"Table 65" of "Search for the direct production of charginos, neutralinos and staus in final states with at least two hadronically decaying taus and missing transverse momentum in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector"

CERN-LHC. Results of a search for the electroweak associated production of charginos and next-to-lightest neutralinos, pairs of charginos or pairs of tau sleptons are presented. These processes are characterised by final states with at least two hadronically decaying tau leptons, missing transverse momentum and low jet activity. The analysis is based on an integrated luminosity of 20.3 fb-1 of proton-proton collisions at sqrt(s) = 8 TeV recorded with the ATLAS experiment at the Large Hadron Collider. No significant excess is observed with respect to the predictions from Standard Model processes. Limits are set at 95% confidence level on the masses of the lighter chargino and next-to-lightest neutralino for various hypotheses for the lightest neutralino mass in simplified models. In the scenario of direct production of chargino pairs, with each chargino decaying into the lightest neutralino via an intermediate tau slepton, chargino masses up to 345 GeV are excluded for a massless lightest neutralino. For associated production of mass-degenerate charginos and next-to-lightest neutralinos, both decaying into the lightest neutralino via an intermediate tau slepton, masses up to 410 GeV are excluded for a massless lightest neutralino.

欧洲核子研究中心大型强子对撞机（CERN-LHC）：本工作报道了一项搜索实验的结果，针对三类电弱伴随产生过程：荷微子（chargino）与次轻中性微子（next-to-lightest neutralino）的联合产生、荷微子对产生以及τ超轻子（tau slepton）对产生。上述过程的特征末态包含至少两个强衰变τ轻子、横向缺失动量与低喷注活动性。本分析基于大型强子对撞机阿特拉斯（ATLAS）实验采集的、质心系能量√s=8 TeV的质子-质子对撞数据，积分亮度为20.3 fb⁻¹。与标准模型（Standard Model）过程的理论预言相比，未观测到显著的信号超出。针对简化模型中最轻中性微子质量的多种假设，我们在95%置信水平下对轻荷微子与次轻中性微子的质量设定了排除限。在荷微子对直接产生的情景下，若每个荷微子通过中间τ超轻子衰变至最轻中性微子，则当最轻中性微子质量为零时，质量不超过345 GeV的荷微子均被排除。对于质量简并的荷微子与次轻中性微子的伴随产生过程（二者均通过中间τ超轻子衰变至最轻中性微子），当最轻中性微子质量为零时，质量不超过410 GeV的粒子均被排除。