K$^0_\mathrm{S}$ and $\Lambda(\overline\Lambda)$ two-particle femtoscopic correlations in PbPb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV

The CMS collaboration
Phys.Lett.B 857 (2024) 138936, 2024.

Abstract (data abstract)
Two-particle correlations are presented for $\mathrm{K^{0}_{S}}$, $\Lambda$, and $\overline{\Lambda}$ strange hadrons as a function of relative momentum in lead-lead collisions at $\sqrt{s_{_{\mathrm{NN}}}} = 5.02$ TeV. The dataset corresponds to an integrated luminosity of 0.607 $\mathrm{nb}^{-1}$ and was collected using the CMS detector at the CERN LHC. Such correlations are sensitive to quantum statistics and to final-state interactions between the particles. The source size extracted from the $\mathrm{K^{0}_{S}K^{0}_{S}}$ correlations is found to decrease from 4 to 1 fm in going from central to peripheral collisions. Strong interaction scattering parameters (i.e., scattering length and effective range) are determined from the $\Lambda\mathrm{K^{0}_{S}}$ and $\Lambda\Lambda$ (including their charge conjugates) correlations using the Lednicky--Lyuboshits model and are compared to theoretical and other experimental results.

  • Table 1

    Data from figure 1 left.

    10.17182/hepdata.133573.v1/t1

    The $K^{0}_{S}$ Invariant mass in $0-80\%$ centrality,

  • Table 2

    Data from figure 1 right.

    10.17182/hepdata.133573.v1/t2

    The $\Lambda (\overline{\Lambda})$ Invariant mass in $0-80\%$ centrality.

  • Table 3

    Data from figure 2 top left.

    10.17182/hepdata.133573.v1/t3

    $K^{0}_{S} K^{0}_{S}$ correlation meassurement in $0-10\%$ centrality.

  • Table 4

    Data from figure 2 top middle.

    10.17182/hepdata.133573.v1/t4

    $K^{0}_{S} K^{0}_{S}$ correlation meassurement in $10-20\%$ centrality.

  • Table 5

    Data from figure 2 top right.

    10.17182/hepdata.133573.v1/t5

    $K^{0}_{S} K^{0}_{S}$ correlation meassurement in $20-30\%$ centrality.

  • Table 6

    Data from figure 2 bottom left.

    10.17182/hepdata.133573.v1/t6

    $K^{0}_{S} K^{0}_{S}$ correlation meassurement in $30-40\%$ centrality.

  • Table 7

    Data from figure 2 bottom middle.

    10.17182/hepdata.133573.v1/t7

    $K^{0}_{S} K^{0}_{S}$ correlation meassurement in $40-50\%$ centrality.

  • Table 8

    Data from figure 2 bottom right.

    10.17182/hepdata.133573.v1/t8

    $K^{0}_{S} K^{0}_{S}$ correlation meassurement in $50-60\%$ centrality.

  • Table 9

    Data from figure 3 left.

    10.17182/hepdata.133573.v1/t9

    $\Lambda K^{0}_{S} \oplus \overline{\Lambda} K^{0}_{S}$ correlation meassurement in $0-80\%$ centrality.

  • Table 10

    Data from figure 3 right.

    10.17182/hepdata.133573.v1/t10

    $\Lambda\Lambda\oplus\overline{\Lambda}\overline{\Lambda}$ correlation meassurement in $0-80\%$ centrality.

  • Table 11

    Data from figure 4 left.

    10.17182/hepdata.133573.v1/t11

    The extracted $R_{inv}$ from $K^{0}_{S} K^{0}_{S}$ correlations as a function of centrality.

  • Table 12

    Data from figure 4 right.

    10.17182/hepdata.133573.v1/t12

    The extracted $\lambda$ parameters from $K^{0}_{S} K^{0}_{S}$ correlations as a function of centrality.

  • Table 13

    Data from figure 5 left.

    10.17182/hepdata.133573.v1/t13

    Extracted effective range ($d_{0}$) and real components of the complex scattering length ($\Re f_{0}$) from the $\Lambda\Lambda\oplus\overline{\Lambda}\overline{\Lambda}$ and $\Lambda K^{0}_{S}...

  • Table 14

    Data from figure 5 right.

    10.17182/hepdata.133573.v1/t14

    Extracted imaginary components of the complex scattering length ($\Im f_{0}$) and real components of the complex scattering length ($\Re f_{0}$)...

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