论文标题

在$ \ sqrt {s} $ \ sqrt {s} $ = 13 tev中,搜索衰减成第一代或第二代lepton的标量leptoquarks的成对产生,并带有ATLAS检测器

Search for pair production of scalar leptoquarks decaying into first- or second-generation leptons and top quarks in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector

论文作者

ATLAS Collaboration

论文摘要

搜索标量leptoquarks的一对产生,每种腐烂到电子或muon和顶部夸克。这是第一次使用Atlas Data进行研究的Leptoquark搜索,以研究顶级跨代耦合,可以为最近观察到的$ B $ Meson衰减中最近观察到的异常提供解释。该分析的靶向高leptoquark质量,这会导致每个最终顶级夸克的衰减产物包含在单个高$ p _ {\ mathrm {t}} $大radius jet中。全运行2个数据集是利用的,由139 fb $^{ - 1} $组成,从proton-proton碰撞收集到$ \ sqrt {s} = 13 $ TEV,从2015年到2018年,与Cern大型Hadron Collider的Atlas detecter一起收集。在与背景期望的任何显着偏差的情况下,链球质量的下限分别设置为1480 GEV和1470 GEV的电子和MUON通道。

A search for pair production of scalar leptoquarks, each decaying into either an electron or a muon and a top quark, is presented. This is the first leptoquark search using ATLAS data to investigate top-philic cross-generational couplings that could provide explanations for recently observed anomalies in $B$ meson decays. This analysis targets high leptoquark masses which cause the decay products of each resultant top quark to be contained within a single high-$p_{\mathrm{T}}$ large-radius jet. The full Run 2 dataset is exploited, consisting of 139 fb$^{-1}$ of data collected from proton-proton collisions at $\sqrt{s}=13$ TeV from 2015 to 2018 with the ATLAS detector at the CERN Large Hadron Collider. In the absence of any significant deviation from the background expectation, lower limits on the leptoquark masses are set at 1480 GeV and 1470 GeV for the electron and muon channel, respectively.

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