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We have investigated low energy excitations of a disk of electrons inhalf-filled Landau level using trail wave function and small-size exactdiagonalization approaches. We have constructed a set of many-body basis statesthat describe correctly the low energy excitations. In this theory a dropletconsists of two types of composite fermion liquids, and suggests that a dropletcan support an edge magnetoplasmon and low energy droplet excitations. Apossibility of measuring these excitations in a quantum dot is discussed.Comment: Figure1 is available from the authors upon request. Three eps files  are attached to the tex fil

EXCITATIONS OF A DROPLET OF ELECTRONS IN HALF-FILLED LANDAU LEVEL