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Study of the decays <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>D</mml:mi><mml:mi>s</mml:mi><mml:mo>+</mml:mo></mml:msubsup><mml:mo stretchy="false">→</mml:mo><mml:msubsup><mml:mi>K</mml:mi><mml:mi>S</mml:mi><mml:mn>0</mml:mn></mml:msubsup><mml:msup><mml:mi>K</mml:mi><mml:mo>+</mml:mo></mml:msup></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>K</mml:mi><mml:mi>L</mml:mi><mml:mn>0</…
Using an e+e− annihilation data sample corresponding to an integrated luminosity of 3.19 fb−1 and collected at a center-of-mass energy √s=4.178 GeV with the BESIII detector, we measure the absolute branching fractions B(D+s→K0SK+)=(1.425±0.038stat.±0.031syst.)% and B(D+s→K0LK+)=(1.485±0.039stat.±0.046syst.)%. The branching fraction of D+s→K0SK+ is compatible with the world average and that of D+s→K0LK+ …