CMS-PAS-HIN-21-006 | ||
Two-particle femtoscopic correlation measurements of $\mathrm{K^{0}_{S}}$ and $\Lambda (\overline{\Lambda})$ particles in PbPb collisions at ${\sqrt {\smash [b]{s_{_{\mathrm {NN}}}}}}= $ 5.02 TeV | ||
CMS Collaboration | ||
June 2022 | ||
Abstract: Two-particle correlations as a function of relative momentum are presented for $\mathrm{K^{0}_{S}}$, $\Lambda$, and $\overline{\Lambda}$ strange hadrons produced in lead-lead collisions at ${\sqrt {\smash [b]{s_{_{\mathrm {NN}}}}}}= $ 5.02 TeV. The data were obtained using the CMS detector at the LHC. Such correlations are sensitive to quantum statistics and to possible final-state interactions between the particles. Source radii extracted from $\mathrm{K^{0}_{S}K^{0}_{S}}$ correlations in different centrality regions are found to decrease in going from central to peripheral collisions. Strong-interaction scattering parameters (i.e., scattering length and effective range) are determined from $\Lambda\mathrm{K^{0}_{S}}\oplus\overline{\Lambda}\mathrm{K^{0}_{S}}$ and $\Lambda\Lambda\oplus\overline{\Lambda}\overline{\Lambda}$ correlations using the Lednicky-Lyuboshits model and compared to other experimental and theoretical results. | ||
Links:
CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Submitted to PLB. The superseded preliminary plots can be found here. |
Compact Muon Solenoid LHC, CERN |