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

BESIII Collaboration; M. Ablikim; M.N. Achasov; P. Adlarson; S. Ahmed; M. Albrecht; R. Aliberti; A. Amoroso; Nasser Kalantar-Nayestanaki; Rosa Kappert; Myroslav Kavatsyuk; Johan Messchendorp; Viktor Rodin

doi:10.1103/PhysRevD.104.032011

Amplitude analysis and branching fraction measurement of D⁺_s → K⁻K⁺π⁺π⁰

BESIII Collaboration, M. Ablikim, M.N. Achasov, P. Adlarson, S. Ahmed, M. Albrecht, R. Aliberti, A. Amoroso, Nasser Kalantar-Nayestanaki, Rosa Kappert, Myroslav Kavatsyuk, Johan Messchendorp, Viktor Rodin

Energy and Sustainability Research Institute Groningen

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Abstract

The first amplitude analysis of the decay D+s→K−K+π+π0 is presented using the data samples, corresponding to an integrated luminosity of 6.32 fb−1, collected with the BESIII detector at e+e− center-of-mass energies between 4.178 and 4.226 GeV. More than 3000 events selected with a purity of 97.5% are used to perform the amplitude analysis, and nine components are found necessary to describe the data. Relative fractions and phases of the intermediate decays are determined. With the detection efficiency estimated by the results of the amplitude analysis, the branching fraction of D+s→K−K+π+π0 decay is measured to be (5.42±0.10stat±0.17syst)%.

Original language	English
Article number	032011
Number of pages	20
Journal	Physical Review D
Volume	104
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.104.032011
Publication status	Published - 1-Aug-2021

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BESIII Collaboration, Ablikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., Amoroso, A., Kalantar-Nayestanaki, N., Kappert, R., Kavatsyuk, M., Messchendorp, J., & Rodin, V. (2021). Amplitude analysis and branching fraction measurement of D⁺_s → K⁻K⁺π⁺π⁰. Physical Review D, 104(3), Article 032011. https://doi.org/10.1103/PhysRevD.104.032011

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title = "Amplitude analysis and branching fraction measurement of D+s → K−K+π+π0",

abstract = "The first amplitude analysis of the decay D+s→K−K+π+π0 is presented using the data samples, corresponding to an integrated luminosity of 6.32 fb−1, collected with the BESIII detector at e+e− center-of-mass energies between 4.178 and 4.226 GeV. More than 3000 events selected with a purity of 97.5% are used to perform the amplitude analysis, and nine components are found necessary to describe the data. Relative fractions and phases of the intermediate decays are determined. With the detection efficiency estimated by the results of the amplitude analysis, the branching fraction of D+s→K−K+π+π0 decay is measured to be (5.42±0.10stat±0.17syst)%.",

author = "{BESIII Collaboration} and M. Ablikim and M.N. Achasov and P. Adlarson and S. Ahmed and M. Albrecht and R. Aliberti and A. Amoroso and Nasser Kalantar-Nayestanaki and Rosa Kappert and Myroslav Kavatsyuk and Johan Messchendorp and Viktor Rodin",

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T1 - Amplitude analysis and branching fraction measurement of D+s → K−K+π+π0

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M.N.

AU - Adlarson, P.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Aliberti, R.

AU - Amoroso, A.

AU - Kalantar-Nayestanaki, Nasser

AU - Kappert, Rosa

AU - Kavatsyuk, Myroslav

AU - Messchendorp, Johan

AU - Rodin, Viktor

PY - 2021/8/1

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N2 - The first amplitude analysis of the decay D+s→K−K+π+π0 is presented using the data samples, corresponding to an integrated luminosity of 6.32 fb−1, collected with the BESIII detector at e+e− center-of-mass energies between 4.178 and 4.226 GeV. More than 3000 events selected with a purity of 97.5% are used to perform the amplitude analysis, and nine components are found necessary to describe the data. Relative fractions and phases of the intermediate decays are determined. With the detection efficiency estimated by the results of the amplitude analysis, the branching fraction of D+s→K−K+π+π0 decay is measured to be (5.42±0.10stat±0.17syst)%.

AB - The first amplitude analysis of the decay D+s→K−K+π+π0 is presented using the data samples, corresponding to an integrated luminosity of 6.32 fb−1, collected with the BESIII detector at e+e− center-of-mass energies between 4.178 and 4.226 GeV. More than 3000 events selected with a purity of 97.5% are used to perform the amplitude analysis, and nine components are found necessary to describe the data. Relative fractions and phases of the intermediate decays are determined. With the detection efficiency estimated by the results of the amplitude analysis, the branching fraction of D+s→K−K+π+π0 decay is measured to be (5.42±0.10stat±0.17syst)%.

U2 - 10.1103/PhysRevD.104.032011

DO - 10.1103/PhysRevD.104.032011

M3 - Article

SN - 1550-7998

VL - 104

JO - Physical Review D

JF - Physical Review D

IS - 3

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