Meson Fragmentation Functions in the Field-Feynman Model

HUA Jing; MA Bo-Qiang

Chinese Physics C> 2003, Vol. 27> Issue(11) : 954-959

Meson Fragmentation Functions in the Field-Feynman Model

HUA Jing ^, ,
MA Bo-Qiang

School of Physics, Peking University,Beijing 100871,China

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Abstract：
The pion fragmentation functions are studied in the Field-Feynman recursive model with distinction of Duπ+,Ddπ+ and Dsπ+ , by taking into account the flavor structure in the excitation of the sea quark-antiquark pairs by the initial quarks. The analytical results obtained are compatible with the available empirical results with only three parameters. The framework is also extended to predict the kaon fragmentation functions with distinction of DsK+(z) , DuK+ (z) ,DsK+(z)and DdK+ (z) . This work gives a significant modification to the original model, and the predictions can be tested by further experimental results on kaon fragmentation functions.

References

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Particle Data Group, Hagiwara K et al. Phys. Rev., 2002, D66:010001–12 HERMES Collaboration, Airapetian A et at. Eur. Phys. J., 2001, C21: 5993 Kretzer S, Leader E, Christova E. Eur. Phys. J., 2001, C22:2694 Kretzer S. Phys. Rev., 2000, D62:0540015 MA B Q, Schmidt I, YANG J J. Phys. Rev., 2002, D65:O34010; D66:0940016 Field R D, Feynman R P. Nucl. Phys., 1978, B136:17 Field R D. Applications of Perturbative QCD, Addison–Wesley Publishing Company, 1989,56–608 TANG A. hep–ph/0209167 9 Binnewies J, Kniehl B A, Kramer G. Phys. Rev., 1995, D52:4947; Z. Phys., 1995, C65:471 10 Binnewies J, Kniehl B A, Kramer G. Phys. Rev., 1996, D53:3573 11 Greco M, Rolli S. Phys. Rev., 1995, D52:3853; Indumathi D, Mani H S, Rastogi A. Phys. Rev., 1998, D58:094014 Kniehl B A, Kramer G, Ptter B. Nucl. Phys., 2000, B582:514

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HUA Jing and MA Bo-Qiang. Meson Fragmentation Functions in the Field-Feynman Model[J]. Chinese Physics C, 2003, 27(11): 954-959.

HUA Jing and MA Bo-Qiang. Meson Fragmentation Functions in the Field-Feynman Model[J]. Chinese Physics C, 2003, 27(11): 954-959. shu

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Received: 2003-03-10
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Meson Fragmentation Functions in the Field-Feynman Model

HUA Jing ^,
MA Bo-Qiang

Corresponding author: HUA Jing,

School of Physics, Peking University,Beijing 100871,China

Received Date: 2003-03-10
Accepted Date: 1900-01-01
Available Online: 2003-11-05

Abstract: The pion fragmentation functions are studied in the Field-Feynman recursive model with distinction of Duπ+,Ddπ+ and Dsπ+ , by taking into account the flavor structure in the excitation of the sea quark-antiquark pairs by the initial quarks. The analytical results obtained are compatible with the available empirical results with only three parameters. The framework is also extended to predict the kaon fragmentation functions with distinction of DsK+(z) , DuK+ (z) ,DsK+(z)and DdK+ (z) . This work gives a significant modification to the original model, and the predictions can be tested by further experimental results on kaon fragmentation functions.