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Electroweak corrections to Neutralino and Chargino decays into a W-boson in the (N)MSSM
High Energy Physics - Phenomenology · Submitted 29 Nov 2010
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Furthermore we show that these corrections show a strong parameter dependence and usually are in the range of 1-10 percent if the neutralino involved is a higgsino or wino like state.
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The abstract, sentence by sentence
We present the complete electroweak one-loop corrections to the partial widths for two-body decays of a chargino (neutralino) into a W-boson and a neutralino (chargino). We perform the calculation for the minimal and the next-to-minimal supersymmetric standard model using an on-shell renormalization scheme. Particular attention is paid to the question of gauge invariance which is achieved using the so-called pinch technique. Furthermore we show that these corrections show a strong parameter dependence and usually are in the range of 1-10 percent if the neutralino involved is a higgsino or wino like state. However, in case of a bino-like or a singlino-like neutralino the corrections can go up to 50% and more. Moreover we present the public program CNNDecays performing these calculations.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present the complete electroweak one-loop corrections to the partial widths for two-body decays of a chargino (neutralino) into a W-boson and a neutralino (chargino). | contribution 1.00 | 0.96 | 0.18 | asserted 1.00 |
| s1 | We perform the calculation for the minimal and the next-to-minimal supersymmetric standard model using an on-shell renormalization scheme. | method 0.94 | 0.96 | 0.05 | asserted 1.00 |
| s2 | Particular attention is paid to the question of gauge invariance which is achieved using the so-called pinch technique. | method 0.99 | 0.89 | 0.05 | asserted 1.00 |
| s3 | Furthermore we show that these corrections show a strong parameter dependence and usually are in the range of 1-10 percent if the neutralino involved is a higgsino or wino like state. | result 1.00 | 0.94 | 0.31 | asserted 0.94 |
| s4 | However, in case of a bino-like or a singlino-like neutralino the corrections can go up to 50% and more. | result 1.00 | 0.92 | 0.23 | asserted 0.53 |
| s5 | Moreover we present the public program CNNDecays performing these calculations. | contribution 0.98 | 0.93 | 0.06 | asserted 1.00 |
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The paper
Original abstract
We present the complete electroweak one-loop corrections to the partial widths for two-body decays of a chargino (neutralino) into a W-boson and a neutralino (chargino). We perform the calculation for the minimal and the next-to-minimal supersymmetric standard model using an on-shell renormalization scheme. Particular attention is paid to the question of gauge invariance which is achieved using the so-called pinch technique. Furthermore we show that these corrections show a strong parameter dependence and usually are in the range of 1-10 percent if the neutralino involved is a higgsino or wino like state. However, in case of a bino-like or a singlino-like neutralino the corrections can go up to 50% and more. Moreover we present the public program CNNDecays performing these calculations.
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References
How the literature uses it
10 arXiv papers cite this in 25 sentences
Papers citing it · 12 sentences without a confident label
Builds on it 1 paper
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For this aim we extend the on-shell scheme presented in [ref] for the decays $χ̃_i^0→χ̃_j^±W^∓$ within the MSSM and the NMSSM to the models considered here.
On-shell renormalization of neutralino and chargino mass matrices in R-parity violating models - Correlation between LSP decays and neutrino mixing angles revisited · Introduction · 1.00
Uses its method or tool 2 papers
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We closely follow [ref] and start with the one-loop contributions to neutralino masses $δ_n^⊛$ and chargino masses $δ_c^⊛$ [equation] 0pt with the diagonalized mass matrices $_dia.^⊛$ and their counterterms $δ_dia.^⊛$: [equation] 0pt
On-shell renormalization of neutralino and chargino mass matrices in R-parity violating models - Correlation between LSP decays and neutrino mixing angles revisited · Common basic principles · 0.98
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They are obtained with MaCoR [ref] .
Phenomenology of on-shell Higgs production in the MSSM with complex parameters · Formulas: Higgs-quark and Higgs-squark couplings · 1.00
Compares with it 1 paper
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For a discussion of these comparisons see Refs. [ref] for the MSSM, Refs. [ref] for the NMSSM, Ref. [ref] for the NMSSM with CP violation, and Ref. [ref] for the MSSM with bilinear $R$-parity violation.
