Composite Effective Field Theory Signal from Anomalous Quartic Gauge Couplings for ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj Productions
Parameterization of heavy effects beyond the Standard Model is available using higher-dimension operators of the effective field theory and their Wilson coefficients, where their values are not known. Experimental sensitivity to the Wilson coefficients can be significantly changed in case of the us...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Andromeda Publishing and Academic Services
2024-04-01
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| Series: | Letters in High Energy Physics |
| Subjects: | |
| Online Access: | http://journals.andromedapublisher.com/index.php/LHEP/article/view/519 |
| _version_ | 1797194135694737408 |
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| author | Artur Evgenievich Semushin Evgeny Yu. Soldatov |
| author_facet | Artur Evgenievich Semushin Evgeny Yu. Soldatov |
| author_sort | Artur Evgenievich Semushin |
| collection | DOAJ |
| description |
Parameterization of heavy effects beyond the Standard Model is available using higher-dimension operators
of the effective field theory and their Wilson coefficients, where their values are not known. Experimental
sensitivity to the Wilson coefficients can be significantly changed in case of the usage of composite
anomalous signal, which contains anomalous contributions from background processes in addition to the
conventional ones from the signal process. In this work, this approach is applied to the search for anomalous
quartic gauge couplings with seven EFT operators in the electroweak production of ZZ(→ ℓℓνν)jj and
Zγ(→ ννγ)jj in pp collisions. For the majority of coefficients, sensitivity in the former channel is smaller
than that in the latter one. However, it is shown, that composite anomalous signal affects ZZ(→ ℓℓνν)jj
production stronger than Zγ(→ ννγ)jj production, making sensitivities closer. One-dimensional limits on
theWilson coefficients are changed up to 27.3% and 9.7% due to the background anomalous contributions
in ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj productions, respectively.
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| first_indexed | 2024-04-24T05:51:28Z |
| format | Article |
| id | doaj.art-ad72be1d4be546f7b8078762a544dee3 |
| institution | Directory Open Access Journal |
| issn | 2632-2714 |
| language | English |
| last_indexed | 2024-04-24T05:51:28Z |
| publishDate | 2024-04-01 |
| publisher | Andromeda Publishing and Academic Services |
| record_format | Article |
| series | Letters in High Energy Physics |
| spelling | doaj.art-ad72be1d4be546f7b8078762a544dee32024-04-23T12:25:13ZengAndromeda Publishing and Academic ServicesLetters in High Energy Physics2632-27142024-04-012024110.31526/lhep.2024.519Composite Effective Field Theory Signal from Anomalous Quartic Gauge Couplings for ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj ProductionsArtur Evgenievich Semushin0Evgeny Yu. Soldatov1National Research Nuclear University MEPhI, Moscow, Russia; A.Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan, ArmeniaNational Research Nuclear University MEPhI, Moscow, Russia Parameterization of heavy effects beyond the Standard Model is available using higher-dimension operators of the effective field theory and their Wilson coefficients, where their values are not known. Experimental sensitivity to the Wilson coefficients can be significantly changed in case of the usage of composite anomalous signal, which contains anomalous contributions from background processes in addition to the conventional ones from the signal process. In this work, this approach is applied to the search for anomalous quartic gauge couplings with seven EFT operators in the electroweak production of ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj in pp collisions. For the majority of coefficients, sensitivity in the former channel is smaller than that in the latter one. However, it is shown, that composite anomalous signal affects ZZ(→ ℓℓνν)jj production stronger than Zγ(→ ννγ)jj production, making sensitivities closer. One-dimensional limits on theWilson coefficients are changed up to 27.3% and 9.7% due to the background anomalous contributions in ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj productions, respectively. http://journals.andromedapublisher.com/index.php/LHEP/article/view/519Standard Modeleffective field theoryvector boson scatteringquartic gauge couplingcollider experiment |
| spellingShingle | Artur Evgenievich Semushin Evgeny Yu. Soldatov Composite Effective Field Theory Signal from Anomalous Quartic Gauge Couplings for ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj Productions Letters in High Energy Physics Standard Model effective field theory vector boson scattering quartic gauge coupling collider experiment |
| title | Composite Effective Field Theory Signal from Anomalous Quartic Gauge Couplings for ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj Productions |
| title_full | Composite Effective Field Theory Signal from Anomalous Quartic Gauge Couplings for ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj Productions |
| title_fullStr | Composite Effective Field Theory Signal from Anomalous Quartic Gauge Couplings for ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj Productions |
| title_full_unstemmed | Composite Effective Field Theory Signal from Anomalous Quartic Gauge Couplings for ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj Productions |
| title_short | Composite Effective Field Theory Signal from Anomalous Quartic Gauge Couplings for ZZ(→ ℓℓνν)jj and Zγ(→ ννγ)jj Productions |
| title_sort | composite effective field theory signal from anomalous quartic gauge couplings for zz llνν jj and zγ ννγ jj productions |
| topic | Standard Model effective field theory vector boson scattering quartic gauge coupling collider experiment |
| url | http://journals.andromedapublisher.com/index.php/LHEP/article/view/519 |
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