INFN - Sezione di Roma
DOE/INFN Summer Exchange Program for 2017

1 position: CALDER

Title: High-sensitivity cryogenic light detectors

Description: The goal of CALDER is to develop high-sensitivity cryogenic light detectors for the identification of rare events, such as double beta decay and dark matter interactions with ordinary matter. We are developing a new technology based on superconducting detectors called KIDs (Kinetic Inductance Detectors). We are currently designing and testing the prototypes in the Sapienza/INFN laboratory in Rome, in collaboration with the Italian Institute for Photonics and Nanotechnologies. The student will be involved in the lab activities: cryostat operations, electronics setup, detector characterisation and data analysis.

Tutors: Marco Vignati (marco.vignati@roma1.infn.it)

Recommended period: June-July and/or September-October 2017

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1 position: CUPID

Title: Search for neutrinoless double beta decay of 82Se with CUPID

Description: Neutrinoless double beta decay is a hypothetical lepton number violating process in which two neutrons in an atomic nucleus simultaneously decay to two protons, two electrons, and no electron-antineutrinos. Its discovery would establish the Majorana nature of the neutrino. CUPID is a cryogenic detector that exploits the dual readout heat/light in an array of 26 ZnSe bolometers, cooled down to 10 mK in a dilution refrigerator cryostat installed underground in the Laboratori Nazionali del Gran Sasso. CUPID has started taking data In January 2017. The student will be involved in the optimization of the analysis and the development of tools and algorithms. Computing Knowledge: Ability to work in a Unix environment and program in C/C++, knowledge of ROOT/ROOFIT package.

Tutors: Fabio Bellini (fabio.bellini@roma1.infn.it)

Recommended period: June-July and/or September-October 2017

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2 positions: CUORE

Title: Search for neutrinoless double beta decay of 130Te with CUORE

Description: Neutrinoless double beta decay is a hypothetical lepton number violating process in which two neutrons in an atomic nucleus simultaneously decay to two protons, two electrons, and no electron-antineutrinos. Its discovery would establish the Majorana nature of the neutrino. CUORE is a cryogenic detector made by an array of 988 TeO2 bolometers arranged in 19 towers, cooled down to 10 mK in a dilution refrigerator cryostat installed underground in the Laboratori Nazionali del Gran Sasso. CUORE has started taking data In January 2017. The students will be involved in the optimization of the analysis and the development of tools and algorithms. Computing Knowledge: Ability to work in a Unix environment and program in C/C++, knowledge of ROOT/ROOFIT package.

Tutors: Claudia Tomei (claudia.tomei@roma1.infn.it)

Recommended period: June-July and/or September-October 2017

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1 position: SABRE

Title: Geant4 simulations of external background for the SABRE experiment

Description: SABRE is a project for a new Dark Matter experiment to search for the annual modulation signal with ultra-high-purity NaI(Tl) crystals. One key feature of the project is the use of an active liquid scintillator veto around the NaI(Tl) crystals. The veto will serve a double purpose. The first aim is to reject the low energy background coming from the ~3keV X-ray cascade that follows the 40^K EC decays inside the scintillating crystals, by tagging the 1460 keV gamma emitted in coincidence. The second aim is to provide a veto for the external background coming from muons, gammas and neutrons (environmental and muon-induced). The student will be involved in Geant4 simulations ad in the analysis of the simulated data to study the contribution of the external background to the SABRE design and the sensitivity reach of the experiment.

Computing Knowledge: Ability to work in a Unix environment and program in C/C++, basic knowledge of Geant4 is not required although beneficial.

Tutor: Claudia Tomei (claudia.tomei@roma1.infn.it)

Recommended period: June-July or September-October 2017

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1 position: MEG experiment

Title: Development of the calibration and monitoring system of the MEG-II drift chamber

Description: The MEG-II collaboration is carrying on a leading experiment for the search of New Physics in the charged Lepton Flavor Violating decay mu -> e gamma. The upgraded MEG-II detector will start physics data taking in 2018 for a period of three calendars years at the Paul Scherrer Institute near Zurich (Switzerland). The MEG-II drift chamber is currently being wired at INFN-Lecce and assembled at INFN-Pisa. The chamber will be sealed in August and successively tested in Pisa and shipped to PSI. The student will work with the members of the Rome group in the development of calibration and monitoring tools and algorithms for this detector, in the framework of the MEGII software (C++ and ROOT based).

Tutors: Francesco Renga (francesco.renga@roma1.infn.it), Cecilia Voena (cecilia.voena@roma1.infn.it)

Recommended period: June-July OR September-October


Scientific Coordinator: Shahram Rahatlou
(tel +390649914357 - email: shahram.rahatlou@roma1.infn.it)

Local Secretariat:
Mauro Mancini
(tel. +390649914318 - email: mauro.mancini@roma1.infn.it)