Vector Boson Scattering at High Energy at the LHC

Idárraga, J.; Azuelos, G.; Delsart, P. A.

doi:10.1142/9789812776105_0027

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Event Signature and Background1

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2011

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“…t t will be produced with an enormous cross section at the LHC (see Table for all cross sections) and it has to be taken into account in realistic simulations. Even though, previous studies have shown that it is not a real competitor for signals with a final state composed by 2 jets + / E T as shown in [2](p.1595), or other combinations of leptonic, hadronic plus / E T final states as studied in [24]. One of the advantages is that ATLAS has b-tagging capability, and whenever an event clearly contains a b-quark jet, we can reject it.…”

Section: Event Signature and Backgroundmentioning

confidence: 95%

Signature of sub GeV dark matter particles at the LHC and the Tevatron

Vásquez

Bœhm²,

Idárraga³

2011

Phys. Rev. D

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In this letter, we investigate the production of light dark matter particles at LHC in light of the model (N = 2 SUSY inspired) proposed in Ref. [1] and demonstrate that they will be copiously produced if the colored messengers F q are lighter than 1 TeV. We expect up to 10 6 events if m F q ≃ 500 GeV, assuming a ∼1 f b −1 luminosity. In addition, we show that, even if m F q > O(1) TeV, searches for F q production at LHC are promising because a kinematical signature can be used to separate the signal from background. This signature is similar to that expected in supersymmetric scenarios. Hence, our study shows that most of the m F q range could be constrained using LHC data. This should encourage further studies since they could infirm/confirm the MeV DM scenario.

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Section: Event Signature and Backgroundmentioning

confidence: 95%