A CLEAR TEST OF α<SUB>s</SUB> IN QCD AT ISR ENERGIES

LUO Ma; KONG Fan-Mei; LIU Hao-Ran

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2024年10月30日

Chinese Physics C> 1985, Vol. 9> Issue(6) : 669-678

A CLEAR TEST OF α_s IN QCD AT ISR ENERGIES

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Abstract：
We calculate the cross-section differences:
(a) dσ(pp→Jet_大PT+γ_大PT+X)-dσ(pp→Jet_大PT+γ_大PT+X)
(b) dσ(pp→2_^γ大PT+X)-dσ(pp→2_^γ大PT+X)
(c) dσ(K^-p→Jet_大PT+γ_大PT+X)-dσ(K⁺p→Jet_大PT+γ_大PT+X)
(d) dσ(K^-p→2γ_大PT+X)-dσ(K⁺p→2_γ大PT+X)
(e) dσ(pp→2Jet_大PT+X)-dσ(pp→2Jet_大PT+X)
and find that they are not affected by gluon and sea-quark distribution functions and various fragmentation functions. Comparing these results with the corresponding expe rimental data, one can accurately determine the ratio α_s/α under the present experimental conditions.

References

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[3]	YUAN Chang-Zheng (for the Belle Collaboration) . Study of charmonium(-like) states via ISR at Belle. Chinese Physics C, 2008, 32(6): 452-454. doi: 10.1088/1674-1137/32/6/010
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LUO Ma, KONG Fan-Mei and LIU Hao-Ran. A CLEAR TEST OF α_s IN QCD AT ISR ENERGIES[J]. Chinese Physics C, 1985, 9(6): 669-678.

LUO Ma, KONG Fan-Mei and LIU Hao-Ran. A CLEAR TEST OF α_s IN QCD AT ISR ENERGIES[J]. Chinese Physics C, 1985, 9(6): 669-678. shu

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Received: 1900-01-01
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

A CLEAR TEST OF α_s IN QCD AT ISR ENERGIES

Corresponding author: LUO Ma,

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1985-12-05

Abstract:

We calculate the cross-section differences:
(a) dσ(pp→Jet_大PT+γ_大PT+X)-dσ(pp→Jet_大PT+γ_大PT+X)
(b) dσ(pp→2_^γ大PT+X)-dσ(pp→2_^γ大PT+X)
(c) dσ(K^-p→Jet_大PT+γ_大PT+X)-dσ(K⁺p→Jet_大PT+γ_大PT+X)
(d) dσ(K^-p→2γ_大PT+X)-dσ(K⁺p→2_γ大PT+X)
(e) dσ(pp→2Jet_大PT+X)-dσ(pp→2Jet_大PT+X)
and find that they are not affected by gluon and sea-quark distribution functions and various fragmentation functions. Comparing these results with the corresponding expe rimental data, one can accurately determine the ratio α_s/α under the present experimental conditions.