Probing the $$H^\pm W^{\mp } Z$$ interaction at the high energy upgrade of the LHC

Adhikary, Amit; Chakrabarty, Nabarun; Chakraborty, Indrani; Lahiri, Jayita

doi:10.1140/epjc/s10052-021-09335-x

Cited by 11 publications

(5 citation statements)

References 74 publications

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“…To show this we include a 5% systematic uncertainty and highlight its effect in Table VIII along side the null systematic uncertainty results. The signal significance gets modified by introducing a systematic uncertainty (σ sys_un ) in the SM background estimation [68] following:…”

Section: Collider Searchesmentioning

confidence: 99%

Signals for vector-like leptons in an $S_3$-symmetric 2HDM at ILC

Chakraborty,

Ghosh,

Ghosh

et al. 2022

Preprint

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In this work, we explore the signals of an S 3 -symmetric two Higgs doublet model with two generations of vector-like leptons (VLLs) at the proposed International Linear Collider (ILC). The lightest neutral component of the VLL in this model provides a viable DM candidate satisfying the current relic density data as well as circumventing all direct and indirect DM search constraints. Some representative benchmark points have been selected with low, medium and high DM masses, satisfying all theoretical and experimental constraints of the model and constraints coming from the DM sector. The VLLs (both neutral and charged) will be produced in pair leading to multilepton and multi-jet final states. We show that the ILC will prove to be a much more efficient and useful machine to hunt for such signals compared to LHC. Using traditional cut-based analysis as well as sophisticated multivariate analysis, we perform a detailed analysis of some promising channels containing mono-lepton plus di-jet, di-lepton, four-lepton and four jets along with missing transverse energy in the final state at 1 TeV ILC.

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Section: Collider Searchesmentioning

confidence: 99%

Signals for vector-like leptons in an $S_3$-symmetric 2HDM at ILC

Chakraborty,

Ghosh,

Ghosh

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…To show this we include a 5% systematic uncertainty and highlight its effect in Table 8 along side the null systematic uncertainty results. The signal significance gets modified by introducing a systematic uncertainty (σ sys_un ) in the SM background estimation [68] following:…”

Section: + E/ T Final Statementioning

confidence: 99%

Signals for vector-like leptons in an $$S_3$$-symmetric 2HDM at ILC

Chakraborty

Ghosh

et al. 2022

Eur. Phys. J. C

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In this work, we explore the signals of an $$S_3$$ S 3 -symmetric two Higgs doublet model with two generations of vector-like leptons (VLLs) at the proposed International Linear Collider (ILC). The lightest neutral component of the VLL in this model provides a viable dark matter (DM) candidate satisfying the current relic density data as well as circumventing all direct and indirect DM search constraints. Some representative benchmark points have been selected with low, medium and high DM masses, satisfying all theoretical and experimental constraints of the model and constraints coming from the DM sector. The VLLs (both neutral and charged) will be produced in pair leading to multi-lepton and multi-jet final states. We show that the ILC will prove to be a much more efficient and useful machine to hunt for such signals compared to LHC. Using traditional cut-based analysis as well as sophisticated multivariate analysis, we perform a detailed analysis of some promising channels containing mono-lepton plus di-jet, di-lepton, four-lepton and four jets along with missing transverse energy in the final state at 1 TeV ILC.

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“…We quote our results by assuming a 20% (50%) systematic uncertainty, where the signal significance is estimated using the formula in Ref. [105]. We present our results for √ s = 14 TeV to make it easier to translate to the case of Run-3 ( √ s = 13.6 TeV) and HL-LHC ( √ s = 14 TeV) as the cross-sections for direct electroweakino production are not expected to change much.…”

Section: Collider Analyses For Probing the Light Higgsinosmentioning

confidence: 99%

Current bounds and future prospects of light neutralino dark matter in the NMSSM

et al. 2021

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In a previous publication, we studied the parameter space of the phenomenological Minimal Supersymmetric Standard Model (pMSSM) with a light neutralino thermal dark matter (M χ0 1 ≤ M h /2) and observed that the recent results from the dark matter and collider experiments put strong constraints on this scenario. In this work, we present in detail the arguments behind the robustness of this result against scanning over the large number of parameters in pMSSM. The Run-3 of LHC will be crucial in probing the surviving regions of the parameter space. We further investigate the impact of light staus on our parameter space and also provide benchmarks which can be interesting for Run-3 of LHC. We analyse these benchmarks at the LHC using the machine learning framework of XGBOOST. Finally, we also discuss the effect of non-standard cosmology on the parameter space.

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Probing the $$H^\pm W^{\mp } Z$$ interaction at the high energy upgrade of the LHC

Abstract: An $$H^\pm W^{\mp } Z$$ H ± W ∓ Z interaction at the tree level is a common feature of new physics models that feature scalar triplets. In this study, we aim to probe the strength of the aforementioned interaction in a model-agnostic fashion at the futuristic 27 TeV p… Show more

Cited by 11 publications

References 74 publications

Signals for vector-like leptons in an $S_3$-symmetric 2HDM at ILC

Signals for vector-like leptons in an $S_3$-symmetric 2HDM at ILC

Signals for vector-like leptons in an $$S_3$$-symmetric 2HDM at ILC

Current bounds and future prospects of light neutralino dark matter in the NMSSM

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