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Search for heavy antimatter and energetic photons in cosmic rays with the AMS-01 detector in space

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Thesis

Reference

Search for heavy antimatter and energetic photons in cosmic rays with the AMS-01 detector in space

CRISTINZIANI, Markus

Abstract

Une recherche d'antimatière lourde (¦Z¦>2) avec le détecteur AMS-01, embarqué sur la navette spatiale Discovery en juin 1998, est présentée. L'analyse des données n'identifie aucun candidat d'antimatière acceptable parmi un échantillon de 1.65 x 10⁵ noyaux avec 2

CRISTINZIANI, Markus. Search for heavy antimatter and energetic photons in cosmic rays with the AMS-01 detector in space . Thèse de doctorat : Univ. Genève, 2002, no. Sc.

3331

URN : urn:nbn:ch:unige-1241

DOI : 10.13097/archive-ouverte/unige:124

Available at:

http://archive-ouverte.unige.ch/unige:124

Disclaimer: layout of this document may differ from the published version.

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0 2000 4000 6000 8000 10000 12000 14000

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PMT

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η K side Q tot raw

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Signal/Noise

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0 2500 5000 7500 10000 x 10

0 5 10 15 20

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Distance (cm)

Events

0 2000 4000 6000 8000 10000

0 2 4 6 8 10 12 14 16 18 20

All events Pl. 3 bar 10 events

time of flight (1/β)

Events

0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000

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all: 1037159 good: 700737

dE/dx (ADC counts)

Events

0 2500 5000 7500 10000 12500 15000 17500 20000 22500

0 500 1000 1500 2000

K side clusters

all: 890708 good: 579229

dE/dx (ADC counts)

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0 500 1000 1500

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Number of clusters

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0 200 400 600 800 1000 1200 1400 x 10 2

0 1 2 3 4 5 6

K side all good consistent

Number of clusters

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0 50 100

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ID Entries

125304 11806

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125305 23595

0 100 200 300

20 30 40

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0 200 400

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0 200 400 600 800

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