TESTING GLUON DISTRIBUTION FUNCTION OF HADRONS IN LARGE PT PROCESS WITH DIRECT PHOTON EMISSION

  • In this paper we disscuse disscuse the physicsical aspect of cross-section differences ΔAB=(ABcγX)-(ABcγX) and give the simple rules to select the elementary subprocesses which contribute to cross-section differences.
    We bind a way to test the gluon distribution functions of hadrons through the measurement of cross-section difference or combination of cross-section differences in the large PT process with direct photon emission. Moreover we obtain simple relations between each combination of cross-sections and the corresponding gluon distribution functions of proton, neutron, pion and daon:
    Gp8(x)/(Δpp-Δpp)=Gn8(x)/(Δpp)=Gπ8(x)/(Δπ+pπ-p=GK8(x)/(ΔK+pK-p)which are expected to be test in experiment.
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  • [1] Kwang Sup Soh et al., Phys. Rev., D18(1978), 751.[2] M. Anselmino and E. Leader, Z. Phys., C18(1983), 307.[3] M. Fontamaz, A. Mantrch, B. Pire and D. Schiff, Phys. Lett., 89B (19801, 263.[4] D. I. Sivers, R. Blankenbecher and S. J. Brodsky, Phys. Reports, 23 (1976), 1.[5] B. L. Combridge, Nucl. Phys., B174 (1980), 243.[6] R. Baier, J. Engels and B. Petesson, Z. Physik, C2 (1979), 265; J. G. H. de Groot et al., Phys. Lett., 82B ( 1979), 456.[7] J. G. McEwen et al., Prenrint CERN/EP 82--151 (1982).[8] H. Abramowicz et al., Preprint CERN/EP 82-210 (1982).
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KONG Fan-Mei, LUO Ma and LIU Hao-Ran. TESTING GLUON DISTRIBUTION FUNCTION OF HADRONS IN LARGE PT PROCESS WITH DIRECT PHOTON EMISSION[J]. Chinese Physics C, 1985, 9(5): 546-554.
KONG Fan-Mei, LUO Ma and LIU Hao-Ran. TESTING GLUON DISTRIBUTION FUNCTION OF HADRONS IN LARGE PT PROCESS WITH DIRECT PHOTON EMISSION[J]. Chinese Physics C, 1985, 9(5): 546-554. shu
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Received: 1900-01-01
Revised: 1900-01-01
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TESTING GLUON DISTRIBUTION FUNCTION OF HADRONS IN LARGE PT PROCESS WITH DIRECT PHOTON EMISSION

    Corresponding author: KONG Fan-Mei,

Abstract: In this paper we disscuse disscuse the physicsical aspect of cross-section differences ΔAB=(ABcγX)-(ABcγX) and give the simple rules to select the elementary subprocesses which contribute to cross-section differences.
We bind a way to test the gluon distribution functions of hadrons through the measurement of cross-section difference or combination of cross-section differences in the large PT process with direct photon emission. Moreover we obtain simple relations between each combination of cross-sections and the corresponding gluon distribution functions of proton, neutron, pion and daon:
Gp8(x)/(Δpp-Δpp)=Gn8(x)/(Δpp)=Gπ8(x)/(Δπ+pπ-p=GK8(x)/(ΔK+pK-p)which are expected to be test in experiment.

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