Publication: Light gravitino dark matter: LHC searches and the Hubble tension
Дата
2020
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The recent measurements of the cosmological parameter H-0 from the direct local observations and the inferred value from the cosmic microwave background show approximately 4 sigma discrepancy. This may indicate new physics beyond the standard ACDM. We investigate the keV gravitino dark matter that has a small fraction of nonthermal components (e.g., from the late decay of next-to-lightest-supersymmetric-particle bino) under various cosmological constraints. We find such a scenario is highly predictive and can be tested by searching for the dilepton plus missing energy events at the LHC. Besides, we also discuss its implication for Hubble tension, which can be reduced to 3 sigma level marginally.
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Light gravitino dark matter: LHC searches and the Hubble tension / Gu, YC [et al.] // Physical Review D. - 2020. - 102. - № 11. - 10.1103/PhysRevD.102.115005
URI
https://www.doi.org/10.1103/PhysRevD.102.115005
https://www.scopus.com/record/display.uri?eid=2-s2.0-85099925186&origin=resultslist
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https://openrepository.mephi.ru/handle/123456789/22679
https://www.scopus.com/record/display.uri?eid=2-s2.0-85099925186&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000594994400012
https://openrepository.mephi.ru/handle/123456789/22679