Decays of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si21.svg"> <mml:mrow> <mml:mstyle mathvariant="normal"> <mml:mi>Υ</mml:mi> </mml:mstyle> <mml:mo>(</mml:mo> <mml:mn>10860</mml:mn> <mml:mo>)</mml:mo> </mml:mrow> </mml:math> a

In this paper, we model Υ ( 10753 ) as a 4 S − 3 D bottomonium mixture and Υ ( 10860 ) as a 5 S − 4 D mixture, and predict the properties of a new bottomonium state, Υ ( 10950 ) , as the mixing partner of Υ ( 10860 ) . The mixing angles are derived from dielectron decay widths and mass shifts of these bottomonia. We consider open-bottom meson loops in the decays of the D -wave bottomonium components, based on a nonrelativistic effective field theory power counting. We show that the S − D mixing scheme is consistent with the experimental data of the decays of Υ ( 10860 ) into ω χ b J ( J = 0 , 1 , 2 ) and Υ ( 10753 ) into ω χ b J ( J = 1 , 2 ). Predictions for the dielectron widths and partial decay widths into χ b J ω for Υ ( 10753 ) and Υ ( 10950 ) are presented.