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Zeroing in on Supersymmetric Radiation Amplitude Zeros
High Energy Physics - Phenomenology · Submitted 18 Oct 2011
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We test this technique on a previously generated model sample of the 19 dimensional parameter space of the phenomenological MSSM, and find that it is effective in determining the wino content of the neutralino.
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The abstract, sentence by sentence
Radiation amplitude zeros have long been used to test the Standard Model. Here, we consider the supersymmetric radiation amplitude zero in chargino-neutralino associated production, which can be observed at the luminosity upgraded LHC. Such an amplitude zero only occurs if the neutralino has a large wino fraction and hence this observable can be used to determine the neutralino eigenstate content. We find that this observable can be measured by comparing the p_T spectrum of the softest lepton in the trilepton $\chi_1^\pm \chi_2^0$ decay channel to that of a control process such as $\chi_1^+ \chi_1^-$ or $\chi_2^0 \chi_2^0$. We test this technique on a previously generated model sample of the 19 dimensional parameter space of the phenomenological MSSM, and find that it is effective in determining the wino content of the neutralino.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Radiation amplitude zeros have long been used to test the Standard Model. | background 1.00 | 0.04 | 0.02 | asserted 1.00 |
| s1 | Here, we consider the supersymmetric radiation amplitude zero in chargino-neutralino associated production, which can be observed at the luminosity upgraded LHC. | contribution 1.00 | 0.70 | 0.06 | hedged possibility 0.64 |
| s2 | Such an amplitude zero only occurs if the neutralino has a large wino fraction and hence this observable can be used to determine the neutralino eigenstate content. | interpretation 0.68 | 0.26 | 0.38 | asserted 0.99 |
| s3 | We find that this observable can be measured by comparing the p_T spectrum of the softest lepton in the trilepton $\chi_1^\pm \chi_2^0$ decay channel to that of a control process such as $\chi_1^+ \chi_1^-$ or $\chi_2^0 \chi_2^0$. | method 0.99 | 0.89 | 0.12 | asserted 0.95 |
| s4 | We test this technique on a previously generated model sample of the 19 dimensional parameter space of the phenomenological MSSM, and find that it is effective in determining the wino content of the neutralino. | result 0.86 | 0.96 | 0.61 | asserted 1.00 |
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The paper
Original abstract
Radiation amplitude zeros have long been used to test the Standard Model. Here, we consider the supersymmetric radiation amplitude zero in chargino-neutralino associated production, which can be observed at the luminosity upgraded LHC. Such an amplitude zero only occurs if the neutralino has a large wino fraction and hence this observable can be used to determine the neutralino eigenstate content. We find that this observable can be measured by comparing the p_T spectrum of the softest lepton in the trilepton $\chi_1^\pm \chi_2^0$ decay channel to that of a control process such as $\chi_1^+ \chi_1^-$ or $\chi_2^0 \chi_2^0$. We test this technique on a previously generated model sample of the 19 dimensional parameter space of the phenomenological MSSM, and find that it is effective in determining the wino content of the neutralino.
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How the literature uses it
1 arXiv paper cite this in 1 sentence
Papers citing it
Cites it as background 1 paper
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For instance, one has the SM process $ud̅ →γW^+$ [ref] , the high $p_T$ chargino-neutralino production of SUSY [ref] , and the lepto-quark process [ref] .
Dips at Colliders · Introduction · 0.91
What it cites · 12 sentences without a confident label
Uses data or values from 1 paper
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To evaluate the potential of our technique, we make use of a previous scan [ref] over the phenomenological MSSM (pMSSM) parameter space and examine the signature of amplitude zeros in a sample of supersymmetric models.
Supersymmetry Without Prejudice · Introduction · 0.95
Cites as background 2 papers
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Radiation amplitude zeros (RAZ), the vanishing of amplitudes of certain processes with external photons in specific kinematic regions, have been used to test the structure of the Standard Model gauge sector and search for anomalous couplings of the $W$ boson [ref] .
First study of the radiation-amplitude zero in Wgamma production and limits on anomalous WWgamma couplings at sqrt(s)=1.96 TeV · Introduction · 0.96
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Radiation amplitude zeros (RAZ), the vanishing of amplitudes of certain processes with external photons in specific kinematic regions, have been used to test the structure of the Standard Model gauge sector and search for anomalous couplings of the $W$ boson [ref] .
Measurement of W-gamma and Z-gamma production in pp collisions at sqrt(s) = 7 TeV · Introduction · 0.96
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