{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.90845.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1735349"}},{"@id":"https://doi.org/10.1016/j.physletb.2019.134822","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ALICE Collaboration"},"creator":{"@type":"Organization","name":"ALICE Collaboration"},"datePublished":"2019","description":"This work presents new constraints on the existence and the binding energy of a possible $\\mathrm{\\Lambda}$-$\\mathrm{\\Lambda}$ bound state, the H-dibaryon, derived from $\\mathrm{\\Lambda}$-$\\mathrm{\\Lambda}$ femtoscopic measurements by the ALICE collaboration. The results are obtained from a new measurement using the femtoscopy technique in  p-p collisions at $\\sqrt{s}=13$ TeV and p-Pb collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02$ TeV, combined with previously published results from  p-p collisions at $\\sqrt{s}=7$ TeV. The $\\mathrm{\\Lambda}$-$\\mathrm{\\Lambda}$ scattering parameter space, spanned by the inverse scattering length $f_0^{-1}$ and the effective range $d_0$, is constrained by comparing the measured $\\mathrm{\\Lambda}$-$\\mathrm{\\Lambda}$ correlation function with calculations obtained within the Lednick'y model. The data are compatible with hypernuclei results and lattice computations, both predicting a shallow attractive interaction, and permit to test different theoretical approaches describing the $\\mathrm{\\Lambda}$-$\\mathrm{\\Lambda}$ interaction. The region in the $(f_0^{-1},d_0)$ plane which would accommodate a $\\mathrm{\\Lambda}$-$\\mathrm{\\Lambda}$ bound state is substantially restricted compared to previous studies. The binding energy of the possible $\\mathrm{\\Lambda}$-$\\mathrm{\\Lambda}$ bound state is estimated within an effective-range expansion approach and is found to be $B_{\\Lambda\\Lambda} = 3.2^{+1.6}_{-2.4}\\text{(stat)}^{+1.8}_{-1.0}\\text{(syst)}$ MeV.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.90845.v1/t1","@type":"Dataset","description":"p-p correlation function in p-p collisions at $\\sqrt{s}=13$ TeV.","name":"Table 1a"},{"@id":"https://doi.org/10.17182/hepdata.90845.v1/t2","@type":"Dataset","description":"$\\Lambda$-$\\Lambda$ correlation function in p-p collisions at $\\sqrt{s}=13$ TeV.","name":"Table 1b"},{"@id":"https://doi.org/10.17182/hepdata.90845.v1/t3","@type":"Dataset","description":"$\\Lambda$-$\\Lambda$ correlation function in p-Pb collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02$ TeV.","name":"Table 2b"},{"@id":"https://doi.org/10.17182/hepdata.90845.v1/t4","@type":"Dataset","description":"Exclusion plot for the $\\Lambda$-$\\Lambda$ scattering parameters (1$\\sigma$ contour).","name":"Table 3-1"},{"@id":"https://doi.org/10.17182/hepdata.90845.v1/t5","@type":"Dataset","description":"Exclusion plot for the $\\Lambda$-$\\Lambda$ scattering parameters (2$\\sigma$ contour).","name":"Table 3-2"},{"@id":"https://doi.org/10.17182/hepdata.90845.v1/t6","@type":"Dataset","description":"Exclusion plot for the $\\Lambda$-$\\Lambda$ scattering parameters (3$\\sigma$ contour).","name":"Table 3-3"},{"@id":"https://doi.org/10.17182/hepdata.90845.v1/t7","@type":"Dataset","description":"Exclusion plot for the $\\Lambda$-$\\Lambda$ binding energy (statistical uncertainty).","name":"Table 4 STAT"},{"@id":"https://doi.org/10.17182/hepdata.90845.v1/t8","@type":"Dataset","description":"Exclusion plot for the $\\Lambda$-$\\Lambda$ binding energy (total uncertainty).","name":"Table 4 TOT"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1735349?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/90845"}],"inLanguage":"en","name":"Study of the $\\Lambda$-$\\Lambda$ interaction with femtoscopy correlations in pp and p-Pb collisions at the LHC","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1735349?version=1","version":1}