New constraints on gauge mediation and beyond from LHC SUSY searches at 7 TeV

New constraints on gauge mediation and beyond from LHC SUSY searches at 7 TeV
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7 TeV 的大型强子对撞机 SUSY 搜索对规范中介及其他方面的新限制

DOI:
10.1007/jhep06(2011)095
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发表时间:
2011
影响因子:
5.4
通讯作者:
Dolan M
Dolan M
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Dolan M

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大型强子对撞机对喷流和缺失能量的初步研究结果为验证超对称性模型提供了强有力的新数据。对这些数据的最初理论解释集中在重力中介上,通常是CMSSM及其变化。在本文中,我们用这些新数据来面对一大类规范中介模型。更准确地说,我们考虑了纯一般规范中介(纯GGM)模型,并将它们与ATLAS合作的最新实验结果进行了比较。我们使用Herwig++和RIVET,结合全套实验切割,计算信号率并将其与数据进行比较。虽然仅基于35pb−1的积分光度,但我们表明这些新数据探测并排除了以前允许的GGM参数空间的一部分。此外,我们还研究了标准SUSY基准点的可行性,包括Snowmass, CMS和ATLAS集,它们包含其他中介场景,如重力,异常和高差调解。
The first results from the LHC on jets plus missing energy provide powerful new data to test SUSY models. Initial theoretical interpretations of these data have concentrated on gravity mediation, usually the CMSSM and its variations. In this paper we confront a large class of gauge mediation models with these new data. More precisely we consider models of pure general gauge mediation (pure GGM) and confront them with the recent experimental results of the ATLAS collaboration. We use Herwig++ and RIVET, incorporating the full set of experimental cuts, to calculate the signal rates and compare them to the data. Although based on only 35pb− 1 of integrated luminosity, we show that these new data probe and exclude a portion of previously allowed parameter space of GGM. In addition we investigate the viability of standard SUSY benchmark points, including the Snowmass, CMS and ATLAS sets which encompass other mediation scenarios such as gravity, anomaly and gaugino mediation.
ATLAS 零轻子、喷流和缺失动量搜索对 CMSSM 拟合的影响
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