Missing Energy plus Jet in the SMEFT
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866913479698415616 |
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| author | Hiller, Gudrun Wendler, Daniel |
| author_facet | Hiller, Gudrun Wendler, Daniel |
| contents | We study the production of dineutrinos in proton-proton collisions, with large missing transverse energy and an energetic jet as the experimental signature. Recasting a search from the ATLAS collaboration we work out constraints on semileptonic four-fermion operators, gluon and electroweak dipole operators and $Z$-penguins in the SMEFT. All but the $Z$-penguin operators experience energy-enhancement. Constraints on gluon dipole operators are the strongest, probing new physics up to 14 TeV, and improve over existing ones from collider studies. Limits on FCNC four-fermion operators are competitive with Drell-Yan production of dileptons, and improve on those for tau final states. For left-handed $|Δs|=|Δd|=1$ and right-handed $|Δc|=|Δu|=1$ transitions these are the best available limits, also considering rare kaon and charm decays. We estimate improvements for the $3000 \;\mathrm{fb}^{-1}$ High Luminosity Large Hadron Collider. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_17063 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Missing Energy plus Jet in the SMEFT Hiller, Gudrun Wendler, Daniel High Energy Physics - Phenomenology We study the production of dineutrinos in proton-proton collisions, with large missing transverse energy and an energetic jet as the experimental signature. Recasting a search from the ATLAS collaboration we work out constraints on semileptonic four-fermion operators, gluon and electroweak dipole operators and $Z$-penguins in the SMEFT. All but the $Z$-penguin operators experience energy-enhancement. Constraints on gluon dipole operators are the strongest, probing new physics up to 14 TeV, and improve over existing ones from collider studies. Limits on FCNC four-fermion operators are competitive with Drell-Yan production of dileptons, and improve on those for tau final states. For left-handed $|Δs|=|Δd|=1$ and right-handed $|Δc|=|Δu|=1$ transitions these are the best available limits, also considering rare kaon and charm decays. We estimate improvements for the $3000 \;\mathrm{fb}^{-1}$ High Luminosity Large Hadron Collider. |
| title | Missing Energy plus Jet in the SMEFT |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2403.17063 |