Measurement of the lifetime and Λ separation energy of 3ΛH
- 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=[72±63 (stat.)±36 (syst.)] keV are compatible with predictions from effective field theories and conclusively confirm that the 3ΛH is a weakly-bound system.
URN: | urn:nbn:de:hebis:30:3-797130 |
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URL: | https://arxiv.org/abs/2209.07360v2 |
DOI: | https://doi.org/10.48550/arXiv.2209.07360 |
ArXiv Id: | http://arxiv.org/abs/2209.07360v2 |
Parent Title (English): | arXiv |
Series (Serial Number): | CERN Report (CERN-EP-2022-188) |
Publisher: | arXiv |
Document Type: | Preprint |
Language: | English |
Date of Publication (online): | 2022/09/30 |
Date of first Publication: | 2022/09/30 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Creating Corporation: | ALICE (Körperschaft) |
Release Date: | 2023/11/24 |
Issue: | 2209.07360 Version 2 |
Edition: | Version 2 |
Page Number: | 10 |
HeBIS-PPN: | 51399663X |
Institutes: | Physik |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Sammlungen: | Universitätspublikationen |
Licence (German): | Creative Commons - CC BY - Namensnennung 4.0 International |