Amplitude analysis and branching fraction measurement of the decay $$ {D}_s^{+} $$ → K+π+π−
Amplitude analysis and branching fraction measurement of the decay $$ {D}_s^{+} $$ → K+π+π−
A bstract Using 6 . 32 fb − 1 of e + e − collision data collected at the center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform an amplitude analysis of the decay $$ {D}_s^{+} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> </mml:math> → …