Search for Fractional Charges in Cosmic Rays with Ams

TL;DR

This paper reports preliminary results from AMS-01's search for fractional charge particles in cosmic rays, setting flux limits based on energy deposition data collected at high altitude.

Contribution

It presents the first analysis of cosmic ray data for fractional charges using AMS-01, focusing on 2/3 charged leptons and establishing preliminary flux limits.

Findings

No fractional charge particles detected within sensitivity limits.

Preliminary flux limits for fractional charges are established.

Analysis demonstrates AMS-01's capability to search for exotic particles.

Abstract

Preliminary results on the flux of non strongly-interacting, fractionally charged particles in primary cosmic rays at 400 Km above sea level are given. Cosmic ray data collected by AMS-01 in June 1998 have been analysed on the hypotheses of 2/3 charged leptons. The search is carried on by looking at the energy deposition measurements by the time of flight system scintillator counters. A preliminary flux limit is given.