Alexandre S. Göttel M.Sc.

Alexandre S. Göttel M.Sc.
  • PhD student, joined November 2018
  • Thesis Title: Low-energy neutrino physics with JUNO

Contact:
  • Phone: +49 2461 61 4735
  • E-mail: alexandre.goettel_AT_rwth-aachen.de

Education

  • M.Sc. in Astroparticle Physics and Cosmology
    RWTH Aachen University
    Master Thesis: Modelling the solar modulation of galactic cosmic-rays

  • B.Sc. in Physics
    RWTH Aachen University
    Bachelor Thesis: Measurement of the cosmic-ray helium spectrum with the transition radiation detector of the Alpha Magnetic Spectrometer (AMS-02) on the international space station

JUNO

  • Researching JUNO's sensitivity to solar neutrinos
  • Background estimation
  • Statistics and spectral fit techniques and software development
  • Data (bit)rate estimation

OSIRIS

In order to be able to measure solar neutrinos with JUNO, one needs a very radio-pure Liquid Scintillator (LS) and a firm grasp on the different internal (and external) sources of background. The OSIRIS pre-detector for JUNO hopes to set an upper-limit on the Uranium and Thorium contamination of the LS, and can also be used to constrain backgrounds which are relevant to JUNO's solar analysis.
  • Geant4-based c++ software development
  • Data analysis from Geant4 simulations with ROOT and Python, to investigate different calibration systems and scenarios, and to help decide on mechanical details and achieve physics goals.
  • LabView software development and mechanical/hardware work with the calibration systems related to the "Automated Calibration Unit" which was taken over from the Daya Bay Experiment in China. The ACU is being re-purposed for OSIRIS, with the help of our chinese colleagues in Shanghai.

BOREXINO

  • Pile-up rate estimation with Monte-Carlo techniques
  • Development of a Bayesian analysis using Markov-Chain-Monte-Carlo methods in order to improve the current methods to constrain Bi210, the main background in the CNO analysis.

Selected publications

Conference Talks

  • 2021 European Physical Society Conference on High Energy Physics - July 26-30, 2021 - virtual
    Parallel talk: JUNO potential in non-oscillation physics
  • DPG-Frühjahrstagung - March 15-19, 2021 - Dortmund, Germany
    Parallel talk: Calibrating OSIRIS: A 20-ton radioactivity monitor for JUNO
  • XIX International Workshop on Neutrino Telescopes - Feb 18-26, 2021 - Padova, Italy
    Parallel talk: Data analysis of a low-polonium-field for the discovery of CNO neutrinos in Borexino
  • DPG-Frühjahrstagung - March 25-29, 2019 - Aachen, Germany
    Parallel talk: Calibrating the OSIRIS pre-detector - A radioactivity monitor for JUNO

Further publications

Posters

Schools

  • The 1st INFN International School on Underground Physics (SoUP 2021) - June 28 - July 2, 2021 - Virtual