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
Julkaistu sarjassa
Physical Review LettersTekijät
Päivämäärä
2023Tekijänoikeudet
© 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.
Julkaisija
American Physical Society (APS)ISSN Hae Julkaisufoorumista
0031-9007Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/185051485
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Rahoittaja(t)
Suomen Akatemia; Euroopan komissioRahoitusohjelmat(t)
Huippuyksikkörahoitus, SA
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