Minimal and nonminimal universal extra dimension models in the light of LHC data at 13 TeV

Avnish,; Ghosh, Kirtiman; Jha, Tapoja; Niyogi, Saurabh

doi:10.1103/physrevd.103.115011

Cited by 4 publications

(1 citation statement)

References 112 publications

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“…We are aware of the work [50] and the discrepancies between our results and those presented therein. We are in touch with the authors in order to resolve these differences.…”

Section: Notecontrasting

confidence: 67%

LHC bounds on MUED after Run 2

Flores¹,

Kim²,

Rolbiecki³

et al. 2021

Preprint

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We present the updated LHC limits on the minimal universal extra dimensions (MUED) model from the Run 2 searches. We scan the parameter space against a large number of searches implemented in the public code Check-MATE and show that large uncertainties in the limits exist when modelling using parton showers alone due to differences in the evolution starting scale, especially in the compressed spectra. This motivates us to incorporate matching, thus deriving the most up-to-date limits on the MUED parameter space from 13 TeV searches.

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“…We are aware of the work [50] and the discrepancies between our results and those presented therein. We are in touch with the authors in order to resolve these differences.…”

Section: Notecontrasting

confidence: 67%

LHC bounds on MUED after Run 2

Flores¹,

Kim²,

Rolbiecki³

et al. 2021

Preprint

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Glimpses of extra dimension models

Datta

Shaw

2023

Indian J Phys

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Revisiting the gluino mass limits in the pMSSM in the light of the latest LHC data and dark matter constraints

Mukherjee

Niyogi

Poddar

2022

Int. J. Mod. Phys. A

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The purpose of this paper is to examine the model dependence of the stringent constraints on the gluino mass obtained from the Large Hadron Collider (LHC) experiments by analyzing the Run II data using specific simplified models based on several ad hoc sparticle spectra which cannot be realized even in the fairly generic pMSSM models. We first revisit the bounds on the gluino mass placed by the ATLAS collaboration using the [Formula: see text] data. We show that the exclusion region in the [Formula: see text] plane in the pMSSM scenario sensitively depends on the mass hierarchy between the left and right squarks and composition of the lighter electroweakinos and to a lesser extent, other parameters. Most importantly, for higgsino-type lighter electroweakinos (except for the LSP), the bound on the gluino mass from this channel practically disappears. However, if such models are confronted by the ATLAS [Formula: see text] data, fairly strong limits are regained. Thus, in the pMSSM, an analysis involving a small number of channels may provide more reliable mass limits. We have also performed detailed analyses on neutralino Dark Matter (DM) constraints in the models we have studied and have found that for a significant range of LSP masses, the relic density constraints from the WMAP/PLANCK data are satisfied and LSP-gluino coannihilation plays an important role in relic density production. We have also checked the simultaneous compatibility of the models studied here with the direct DM detection, and the LHC constraints.

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Minimal and nonminimal universal extra dimension models in the light of LHC data at 13 TeV

Cited by 4 publications

References 112 publications

LHC bounds on MUED after Run 2

LHC bounds on MUED after Run 2

Glimpses of extra dimension models

Revisiting the gluino mass limits in the pMSSM in the light of the latest LHC data and dark matter constraints

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