Space- and time-like kaon electromagnetic form factors in perturbative QCD

JIN Dan; YANG Ya-Dong

doi:10.1088/1674-1137/36/10/004

Chinese Physics C> 2012, Vol. 36> Issue(10) : 941-946 DOI: 10.1088/1674-1137/36/10/004

Space- and time-like kaon electromagnetic form factors in perturbative QCD

JIN Dan ^, ,
YANG Ya-Dong ^,

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Abstract：
We present a phenomenological analysis of the space- and time-like charged kaon electromagnetic form factors in factorized perturbative QCD (pQCD) by employing an analytic model for α_s(Q²) and an infrared (IR) finite gluon propagator. In the space-like region, due to the lack of available experimental data above Q²～0.2 GeV², we only give our results for intermediate energies and make no comparison. In the time-like region, our results agree reasonably well with the available experimental data at moderate energies, including the CLEO data and the m J/ψ result.

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JIN Dan and YANG Ya-Dong. Space- and time-like kaon electromagnetic form factors in perturbative QCD[J]. Chinese Physics C, 2012, 36(10): 941-946. doi: 10.1088/1674-1137/36/10/004

JIN Dan and YANG Ya-Dong. Space- and time-like kaon electromagnetic form factors in perturbative QCD[J]. Chinese Physics C, 2012, 36(10): 941-946. doi: 10.1088/1674-1137/36/10/004 shu

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Received: 2012-01-20
Revised: 2012-02-25

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Space- and time-like kaon electromagnetic form factors in perturbative QCD

Corresponding author: JIN Dan,

Corresponding author: YANG Ya-Dong,

Received Date: 2012-01-20

Accepted Date: 2012-02-25

Available Online: 2012-10-05

Abstract: We present a phenomenological analysis of the space- and time-like charged kaon electromagnetic form factors in factorized perturbative QCD (pQCD) by employing an analytic model for α_s(Q²) and an infrared (IR) finite gluon propagator. In the space-like region, due to the lack of available experimental data above Q²～0.2 GeV², we only give our results for intermediate energies and make no comparison. In the time-like region, our results agree reasonably well with the available experimental data at moderate energies, including the CLEO data and the m J/ψ result.

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Space- and time-like kaon electromagnetic form factors in perturbative QCD

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