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Probing compressed dark sectors at 100 TeV in the dileptonic mono-Z channel

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Probing compressed dark sectors at 100 TeV in the dileptonic mono-Z channel. / Mahbubani, Rakhi; Zurita, Jose.

In: Journal of High Energy Physics, Vol. 2018, No. 092, 14.12.2018.

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@article{10e4459c26474717bb8f4c200a6b6a97,
title = "Probing compressed dark sectors at 100 TeV in the dileptonic mono-Z channel",
abstract = " We examine the sensitivity at a future 100 TeV proton-proton collider to compressed dark sectors whose decay products are invisible due to below-threshold energies and/or small couplings to the Standard Model. This scenario could be relevant to models of WIMP dark matter, where the lightest New Physics state is an (isolated) electroweak multiplet whose lowest component is stable on cosmological timescales. We rely on the additional emission of a hard on-shell $Z$-boson decaying to leptons, a channel with low background systematics, and include a careful estimate of the real and fake backgrounds to this process in our analysis. We show that an integrated luminosity of 30 ab$^{-1}$ would allow exclusion of a TeV-scale compressed dark sector with inclusive production cross section of 0.3 fb, for 1\% background systematic uncertainty and splittings below 5 GeV. This translates to exclusion of a pure higgsino (wino) multiplet with mass of 500 (970) GeV. ",
keywords = "hep-ph",
author = "Rakhi Mahbubani and Jose Zurita",
note = "22 pages, 9 figures",
year = "2018",
month = dec,
day = "14",
doi = "10.1007/JHEP12(2018)092",
language = "English",
volume = "2018",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "092",

}

RIS

TY - JOUR

T1 - Probing compressed dark sectors at 100 TeV in the dileptonic mono-Z channel

AU - Mahbubani, Rakhi

AU - Zurita, Jose

N1 - 22 pages, 9 figures

PY - 2018/12/14

Y1 - 2018/12/14

N2 - We examine the sensitivity at a future 100 TeV proton-proton collider to compressed dark sectors whose decay products are invisible due to below-threshold energies and/or small couplings to the Standard Model. This scenario could be relevant to models of WIMP dark matter, where the lightest New Physics state is an (isolated) electroweak multiplet whose lowest component is stable on cosmological timescales. We rely on the additional emission of a hard on-shell $Z$-boson decaying to leptons, a channel with low background systematics, and include a careful estimate of the real and fake backgrounds to this process in our analysis. We show that an integrated luminosity of 30 ab$^{-1}$ would allow exclusion of a TeV-scale compressed dark sector with inclusive production cross section of 0.3 fb, for 1\% background systematic uncertainty and splittings below 5 GeV. This translates to exclusion of a pure higgsino (wino) multiplet with mass of 500 (970) GeV.

AB - We examine the sensitivity at a future 100 TeV proton-proton collider to compressed dark sectors whose decay products are invisible due to below-threshold energies and/or small couplings to the Standard Model. This scenario could be relevant to models of WIMP dark matter, where the lightest New Physics state is an (isolated) electroweak multiplet whose lowest component is stable on cosmological timescales. We rely on the additional emission of a hard on-shell $Z$-boson decaying to leptons, a channel with low background systematics, and include a careful estimate of the real and fake backgrounds to this process in our analysis. We show that an integrated luminosity of 30 ab$^{-1}$ would allow exclusion of a TeV-scale compressed dark sector with inclusive production cross section of 0.3 fb, for 1\% background systematic uncertainty and splittings below 5 GeV. This translates to exclusion of a pure higgsino (wino) multiplet with mass of 500 (970) GeV.

KW - hep-ph

U2 - 10.1007/JHEP12(2018)092

DO - 10.1007/JHEP12(2018)092

M3 - Article

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 092

ER -