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 |
|---|---|
| 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 |
