Measurement of absolute branching fractions of $$ {\textrm{D}}_{\textrm{s}}^{+} $$ hadronic decays
Branching (polymer chemistry)
Absolute (philosophy)
Branching fraction
DOI:
10.1007/jhep05(2024)335
Publication Date:
2024-06-03T02:01:23Z
AUTHORS (657)
ABSTRACT
A bstract Using e + − collision data collected at the BESIII detector center-of-mass energies between 4.128 and 4.226 GeV, corresponding to an integrated luminosity of 7 . 33 fb 1 , we determine absolute branching fractions fifteen hadronic $$ {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> decays with a double-tag technique. In particular, make precise measurements \mathcal{B}\left({D}_s^{+}\to {K}^{+}{K}^{-}{\pi}^{+}\right)=\left(5.49\pm 0.04\pm 0.07\right)\% <mml:mi>B</mml:mi> <mml:mfenced> <mml:mrow> <mml:mo>→</mml:mo> <mml:msup> <mml:mi>K</mml:mi> </mml:msup> <mml:mo>−</mml:mo> <mml:mi>π</mml:mi> </mml:mrow> </mml:mfenced> <mml:mo>=</mml:mo> <mml:mn>5.49</mml:mn> <mml:mo>±</mml:mo> <mml:mn>0.04</mml:mn> <mml:mn>0.07</mml:mn> <mml:mo>%</mml:mo> {K}_S^0{K}^{+}\right)=\left(1.50\pm 0.01\pm 0.01\right)\% <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> <mml:mn>1.50</mml:mn> <mml:mn>0.01</mml:mn> {K}^{+}{K}^{-}{\pi}^{+}{\pi}^0\right)=\left(5.50\pm 0.05\pm 0.11\right)\% <mml:mn>5.50</mml:mn> <mml:mn>0.05</mml:mn> <mml:mn>0.11</mml:mn> where first uncertainties are statistical second ones systematic. The CP asymmetries in these also measured all found be compatible zero.
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