SARAH 3.2: Dirac Gauginos, UFO output, and more · Vertices · 0.99
Cites it as support 1 paper
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We analytically checked in the CMS or the OS scheme that the gauge dependent term of the mass counterterms for the neutrinos of the GN model comes only from the tadpole contributions, eq:deltam gauge, as suggested in [ref] .
Gauge dependence of tadpole and mass renormalization for a seesaw extended 2HDM · Discussion and conclusions · 0.96
Cites it as background 3 papers
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The on-shell renormalization of neutralino and chargino masses in the MSSM and NMSSM was extensively discussed in [ref] .
On-shell renormalization of neutralino and chargino mass matrices in R-parity violating models - Correlation between LSP decays and neutrino mixing angles revisited · Bilinear $R$-parity breaking · 0.92
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In the last few years, there has been intense work on the electroweak properties of dark matter since they might be relevant for the calculation of DM decays and annihilations, [ref] , which have consequences in astrophysical processes [ref] and are important in indirect astrophysical searches for DM, as in the calculation of the annihilation cross section of the DM itself.
Anapole moment of the lightest neutralino in the cMSSM · Introduction · 0.86
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A detailed analysis of the $W^±$ mode is performed in [ref] .
Light NMSSM Higgs bosons in SUSY cascade decays at the LHC · SUSY cascades · 0.92
What it cites · 23 sentences without a confident label
Uses the method or tool of 13 papers
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In this paper we will apply the technique presented in [ref] .
Gauge dependence of the on-shell renormalized mixing matrices · Introduction · 1.00
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In case of the MSSM we follow [ref] .
One-loop corrections to the chargino and neutralino mass matrices in the on-shell scheme · MSSM · 0.88
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To achieve this we use the method proposed in [ref] which is inspired by the pinch technique [ref] , which defines gauge independent form factors for gauge bosons.
Gauge independent transverse and longitudinal self-energies and vertices via the pinch technique · Gauge invariance · 1.00
Uses data or values from 2 papers
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In Table [ref] we recall the most important parameters of the benchmark scenarios used in our analysis based on [ref] and [ref] .
Benchmark scenarios for the NMSSM · NLO masses and decay widths for benchmark scenarios · 0.93
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In Table [ref] we recall the most important parameters of the benchmark scenarios used in our analysis based on [ref] and [ref] .
Phenomenology of the General NMSSM with Gauge Mediated Supersymmetry Breaking · NLO masses and decay widths for benchmark scenarios · 0.93
Compares with 1 paper
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Tables [ref] and [ref] contain beside the tree-level and one-loop corrected widths the correction factor [equation] which is also split in the parts $δ_1=δ_1(q̃,q)$ due to squark and quark corrections and $δ_2$ containing the other contributions, which includes the hard photon emission for comparison with [ref] .
Supersymmetric Electroweak Corrections to the Chargino Decay into Neutralino and W Boson · NLO masses and decay widths for benchmark scenarios · 0.98
Cites as background 17 papers
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Since then, some papers proposed different solutions to the problem addressed above: whereas [ref] argued that missing absorptive parts due to the unstable nature of the external particles have to be included in the calculation, [ref] proposed a method on how to construct a gauge invariant counterterm for the mixing matrices inspired by the pinch technique [ref] , which defines gauge independent form factors for gauge bosons.
Flavour Mixing, Gauge Invariance and Wave-function Renormalisation · Introduction · 0.86
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Since then, some papers proposed different solutions to the problem addressed above: whereas [ref] argued that missing absorptive parts due to the unstable nature of the external particles have to be included in the calculation, [ref] proposed a method on how to construct a gauge invariant counterterm for the mixing matrices inspired by the pinch technique [ref] , which defines gauge independent form factors for gauge bosons.
Gauge independent transverse and longitudinal self-energies and vertices via the pinch technique · Introduction · 0.86
-
Since then, some papers proposed different solutions to the problem addressed above: whereas [ref] argued that missing absorptive parts due to the unstable nature of the external particles have to be included in the calculation, [ref] proposed a method on how to construct a gauge invariant counterterm for the mixing matrices inspired by the pinch technique [ref] , which defines gauge independent form factors for gauge bosons.
Gauge dependence of the on-shell renormalized mixing matrices · Introduction · 0.86
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