Chinese Physics C > 2001, Vol. 25 > Issue(6): 476-486

Spin Transfer in High-Energy Hadronization Processes and Polarization of Hyperon in the Lepton-Induced Reactions

LIU Chun-Xiu^,,
LIANG Zuo-Tang

Department of Physics,Shandong University, Ji'nan 250100,China

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Abstract：
We show that measuring the polarization of hyperon in the lepton induced reactions is an ideal way to study the spin transfer in high energy hadronization processes. After a brief summary of the polarization of the initial quark or antiquark in these reactions,we give the calculation method of the polarization of hyperon. As an example,we calculate polarizations of different hyperons in e ⁺e ^－annihilation at LEP energys and compare these results with the available data. The results show that measurements of such polarizations should provide important information about the question of which picture of spin structure of baryon is more suitable in describing the spin effects in the high energy fragmentation processes.

References

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LIU Chun-Xiu and LIANG Zuo-Tang. Spin Transfer in High-Energy Hadronization Processes and Polarization of Hyperon in the Lepton-Induced Reactions[J]. Chinese Physics C, 2001, 25(6): 476-486.

LIU Chun-Xiu and LIANG Zuo-Tang. Spin Transfer in High-Energy Hadronization Processes and Polarization of Hyperon in the Lepton-Induced Reactions[J]. Chinese Physics C, 2001, 25(6): 476-486. shu

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Received: 2000-06-15
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

Spin Transfer in High-Energy Hadronization Processes and Polarization of Hyperon in the Lepton-Induced Reactions

LIU Chun-Xiu^,
LIANG Zuo-Tang

Corresponding author:LIU Chun-Xiu,

Department of Physics,Shandong University, Ji'nan 250100,China

Received Date:2000-06-15
Accepted Date:1900-01-01
Available Online:2001-06-05

Abstract:We show that measuring the polarization of hyperon in the lepton induced reactions is an ideal way to study the spin transfer in high energy hadronization processes. After a brief summary of the polarization of the initial quark or antiquark in these reactions,we give the calculation method of the polarization of hyperon. As an example,we calculate polarizations of different hyperons in e⁺e^－annihilation at LEP energys and compare these results with the available data. The results show that measurements of such polarizations should provide important information about the question of which picture of spin structure of baryon is more suitable in describing the spin effects in the high energy fragmentation processes.