In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2022, No. 8 ( 2022-08-19)
Abstract:
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 $$ {D}_s^{+} $$ D s + → K + π + π − and determine the amplitudes of the various intermediate states. The absolute branching fraction of $$ {D}_s^{+} $$ D s + → K + π + π − is measured to be (6 . 11 ± 0 . 18 stat . ± 0 . 11 syst . ) × 10 − 3 . The branching fractions of the dominant intermediate processes $$ {D}_s^{+} $$ D s + → K + ρ 0 , ρ 0 → π + π − and $$ {D}_s^{+} $$ D s + → K * (892) 0 π + , K * (892) 0 → K + π − are determined to be (1 . 96 ± 0 . 19 stat . ± 0 . 23 syst . ) × 10 − 3 and (1 . 85 ± 0 . 12 stat . ± 0 . 13 syst . ) × 10 − 3 , respectively. The intermediate resonances f 0 (500), f 0 (980), and f 0 (1370) are observed for the first time in this channel.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP08(2022)196
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2022
detail.hit.zdb_id:
2027350-2
Permalink