Calorimetric mode photon analysis using the alpha magnetic spectrometer (AMS-02)

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2015

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Türkoğlu, Cenk

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Alpha Magnetic Spectrometer (AMS-02) is a particle detector built for the purpose of detecting primordial anti-matter and signals of dark matter. AMS-02 operates as an external module on the International Space Station and will be operational for at least 10 years. For finding traces of the strongest dark matter candidate, neutralino, peaks in the background positron, antiproton and gamma ray flux have to be studied. For this purpose, AMS-02 includes a permanent magnet that bends particles and anti-particles in opposite directions, a tracking system and high precision detectors (Transition Radiation Detector (TRD), Electromagnetic Calorimeter (ECAL)) which identifies electrons and positrons among other cosmic particles. There are two ways to do photon analysis: conversion mode and calorimetric mode. Conversion mode inludes the photons which start their showers in the upper parts of AMS-02 detector. In calorimetric mode, photons which convert into electron-positron pairs after entering Electromagnetic Calorimeter (ECAL) are taken into account. In this thesis, calorimetric photons will be studied above 5 GeV.

Subject Keywords

Photons., Dark matter (Astronomy)., Alpha magnetic spectrometer.

URI

http://etd.lib.metu.edu.tr/upload/12618577/index.pdf
https://hdl.handle.net/11511/24501

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

C. Türkoğlu, “Calorimetric mode photon analysis using the alpha magnetic spectrometer (AMS-02),” M.S. - Master of Science, Middle East Technical University, 2015.