Review of Charm Lifetimes
| dc.creator | Cheung, Harry W. K. | |
| dc.date | 1999-12-10 | |
| dc.date.accessioned | 2026-07-07T03:38:13Z | |
| dc.date.available | 2026-07-07T03:38:13Z | |
| dc.description | A review of the latest experimental results on charm particle lifetimes is presented. The most significant update is that the D_s^+ lifetime is conclusively larger than the D^0 lifetime and signifies that W-exchange/W-annihilation contributions are large. Using new high statistics data on $D^+\to K^+π^+π^-$ together with the D_s^+ lifetime and some assumptions, one can phenomenologically extract the strength of the W-exchange contribution in D^0 decays and of W-annihilation in D_s^+ decays. These are larger than or at the limit of theoretical expectations using QCD-based operator production expansion techniques. | |
| dc.description | Talk presented at the 8th International Symposium on Heavy Flavour Physics, Southampton, U.K., 25--29 July 1999 | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9912021 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9912021 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/38438 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Review of Charm Lifetimes | |
| dc.type | text |