gb→tH<SUP>－</SUP> One Loop SUSY-QCD Corrections and Nondecoupling Effects

WAN Ling-De; LU Gong-Ru; GAO Guang-Ping

Chinese Physics C> 2003, Vol. 27> Issue(3) : 189-195

gb→tH^－ One Loop SUSY-QCD Corrections and Nondecoupling Effects

The Physics Department of Hannan Normal University, Xinxiang 453002, China

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Abstract：
In this paper one loop SUSY QCD radiative correction to gb→tH^－cross section is calculated in the context of Minimal Supersymmetric Standard Model. We found that non decoupling effects of SUSY QCD will occur if the gluino mass and the SUSY soft breaking parameter μ or A_t,A_b are at the same order and get large. The non decoupling contribution can be enhanced by large tan β and therefore large corrections to the hadronic production rates at the Tevatron and LHC are expected in the large tan β limit. The fundamental reason for such non decoupling behavior is found to be some couplings in the loops being proportional to SUSY mass parameters.

References

[1]

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WAN Ling-De, LU Gong-Ru and GAO Guang-Ping. gb→tH^－ One Loop SUSY-QCD Corrections and Nondecoupling Effects[J]. Chinese Physics C, 2003, 27(3): 189-195.

WAN Ling-De, LU Gong-Ru and GAO Guang-Ping. gb→tH^－ One Loop SUSY-QCD Corrections and Nondecoupling Effects[J]. Chinese Physics C, 2003, 27(3): 189-195. shu

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Received: 2002-06-25
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

gb→tH^－ One Loop SUSY-QCD Corrections and Nondecoupling Effects

Corresponding author: WAN Ling-De,

The Physics Department of Hannan Normal University, Xinxiang 453002, China

Received Date: 2002-06-25

Accepted Date: 1900-01-01

Available Online: 2003-03-05

Abstract: In this paper one loop SUSY QCD radiative correction to gb→tH^－cross section is calculated in the context of Minimal Supersymmetric Standard Model. We found that non decoupling effects of SUSY QCD will occur if the gluino mass and the SUSY soft breaking parameter μ or A_t,A_b are at the same order and get large. The non decoupling contribution can be enhanced by large tan β and therefore large corrections to the hadronic production rates at the Tevatron and LHC are expected in the large tan β limit. The fundamental reason for such non decoupling behavior is found to be some couplings in the loops being proportional to SUSY mass parameters.

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gb→tH^－ One Loop SUSY-QCD Corrections and Nondecoupling Effects

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gb→tH^－ One Loop SUSY-QCD Corrections and Nondecoupling Effects

gb→tH^－ One Loop SUSY-QCD Corrections and Nondecoupling Effects