Neutrinoless double beta decay search in Xe - next-generation experiment workshop

Name: Neutrinoless double beta decay search in Xe - next-generation experiment workshop
Start: 2025-11-12T07:55:00-05:00
End: 2025-11-14T14:00:00-05:00
Location: Montreal

12 Nov 2025, 07:55 → 14 Nov 2025, 14:00 America/Toronto

Thomson House Ballroom (Montreal)

Thomson House Ballroom

Montreal

Thomson House 3650 McTavish St Montreal, QC H3A 1X1

Roxanne Guenette (University of Manchester), Thomas Brunner (McGill and TRIUMF)

Description

The search for neutrinoless double beta decay, ideally in more than one isotope, has been identified as high priority by the international subatomic physics community. Over the past decades, significant advancements have been made in the development of xenon TPCs.

Proposed next-generation experiments intend to deploy tonne(s) of the double beta decaying isotope Xe-136 and are expected to reach sensitivities in the mid-10^27 to 10^28 years range. The complexity of these experiments and the cost of xenon likely will limit the number of next-generation experiments and their timescales.

We are organizing a workshop to discuss possibilities and opportunities for a coherent collaborative effort to search for neutrinoless double beta decay in Xe-136. We want to keep this workshop as inclusive and as broad as possible and are inviting possible collaborators with the aim of creating a new consortium or collaboration under a new name with the broad goal of developing a roadmap for a competitive search for neutrinoless double beta decay using xenon as a target medium.

The workshop will be held November 12-14, 2025 in Montreal.

Organizing committee:
Roxanne Guenette
Mike Heffner
Ben Jones
Justo Martin-Albo
Thomas Brunner

With the kind sponsorship from:

Registration

Registration Information Next Gen Xe workshop

Participants

Andrea Pocar
ANKIT GAUR
Ben Jones
Brian Lenardo
Brian Mong
Daniel Akerib
Dave Hawkins
David Moore
David Sinclair
Erica Caden
Ethan Coulthard
Fran Spidle
Francesc Monrabal Capilla
Frédéric Girard
Gabriel Orebi Gann
Guillaume Giroux
Hugh Lippincott
Irina Nitu
Isaac Arnquist
Jodi Cooley
Jose F. Toledo
Justo Martín-Albo
Kevin Gracequist
Krishan Mistry
Krishna Kumar
Liang Yang
Lucas Darroch
mike heffner
Nigel Smith
Pablo Herrero Gomez
Ray Bunker
Regan Ross
Roxanne Guenette
Samuele Sangiorgio
Simon Lavoie
Simon Viel
Thomas Brunner

Contact

xe-0vbb@physics.mcgill.ca

Wednesday, 12 November
- 09:00 → 10:15
  Introduction, goals and context
  - 09:00
    
    Welcome/Logistics 10m
  - 09:10
    
    Welcome to McGill 5m
  - 09:15
    
    Workshop Goals 30m
  - 09:45
    
    Review of the xenon technologies 30m
- 10:15 → 10:45
  
  Coffee Break 30m
  
  At the venue
- 10:45 → 12:35
  Current Status and panel on Xenon ressources: Current status and panel on Xe ressources
  - 10:45
    
    Best current limits using 136Xe 30m
  - 11:15
    
    The Chinese Xenon programme 30m
  - 11:45
    
    Panel discussion in Xe procurement and sharing ressources 50m
- 12:35 → 14:05
  
  Lunch 1h 30m
- 14:05 → 15:35
  Theory discussions of 0nbb
  - 14:05
    
    Theory review of the impact of Majorana neutrinos 30m
  - 14:35
    
    Theory review of the nuclear matrix element calculation for 136Xe 30m
  - 15:05
    
    Accessing underground labs 30m
- 15:35 → 16:05
  
  Break 30m
- 16:05 → 18:05
  Technical challenges and new ideas
  - 16:05
    
    Technical Coordination of large-scale 0nbb experiments 30m
  - 16:35
    
    Radioassay needs for future low-bkg experiments 30m
  - 17:05
    
    Low radioactivity materials 30m
  - 17:35
    
    Blue Sky Session 25m
- 19:00 → 21:30
  
  Collaboration Dinner 2h 30m
Thursday, 13 November
- 09:00 → 10:20
  Lessons learned and plans for 0nbb
  - 09:00
    
    Lessons learned 1 20m
  - 09:20
    
    Lessons learned 2 20m
  - 09:40
    
    Lessons learned 3 20m
  - 10:00
    
    Report on the joint oversight group and feedback from the 0nbb Summits 20m
- 10:20 → 10:50
  
  Coffee break 30m
  
  at the venue
- 10:50 → 12:50
  Technical Challenges 2
  - 10:50
    
    Photon detection systems 30m
  - 11:20
    
    Xenon storage and purification 30m
  - 11:50
    
    Ba tagging 30m
  - 12:20
    
    Impact of microphysics and simulations 30m
- 12:50 → 13:50
  
  Lunch 1h
  
  at venue
- 13:50 → 15:50
  Technical Challenges 2
  - 13:50
    
    Radon Control 30m
    
    How to work together on xenon procurement for maximal benefit
  - 14:20
    
    Shielding and outer detectors 30m
  - 14:50
    
    High Voltage 30m
  - 15:20
    
    Electronics & DAQ 30m
- 15:50 → 16:20
  
  Break 30m
- 16:20 → 19:30
  Panel discussion on best strategy for Xenon experiments
  - 16:20
    
    Panel on best strategy for Xe experiments 1h 15m
  - 17:35
    
    Blue Sky session #2 25m
    
    5 minutes for each wacky idea presentation
  - 18:00
    
    Reception at Thomson House with Band 1h 30m
- 18:00 → 19:30
  
  Reception 1h 30m Thomson House Ballroom
  
  Thomson House Ballroom
  
  Montreal
  
  Thomson House 3650 McTavish St Montreal, QC H3A 1X1
Friday, 14 November
- 09:00 → 10:30
  Xe detector technologies
  - 09:00
    
    Gas TPC 30m
  - 09:30
    
    Liquid TPC 30m
  - 10:00
    
    Dual Phase TPC 30m
- 10:30 → 11:00
  
  Coffee break 30m
  
  at venue
- 11:00 → 13:00
  Session 10: Where to go from here?
  - 11:00
    
    Other technologies 30m
    
    KamLAND2-ZEN, THEIA, LAR+Xe, and others
  - 11:30
    
    Quo Vadis 1h
    
    Where do we want to go? Can we develop a consortium? How would we do this?
  - 12:30
    
    Workshop summary and wrap-up 30m
- 13:00 → 14:00
  
  Lunch 1h
  
  Lunch and end of workshop

Neutrinoless double beta decay search in Xe - next-generation experiment workshop

Thomson House Ballroom

Montreal

Thomson House Ballroom

Montreal

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