KS0 and Λ(Λ‾) two-particle femtoscopic correlations in PbPb collisions at sNN=5.02TeV
Journal
Physics Letters B
Journal Volume
857
Start Page
138936
ISSN
0370-2693
Date Issued
2024-10
Author(s)
Abstract
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.
Subjects
CMS
Femtoscopy
Heavy ion
Scattering parameters
V0
Publisher
Elsevier BV
Type
journal article