A New Measurement of the $$\Xi^+_c$$ Lifetime
A precise determination of the charm-strange baryon Ξ c + lifetime is presented. The data were accumulated by the Fermilab high-energy photoproduction experiment FOCUS. The measurement is made with 300 Ξ c + → Ξ - π + π + decays, 130 Ξ c + → Σ + K - π + decays, 45 Ξ c + → pK - π + decays and 58 Ξ c + → Λ 0 K - π + π + decays. The Ξ c + lifetime is measured to be 0.439 ± 0.022 ± 0.009 ps.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Contributing Organization:
- FOCUS
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1892205
- Report Number(s):
- FERMILAB-PUB-01-296-E; arXiv:hep-ex/0110002; oai:inspirehep.net:563670
- Journal Information:
- Phys.Lett.B, Journal Name: Phys.Lett.B Vol. 523
- Country of Publication:
- United States
- Language:
- English
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