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Chinese Physics C> 1993, Vol. 17> Issue(1) : 44-48 

The Mass Effects of Gluino and Squark On Z Decay Into bb

  •  Institute of Theoretical Physics,Chongqing University Chongqing,Sichuan 630044

  • We studied the one-loop gluino correction to the process Z→bb in the minimal supersymmetric standard model (N=1) and investigated the dependence of the process on gluino and squark masses and the effects of L-R Squark mixing.For some values of the massesunder study,the correction to the ratio of the Z→bb partial width to all hadrons' may reach 3%.
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    [1] W. Hollik, CERN-TH, 5661/90.[2] M. Veltman, Nuci. Phys., 8123(1977), 89,[3] A. A. Akhundov, D. Y. Bardin, and T. Riemann, Nucl. Phys., B276(1986), W. Beenakker and W. I-Idllik, Z. Phys., C40(1988), 141.[4] F. Boudjetna, et al., Phys. Lett., B238(1990), 423.[5] A. Djouadi, Desy 91-061(June 1991).[6] H. E. Haber, Phys. Rept., 117, Nos. 2-4(198'5)75-263.[7] Dake. Koelke, SLAC-PUB-5650(Sept. 1991/E). R. G. Jacobsen, et al., Pkys. Rev. Lett., 87(1991), 3347.[8] A. Djouadi, et al., Nucl. Phys., 8349(1991), 48.[9] M, Boulware, et al., Phys. Rev., D44(1991), 2054.[10] C. S. Li, B. Q. Hu, Chi,ncsc Phys: Lett., Vol. 9, No. 6(1992)285.

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HU Bing-Quan, LI Chong-Sheng, CHEN Xin-Yong and WEI Yan-Shen. The Mass Effects of Gluino and Squark On Z Decay Into bb[J]. Chinese Physics C, 1993, 17(1): 44-48.
HU Bing-Quan, LI Chong-Sheng, CHEN Xin-Yong and WEI Yan-Shen. The Mass Effects of Gluino and Squark On Z Decay Into bb[J]. Chinese Physics C, 1993, 17(1): 44-48. shu
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Received: 1900-01-01
Revised: 1900-01-01
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The Mass Effects of Gluino and Squark On Z Decay Into bb

    Corresponding author: HU Bing-Quan,
  • Institute of Theoretical Physics,Chongqing University Chongqing,Sichuan 630044
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1993-01-05

Abstract: We studied the one-loop gluino correction to the process Z→bb in the minimal supersymmetric standard model (N=1) and investigated the dependence of the process on gluino and squark masses and the effects of L-R Squark mixing.For some values of the massesunder study,the correction to the ratio of the Z→bb partial width to all hadrons' may reach 3%.

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