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Amplitude analysis and branching fraction measurement of the decay D+ → $$ {\textrm{K}}_{\textrm{S}}^0 $$π+π0π0. / The BESIII Collaboration ; Мучной, Николай Юрьевич; Николаев, Иван Борисович.
в: Journal of High Energy Physics, Том 2023, № 9, 77, 12.09.2023.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Amplitude analysis and branching fraction measurement of the decay D+ → $$ {\textrm{K}}_{\textrm{S}}^0 $$π+π0π0
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. n.
AU - Мучной, Николай Юрьевич
AU - Николаев, Иван Борисович
PY - 2023/9/12
Y1 - 2023/9/12
N2 - Using 2.93 fb−1 of e+e− collision data collected with the BESIII detector at the center-of-mass energy 3.773 GeV, we perform the first amplitude analysis of the decay D+ → π+π0π0 and determine the relative magnitudes and phases of different intermediate processes. The absolute branching fraction of D+ → π+π0π0 is measured to be (2.888 ± 0.058stat. ± 0.069syst.)%. The dominant intermediate processes are D+ → a1(1260)+(→ ρ+π0) and D+ → *0ρ+, with branching fractions of (8.66 ± 1.04stat. ± 1.39syst.) × 10−3 and (9.70 ± 0.81stat. ± 0.53syst.) × 10−3, respectively.
AB - Using 2.93 fb−1 of e+e− collision data collected with the BESIII detector at the center-of-mass energy 3.773 GeV, we perform the first amplitude analysis of the decay D+ → π+π0π0 and determine the relative magnitudes and phases of different intermediate processes. The absolute branching fraction of D+ → π+π0π0 is measured to be (2.888 ± 0.058stat. ± 0.069syst.)%. The dominant intermediate processes are D+ → a1(1260)+(→ ρ+π0) and D+ → *0ρ+, with branching fractions of (8.66 ± 1.04stat. ± 1.39syst.) × 10−3 and (9.70 ± 0.81stat. ± 0.53syst.) × 10−3, respectively.
U2 - 10.1007/JHEP09(2023)077
DO - 10.1007/JHEP09(2023)077
M3 - Article
VL - 2023
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1029-8479
IS - 9
M1 - 77
ER -
ID: 68346307