K0 S and Λ(Λ) Two-Particle Femtoscopic Correlations in PbPb Collisions at √𝑠NN = 5.02TeV
Physics Letters B 2024
Kārlis Dreimanis, Guntis Pikurs, Andris Potrebko, Markus Seidel, Viesturs Veckalns, CMS Collaboration

Two-particle correlations are presented for KS0, [Formula presented], and [Formula presented] strange hadrons as a function of relative momentum in lead-lead collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The dataset corresponds to an integrated luminosity of 0.607nb−1 and was collected using the CMS detector at the CERN LHC. These correlations are sensitive to quantum statistics and to final-state interactions between the particles. The source size extracted from the KS0KS0 correlations is found to decrease from 4.6 to 1.6 fm in going from central to peripheral collisions. Strong interaction scattering parameters (i.e., scattering length and effective range) are determined from the [Formula presented] and [Formula presented] (including their charge conjugates) correlations using the Lednický–Lyuboshitz model and are compared to theoretical and other experimental results.


Keywords
CMS | Femtoscopy | Heavy ion | Scattering parameters | V0
DOI
10.1016/j.physletb.2024.138936
Hyperlink
https://www.sciencedirect.com/science/article/pii/S0370269324004945

The CMS Collaboration, Tumasyan, A., Dreimanis, K., Pikurs, G., Potrebko, A., Seidel, M., Veckalns, V., ... [et al.] K0 S and Λ(Λ) Two-Particle Femtoscopic Correlations in PbPb Collisions at √𝑠NN = 5.02TeV. Physics Letters B, 2024, Vol. 857, Article number 138936. ISSN 0370-2693. e-ISSN 1873-2445. Pieejams: doi:10.1016/j.physletb.2024.138936

Publication language
English (en)
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