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Strange hadron collectivity in pPb and PbPb collisions

The CMS collaboration Tumasyan, Armen ; Adam, Wolfgang ; Andrejkovic, Janik Walter ; et al.

JHEP 05 (2023) 007, 2023.

https://inspirehep.net/literature/2075415 Inspire Record 2075415 DOI 10.17182/hepdata.115425 https://doi.org/10.17182/hepdata.115425

The collective behavior of K$^0_\mathrm{S}$ and $\Lambda/\bar{\Lambda}$ strange hadrons is studied by measuring the elliptic azimuthal anisotropy ($v_2$) using the scalar-product and multiparticle correlation methods. Proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy $\sqrt{s_\mathrm{NN}}$ = 8.16 TeV and lead-lead (PbPb) collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV collected by the CMS experiment at the LHC are investigated. Nonflow effects in the pPb collisions are studied by using a subevent cumulant analysis and by excluding events where a jet with transverse momentum greater than 20\GeV is present. The strange hadron $v_2$ values extracted in \pPb collisions via the four- and six-particle correlation method are found to be nearly identical, suggesting the collective behavior. Comparisons of the pPb and PbPb results for both strange hadrons and charged particles illustrate how event-by-event flow fluctuations depend on the system size.

55 data tables

table1

The elliptic flow $v_2\{4\}$ for charged hadron as a function of $p_T$ in PbPb collision at 5.02 TeV.

table2

The elliptic flow $v_2\{6\}$ for charged hadron as a function of $p_T$ in PbPb collision at 5.02 TeV.

table3

The elliptic flow $v_2\{8\}$ for charged hadron as a function of $p_T$ in PbPb collision at 5.02 TeV.

table4

The elliptic flow $v_2\{SP\}$ for charged hadron as a function of $p_T$ in PbPb collision at 5.02 TeV.

table5

The elliptic flow $v_2\{4\}$ for $K_S^0$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table6

The elliptic flow $v_2\{6\}$ for $K_S^0$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table7

The elliptic flow $v_2\{8\}$ for $K_S^0$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table8

The elliptic flow $v_2\{SP\}$ for $K_S^0$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table9

The elliptic flow $v_2\{4\}$ for $\Lambda$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table10

The elliptic flow $v_2\{6\}$ for $\Lambda$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table11

The elliptic flow $v_2\{8\}$ for $\Lambda$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table12

The elliptic flow $v_2\{SP\}$ for $\Lambda$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table13

The elliptic flow $v_2\{4\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table14

The elliptic flow $v_2\{6\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table15

The elliptic flow $v_2\{8\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table16

The elliptic flow $v_2\{p-SP\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table17

The elliptic flow $v_2\{Pb-SP\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table18

The elliptic flow $v_2\{4\}$ for $K_S^0$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table19

The elliptic flow $v_2\{6\}$ for $K_S^0$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table20

The elliptic flow $v_2\{p-SP\}$ for $K_S^0$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table21

The elliptic flow $v_2\{Pb-SP\}$ for $K_S^0$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table22

The elliptic flow $v_2\{4\}$ for $\Lambda$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table23

The elliptic flow $v_2\{6\}$ for $\Lambda$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table24

The elliptic flow $v_2\{p-SP\}$ for $\Lambda$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table25

The elliptic flow $v_2\{Pb-SP\}$ for $\Lambda$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table26

The elliptic flow $v_2\{4,veto\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table27

The elliptic flow $v_2\{6,veto\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table28

The ratio $v_2\{4,veto\}/v_2\{4\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table29

The ratio $v_2\{6,veto\}/v_2\{6\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table30

The elliptic flow $v_2\{4,Sub\}$ for charged hadron as a function of $p_T$ in PbPb collision at 5.02 TeV.

table31

The elliptic flow $v_2\{4,Sub\}$ for $K_S^0$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table32

The elliptic flow $v_2\{4,Sub\}$ for $\Lambda$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table33

The elliptic flow $v_2\{4,Sub\}$ for $K_S^0$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table34

The elliptic flow $v_2\{4,Sub\}$ for $\Lambda$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table35

The elliptic flow $v_2\{4,Sub\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table36

The ratio $v_2\{4,Sub\}/v_2\{4\}$ for charged hadron as a function of $p_T$ in PbPb collision at 5.02 TeV.

table37

The ratio $v_2\{4,Sub\}/v_2\{4\}$ for $K_S^0$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table38

The ratio $v_2\{4,Sub\}/v_2\{4\}$ for $\Lambda$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table39

The ratio $v_2\{4,Sub\}/v_2\{4\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table40

The ratio $v_2\{4,Sub\}/v_2\{4\}$ for $K_S^0$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table41

The ratio $v_2\{4,Sub\}/v_2\{4\}$ for $\Lambda$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table42

The flow fluctuation $\sigma/\langle v_{2} \rangle$ for charged hadron as a function of $p_T$ in PbPb collision at 5.02 TeV.

table43

The flow fluctuation $\sigma/\langle v_2 \rangle$ for $K_S^0$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table44

The flow fluctuation $\sigma/\langle v_2 \rangle$ for $\Lambda$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table45

The flow fluctuation $\sigma/\langle v_2 \rangle$ for $K_S^0$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table46

The flow fluctuation $\sigma/\langle v_2 \rangle$ for $\Lambda$ as a function of $p_T$ in pPb collision at 8.16 TeV.

table47

The flow fluctuation $\sigma/\langle v_2 \rangle$ using $v_2\{4\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table48

The flow fluctuation $\sigma/\langle v_2 \rangle$ using $v_2\{6\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table49

The flow fluctuation $\sigma/\langle v_2 \rangle$ using $v_2\{4,veto\}$ for charged hadron as a function of $p_T$ in pPb collision at 8.16 TeV.

table50

The $v_2\{6\}/v_2\{4\}$ ratio for charged hadron as a function of $p_T$ in PbPb collision at 5.02 TeV.

table51

The $v_2\{6\}/v_2\{4\}$ ratio for $K_S^0$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table52

The $v_2\{6\}/v_2\{4\}$ ratio for $\Lambda$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table53

The $v_2\{8\}/v_2\{4\}$ ratio for charged hadron as a function of $p_T$ in PbPb collision at 5.02 TeV.

table54

The $v_2\{8\}/v_2\{4\}$ ratio for $K_S^0$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

table55

The $v_2\{8\}/v_2\{4\}$ ratio for $\Lambda$ as a function of $p_T$ in PbPb collision at 5.02 TeV.

More…