Indirect dark matter search with the AMS-02 detector

• Grant number: 14/19149-7
• Support Opportunities: Research Grants - Young Investigators Grants
• Start date: February 01, 2015
• End date: January 31, 2018
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Manuela Vecchi
• Grantee: Manuela Vecchi
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant(s): 14/50747-8 - Indirect dark matter search with AMS-02 data, AP.R SPRINT
• Associated scholarship(s): 16/25202-3 - Detection of positrons with the AMS-02 detector and phenomenological implications, BP.IC; 16/10222-9 - Electrons detection with the AMS-02 experiment, BP.MS; 15/13533-2 - Simulation of dark matter events detected by the AMS-02 experiment, BP.IC

Abstract

Between the most fascinating subjects in modern physics, the search for primordial antimatter as well as the understanding of the nature of dark matter (DM) can be explored by detecting cosmic rays. If DM is made of Weakly Interacting Massive Particles (WIMPs), charged and neutral particles are expected as a consequence of their annihilation. DM signatures could be found in the secondary- to-primary ratios, as the positron fraction, as well as in the fluxes of the leptonic and hadronic component of cosmic rays: while astrophysical sources show power-law spectra, DM spectra would show a steep cutoff at the DM particle mass. The present research statement proposes the creation of a research group at the Instituto de Física de São Carlos (IFSC-USP) that will be focused on the search for dark matter in cosmic rays. This application opens the possibility for IFSC-USP to be the first Institution in South America to join the AMS-02 Collaboration, that has designed and built a particle physics magnetic spectrometer operating in outer space since three years. The main activity of the group will be the analysis of the data collected by the AMS detector. Using leading-edge computer algorithms, the proposed team will provide original contributions concerning the particle identification and noise reduction. In parallel, the interpretation of AMS results will be carried out, aiming at performing DM studies in extensions of the Standard Model. A computer cluster will be set up in order to reach the described goals. (AU)

Scientific publications

(14)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BATTARBEE, M.; BECKER, U.; GUERRI, I.; LEBEDEV, A.; LI, T. X.; LU, Y. S.; MARIN, J.; MARTIN, T.; NOZZOLI, F.; PICOT-CLEMENTE, N.; et al. . Physical Review Letters, v. 117, n. 9, AUG 26 2016. (14/19149-7, 14/50747-8)

AGUILAR, M.; CAVASONZA, L. ALI; AMBROSI, G.; ARRUDA, L.; ATTIG, N.; AUPETIT, S.; AZZARELLO, P.; BACHLECHNER, A.; BARAO, F.; BARRAU, A.; et al. Observation of New Properties of Secondary Cosmic Rays Lithium, Beryllium, and Boron by the Alpha Magnetic Spectrometer on the International Space Station. Physical Review Letters, v. 120, n. 2, JAN 11 2018. (15/50378-5, 14/19149-7, 16/10222-9)

AGUILAR, M.; AISA, D.; ALPAT, B.; ALVINO, A.; AMBROSI, G.; ANDEEN, K.; ARRUDA, L.; ATTIG, N.; AZZARELLO, P.; BACHLECHNER, A.; et al. Precision Measurement of the Helium Flux in Primary Cosmic Rays of Rigidities 1.9 GV to 3 TV with the Alpha Magnetic Spectrometer on the International Space Station. Physical Review Letters, v. 115, n. 21, NOV 17 2015. (14/19149-7, 14/50747-8)

AGUILAR, M.; CAVASONZA, L. ALI; ALPAT, B.; AMBROSI, G.; ARRUDA, L.; ATTIG, N.; AUPETIT, S.; AZZARELLO, P.; BACHLECHNER, A.; BARAO, F.; et al. Precision Measurement of Cosmic-Ray Nitrogen and its Primary and Secondary Components with the Alpha Magnetic Spectrometer on the International Space Station. Physical Review Letters, v. 121, n. 5, JUL 31 2018. (15/50378-5, 14/19149-7, 16/10222-9)

AGUILAR, M.; AISA, D.; ALPAT, B.; ALVINO, A.; AMBROSI, G.; ANDEEN, K.; ARRUDA, L.; ATTIG, N.; AZZARELLO, P.; BACHLECHNER, A.; et al. Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station. Physical Review Letters, v. 114, n. 17, APR 30 2015. (14/19149-7, 14/50747-8)

