Effects of R-Parity Violating Supersymmetry in Top Pair Production at Linear Colliders with Polarized Beams |
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| Authors: | WANG Xue-Lei LI Ji-Tao LIU Su-Zhen |
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| Affiliation: | College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China |
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| Abstract: | In the minimal supersymmetric standard model with R-parity violation, the lepton number violating top quark interactions can contribute to the top pair production at a linear collider via tree-level u-channel squark exchange diagrams. We calculate such contributions and find that in the allowed range of these R-violating couplings, the top pair production rate as well as the top quark polarization and the forward-backward asymmetry can be significantly altered. By comparing the unpolarized beams with the polarized beams, we find that the polarized beams are more powerful in probing such new physics. |
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| Keywords: | linear colliders minimal supersymmetric model top quark R-parity |
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