Publisher’s Note: Sneutrino as the lightest supersymmetric particle in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">B</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>minimal supergravity models and signals at the LHC [Phys. Rev. D<b>79</b>, 035003 (2009)]

Bernhardt, M. A.; Das, S.; Dreiner, Herbert K.; Grab, S.

doi:10.1103/physrevd.79.039905

Cited by 11 publications

(32 citation statements)

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“…This can lead to dramatically different signatures at colliders [26][27][28]. Within the B 3 mSUGRA model, certain non-neutralino LSP candidates are preferred [26,29,30]. In particular for small R-parity violating couplings the lightest scalar tau, the stau, is a possible LSP in large regions of the mSUGRA parameter space.…”

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confidence: 99%

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Stau as the lightest supersymmetric particle inR-parity violating supersymmetric models: Discovery potential with early LHC data

et al. 2011

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We investigate the discovery potential of the LHC experiments for R-parity violating supersymmetric models with a stau as the lightest supersymmetric particle (LSP) in the framework of minimal supergravity. We classify the final states according to their phenomenology for different R-parity violating decays of the LSP. We then develop event selection cuts for a specific benchmark scenario with promising signatures for the first beyond the Standard Model discoveries at the LHC. For the first time in this model, we perform a detailed signal over background analysis. We use fast detector simulations to estimate the discovery significance taking the most important Standard Model backgrounds into account. Assuming an integrated luminosity of 1 fb −1 at a center-of-mass energy of √ s = 7 TeV, we perform scans in the parameter space around the benchmark scenario we consider.We then study the feasibility to estimate the mass of the stau-LSP. We briefly discuss difficulties, which arise in the identification of hadronic tau decays due to small tau momenta and large particle multiplicities in our scenarios.

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confidence: 99%

“…Any other supersymmetric particle is possible [24,25]. This can lead to dramatically different signatures at colliders [26][27][28]. Within the B 3 mSUGRA model, certain non-neutralino LSP candidates are preferred [26,29,30].…”

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Stau as the lightest supersymmetric particle inR-parity violating supersymmetric models: Discovery potential with early LHC data

et al. 2011

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“…We now show that a negative A 0 with a large magnitude enhances the (negative) λ ijk contribution to the Mlk R mass. This discussion is similar to the case of a sneutrino LSP [49].…”

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confidence: 75%

“…Ref. [49]) the running is independent of the strong coupling g 3 and the gluino mass M 3 . According to Eq.…”

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confidence: 99%

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Discovery potential of selectron or smuon as the lightest supersymmetric particle at the LHC

Dreiner¹,

Grab

Stefaniak

2011

Phys. Rev. D

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We investigate the LHC discovery potential of R-parity violating supersymmetric models with a right-handed selectron or smuon as the lightest supersymmetric particle (LSP). These LSPs arise naturally in R-parity violating minimal supergravity models. We classify the hadron collider signatures and perform for the first time within these models a detailed signal over background analysis. We develop an inclusive three-lepton search and give prospects for a discovery at a center-of-mass energy of √ s = 7 TeV as well as √ s = 14 TeV. There are extensive parameter regions which the LHC can already test with √ s = 7 TeV and an integrated luminosity of 1 fb −1 . We also propose a method for the mass reconstruction of the supersymmetric particles within our models at √ s = 14 TeV.

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Discrimination of low missing energy look-alikes at the LHC

Ghosh

Mukhopadhyay

Mukhopadhyaya

2010

J. High Energ. Phys.

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The problem of discriminating possible scenarios of TeV scale new physics with large missing energy signature at the Large Hadron Collider (LHC) has received some attention in the recent past. We consider the complementary, and yet unexplored, case of theories predicting much softer missing energy spectra. As there is enough scope for such models to fake each other by having similar final states at the LHC, we have outlined a systematic method based on a combination of different kinematic features which can be used to distinguish among different possibilities. These features often trace back to the underlying mass spectrum and the spins of the new particles present in these models. As examples of "low missing energy look-alikes", we consider Supersymmetry with R-parity violation, Universal Extra Dimensions with both KK-parity conserved and KK-parity violated and the Littlest Higgs model with T-parity violated by the Wess-Zumino-Witten anomaly term. Through detailed Monte Carlo analysis of the four and higher lepton final states predicted by these models, we show that the models in their minimal forms may be distinguished at the LHC, while non-minimal variations can always leave scope for further confusion. We find that, for strongly interacting new particle mass-scale ~600 GeV (1 TeV), the simplest versions of the different theories can be discriminated at the LHC running at sqrt{s}=14 TeV within an integrated luminosity of 5 (30) fb^{-1}.Comment: 40 pages, 10 figures; v2: Further discussions, analysis and one figure added, ordering of certain sections changed, minor modifications in the abstract, version as published in JHE

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Publisher’s Note: Sneutrino as the lightest supersymmetric particle inB3minimal supergravity models and signals at the LHC [Phys. Rev. D79, 035003 (2009)]

Abstract: Publisher's Note: Sneutrino as the lightest supersymmetric particle in B 3 minimal supergravity models and signals at the LHC [Phys. Rev. D 79, 035003 (2009)]

Cited by 11 publications

References 0 publications

Stau as the lightest supersymmetric particle inR-parity violating supersymmetric models: Discovery potential with early LHC data

Stau as the lightest supersymmetric particle inR-parity violating supersymmetric models: Discovery potential with early LHC data

Discovery potential of selectron or smuon as the lightest supersymmetric particle at the LHC

Discrimination of low missing energy look-alikes at the LHC

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