Measurement of the Lifetime and Λ Separation Energy of 3ΛH
ALICE Collaboration. (2023). Measurement of the Lifetime and Λ Separation Energy of 3ΛH. Physical Review Letters, 131, Article 102302. https://doi.org/10.1103/PhysRevLett.131.102302
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Physical Review LettersDate
2023Copyright
© 2023 CERN, for the ALICE Collaboration
The most precise measurements to date of the 3ΛH lifetime τ and Λ separation energy BΛ are obtained using the data sample of Pb-Pb collisions at √sNN=5.02 TeV collected by ALICE at the LHC. The 3ΛH is reconstructed via its charged two-body mesonic decay channel (3ΛH→3He+π− and the charge-conjugate process). The measured values τ=[253±11(stat)±6(syst)] ps and BΛ=[102±63(stat)±67(syst)] keV are compatible with predictions from effective field theories and confirm that the 3ΛH structure is consistent with a weakly bound system.
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American Physical Society (APS)ISSN Search the Publication Forum
0031-9007Keywords
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https://converis.jyu.fi/converis/portal/detail/Publication/185051485
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Research Council of Finland; European CommissionFunding program(s)
Centre of Excellence, AoF; RIA Research and Innovation Action, H2020
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
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