Search for inelastic dark matter in events with two displaced muons and missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Fuente:
arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866929224606023680 |
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| author | CMS Collaboration |
| author_facet | CMS Collaboration |
| contents | A search for dark matter in events with a displaced nonresonant muon pair and missing transverse momentum is presented. The analysis is performed using an integrated luminosity of 138 fb$^{-1}$ of proton-proton (pp) collision data at a center-of-mass energy of 13 TeV produced by the LHC in 2016-2018. No significant excess over the predicted backgrounds is observed. Upper limits are set on the product of the inelastic dark matter production cross section $σ$(pp $\to$ A' $\to$ $χ_1$ $χ_2$) and the decay branching fraction $\mathcal{B}$($χ_2$ $\to$ $χ_1 μ^+ μ^-$), where A' is a dark photon and $χ_1$ and $χ_2$ are states in the dark sector with near mass degeneracy. This is the first dedicated collider search for inelastic dark matter. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_11649 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Search for inelastic dark matter in events with two displaced muons and missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV CMS Collaboration High Energy Physics - Experiment A search for dark matter in events with a displaced nonresonant muon pair and missing transverse momentum is presented. The analysis is performed using an integrated luminosity of 138 fb$^{-1}$ of proton-proton (pp) collision data at a center-of-mass energy of 13 TeV produced by the LHC in 2016-2018. No significant excess over the predicted backgrounds is observed. Upper limits are set on the product of the inelastic dark matter production cross section $σ$(pp $\to$ A' $\to$ $χ_1$ $χ_2$) and the decay branching fraction $\mathcal{B}$($χ_2$ $\to$ $χ_1 μ^+ μ^-$), where A' is a dark photon and $χ_1$ and $χ_2$ are states in the dark sector with near mass degeneracy. This is the first dedicated collider search for inelastic dark matter. |
| title | Search for inelastic dark matter in events with two displaced muons and missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2305.11649 |