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A Cross-Section Measurement of Charm Hyperons $$\Xi^+_c$$ and $$\Xi^0_c$$ in 250-GeV p / K / $$\pi$$ - Nucleon Interactions

Thesis/Dissertation ·
DOI:https://doi.org/10.2172/1423677· OSTI ID:1423677
Fermilab Experiment 769 used a charge-selected, hadron beam of mean energy 250 GeV /c, composed of pions, kaons, and protons, impinging on beryllium, aluminum, copper and tungsten targets. Using a sample of approximately 4000 $$\Xi^-_s \to \Lambda^0 \pi^-$$ decays, measurements of the charm baryon forward cross sections times branching ratio $$\pi^{\pm} N \to \Xi^+_c X$$ and $$\pi^{\pm}N\to \Xi^0_{c}X$$ are presented. Upper limits on $$\sigma$$ x BR are also determined for the states $$\Xi^+_c \to \Xi^{-}_s \pi^+ \pi^+$$ and $$ \Xi^0_c \to \Xi^-_s \pi^+$$produced in $$(p, \pi^+, \pi^-, K^+, K^+)$$-nucleon interactions. 11
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1423677
Report Number(s):
FERMILAB-THESIS-1995-10; UMI-95-31429; DOE-ER-40702-9; 404880
Country of Publication:
United States
Language:
English