论文标题
在$ \ sqrt {s} $ = 13 TEV中搜索E $ $ $，E $ $ $ $ $，E $τ$的重谐解和量子黑洞。
Search for heavy resonances and quantum black holes in e$μ$, e$τ$, and $μτ$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
论文作者
论文摘要
搜索搜索是否有较重的共振和量子黑洞腐烂成E $ $，E $τ$，以及$μτ$最终状态在质子 - 普罗顿碰撞数据中，由CMS实验在2016- 2018年期间在$ \ sqrt {s} $ = 13 tev期间的Cern LHC上记录，对应于整体流明$^$^$^$^$^$^$^$^$^$^$ 138 fb^$^$^$^$^$^$^$^fb^$^$^$^$^。重建了E $ $ $，E $τ$和$μτ$不变的质谱，并且在标准模型之外没有发现物理学的证据。上限设置为横截面的乘积的95％置信水平，而分支分数则违反了Lepton侵犯信号。研究了三个基准信号：共鸣$τ$ sneutrino生产$ r $ r $均等违反超对称型号，重型Z'仪表玻色子，具有违反Lepton风味的腐烂的腐蚀性以及具有额外空间维度的模型中的非谐振量子黑洞。 E $ $ $ $ $ $ $ $ $ $ $ $ 4.2 TEV的谐振$τ$ Sneutrinos被排除在E $ $ $τ$ Channel中的3.7 TEV和3.6 TEV中的群众和3.6 TEV。在E $ $ $通道中排除了具有Lepton风味的Z'Boson，其中排除了5.0 TEV的质量，在E $τ$通道中的质量最高为4.3 TEV，在$μτ$通道中的质量最高为4.3 TEV。基准模型中的量子黑孔被排除在E $ $ $通道中的5.6 TEV的阈值质量，E $τ$通道中的5.2 TEV和5.0 TEV和$μτ$通道中的5.0 TEV。此外，提取了独立于模型的限制，以便与其他模型进行相同最终状态和相似事件选择要求的其他模型进行比较。这些搜索的结果提供了对撞机实验可获得的最严格的限制。
A search is reported for heavy resonances and quantum black holes decaying into e$μ$, e$τ$, and $μτ$ final states in proton-proton collision data recorded by the CMS experiment at the CERN LHC during 2016-2018 at $\sqrt{s}$ = 13 TeV, corresponding to an integrated luminosity of 138 fb$^{-1}$. The e$μ$, e$τ$, and $μτ$ invariant mass spectra are reconstructed, and no evidence is found for physics beyond the standard model. Upper limits are set at 95% confidence level on the product of the cross section and branching fraction for lepton flavor violating signals. Three benchmark signals are studied: resonant $τ$ sneutrino production in $R$ parity violating supersymmetric models, heavy Z' gauge bosons with lepton flavor violating decays, and nonresonant quantum black hole production in models with extra spatial dimensions. Resonant $τ$ sneutrinos are excluded for masses up to 4.2 TeV in the e$μ$ channel, 3.7 TeV in the e$τ$ channel, and 3.6 TeV in the $μτ$ channel. A Z' boson with lepton flavor violating couplings is excluded up to a mass of 5.0 TeV in the e$μ$ channel, up to 4.3 TeV in the e$τ$ channel, and up to 4.1 TeV in the $μτ$ channel. Quantum black holes in the benchmark model are excluded up to the threshold mass of 5.6 TeV in the e$μ$ channel, 5.2 TeV in the e$τ$ channel, and 5.0 TeV in the $μτ$ channel. In addition, model-independent limits are extracted to allow comparisons with other models for the same final states and similar event selection requirements. The results of these searches provide the most stringent limits available from collider experiments for heavy particles that undergo lepton flavor violating decays.
