NLO QCD corrections to &eta;c+hc(1P)/&psi;1,2(1D) production at B-factories

CHEN Long-Bin; JIANG Jun; QIAO Cong-Feng

doi:10.1088/1674-1137/39/10/103101

Chinese Physics C> 2015, Vol. 39> Issue(10) : 103101 DOI: 10.1088/1674-1137/39/10/103101

NLO QCD corrections to η_c+h_c(1P)/ψ_1,2(1D) production at B-factories

CHEN Long-Bin ^1,2,, ,
JIANG Jun ^1,, ,
QIAO Cong-Feng ^1,2,,

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We calculate the next-to-leading order (NLO) quantum chromodynamics (QCD) corrections to double charmonium production processes e⁺e^- → γ^* →η_c+h_c(1P)=ψ_1,2(1D) within the non-relativistic QCD (NRQCD) factorization framework. We find that the corrections to η_c+h_c(1P) production are positive, while those to η_c+ψ_1,2(1D) are negative. Unlike the J/ψ+η_c case, all the corrections here are not large. Uncertainties in the renormalization scale, quark mass and running energy of center-of-mass are discussed, and the scale dependence of these processes is found to be greatly reduced with the NLO QCD corrections.

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CHEN Long-Bin, JIANG Jun and QIAO Cong-Feng. NLO QCD corrections to η_c+h_c(1P)/ψ_1,2(1D) production at B-factories[J]. Chinese Physics C, 2015, 39(10): 103101. doi: 10.1088/1674-1137/39/10/103101

CHEN Long-Bin, JIANG Jun and QIAO Cong-Feng. NLO QCD corrections to η_c+h_c(1P)/ψ_1,2(1D) production at B-factories[J]. Chinese Physics C, 2015, 39(10): 103101. doi: 10.1088/1674-1137/39/10/103101 shu

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Received: 2015-10-21
Revised: 1900-01-01

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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

NLO QCD corrections to η_c+h_c(1P)/ψ_1,2(1D) production at B-factories

Corresponding author: CHEN Long-Bin,

Corresponding author: JIANG Jun,

Corresponding author: QIAO Cong-Feng,

Received Date: 2015-10-21

Accepted Date: 1900-01-01

Available Online: 2015-10-10

Abstract: We calculate the next-to-leading order (NLO) quantum chromodynamics (QCD) corrections to double charmonium production processes e⁺e^- → γ^* →η_c+h_c(1P)=ψ_1,2(1D) within the non-relativistic QCD (NRQCD) factorization framework. We find that the corrections to η_c+h_c(1P) production are positive, while those to η_c+ψ_1,2(1D) are negative. Unlike the J/ψ+η_c case, all the corrections here are not large. Uncertainties in the renormalization scale, quark mass and running energy of center-of-mass are discussed, and the scale dependence of these processes is found to be greatly reduced with the NLO QCD corrections.

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NLO QCD corrections to η_c+h_c(1P)/ψ_1,2(1D) production at B-factories

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NLO QCD corrections to η_c+h_c(1P)/ψ_1,2(1D) production at B-factories

Corresponding author: CHEN Long-Bin,

Corresponding author: JIANG Jun,

Corresponding author: QIAO Cong-Feng,

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