论文标题
在LHC处搜索带有位移顶点的光中性
Searching for light neutralinos with a displaced vertex at the LHC
论文作者
论文摘要
我们研究了LHC在LHC上从标量Lepton（$ \ tilde e_l $）从$ pp \ to \ to \ tilde e_ e_ {l} \到e \ tildeχ_1^0 $ in-r-partif的r-pare（r-parterry）（r-pare）r-pare的c \ t to r-pare（r-pare）的过程中，研究了LHC在LHC上产生的Binoilliep Neutralino（$ \ tildeχ_1^0 $） $ \tildeχ_1^0 $是最轻的超对称粒子。对于小质量和RPV耦合，中性诺是天然寿命的，其衰减产物可以识别为流离失所的轨道。在现有的搜索之后，我们为这种光中性诺的移位式搜索策略提出了一个带有单个RPV耦合的稳定性，$λ'_{111} $在质量范围内$ 10 \，\ mbox {gev} \ mbox {gev} \ sillesim m _ {我们执行蒙特卡洛模拟，并得出结论，在高光度LHC下，所提出的搜索可以探测$λ'_ {111} $的值，降低了两个比当前边界小的数量级，并且比MonoLepton搜索的预期极限高40倍。
We study a bino-like light neutralino ($\tilde χ_1^0$) produced at the LHC from the decay of a scalar lepton ($\tilde e_L$) through the process $pp\to \tilde e_{L} \to e\tilde χ_1^0$ in the context of R-parity-violating (RPV) supersymmetry where $\tilde χ_1^0$ is the lightest supersymmetric particle. For small masses and RPV couplings, the neutralino is naturally long-lived and its decay products can be identified as displaced tracks. Following existing searches, we propose a displaced-vertex search strategy for such a light neutralino with a single RPV coupling switched on, $λ'_{111}$, in the mass range $10\,\mbox{GeV} \lesssim m_{\tilde χ_1^0}\lesssim 230\,\mbox{GeV}$. We perform Monte Carlo simulations and conclude that at the high-luminosity LHC, the proposed search can probe values of $λ'_{111}$ down to two orders of magnitude smaller than current bounds and up to 40 times stronger than projected limits from monolepton searches.
