Advanced Cosmic Ray Research: Insights from AMS-02 Data and Antimatter Detection
The AMS-02 (Alpha Magnetic Spectrometer) project offers unprecedented insights into cosmic rays, focusing on the high-statistics study of the cosmic ray spectrum. Key objectives include isotope and antiparticle spectrum separation, particularly targeting 10Be with a significant half-life. The project also investigates dark matter through indirect detection methods, exploring signals from annihilation processes in the galactic halo. With advanced modeling of cosmic ray transport and solar modulation, the AMS-02 enhances our understanding of cosmic rays and their origin, paving the way for breakthroughs in astrophysics.
Advanced Cosmic Ray Research: Insights from AMS-02 Data and Antimatter Detection
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Presentation Transcript
ISS-present status Trent Martin NASA AMS Project Manager
AMS-02 layout: energy and type separation of particles Electron, positron, proton, antiproton, isotopes…. 3 Milano 20 maggio 2002
1 year • High statistics study of • the cosmic ray spectrum • Isotope separation • Antiparticle spectrum Antimatter search on anti-He with a sensitivity 103 better than current limits 10Be is specially interesting for its half time (t1/2 = 1.51 106 years) of the same order than the confinement time of the CR in the Galaxy • After 3 years, AMS will collect ~10510Be
Dark Matter Search • INDIRECT DETECTION: in CRs • signals due to χχ annihilation in the galactic halo • .→ neutrinos • .→ gamma-rays • .→ antiprotons, positrons, antideuterons • ASTROPHYSICS OF COSMIC RAYS!! CR Transport equation in Diffusion Models: in 2D with turbolence convection, energy changing and sources in the halo
AMS-02 data • Secondary antiprotons: background when looking for exotic component • To calculate secondary • antiproton fluxes: • .→ p and He in CR (measured flux) • .→ nuclear cross sections (data + Mcarlo) • .→ diffusion models
From interstellar to Earth CR flux-1 Fokker-Plank equation of propagation in 2 or 3D Heliosphere (Solar) MODULATION Solar activity and polarity + DRIFT! Diffusion (r) Diffusion () Adiabatic loss Convection
From interstellar to Earth CR flux-2 Recontsruct CR trajectories: TF calculation Magnetosphere MODULATION TF calculation AMS-02 predictions
Tesi di laurea breve disponibili • Eliosfera • Modulazione solare da 1D a 2D • Moti di deriva nell’eliosfera • CR modulation per i pianeti del sistema solare (Marte etc.) • Modulazione nelle fasi A>0 e A<0 • Magnetosfera • TF per elio e confronto dati AMS01 • TF per elettroni e confronto dati AMS01 • TF 2009 e previsioni Elio AMS-02 • TF per ioni (C-Fe) e previsioni AMS02 • On-line running code
