Article ; Online: Measurement of the Lifetime and Λ Separation Energy of _{Λ}^{3}H.
2023 Volume 131, Issue 10, Page(s) 102302
Abstract: The most precise measurements to date of the _{Λ}^{3}H lifetime τ and Λ separation energy B_{Λ} are ... The _{Λ}^{3}H is reconstructed via its charged two-body mesonic decay channel (_{Λ}^{3}H→^{3}He+π^{-} and ... H structure is consistent with a weakly bound system. ...
Abstract | The most precise measurements to date of the _{Λ}^{3}H lifetime τ and Λ separation energy B_{Λ} are obtained using the data sample of Pb-Pb collisions at sqrt[s_{NN}]=5.02 TeV collected by ALICE at the LHC. The _{Λ}^{3}H is reconstructed via its charged two-body mesonic decay channel (_{Λ}^{3}H→^{3}He+π^{-} and the charge-conjugate process). The measured values τ=[253±11(stat)±6(syst)] ps and B_{Λ}=[102±63(stat)±67(syst)] keV are compatible with predictions from effective field theories and confirm that the _{Λ}^{3}H structure is consistent with a weakly bound system. |
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Language | English |
Publishing date | 2023-09-22 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 208853-8 |
ISSN | 1079-7114 ; 0031-9007 |
ISSN (online) | 1079-7114 |
ISSN | 0031-9007 |
DOI | 10.1103/PhysRevLett.131.102302 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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