Hunting squarks in Higgsino LSP scenarios at the LHC
Hunting squarks in Higgsino LSP scenarios at the LHC
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DOI：
10.1103/physrevd.107.015024
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发表时间：
2021-12
影响因子：
5
通讯作者：
E. Arganda;Antonio Delgado;R. Morales;M. Quir'os
中科院分区：
文献类型：
--
作者：
E. Arganda;Antonio Delgado;R. Morales;M. Quir'os
假设强相互作用的超粒子将直接衰变到LSP加喷流，在这些衰变被汤川抑制的情况下，这一假设就被打破了。这种情况发生在产生前两代方夸克的时候，同时，有几个电弱子比这些方夸克轻。在本文中，我们分析的对产生的squarks，随后衰变到一个中间的中性伴子（χ <$3）加喷流的信号。然后中性伴子将衰变为LSP（主要是希格斯玻色子）和希格斯玻色子。我们模拟了这些事件，并根据两个喷流、四个b夸克和丢失的横能量的信号设计了一个发现策略。我们在14 TeV和300 fb−1下获得了LHC灵敏度的非常有希望的值。埃内斯托.阿尔甘达@ csic.es adelgad2@nd.edu罗伯托.莫拉莱斯@ fisica.unlp.edu.ar quiros@ifae.es ar X iv：2 11 2. 09 19 8v 1 [ he pph ] 1 6 D ec 2 02 1
The assumption that strongly interacting sparticles will decay directly to the LSP plus jets breaks down in situations where those decays are Yukawa suppressed. That occurs when producing the first two generations of squarks and when, at the same time, there are several electroweakinos lighter than those squarks. In this paper we analyze the signal of pair production of squarks that subsequently decay to an intermediate neutralino (χ̃3) plus jets. The neutralino will then decay to the LSP (mainly higgsino) and a Higgs. We have simulated the events and designed a discovery strategy based on a signal of two jets, four b-quarks and missing transverse energy. We obtain very promising values for the LHC sensitivity at 14 TeV and 300 fb−1. ernesto.arganda@csic.es adelgad2@nd.edu roberto.morales@fisica.unlp.edu.ar quiros@ifae.es ar X iv :2 11 2. 09 19 8v 1 [ he pph ] 1 6 D ec 2 02 1