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Search for the Weak Decay of a Lightly Bound H Dibaryon
The KTeV Collaboration
We present results of a search for a neutral, six-quark, dibaryon state called the \h, a state predicted to exist in several theoretical models. Observation of such a state would s…
Observation of CP Violation in K(L)->pi+pi-e+e- Decays
KTeV Collaboration
We report the first observation of a manifestly CP violating effect in the K(L)->pi+pi-e+e- decay mode. A large asymmetry was observed in the distribution of these decays in the CP…
Observation of the Cabibbo-suppressed decay Xi_c+ -> p K- pi+
SELEX Collaboration, S. Y. Jun
We report the first observation of the Cabibbo-suppressed charm baryon decay Xi_c+ -> p K- pi+. We observe 150 +- 22 events for the signal. The data were accumulated using the SELE…
Measurement of the branching ratio of pi^0 -> e^+e^- using K_L -> 3 pi^0 decays in flight
KTeV Collaboration
The branching ratio of the rare decay pi^0 -> e^+e^- has been measured in E799-II, a rare kaon decay experiment using the KTeV detector at Fermilab. The pi^0's were produced in ful…
Measurement of the Decay KL -> Pi0 Gamma Gamma
A. Alavi-Harati et. al, the KTeV Collaboration
We report on a new measurement of the decay KL -> pi0 gamma gamma by the KTeV experiment at Fermilab. We determine the KL -> pi0 gamma gamma branching ratio to be (1.68 +/- 0.07 +/…