Probe R-Parity Violating Supersymmetry in Forward--Backward Asymmetry

• 作者: 席云峰 张仁友 杨思奇 郭磊 韩良 马文淦
• 来源期刊: 中国物理快报(英文版)
• 学科: 工学
• 关键词: 不对称 Tevatron 探针 倒向 电子工程 相互作用 amp 第一代
• 年，卷（期）: 2010,（3）
• 页码范围: 84-87
• 页数: 4页
• 分类号: TL507 Q78
• 语种: 英文

摘要

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 Mdk=100 GeV can be derived.