Indico has been upgraded to v2.3. Please see our blog for a list of improvements.

Half Day IoP Meeting: Neutrinoless Double Beta Decay

Europe/London
Chandler B01 (University College London)

Chandler B01

University College London

Chandler House, 2 Wakefield Street, London, WC1N 1PF
Description

Neutrinoless double beta decay is a crucial process to search for the violation of lepton number and a highly sensitive probe of the yet unknown absolute mass of light neutrinos. Its observation would have far reaching consequences for BSM physics.

This meeting is intended to give an overview of (1) the experimental status and future prospects of searches for neutrinoless double beta decay; (2) the status and progress in the determination of nuclear matrix elements; (3) and the theoretical aspects and developments of relevant models of lepton number violation.

The meeting will bring together experts in experimental and theoretical neutrino, nuclear and BSM physics, with talks targeted at the general high energy physics audience. Plenty of time for discussions will be provided.

The meeting starts at 13:00. Lunch will be served from 12:00.

Organizers:
Frank Deppisch (UCL)
Silvia Pascoli (IPPP)
Ruben Saakyan (UCL)
Stefan Söldner-Rembold (Manchester U.)
David Waters (UCL)

The meeting is supported by the IOP and partially funded by the IPPP.

Participants
  • Alex Hyndman
  • Anastasia Basharina-Freshville
  • Andrew Akeroyd
  • Benjamin Kay
  • Benjamin Richards
  • Chan Fai Wong
  • Cristovao Vilela
  • Daniel Hall
  • David Bailin
  • David Miller
  • David Waters
  • Elliot Leader
  • Emmanuel Chauveau
  • Federico Colecchia
  • Francesca Di Lodovico
  • Frank Deppisch
  • Grzegorz Zuzel
  • Gwenaelle Lefeuvre
  • Helen O'Keeffe
  • Jacobo Lopez-Pavon
  • James Mott
  • Jeanne Wilson
  • Jeff Hartnell
  • Jim Grozier
  • Jonathan Davies
  • Julia Sedgbeer
  • Justin Evans
  • Laura Kormos
  • Linda Cremonesi
  • Mark Scott
  • Martin Hirsch
  • Matthew Mottram
  • Matthew Reeves
  • Ofer Lahav
  • Oleg Grachov
  • Paul Kyberd
  • Robert Flack
  • Ruben Saakyan
  • Ryan Terri
  • Samantha Short
  • Silvia Pascoli
  • Stefan Soldner-Rembold
  • Stefano Torre
  • Stella Bradbury
  • Steven Biller
  • Tomas Gonzalo
  • Vadim Rodin
  • William Poynter
  • Yorck Ramachers
Frank Deppisch
    • 12:00 13:00
      Lunch 1h Chandler B04

      Chandler B04

      University College London

    • 13:00 13:05
      Welcome 5m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF
    • 13:05 13:45
      Neutrinos and DBD 40m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF
      Speaker: Jacobo Lopez-Pavon
      Slides
    • 13:45 14:25
      Beyond the Standard Model and DBD 40m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF
      Speaker: Martin Hirsch
      Slides
    • 14:25 15:05
      DBD Experiments 40m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF
      Speaker: Yorck Ramachers
      Slides
    • 15:05 15:30
      Neutrino Mass Bounds from Astrophysics 25m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF
      Speaker: Ofer Lahav
      Slides
    • 15:30 16:00
      Coffee Break 30m Chandler B04

      Chandler B04

      University College London

    • 16:00 16:40
      Nuclear Matrix Element Calculations 40m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF
      Speaker: Vadim Rodin
      Slides
    • 16:40 17:20
      Experimental Input for Nuclear Matrix Elements 40m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF
      If neutrinoless double beta decay were to be observed, its half life would provide a determination of the effective neutrino mass as long as the nuclear matrix element can be determined. These matrix elements are not directly sampled by any other physical process and their values, which are by necessity taken from theoretical calculations, are rather uncertain. However, various elements of these calculations can be benchmarked against measureable nuclear properties. Using the 76Ge➞76Se system, we have determined the occupancy of protons and neutrons in the ‘active orbitals’ of the respective 0+ ground states, and the difference between them, thus characterising the ground-state wave functions. The Fermi surface was found to be more diffuse than previous calculations suggested. Pairing properties have also been studied to test the validity of the BCS approximation used in QRPA, one of the major theoretical approaches to calculating the matrix elements. We are continuing this programme by studies of the 130Te➞130Xe and 100Mo➞100Ru systems, where each presents a different experimental challenge. An overview of the programme and its impact will be discussed.
      Speaker: Benjamin Kay
      Slides
    • 17:20 17:45
      The GERDA Experiment 25m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF
      Speaker: Grzegorz Zuzel
      Slides
    • 17:45 18:10
      The SNO+ Experiment 25m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF
      Speaker: Gwen Lefeuvre
      Slides
    • 18:10 18:35
      The NEMO and SuperNEMO Experiments 25m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF
      Speaker: Stefano Torre
      Slides
    • 18:35 18:40
      Adjourn 5m Chandler B01

      Chandler B01

      University College London

      Chandler House, 2 Wakefield Street, London, WC1N 1PF