"Assessment of <mml:math xmlns:mml=""http://www.w3.org/1998/Math/MathML"" display=""inline""><mml:mi>ϒ</mml:mi></mml:math>-states above <mml:math xmlns:mml=""http://www.w3.org/1998/Math/MathML"" display=""inline""><mml:mi>B</mml:mi><mml:mover accent=""true""><mml:mi>B</mml:mi><mml:mo stretchy=""false"">¯</mml:mo></mml:mover></mml:math>-threshold using a constituent-quark-model based meson-meson coupled-c"