In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2022, No. 7 ( 2022-07)
Kurzfassung:
Using e + e − annihilation data corresponding to a total integrated luminosity of 6 . 32 fb − 1 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 $$ {D}_s^{+} $$ D s + → K − K + π + π + π − and determine the relative fractions and phases of different intermediate processes. Absolute branching fraction of $$ {D}_s^{+} $$ D s + → K − K + π + π + π − decay is measured to be (6 . 60 ± 0 . 47 stat . ± 0 . 38 syst . ) × 10 − 3 . The dominant intermediate process is $$ {D}_s^{+} $$ D s + → a 1 (1260) + ϕ, ϕ → K − K + , a 1 (1260) + → ρπ + , ρ → π + π − , with a branching fraction of (5 . 15 ± 0 . 41 stat . ± 0 . 32 syst . ) × 10 − 3 .
Materialart:
Online-Ressource
ISSN:
1029-8479
DOI:
10.1007/JHEP07(2022)051
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2022
ZDB Id:
2027350-2
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