WIMP dark matter at the International Linear Collider

Habermehl, Moritz; Berggren, M.; List, Jenny

doi:10.1103/physrevd.101.075053

Cited by 51 publications

(73 citation statements)

References 37 publications

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“…For the results presented in this paper, version 2.8.2 of Whizard [6,7] was used, compiled with extended precision option. 5 Shown in Table 1 are the cross sections for neutrino pair production, for different multiplicities of ME photons 2 Whizard always puts the two ISR photons first in the event record. This allows for easy separation of ME and ISR photons in Whizard cuts and event selection, see Appendix A.1 for an example of Sindarin scripts.…”

Section: Me-isr Mergingmentioning

confidence: 99%

“…That is why we have to use the ISR rejection procedure in Whizard instead. 5 Extended precision was crucial for the convergence of the Bhabha cross section integration at highest collision energies. (up to three) and different collision energies.…”

Section: Me-isr Mergingmentioning

confidence: 99%

“…Bounds on DM production processes with the mono-photon signature have been derived from LEP results [1][2][3][4]. Production of DM particles in this channel has also been recently considered for ILC running at 500 GeV [5]. For proper estimate of the experimental sensitivity, precise modelling of all background processes is required.…”

Section: Introductionmentioning

confidence: 99%

“…Main SM background contributions are expected to come from the radiative neutrino pair production process e + e − → ν ν γ shown in Fig. 2, which can not be distinguished from the signal process on the detector level, and the radiative Bhabha scattering e + e − → e + e − γ which contribute to the mono-photon background when both electrons escape undetected along the beam pipe [5].…”

Section: Introductionmentioning

confidence: 99%

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Simulating hard photon production with Whizard

2020

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One of the important goals of the proposed future $$\hbox {e}^{+}\hbox {e}^{-}$$ e + e - collider experiments is the search for dark matter particles using different experimental approaches. The most general search approach is based on the mono-photon signature, which is expected when production of the invisible final state is accompanied by a hard photon from initial state radiation. Analysis of the energy spectrum and angular distributions of those photons can shed light on the nature of dark matter and its interactions. Therefore, it is crucial to be able to simulate the signal and background samples in a uniform framework, to avoid possible systematic biases. The Whizard program is a flexible tool, which is widely used by $$\hbox {e}^{+}\hbox {e}^{-}$$ e + e - collaborations for simulation of many different “new physics” scenarios. We propose the procedure of merging the matrix element calculations with the lepton ISR structure function implemented in Whizard. It allows us to reliably simulate the mono-photon events, including the two main Standard Model background processes: radiative neutrino pair production and radiative Bhabha scattering. We demonstrate that cross sections and kinematic distributions of mono-photon in neutrino pair-production events agree with corresponding predictions of the $$\mathcal{KK}$$ KK MC, a Monte Carlo generator providing perturbative predictions for SM and QED processes, which has been widely used in the analysis of LEP data.

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Section: Me-isr Mergingmentioning

confidence: 99%

Section: Me-isr Mergingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simulating hard photon production with Whizard

2020

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“…29 for production of different SUSY particles and the SM background process e + e − → ννγ , for ILC running at 500 GeV [39] and 1.5 TeV CLIC [40]. A full simulation study performed for the ILD [41,42] indicates that detector effects are very important and the background levels are high, see Fig. 30 (left).…”

Section: Dark Matter Searchesmentioning

confidence: 99%

On the physics potential of ILC and CLIC

Żarnecki¹

2020

Proceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2019)

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The tiny (g-2) muon wobble from small-μ supersymmetry

Baum

Carena

Shah

et al. 2022

J. High Energ. Phys.

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A new measurement of the muon anomalous magnetic moment, gμ− 2, has been reported by the Fermilab Muon g-2 collaboration and shows a 4.2 σ departure from the most precise and reliable calculation of this quantity in the Standard Model. Assuming that this discrepancy is due to new physics, we concentrate on a simple supersymmetric model that also provides a dark matter explanation in a previously unexplored region of supersymmetric parameter space. Such interesting region can realize a Bino-like dark matter candidate compatible with all current direct detection constraints for small to moderate values of the Higgsino mass parameter |μ|. This in turn would imply the existence of light additional Higgs bosons and Higgsino particles within reach of the high-luminosity LHC and future colliders. We provide benchmark scenarios that will be tested in the next generation of direct dark matter experiments and at the LHC.

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WIMP dark matter at the International Linear Collider

Cited by 51 publications

References 37 publications

Simulating hard photon production with Whizard

Simulating hard photon production with Whizard

On the physics potential of ILC and CLIC

The tiny (g-2) muon wobble from small-μ supersymmetry

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