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Test a perturbative QCD prediction with e+e-→D*+D*-

  • Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

Funds:  Supported by National Natural Science Foundation of China (10935008).
Cite this:
https://doi.org/10.3969/j.issn.0253-2778.2014.03.008
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  • Author Bio:

    GUO Han, male, born in 1982, PhD candidate. Research field: Experimental particle physics. E-mail: guohan@mail.ustc.edu.cn

  • Corresponding author: ZHANG Ziping
  • Received Date: 18 March 2013
  • Accepted Date: 27 September 2013
  • Rev Recd Date: 27 September 2013
  • Publish Date: 30 March 2014
    Abstract

  • Abstract

    The differential cross section for e+e-→D*+D*- process was calculated in terms of the electromagnetic form factors of D* meson. After putting in the ratios of form factors predicted by perturbative QCD (quantum chromodynamics), the angular distribution obtained was found to be inconsistent with experimental measurement at s=1058 GeV.

    Abstract

    The differential cross section for e+e-→D*+D*- process was calculated in terms of the electromagnetic form factors of D* meson. After putting in the ratios of form factors predicted by perturbative QCD (quantum chromodynamics), the angular distribution obtained was found to be inconsistent with experimental measurement at s=1058 GeV.
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    • References(11)
  • [1]
    Brodsky S, Lepage G. Helicity selection rules and tests of gluon spin in exclusive QCD processes[J]. Phys Rev D, 1981, 24: 2 848-2 855.
    [2]
    Chernyak V, Zhitnitsky A. Asymptotic behaviour of exclusive processes in QCD[J]. Physics Reports, 1984, 112: 173-318.
    [3]
    Chernyak V. J/ψ thoery review, or from J→ψ[DB/OL]. arXiv: hep-ph/9906387.
    [4]
    Durand L. Inelastic electron-deuteron scattering cross sections at high energies: Ⅱ, final-state interactions and relativistic corrections[J]. Phys Rev, 1961, 123: 1 393-1 422.
    [5]
    Jones H. Dispersion theory of the deuteron form factor and elastic e-d scattering[J]. Nuovo Cimento, 1962, 26: 790-802.
    [6]
    Arnold R, Carlson C, Gross F. Elastic electron-deuteron scattering at high energy[J]. Phys Rev C, 1980, 21: 1 426-1 451.
    [7]
    Brodsky S, Hiller J. Universal properties of the electromagnetic interactions of spin-one systems[J]. Phys Rev D, 1992, 46: 2 141-2 149.
    [8]
    Lepage G, Brodsky S. Exclusive processes in perturbative quantum chromodynamics[J]. Phys Rev D, 1980, 22: 2 157-2 198.
    [9]
    Uglov T, et al (BELLE Collaboration). Measurement of the e+e-→D(*)+D(*)- cross sections[J]. Phys Rev D, 2004, 70: 071102.
    [10]
    Aubert B, et al (BABAR Collaboration). Observation of e+e-→ρ+ρ- near s=1058 GeV[J]. Phys Rev D, 2008, 78: 071103.
    [11]
    Carlson C, Ji C R. Angular conditions, relations between the Breit and light-front frames, and subleading power corrections[J]. Phys Rev D, 2003, 67: 116002.
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    [1]
    Brodsky S, Lepage G. Helicity selection rules and tests of gluon spin in exclusive QCD processes[J]. Phys Rev D, 1981, 24: 2 848-2 855.
    [2]
    Chernyak V, Zhitnitsky A. Asymptotic behaviour of exclusive processes in QCD[J]. Physics Reports, 1984, 112: 173-318.
    [3]
    Chernyak V. J/ψ thoery review, or from J→ψ[DB/OL]. arXiv: hep-ph/9906387.
    [4]
    Durand L. Inelastic electron-deuteron scattering cross sections at high energies: Ⅱ, final-state interactions and relativistic corrections[J]. Phys Rev, 1961, 123: 1 393-1 422.
    [5]
    Jones H. Dispersion theory of the deuteron form factor and elastic e-d scattering[J]. Nuovo Cimento, 1962, 26: 790-802.
    [6]
    Arnold R, Carlson C, Gross F. Elastic electron-deuteron scattering at high energy[J]. Phys Rev C, 1980, 21: 1 426-1 451.
    [7]
    Brodsky S, Hiller J. Universal properties of the electromagnetic interactions of spin-one systems[J]. Phys Rev D, 1992, 46: 2 141-2 149.
    [8]
    Lepage G, Brodsky S. Exclusive processes in perturbative quantum chromodynamics[J]. Phys Rev D, 1980, 22: 2 157-2 198.
    [9]
    Uglov T, et al (BELLE Collaboration). Measurement of the e+e-→D(*)+D(*)- cross sections[J]. Phys Rev D, 2004, 70: 071102.
    [10]
    Aubert B, et al (BABAR Collaboration). Observation of e+e-→ρ+ρ- near s=1058 GeV[J]. Phys Rev D, 2008, 78: 071103.
    [11]
    Carlson C, Ji C R. Angular conditions, relations between the Breit and light-front frames, and subleading power corrections[J]. Phys Rev D, 2003, 67: 116002.
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