Amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays

M. Ablikim; M. N. Achasov; X. C. Ai; O. Albayrak; M. Albrecht; D. J. Ambrose; A. Amoroso; O. Bondarenko; Z. Haddadi; N. Kalantar-Nayestanaki; M. Kavatsyuk; H. Loehner; J. G. Messchendorp; M. Tiemens

doi:10.1103/PhysRevD.92.052003

Amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays

M. Ablikim, M. N. Achasov, X. C. Ai, O. Albayrak, M. Albrecht, D. J. Ambrose, A. Amoroso, O. Bondarenko, Z. Haddadi, N. Kalantar-Nayestanaki, M. Kavatsyuk, H. Loehner, J. G. Messchendorp, M. Tiemens

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Abstract

An amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays is presented. In particular, a piecewise function that describes the dynamics of the pi(0)pi(0) system is determined as a function of M pi(0)pi(0) from an analysis of the (1.311 +/- 0.011) x 10(9) J/psi decays collected by the BESIII detector. The goal of this analysis is to provide a description of the scalar and tensor components of the pi(0)pi(0) system while making minimal assumptions about the properties or number of poles in the amplitude. Such a model-independent description allows one to integrate these results with other related results from complementary reactions in the development of phenomenological models, which can then be used to directly fit experimental data to obtain parameters of interest. The branching fraction of J/psi -> pi(0)pi(0) is determined to be (1.15 +/- 0.05) x 10(-3), where the uncertainty is systematic only and the statistical uncertainty is negligible.

Original language	English
Article number	052003
Number of pages	18
Journal	Physical Review D
Volume	92
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.92.052003
Publication status	Published - 14-Sept-2015

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Ablikim, M., Achasov, M. N., Ai, X. C., Albayrak, O., Albrecht, M., Ambrose, D. J., Amoroso, A., Bondarenko, O., Haddadi, Z., Kalantar-Nayestanaki, N., Kavatsyuk, M., Loehner, H., Messchendorp, J. G., & Tiemens, M. (2015). Amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays. Physical Review D, 92(5), Article 052003. https://doi.org/10.1103/PhysRevD.92.052003

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title = "Amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays",

abstract = "An amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays is presented. In particular, a piecewise function that describes the dynamics of the pi(0)pi(0) system is determined as a function of M pi(0)pi(0) from an analysis of the (1.311 +/- 0.011) x 10(9) J/psi decays collected by the BESIII detector. The goal of this analysis is to provide a description of the scalar and tensor components of the pi(0)pi(0) system while making minimal assumptions about the properties or number of poles in the amplitude. Such a model-independent description allows one to integrate these results with other related results from complementary reactions in the development of phenomenological models, which can then be used to directly fit experimental data to obtain parameters of interest. The branching fraction of J/psi -> pi(0)pi(0) is determined to be (1.15 +/- 0.05) x 10(-3), where the uncertainty is systematic only and the statistical uncertainty is negligible.",

author = "M. Ablikim and Achasov, {M. N.} and Ai, {X. C.} and O. Albayrak and M. Albrecht and Ambrose, {D. J.} and A. Amoroso and O. Bondarenko and Z. Haddadi and N. Kalantar-Nayestanaki and M. Kavatsyuk and H. Loehner and Messchendorp, {J. G.} and M. Tiemens",

year = "2015",

month = sep,

day = "14",

doi = "10.1103/PhysRevD.92.052003",

language = "English",

volume = "92",

journal = "Physical Review D",

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publisher = "AMER PHYSICAL SOC",

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T1 - Amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ai, X. C.

AU - Albayrak, O.

AU - Albrecht, M.

AU - Ambrose, D. J.

AU - Amoroso, A.

AU - Bondarenko, O.

AU - Haddadi, Z.

AU - Kalantar-Nayestanaki, N.

AU - Kavatsyuk, M.

AU - Loehner, H.

AU - Messchendorp, J. G.

AU - Tiemens, M.

PY - 2015/9/14

Y1 - 2015/9/14

N2 - An amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays is presented. In particular, a piecewise function that describes the dynamics of the pi(0)pi(0) system is determined as a function of M pi(0)pi(0) from an analysis of the (1.311 +/- 0.011) x 10(9) J/psi decays collected by the BESIII detector. The goal of this analysis is to provide a description of the scalar and tensor components of the pi(0)pi(0) system while making minimal assumptions about the properties or number of poles in the amplitude. Such a model-independent description allows one to integrate these results with other related results from complementary reactions in the development of phenomenological models, which can then be used to directly fit experimental data to obtain parameters of interest. The branching fraction of J/psi -> pi(0)pi(0) is determined to be (1.15 +/- 0.05) x 10(-3), where the uncertainty is systematic only and the statistical uncertainty is negligible.

AB - An amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays is presented. In particular, a piecewise function that describes the dynamics of the pi(0)pi(0) system is determined as a function of M pi(0)pi(0) from an analysis of the (1.311 +/- 0.011) x 10(9) J/psi decays collected by the BESIII detector. The goal of this analysis is to provide a description of the scalar and tensor components of the pi(0)pi(0) system while making minimal assumptions about the properties or number of poles in the amplitude. Such a model-independent description allows one to integrate these results with other related results from complementary reactions in the development of phenomenological models, which can then be used to directly fit experimental data to obtain parameters of interest. The branching fraction of J/psi -> pi(0)pi(0) is determined to be (1.15 +/- 0.05) x 10(-3), where the uncertainty is systematic only and the statistical uncertainty is negligible.

U2 - 10.1103/PhysRevD.92.052003

DO - 10.1103/PhysRevD.92.052003

M3 - Article

SN - 1550-7998

VL - 92

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 052003

ER -

Amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays

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