Mass effect in polarization investigation at BEPC/BES and the B-factory

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JIA Han-Bing and MA Bo-Qiang. Mass effect in polarization investigation at BEPC/BES and the B-factory[J]. Chinese Physics C, 2013, 37(1): 013102. doi: 10.1088/1674-1137/37/1/013102
JIA Han-Bing and MA Bo-Qiang. Mass effect in polarization investigation at BEPC/BES and the B-factory[J]. Chinese Physics C, 2013, 37(1): 013102.  doi: 10.1088/1674-1137/37/1/013102 shu
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Received: 2012-04-16
Revised: 2012-04-26
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Mass effect in polarization investigation at BEPC/BES and the B-factory

Abstract: We consider the annihilation process of an electron-positron pair into a pair of heavier fermions when the initial electron and position beams are polarized. By calculating the polarization of the final-state particles, we discuss in detail the effect due to the produced particle masses in the τ-charm energy region at BEPC/BES, and also compare the effect with that at the B-factory. Such a study is useful for the design of possible polarization investigation at the BEPC/BES facility and the B-factory.

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