THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
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Probe R-Parity Violating Supersymmetry in Forward--Backward Asymmetry |
GUO Lei, HAN Liang, MA Wen-Gan, XI Yun-Feng, YANG Si-Qi, ZHANG Ren-You |
Department of Modern Physics, University of Science and Technology of China, Hefei 230026 |
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Cite this article: |
GUO Lei, HAN Liang, MA Wen-Gan et al 2010 Chin. Phys. Lett. 27 031301 |
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Abstract We investigate the possibility of probing R-parity violating interactions in forward-backward asymmetries, and conclude that the Tevatron collider is the best place to measure new interactions involving the first generation of quarks. With additional down type squark ~dk contributions, the charge asymmetry in e+e— events around Z-pole mass region at the Tevatron will be sensitive to R-parity violating couplings λ’11k, which was inaccessible to the LEP Qfb had inclusive measurement. Assuming no apparent deviation from SM prediction is observed, λ’11k< 0.19 at 95% C.L. with squark mass M~dk=100 GeV can be derived.
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Keywords:
13.85.-t
12.15.Ji
12.15.Mm
12.60.Jv
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Received: 23 November 2009
Published: 09 March 2010
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PACS: |
13.85.-t
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(Hadron-induced high-and super-high-energy interactions (energy > 10 GeV))
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12.15.Ji
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(Applications of electroweak models to specific processes)
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12.15.Mm
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(Neutral currents)
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12.60.Jv
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(Supersymmetric models)
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Abstract
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