Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 10, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP10(2022)092
Keywords
Supersymmetry; Specific BSM Phenomenology
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Funding
- Natural Science Foundation of the Higher Education Institutions of Jiangsu Province [22KJB140007]
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This paper presents a solution to the challenging problem of probing nearly-degenerate light higgsinos using photon fusion at the Large Hadron Collider. The study demonstrates that this method can achieve good sensitivity and help discover supersymmetric particles in high-energy collisions.
Supersymmetric models with nearly-degenerate light higgsinos provide a consistent solution to the naturalness problem under rigorous constraints from current experimental searches for sparticles. However, it is challenging to probe the compressed scenarios at collider experiments due to the hard-to-detect soft final states. To overcome this issue, strategies have been proposed to take advantage of the photon fusion along the ultraperipheral collision at the Large Hadron Collider, which are feasible with the forward detectors installed at the ATLAS and CMS detectors. In this paper, we demonstrate a search strategy for the chargino pair production via photon fusion at the 13 TeV LHC, realizing a good sensitivity that can exclude m((chi) over tilde)(+/-) up to 270 GeV (308 GeV) for a mass splitting Delta m((chi) over tilde (+/-)(1),(chi) over tilde (similar to 0)(1)) is an element of [1, 15] GeV with an integrated luminosity of 100 fb(-1) (3 ab(-1)) at 95% C.L.
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