Measurement of the Lifetime and Λ Separation Energy of HΛ3
(2023) In Physical Review Letters 131(10).- Abstract
- The most precise measurements to date of the HΛ3 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 HΛ3 is reconstructed via its charged two-body mesonic decay channel (HΛ3→He3+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 HΛ3 structure is consistent with a weakly bound system. © 2023 CERN.
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https://lup.lub.lu.se/record/3d81191e-c2d1-477e-b291-9d039740a7e3
- author
- author collaboration
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Binary alloys, Nitrogen compounds, Charge conjugate, Data sample, Decay channels, Effective field theory, Measured values, Measurements of, Pb-Pb collisions, Precise measurements, Separation energy, Tellurium compounds
- in
- Physical Review Letters
- volume
- 131
- issue
- 10
- article number
- 102302
- publisher
- American Physical Society
- external identifiers
-
- scopus:85172215558
- pmid:37739380
- ISSN
- 0031-9007
- DOI
- 10.1103/PhysRevLett.131.102302
- language
- English
- LU publication?
- yes
- id
- 3d81191e-c2d1-477e-b291-9d039740a7e3
- date added to LUP
- 2024-01-15 14:30:39
- date last changed
- 2024-01-16 03:11:44
@article{3d81191e-c2d1-477e-b291-9d039740a7e3, abstract = {{The most precise measurements to date of the HΛ3 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 HΛ3 is reconstructed via its charged two-body mesonic decay channel (HΛ3→He3+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 HΛ3 structure is consistent with a weakly bound system. © 2023 CERN.}}, author = {{Acharya, S. and Basu, S. and Christiansen, P. and Matonoha, O. and Nassirpour, A.F. and Ohlson, A. and Oskarsson, A. and Richert, T. and Rueda, O.V. and Silvermyr, D. and Staa, J. and Zurlo, N.}}, issn = {{0031-9007}}, keywords = {{Binary alloys; Nitrogen compounds; Charge conjugate; Data sample; Decay channels; Effective field theory; Measured values; Measurements of; Pb-Pb collisions; Precise measurements; Separation energy; Tellurium compounds}}, language = {{eng}}, number = {{10}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Measurement of the Lifetime and Λ Separation Energy of HΛ3}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.131.102302}}, doi = {{10.1103/PhysRevLett.131.102302}}, volume = {{131}}, year = {{2023}}, }