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 1111.5936hep-phhep-ex
收藏

LHC的夸克接触相互作用

Quark contact interactions at the LHC

F. Bazzocchi, U. De Sanctis, M. Fabbrichesi, A. Tonero

摘要:

夸克接触相互作用是新物理学的重要标志。我们介绍了一个模型,其中存在的对称性保护这些新的相互作用在低能量的味道变化过程中给予大的修正。这个极小模型提供了一组基本的操作员,必须考虑到有助于高能量的过程。为了讨论它们在质子-质子碰撞中产生的喷流对中的实验特征,我们将可能的算子数目简化为两个。我们展示了(在\surd s = 7 TeV时,代表性的积分亮度为200 pb^-1)两个算符的存在如何显著地改变了接触相互作用特征能量标度的界限,而接触相互作用的特征能量标度是通过保持单个算符得到的。

英文摘要:

Quark contact interactions are an important signal of new physics. We introduce a model in which the presence of a symmetry protects these new interactions from giving large corrections in flavor changing processes at low energies. This minimal model provides the basic set of operators which must be considered to contribute to the high-energy processes. To discuss their experimental signature in jet pairs produced in proton-proton colllisions, we simplify the number of possible operators down to two. We show (for a representative integrated luminosity of 200 pb^-1 at \surd s = 7 TeV) how the presence of two operators significantly modifies the bound on the characteristic energy scale of the contact interactions which is obtained by keeping a single operator.

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。

↑