O(&alpha;sv2) correction to J/&psi; plus &eta;c production in e+e- annihilation at s=10.6 Gev

LI Xi-Huai; WANG Jian-Xiong

doi:10.1088/1674-1137/38/4/043101

Chinese Physics C> 2014, Vol. 38> Issue(4) : 043101 DOI: 10.1088/1674-1137/38/4/043101

O(α_sv2) correction to J/ψ plus η_c production in e⁺e^- annihilation at s=10.6 Gev

LI Xi-Huai ^1,, ,
WANG Jian-Xiong ^2,,

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Abstract：
Based on the nonrelativistic QCD factorization approach, O(α_sv2) corrections to J/ψ plus η_c production in m e⁺e^- annihilation at √s=10.6 ≥v are calculated in this work. The numerical results show that the correction at α_sv2 order is only about a few percent of the total theoretical result. This indicates that the perturbative expansions become convergent and that a higher order correction will be smaller. The uncertainties from the long-distance matrix elements, renormalization scale and the measurement in the experiment are also discussed. Our result is in agreement with the previous result by Jia.

References

[1]

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LI Xi-Huai and WANG Jian-Xiong. O(α_sv2) correction to J/ψ plus η_c production in e⁺e^- annihilation at s=10.6 Gev[J]. Chinese Physics C, 2014, 38(4): 043101. doi: 10.1088/1674-1137/38/4/043101

LI Xi-Huai and WANG Jian-Xiong. O(α_sv2) correction to J/ψ plus η_c production in e⁺e^- annihilation at s=10.6 Gev[J]. Chinese Physics C, 2014, 38(4): 043101. doi: 10.1088/1674-1137/38/4/043101 shu

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Received: 2013-04-15
Revised: 2013-11-12

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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

O(α_sv2) correction to J/ψ plus η_c production in e⁺e^- annihilation at s=10.6 Gev

Corresponding author: LI Xi-Huai,

Corresponding author: WANG Jian-Xiong,

Received Date: 2013-04-15

Accepted Date: 2013-11-12

Available Online: 2014-04-05

Abstract: Based on the nonrelativistic QCD factorization approach, O(α_sv2) corrections to J/ψ plus η_c production in m e⁺e^- annihilation at √s=10.6 ≥v are calculated in this work. The numerical results show that the correction at α_sv2 order is only about a few percent of the total theoretical result. This indicates that the perturbative expansions become convergent and that a higher order correction will be smaller. The uncertainties from the long-distance matrix elements, renormalization scale and the measurement in the experiment are also discussed. Our result is in agreement with the previous result by Jia.

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O(α_sv2) correction to J/ψ plus η_c production in e⁺e^- annihilation at s=10.6 Gev

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O(α_sv2) correction to J/ψ plus η_c production in e⁺e^- annihilation at s=10.6 Gev

Corresponding author: LI Xi-Huai,

Corresponding author: WANG Jian-Xiong,

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