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Observation of Thirteen New Exclusive Multibody Hadronic Decays of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>2</mml:mn><mml:mi>S</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math>
Using data accumulated with the CLEO detector corresponding to an integrated luminosity of L=5.63 pb−1 on the peak of the ψ(2S) [3.08×106 ψ(2S) decays] and 20.70 pb−1 at √s=3.67 GeV, we report first measurements of the branching fractions for the following 13 decay modes of the ψ(2S): η3π, η′3π, ρK+K−, …