The past, present and future of the heavier electroweakinos in the light of LHC and other data

Datta, Amitava; Ganguly, Nabanita

doi:10.1007/jhep01(2019)103

Cited by 15 publications

(6 citation statements)

References 108 publications

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“…it may be either Bino-, Singlino-or Higgsino-dominated [54]. This situation, however, may be changed greatly since experimental search for the production of SUSY particles at LHC and DM-nucleon scattering in DM direct detection experiments has made considerable progress in the last years, which was emphasized in recent works [64,65]. For example, compared with the LHC Run I results, the LHC Run II data have pushed the mass limits on Wino-like χ ± 1 / χ 0 2 from 345 GeV to 650 GeV in simplified model with χ 0 1 = 0 GeV [66], and the recent XENON-1T experiment [67] has improved the sensitivity of the scattering rate by about three times in comparison with the results obtained in 2017 by LUX and PandaX-II experiments [68,69].…”

Section: Introductionmentioning

confidence: 99%

Current status of a natural NMSSM in light of LHC 13 TeV data and XENON-1T results

Cao

Shang

et al. 2019

Phys. Rev. D

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In the natural realization of the Next-to-minimal Supersymmetric Standard Model, Higgsinos tend to be lighter than about several hundred GeVs, which can induce detectable leptonic signals at the LHC as well as large DM-nucleon scattering cross section. We explore the constraints from the direct searches for electroweakino and slepton at the LHC Run II and the latest DM direct detection experiments on the scenario with low fine tuning indicator ∆ Z/h ≤ 50. We find that these experiments are complementary to each other in excluding the scenario, and as far as each kind of experiment is concerned, it is strong enough to exclude a large portion of the parameter space. As a result, the scenario with Bino-or Higgsinodominated DM is disfavored, and that with Singlino-dominated DM is tightly limited. There are two regions in natural NMSSM parameter space surviving in the current experimental limits. One is featured with a decoupled Singlino-dominated LSP with µ m χ 0 1 , which cannot be explored by neither DM detections or collider searches. The other parameter space region is featured by 10 −47 cm 2 σ SI χ−p 10 −46 cm 2 and the correlation µ m χ 0 1 , which will be explored by near future DM detection experiments.

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Section: Introductionmentioning

confidence: 99%

Current status of a natural NMSSM in light of LHC 13 TeV data and XENON-1T results

Cao

Shang

et al. 2019

Phys. Rev. D

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“…This renders these searches viable and hence yielding constraints. 2 Critical studies as to how strong and robust a constraint the LHC experiments could impose on such relatively light higgsino-like ewinos (and hence on 'µ') have recently been undertaken by various groups [18,19]. Incidentally, the observed SM-like Higgs boson (h SM ) of mass around 125 GeV could at best be the lightest of the MSSM Higgs bosons while all its cousins have to be much heavier (the so-called decoupling limit).…”

mentioning

confidence: 99%

Revisiting singlino dark matter of the natural Z3-symmetric NMSSM in the light of LHC

Abdallah

Chatterjee

Datta

2019

J. High Energ. Phys.

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Inspired by the fact that relatively small values of the effective higgsino mass parameter of the Z 3 -symmetric Next-to-Minimal Supersymmetric Standard Model (NMSSM) could render the scenario 'natural', we explore the plausibility of having relatively light neutralinos and charginos (the electroweakinos or the ewinos) in such a scenario with a rather light singlino-like Lightest Supersymmetric Particle (LSP), which is a Dark Matter (DM) candidate, and singlet-dominated scalar excitations. By first confirming the indications in the existing literature that finding simultaneous compliance with results from the Large Hadron Collider (LHC) and those from various DM experiments with such light states is, in general, a difficult ask, we proceed to demonstrate, with the help of a few representative benchmark points, how exactly and to what extent could such a highly motivated 'natural' setup with a singlino-like DM candidate still remains plausible.

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“…In the MSSM context, some recent studies [38,[101][102][103][104] have taken a critical look into the robustness of such constraints when these states are higgsino-like. Their production rates at the LHC are known to be smaller than the wino-like states of the same mass.…”

Section: Jhep04(2021)122mentioning

confidence: 99%

A relatively light, highly bino-like dark matter in the Z3-symmetric NMSSM and recent LHC searches

Abdallah

Datta

Roy

2021

J. High Energ. Phys.

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A highly bino-like Dark Matter (DM), which is the Lightest Supersymmetric Particle (LSP), could be motivated by the stringent upper bounds on the DM direct detection rates. This is especially so when its mass is around or below 100 GeV for which such a bound tends to get most severe. Requiring not so large a higgsino mass parameter, that would render the scenario reasonably ‘natural’, prompts such a bino-like state to be relatively light. In the Minimal Supersymmetric Standard Model (MSSM), in the absence of comparably light scalars, such an excitation, if it has to be a thermal relic, is unable to meet the stringent experimental upper bound on its abundance unless its self-annihilation hits a funnel involving either the Z-boson or the Standard Model (SM)-like Higgs boson. We demonstrate that, in such a realistic situation, a highly bino-like DM of the popular Z3-symmetric Next-to-Minimal Supersymmetric Standard Model (NMSSM) is viable over an extended range of its mass, from our targeted maximum in the vicinity of the mass of the top quark down to about 30 GeV. This is facilitated by the presence of comparably light singlet-like states that could serve as funnel (scalars) and/or coannihilating (singlino) states even as the bino-like LSP receives a minimal (but optimal) tempering triggered by suitably light higgsino states that, in the first place, evade stringent lower bounds on their masses that can be derived from the Large Hadron Collider (LHC) experiments only in the presence of a lighter singlino-like state. An involved set of blind spot conditions is derived for the DM direct detection rates by considering for the very first time the augmented system of neutralinos comprising of the bino, the higgsinos and the singlino which highlights the important roles played by the NMSSM parameters ‘λ’ and tan β in delivering a richer phenomenology.

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The past, present and future of the heavier electroweakinos in the light of LHC and other data

Cited by 15 publications

References 108 publications

Current status of a natural NMSSM in light of LHC 13 TeV data and XENON-1T results

Current status of a natural NMSSM in light of LHC 13 TeV data and XENON-1T results

Revisiting singlino dark matter of the natural Z3-symmetric NMSSM in the light of LHC

A relatively light, highly bino-like dark matter in the Z3-symmetric NMSSM and recent LHC searches

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