What question did this study set out to answer?

The central aim is to search for neutrino signals from WIMPs, specifically neutralinos, originating from the Earth and the Sun.

March 5, 2026Open Access

Search for WIMPS Using Upward-Going Muons in MACRO

Key Points

The central aim is to search for neutrino signals from WIMPs, specifically neutralinos, originating from the Earth and the Sun.
Analyzed 971 events from the Sun and 642 events from the Earth.
Compared events to atmospheric neutrino background.
Calculated flux limits over various search cones around the sources.
Events detected were compatible with atmospheric neutrinos.
Flux limits were derived based on neutralino mass and search angles.
Results were compared with existing supersymmetric models.

Abstract

We present update results on the search for neutrino signal from the core of the Earth and of the Sun induced by Weakly Interacting Massive Particles (WIMPs). In this paper we concentrate on neutralinos as WIMP Candidates. The 971 and 642 events used respectively for the search from the Sun and from the Earth are compatible with the background of atmospheric neutrinos. Consequently we calculate flux limits for varoius search cones around these sources. Limits as a function of the neutralino mass are given and compared to the supersymmetric (SUSY) models.

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