B, Bilandzic, A, Lais, ODLP, Gaardhøje, JJ, Chojnacki, M, Gajdosova, K, Thoresen, F, Nielsen, BS , Zhou, Y & Vislavicius, V 2018, 'Anisotropic flow of identified particles in Pb-Pb collisions at root s(NN)=5.02 TeV', Journal of High Energy Physics, vol. 2018, no. 9, 006. https://doi.org/10.1007/JHEP09(2018)006

@article{9ec764d10e35404ca8000f0637c98ce4,

title = "Anisotropic flow of identified particles in Pb-Pb collisions at root s(NN)=5.02 TeV",

abstract = "The elliptic (v2), triangular (v3), and quadrangular (v4) flow coefficients of π±, K±, p+p¯,Λ+Λ¯,KS0, and the ϕ-meson are measured in Pb-Pb collisions at sNN=5.02 TeV. Results obtained with the scalar product method are reported for the rapidity range |y| < 0.5 as a function of transverse momentum, pT, at different collision centrality intervals between 0–70%, including ultra-central (0–1%) collisions for π±, K±, and p + p ¯. For pT< 3 GeV/c, the flow coefficients exhibit a particle mass dependence. At intermediate transverse momenta (3 < pT < 8–10 GeV/c), particles show an approximate grouping according to their type (i.e., mesons and baryons). The ϕ-meson v2, which tests both particle mass dependence and type scaling, follows p + p ¯ v2 at low pT and π±v2 at intermediate pT. The evolution of the shape of vn(pT) as a function of centrality and harmonic number n is studied for the various particle species. Flow coefficients of π±, K±, and p + p ¯ for pT < 3 GeV/c are compared to iEBE-VISHNU and MUSIC hydrodynamical calculations coupled to a hadronic cascade model (UrQMD). The iEBE-VISHNU calculations describe the results fairly well for pT < 2.5 GeV/c, while MUSIC calculations reproduce the measurements for pT < 1 GeV/c. A comparison to vn coefficients measured in Pb-Pb collisions at sNN=2.76 TeV is also provided.[Figure not available: see fulltext.].",

author = "S. Acharya and F Acosta and D. Adamova and J Adolfsson and MM. Aggarwal and G.A. Rinella and A. Agnello and N. Agrawal and Z. Ahammed and S.U. Ahn and S. Aiola and A. Akindinov and M. Al-Turany and SN Alam and DSD Albuquerque and D. Aleksandrov and B Alessandro and Molina, {Rafael A.} and Yusuf Ali and Ian Bearden and Christensen, {Christian Holm} and Bourjau, {Christian Alexander} and bsm989 bsm989 and Ante Bilandzic and Lais, {Ozelin De Lima Pimentel} and Gaardh{\o}je, {Jens J{\o}rgen} and Marek Chojnacki and Katarina Gajdosova and Freja Thoresen and Nielsen, {B{\o}rge Svane} and You Zhou and Vytautas Vislavicius",

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doi = "10.1007/JHEP09(2018)006",

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journal = "Journal of High Energy Physics",

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T1 - Anisotropic flow of identified particles in Pb-Pb collisions at root s(NN)=5.02 TeV

AU - Acharya, S.

AU - Acosta, F

AU - Adamova, D.

AU - Adolfsson, J

AU - Aggarwal, MM.

AU - Rinella, G.A.

AU - Agnello, A.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahn, S.U.

AU - Aiola, S.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, SN

AU - Albuquerque, DSD

AU - Aleksandrov, D.

AU - Alessandro, B

AU - Molina, Rafael A.

AU - Ali, Yusuf

AU - Bearden, Ian

AU - Christensen, Christian Holm

AU - Bourjau, Christian Alexander

AU - bsm989, bsm989

AU - Bilandzic, Ante

AU - Lais, Ozelin De Lima Pimentel

AU - Gaardhøje, Jens Jørgen

AU - Chojnacki, Marek

AU - Gajdosova, Katarina

AU - Thoresen, Freja

AU - Nielsen, Børge Svane

AU - Zhou, You

AU - Vislavicius, Vytautas

PY - 2018/9/1

Y1 - 2018/9/1

N2 - The elliptic (v2), triangular (v3), and quadrangular (v4) flow coefficients of π±, K±, p+p¯,Λ+Λ¯,KS0, and the ϕ-meson are measured in Pb-Pb collisions at sNN=5.02 TeV. Results obtained with the scalar product method are reported for the rapidity range |y| < 0.5 as a function of transverse momentum, pT, at different collision centrality intervals between 0–70%, including ultra-central (0–1%) collisions for π±, K±, and p + p ¯. For pT< 3 GeV/c, the flow coefficients exhibit a particle mass dependence. At intermediate transverse momenta (3 < pT < 8–10 GeV/c), particles show an approximate grouping according to their type (i.e., mesons and baryons). The ϕ-meson v2, which tests both particle mass dependence and type scaling, follows p + p ¯ v2 at low pT and π±v2 at intermediate pT. The evolution of the shape of vn(pT) as a function of centrality and harmonic number n is studied for the various particle species. Flow coefficients of π±, K±, and p + p ¯ for pT < 3 GeV/c are compared to iEBE-VISHNU and MUSIC hydrodynamical calculations coupled to a hadronic cascade model (UrQMD). The iEBE-VISHNU calculations describe the results fairly well for pT < 2.5 GeV/c, while MUSIC calculations reproduce the measurements for pT < 1 GeV/c. A comparison to vn coefficients measured in Pb-Pb collisions at sNN=2.76 TeV is also provided.[Figure not available: see fulltext.].

AB - The elliptic (v2), triangular (v3), and quadrangular (v4) flow coefficients of π±, K±, p+p¯,Λ+Λ¯,KS0, and the ϕ-meson are measured in Pb-Pb collisions at sNN=5.02 TeV. Results obtained with the scalar product method are reported for the rapidity range |y| < 0.5 as a function of transverse momentum, pT, at different collision centrality intervals between 0–70%, including ultra-central (0–1%) collisions for π±, K±, and p + p ¯. For pT< 3 GeV/c, the flow coefficients exhibit a particle mass dependence. At intermediate transverse momenta (3 < pT < 8–10 GeV/c), particles show an approximate grouping according to their type (i.e., mesons and baryons). The ϕ-meson v2, which tests both particle mass dependence and type scaling, follows p + p ¯ v2 at low pT and π±v2 at intermediate pT. The evolution of the shape of vn(pT) as a function of centrality and harmonic number n is studied for the various particle species. Flow coefficients of π±, K±, and p + p ¯ for pT < 3 GeV/c are compared to iEBE-VISHNU and MUSIC hydrodynamical calculations coupled to a hadronic cascade model (UrQMD). The iEBE-VISHNU calculations describe the results fairly well for pT < 2.5 GeV/c, while MUSIC calculations reproduce the measurements for pT < 1 GeV/c. A comparison to vn coefficients measured in Pb-Pb collisions at sNN=2.76 TeV is also provided.[Figure not available: see fulltext.].

U2 - 10.1007/JHEP09(2018)006

DO - 10.1007/JHEP09(2018)006

M3 - Journal article

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 9

M1 - 006

ER -

Anisotropic flow of identified particles in Pb-Pb collisions at root s(NN)=5.02 TeV

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