The singly Cabibbo-suppressed decay Ds -> K+pi(+)pi(-)pi(0) is observed by using a data set corresponding to an integrated luminosity of 6.32 fb(-1) recorded by the BESIII detector at the centre-of-mass energies between 4.178 and 4.226 GeV. The first amplitude analysis of Ds+-> K+pi(+)pi(-)pi(0) reveals the sub-structures in this decay and determines the fractions and relative phases of different intermediate processes. The dominant intermediate process is Ds+ -> K-*0 rho(+), with a fit fraction of (40.5 +/- 2.8(stat.) +/- 1.5(syst.))%. With the detection efficiency based on our amplitude analysis, the absolute branching fraction for Ds+-> K+pi(+)pi(-)pi(0) is measured to be (9.75 +/- 0.54(stat.)+/- 0.17(syst.)) x 10(-3).

Amplitude analysis and branching fraction measurement of the decay D+s → K+π+π−π0

A. Amoroso;F. Bianchi;A. Bortone;M. Destefanis;F. De Mori;M. Greco;L. Lavezzi;M. Maggiora;S. Marcello;S. Sosio;S. Spataro;
2022-01-01

Abstract

The singly Cabibbo-suppressed decay Ds -> K+pi(+)pi(-)pi(0) is observed by using a data set corresponding to an integrated luminosity of 6.32 fb(-1) recorded by the BESIII detector at the centre-of-mass energies between 4.178 and 4.226 GeV. The first amplitude analysis of Ds+-> K+pi(+)pi(-)pi(0) reveals the sub-structures in this decay and determines the fractions and relative phases of different intermediate processes. The dominant intermediate process is Ds+ -> K-*0 rho(+), with a fit fraction of (40.5 +/- 2.8(stat.) +/- 1.5(syst.))%. With the detection efficiency based on our amplitude analysis, the absolute branching fraction for Ds+-> K+pi(+)pi(-)pi(0) is measured to be (9.75 +/- 0.54(stat.)+/- 0.17(syst.)) x 10(-3).
2022
2022
9
1
32
Charm Physics; e(+)-e(-) Experiments; Particle and Resonance Production
M. Ablikim; M. N. Achasov; P. Adlarson; M. Albrecht; R. Aliberti; A. Amoroso; M. R. An; Q. An; X. H. Bai; Y. Bai; O. Bakina; R. Baldini Ferroli; I. Ba...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1887566
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