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Neutralinos from Chargino Decays in the Complex MSSM
High Energy Physics - Phenomenology · Submitted 2 Feb 2012
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim These corrections are important for the correct interpretation of LSP and heavier neutralino production at the LHC and at a future linear e+e- collider.
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The abstract, sentence by sentence
We review the evaluation of two-body decay modes of charginos in the Minimal Supersymmetric Standard Model with complex parameters (cMSSM). Assuming heavy scalar quarks we take into account all decay channels involving charginos, neutralinos, (scalar) leptons, Higgs bosons and SM gauge bosons. The evaluation of the decay widths is based on a full one-loop calculation including hard and soft QED radiation. Here we focus on the decays involving the Lightest Supersymmetric Particle (LSP), i.e. the lightest neutralino, or a heavier neutralino and a W boson. The higher-order corrections of the chargino decay widths can easily reach a level of \pm 10%, translating into corrections of similar size in the respective branching ratios. These corrections are important for the correct interpretation of LSP and heavier neutralino production at the LHC and at a future linear e+e- collider.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We review the evaluation of two-body decay modes of charginos in the Minimal Supersymmetric Standard Model with complex parameters (cMSSM). | contribution 0.90 | 0.39 | 0.07 | asserted 0.71 |
| s1 | Assuming heavy scalar quarks we take into account all decay channels involving charginos, neutralinos, (scalar) leptons, Higgs bosons and SM gauge bosons. | method 0.80 | 0.79 | 0.04 | asserted 0.97 |
| s2 | The evaluation of the decay widths is based on a full one-loop calculation including hard and soft QED radiation. | method 0.99 | 0.81 | 0.06 | asserted 1.00 |
| s3 | Here we focus on the decays involving the Lightest Supersymmetric Particle (LSP), i.e. the lightest neutralino, or a heavier neutralino and a W boson. | contribution 0.73 | 0.59 | 0.06 | asserted 0.95 |
| s4 | The higher-order corrections of the chargino decay widths can easily reach a level of \pm 10%, translating into corrections of similar size in the respective branching ratios. | result 1.00 | 0.81 | 0.36 | asserted 0.51 |
| s5 | These corrections are important for the correct interpretation of LSP and heavier neutralino production at the LHC and at a future linear e+e- collider. | interpretation 1.00 | 0.41 | 0.32 | asserted 1.00 |
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The paper
Original abstract
We review the evaluation of two-body decay modes of charginos in the Minimal Supersymmetric Standard Model with complex parameters (cMSSM). Assuming heavy scalar quarks we take into account all decay channels involving charginos, neutralinos, (scalar) leptons, Higgs bosons and SM gauge bosons. The evaluation of the decay widths is based on a full one-loop calculation including hard and soft QED radiation. Here we focus on the decays involving the Lightest Supersymmetric Particle (LSP), i.e. the lightest neutralino, or a heavier neutralino and a W boson. The higher-order corrections of the chargino decay widths can easily reach a level of \pm 10%, translating into corrections of similar size in the respective branching ratios. These corrections are important for the correct interpretation of LSP and heavier neutralino production at the LHC and at a future linear e+e- collider.
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How the literature uses it
1 arXiv paper cite this in 4 sentences
Papers citing it · 2 sentences without a confident label
Uses its method or tool 1 paper
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Again, here it is crucial to stress that the same renormalization scheme as for the decay of sleptons [ref] (and for slepton production from Higgs boson decays [ref] as well as from chargino and neutralino decays [ref] ) has been used.
Slepton Production at e+e- Colliders in the Complex MSSM: A Full One-Loop Analysis · Introduction · 0.89
What it cites · 8 sentences without a confident label
Uses the method or tool of 7 papers
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The diagrams and corresponding amplitudes have been obtained with [ref] .
Generating Feynman Diagrams and Amplitudes with FeynArts 3 · Renormalization of the cMSSM · 1.00
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The further evaluation has been performed with (and ) [ref] .
Automatized One-Loop Calculations in 4 and D dimensions · Renormalization of the cMSSM · 1.00
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As regularization scheme for the UV-divergences we have used constrained differential renormalization [ref] , which has been shown to be equivalent to dimensional reduction [ref] at the level [ref] .
Techniques for one-loop calculations in constrained differential renormalization · Renormalization of the cMSSM · 0.83
Discussion
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