Astroparticle Physics (CSN2)

Coordinator: Walter M. Bonivento
INFN – Cagliari Unit
@ Physics Department
Room: 2C27
Phone: + 39 070 675 4977
E-mail: walter.bonivento@ca.infn.it

 

The activities related to astroparticles and fundamental physics are coordinated on a national basis by the Scientific Commission 2 of the National Institute of Nuclear Physics. The Cagliari Unit contributes to several projects both in the field of cosmic ray physics and in the field of gravitational wave physics.

DARKSIDE

The Darkside experiment has as its objective the research of WIMP Dark Matter (Weakly Interacting Massive Particle) through its interaction with the argon atoms in liquid phase. The experiment located at the National Laboratory of the Gran Sasso of INFN, consists of three phases: DarkSide-50 (DS50), a 50 Kg double-phase temporal projection chamber and two-year data acquisition, DarkSide-proto 1t , under construction and testing at CERN in Geneva, and DarkSide-20k, in an advanced design phase, from 20t, which will take data from 2021. Recently, DS50 has published the best limit in the world for the research of WIMP Dark matter with low masses.
A fundamental element of DS20k, on which a part of the group is actively engaged, is the cryogenic distillation column Aria, during assembly at the Carbosulcis mine in Nuraxi-Figus (CI), which will allow both to purify the argon for impurity DS20k and, for DarkSide-Proto, to reduce the content of the radioactive isotope of mass number 39 by a factor of about 10 per passage.
The Cagliari unit also conducts research in the following areas: theory and phenomenology of WIMP interaction, data analysis of DS50, development of an optical transmitter for analog signals in liquid argon and design of the DArT detector for measurement of the radioactivity of argon, which is thought to be installed at the Canfranc laboratory in Spain. It also participates in measurements on the ReD detector, a double-phase chamber of a few Kg, at the University of Naples, for calibration purposes and for the possible measurement of directional effects of the interaction of the WIMPs in the detector.
The Group’s Researchers have various coordination tasks within both DS20k (Project Scientist) and Aria (Relations with Local Authorities and Deputy-Technical Coordinators)

In the photo, the assembly of the Seruci-0 test column of the Cryogenic distillation plant Aria at CarboSulcis (CI).

The activities related to astroparticles and fundamental physics are coordinated on a national basis by the Scientific Commission 2 of the National Institute of Nuclear Physics. The Cagliari Unit contributes to several projects both in the field of cosmic ray physics and in the field of gravitational wave physics.

DARKSIDE

The Darkside experiment has as its objective the research of WIMP Dark Matter (Weakly Interacting Massive Particle) through its interaction with the argon atoms in liquid phase. The experiment located at the National Laboratory of the Gran Sasso of INFN, consists of three phases: DarkSide-50 (DS50), a 50 Kg double-phase temporal projection chamber and two-year data acquisition, DarkSide-proto 1t , under construction and testing at CERN in Geneva, and DarkSide-20k, in an advanced design phase, from 20t, which will take data from 2021. Recently, DS50 has published the best limit in the world for the research of WIMP Dark matter with low masses.
A fundamental element of DS20k, on which a part of the group is actively engaged, is the cryogenic distillation column Aria, during assembly at the Carbosulcis mine in Nuraxi-Figus (CI), which will allow both to purify the argon for impurity DS20k and, for DarkSide-Proto, to reduce the content of the radioactive isotope of mass number 39 by a factor of about 10 per passage.
The Cagliari unit also conducts research in the following areas: theory and phenomenology of WIMP interaction, data analysis of DS50, development of an optical transmitter for analog signals in liquid argon and design of the DArT detector for measurement of the radioactivity of argon, which is thought to be installed at the Canfranc laboratory in Spain. It also participates in measurements on the ReD detector, a double-phase chamber of a few Kg, at the University of Naples, for calibration purposes and for the possible measurement of directional effects of the interaction of the WIMPs in the detector.
The Group’s Researchers have various coordination tasks within both DS20k (Project Scientist) and Aria (Relations with Local Authorities and Deputy-Technical Coordinators)