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POKER

Financiado

Positron resonant annihilation into darK mattER

"The goal of POKER is to establish and demonstrate a new approach to search for light dark matter, based on a missing energy measurement with a positron-beam, active thick-target setup. Light dark matter is the new compelling hypo... ver más

28/02/2026

INFN

1M€

Presupuesto del proyecto: 1M€

Líder del proyecto

ISTITUTO NAZIONALE DI FISICA NUCLEARE No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Ver 2 Participantes

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2020-08-14

ERC-2020-STG: ERC STARTING GRANTS

I+D

Cerrada hace 5 años

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2 Participantes

INFN

1.48M€ | Lider

HERRAMIENTAS DE DIAMANTE

282.48K€ | Participante

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Duración del proyecto: 66 meses Fecha Inicio: 2020-08-14
Fecha Fin: 2026-02-28

Líder del proyecto

ISTITUTO NAZIONALE DI FISICA NUCLEARE No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 1M€

Descripción del proyecto "The goal of POKER is to establish and demonstrate a new approach to search for light dark matter, based on a missing energy measurement with a positron-beam, active thick-target setup. Light dark matter is the new compelling hypothesis that identifies dark matter with new sub-GeV ""Hidden Sector"" states, neutral under Standard Model interactions and interfacing with our world through a new force. Accelerator-based searches at the intensity frontier are uniquely suited to explore it. However, current and planned efforts are either limited by the low sensitivity or the high backgrounds. This calls for a major breakthrough in the field. The proposed approach overcomes this challenge. The new technique, based on light dark matter production through positron annihilation on atomic electrons, is characterized by a larger signal yield compared to previously explored reactions, and by a unique signal signature resulting from the underlying reaction dynamics: a peak in the missing energy distribution. The re-analysis of traditional electron-beam missing energy results, where low-energy secondary positrons are present, has already shown the potential of this technique. POKER will demonstrate its sensitivity by preparing and running a pilot experiment at the CERN H4 beamline with an optimized detector. The test must fulfill strong requirements: the active thick-target must be capable of detecting each impinging particle at very large (MHz) rate, with excellent energy resolution, and to operate in a high radiation dose environment. POKER will set the basis of the first optimized light dark matter search at a positron-beam facility, enabling sensitivity to a large variety of physics cases, from minimal models to more elaborate Hidden Sectors scenarios - such as the ""Strongly Interacting Massive Particles"" conjecture. The pilot run itself will explore a currently unknown territory in the Hidden Sector parameters space, strengthening even more the POKER physics case."

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