AGUILAR, M.; CAVASONZA, L. ALI; AMBROSI, G.; ARRUDA, L.; ATTIG, N.; BACHLECHNER, A.; BARAO, F.; BARRAU, A.; BARRIN, L.; BARTOLONI, A.; et al. Properties of Cosmic Helium Isotopes Measured by the Alpha Magnetic Spectrometer. Physical Review Letters, v. 123, n. 18, NOV 1 2019. (14/19149-7)

AGUILAR, M.; ALPAT, B.; AMBROSI, G.; ARRUDA, L.; ATTIG, N.; AUPETIT, S.; AZZARELLO, P.; BACHLECHNER, A.; BARAO, F.; BARRAU, A.; et al. Antiproton Flux, Antiproton-to-Proton Flux Ratio, and Properties of Elementary Particle Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station. Physical Review Letters, v. 117, n. 9, p. 10-pg., 2016-08-26. (14/50747-8, 14/19149-7)

AGUILAR, M.; CAVASONZA, L. ALI; ALPAT, B.; AMBROSI, G.; ARRUDA, L.; ATTIG, N.; AUPETIT, S.; AZZARELLO, P.; BACHLECHNER, A.; BARAO, F.; et al. Observation of the Identical Rigidity Dependence of He, C, and O Cosmic Rays at High Rigidities by the Alpha Magnetic Spectrometer on the International Space Station. Physical Review Letters, v. 119, n. 25, DEC 18 2017. (15/50378-5, 14/19149-7, 16/10222-9)

GENOLINI, YOANN; SERPICO, PASQUALE D.; BOUDAUD, MATHIEU; CAROFF, SAMI; POULIN, VIVIAN; DEROME, LAURENT; LAVALLE, JULIEN; MAURIN, DAVID; POIREAU, VINCENT; ROSIER, SYLVIE; et al. Indications for a High-Rigidity Break in the Cosmic-Ray Diffusion Coefficient. Physical Review Letters, v. 119, n. 24, DEC 15 2017. (14/19149-7, 14/50747-8)

AGUILAR, M.; CAVASONZA, L. ALI; ALPAT, B.; AMBROSI, G.; ARRUDA, L.; ATTIG, N.; AZZARELLO, P.; BACHLECHNER, A.; BARAO, F.; BARRAU, A.; et al. Towards Understanding the Origin of Cosmic-Ray Electrons. Physical Review Letters, v. 122, n. 10, MAR 13 2019. (14/19149-7)

AGUILAR, M.; CAVASONZA, L. ALI; AMBROSI, G.; ARRUDA, L.; ATTIG, N.; AUPETIT, S.; AZZARELLO, P.; BACHLECHNER, A.; BARAO, F.; BARRAU, A.; et al. Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station. Physical Review Letters, v. 121, n. 5, JUL 31 2018. (15/50378-5, 14/19149-7)

AGUILAR, M.; CAVASONZA, L. ALI; ALPAT, B.; AMBROSI, G.; ARRUDA, L.; ATTIG, N.; AUPETIT, S.; AZZARELLO, P.; BACHLECHNER, A.; BARAO, F.; et al. Observation of Fine Time Structures in the Cosmic Proton and Helium Fluxes with the Alpha Magnetic Spectrometer on the International Space Station. Physical Review Letters, v. 121, n. 5, JUL 31 2018. (15/50378-5, 14/19149-7, 16/10222-9)

BOUDAUD, M.; BUENO, E. F.; CAROFF, S.; GENOLINI, Y.; POULIN, V.; POIREAU, V.; PUTZE, A.; ROSIER, S.; SALATI, P.; VECCHI, M.. The pinching method for Galactic cosmic ray positrons: Implications in the light of precision measurements. Astronomy & Astrophysics, v. 605, SEP 2017. (15/13533-2, 14/50747-8, 14/19149-7)

AGUILAR, M.; CAVASONZA, L. ALI; AMBROSI, G.; ARRUDA, L.; ATTIG, N.; AZZARELLO, P.; BACHLECHNER, A.; BARAO, F.; BARRAU, A.; BARRIN, L.; et al. Towards Understanding the Origin of Cosmic-Ray Positrons. Physical Review Letters, v. 122, n. 4, JAN 29 2019. (14/19149-7)