Measurement of Branching Ratios of $D^+$ and $$D^+_s$$ Hadronic Decays to Four-Body Final States Containing a $$K^0_S$$
- Korea Univ., Seoul (South Korea)
We have studied hadronic four-body de ays of $D^+$ and $$D^+_s$$ mesons with a $$K^0_S$$ in the final state using data recorded during the 1996-1997 fixed- target run at Fermilab high energy photoproduction experiment FOCUS.We report a new branching ratio of $$\Gamma(D^+ \to K^0_S K^- \pi^+\pi^+$$)/$$\Gamma$$($$D^+ \to K^0_S \pi^+\pi^+ \pi^-$$) = 0.0768 $$\pm$$ 0.0041 $$\pm$$ 0.0032. We make the first observation of three new decay modes with branching ratios of the $$\Gamma(D^+ \to K^0_S K^+ \pi^+\pi^-$$)/$$\Gamma(D^+ \to K^0_S \pi^+\pi^+\pi^-$$) = 0.05620 $$\pm$$ 0.0039 $$\pm$$ 0.0040, $$\Gamma(D^+ \to K^0_S K^+K^-\pi^+$$)/$$\Gamma(D^+ \to K^0_S \pi^+\pi^+\pi^-$$) = 0.0077 $$\pm$$ 0.0015 $$\pm$$ 0.0009 and $$\Gamma(D^+_s \to K^0_S K^+\pi^+\pi^-$$)/$$\Gamma(D^+_s \to K^0_S K^- \pi^+\pi^+$$) = 0.5860 $$\pm$$ 0.052 $$\pm$$ 0.043, where in each case the first error is statistical and the second error is systematic .
- 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:
- 1371858
- Report Number(s):
- FERMILAB-THESIS--2001-33; 579215
- Country of Publication:
- United States
- Language:
- English
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