arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1208.4858hep-phhep-ex
收藏

LHC上W素玻色子的模型无关到达

Model independent reach for W-prime bosons at the LHC

Daniel Duffty, Zack Sullivan

摘要:

单顶夸克产生的半轻子衰变为欧洲核子研究中心大型强子对撞机上的W质玻色子提供了强有力的探测。我们提出了一种明确的搜索策略,用于pp -> W-prime-> tb -> l nu b j,适用于7 TeV和8 TeV的对撞机能量,积分亮度范围为5 ~ 20 fb^-1。基于探测器模拟的结果,我们预测,在标准模型耦合下,右手W-素数R的质量可以有一个下限:在sqrt{S}=7 TeV、5 fb^-1时,m_{W-prime_R} > 1800 GeV;在8 TeV、20 fb^-1时,m_{W-prime_R} > 2000 GeV。对于左手W-素_L玻色子,我们发现在7 TeV和5 fb^-1时,其能量下限为1750-1800 GeV,这取决于干扰标准模型单顶夸克产生的符号。我们提出了有效的耦合g^prime相关的限制可访问的群众,并强调这些限制的重要性与理论模型进行比较。

英文摘要:

The semileptonic decay of single-top-quark production provides a strong probe for W-prime bosons at the CERN Large Hadron Collider. We propose an explicit search strategy for pp -> W-prime -> tb -> l nu b j for use at 7 TeV and 8 TeV collider energies, and integrated luminosities ranging from 5 to 20 fb^-1. Based on detector-simulated results, we predict that a lower bound can be placed on the mass of right-handed W-prime_R with standard model-like couplings of m_{W-prime_R} > 1800 GeV at sqrt{S}=7 TeV with 5 fb^-1, and of m_{W-prime_R} > 2000 GeV at 8 TeV with 20 fb^-1. For left-handed W-prime_L bosons we find a lower bound of 1750-1800 GeV at 7 TeV and 5 fb^-1 depending on the sign of the interference with standard model single-top-quark production. We present effective coupling g^prime dependent limits for accessible masses, and stress the importance of these limits for comparison with theoretical models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