Measurement of charm and beauty photoproduction at HERA using <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msup><mml:mi>D</mml:mi><mml:mo>*</mml:mo></mml:msup><mml:mi>μ</mml:mi></mml:math> correlations
Physics letters. B