8th CYGNUS Workshop on Directional Recoil Detection

Contribution List

22. Introduction

Ciaran O'Hare (Sydney)

11/12/2023, 13:00

18. Overview of dark matter

Prof. Nicole Bell (The University of Melbourne)

11/12/2023, 13:15

Overview of dark matter

19. Direct detection experiments

Theresa Fruth (University of Sydney)

11/12/2023, 14:00

Direct detection experiments

17. Overview of directional recoil detection

Sven Vahsen (University of Hawaii (US))

11/12/2023, 14:45

Overview of directional recoil detection

14. NEWAGE / CYGNUS-KM

Prof. Kentaro Miuchi (Kobe University)

11/12/2023, 16:00

Overview, recent results, R&D activities, and futre plans of NEWAGE and CYGNUS-KM will be presented.

20. Neutrinos

Louis Strigari (Texas A&M)

12/12/2023, 09:00

Neutrinos

6. The COHERENT Experiment

Charles Prior (Duke University)

12/12/2023, 09:45

The COHERENT collaboration was the first to observe coherent elastic neutrino-nucleus scattering (CEvNS) at the Spallation Neutron Source at Oak Ridge National Laboratory (TN, USA) in 2017. The SNS is a pulsed pion decay-at-rest neutrino source with a well-known spectrum of low-energy neutrinos.

Today, the collaboration operates several detectors measuring CEVNS and neutrino-charged-current...

24. NR Tracking in Argon/Noble gases

Prof. David Caratelli (UC Santa Barbara)

12/12/2023, 11:00

25. Ion transport in liquid argon

Xiao Luo (Univ. of California Santa Barbara (US))

12/12/2023, 11:45

21. The Migdal effect

Jayden Newstead (University of Melbourne)

12/12/2023, 14:00

The Migdal effect

15. MIGDAL

Dinesh Loomba

12/12/2023, 14:30

Update on the MIGDAL experiment

43. The Stawell Underground Physics Laboratory or The Hunt for Dark Matter in a Gold Mine

Zuzana Slavkovska (Australian National University)

12/12/2023, 16:00

26. CYGNUS-Oz

Ferdos Dastgiri, Gregory John Lane (Australian National University (AU)), Lachlan McKie (Australian National University), Dr Lindsey Bignell (Department of Nuclear Physics and Accelerator Applications, The Australian National University)

12/12/2023, 16:15

27. CYGNO-LIME

Stefano Piacentini

13/12/2023, 09:00

9. Towards CYGNO04

Giovanni Mazzitelli

13/12/2023, 09:30

We will present the progress of the CYGNO04 project, the technical choices made based on budget constraints, and the selected site for installing the detector. The current detector layout will be illustrated along with descriptions of the chosen cathode, field cage, gas vessel, charge amplification device, and light sensors. Additionally, we will provide an update on the development of...

28. Optical negative ion drift operation at atmospheric pressure

Prof. Elisabetta Baracchini (Gran Sasso Science Institute)

13/12/2023, 10:00

36. Detector R&D with Negative Ion Mixtures

Thomas Nathan Thorpe (Los Alamos National Laboratory)

13/12/2023, 11:00

Negative ion (NI) gas mixtures offer many benefits for directional detection, including low (near-thermal) diffusion and the possibility of adding spin-dependent targets for dark matter (DM) searches. However, the unforeseen benefit of multiple NI species allowing for fiducialization of the drift coordinate in time projection chambers (TPCs) might allow for uses beyond directional detection. ...

30. CYGNUS Hawaii: Recent Detector R&D and machine learning results

Majd Ghrear

13/12/2023, 11:30

40. CYGNUS Hawaii: Recent simulations and measurements of MPGD avalanche gain

Michael Litke (University of Hawaii)

13/12/2023, 12:10

38. A progress report on development of Multi-layer THGEM readout structures

Dr Marco Cortesi (Facility for Rare Isotope Beams)

14/12/2023, 09:00

4. Progress Towards Directional Detection of Dark Matter using Spectroscopy of Quantum Defects in Diamond

Dr Daniel Ang (University of Maryland)

14/12/2023, 09:45

Nitrogen vacancy (NV) centers in diamond have been identified as a promising future platform for directional detection of weakly interacting massive particle (WIMP) dark matter. A WIMP particle induces nuclear recoil in the diamond, resulting in a direction-dependent sub-micron damage track. This damage track induces crystal stress variations which shift the energy levels of NV centers,...

8. Development of directional dark matter detector with anisotropic ZnWO4 scintillator

Hiroyuki Sekiya

14/12/2023, 11:00

The ZnWO4 crystal has been noted for its directional dependence in scintillation light output based on crystal orientation. Consequently, we are actively developing a direction-sensitive dark matter detector that utilizes this anisotropic response of ZnWO4 crystals.

In this presentation, we will share our findings from the measurement of the quenching factor and the anisotropic response of...

13. Status of the NEWSdm experiment

Takashi Asada (Universita Federico II e INFN Sezione di Napoli (IT))

14/12/2023, 11:30

The recent progress of the NEWSdm experiment will be reported.

34. Environmental neutron measurement at the Gran Sasso laboratory in the NEWSdm experiment

Takuya Shiraishi (Kanagawa University)

14/12/2023, 12:00

The NEWSdm experiment is designed to search for dark matter with directional sensitivity at the Gran Sasso laboratory. Nano Imaging Tracker (NIT) used in the NEWSdm experiment is a super-high resolution nuclear emulsion detector. This extremely high spatial resolution makes NIT the unique solid tracking detector capable of determining the direction of nuclei with a track length of 100 nm,...

37. Characterization of low-energy Argon recoils with the ReD experiment

Paul Zakhary (AstroCeNT, CAMK, PAN)

14/12/2023, 14:00

The Recoil Directionality project (ReD) within the Global Argon Dark Matter Collaboration aims to characterize the response of an argon dual-phase Time Projection Chamber (TPC) to neutron-induced nuclear recoils (NRs) and to measure the charge yield for low-energy recoils. This measurement is crucial to improve the sensitivity of future low-mass studies. The charge yield is a critical...

10. Directional dark matter searches using levitated optomechanics

Robert James (The University of Melbourne)

14/12/2023, 14:30

Levitated optomechanics provides a novel platform to test fundamental physics. One such application provides a unique directional dark matter direct detection technique to explore alternative parameter space to that being investigated by large scale experiments deployed underground. We present progress towards an experiment built at University College London, capable of resolving collisions in...

3. Anomaly aware machine learning for dark matter direct detection at DARWIN

Andre Joshua Scaffidi

14/12/2023, 15:00

This talk presents a novel approach to dark matter direct detection using anomaly-aware machine learning techniques in the DARWIN next-generation dark matter direct detection experiment. I will introduce a semi-unsupervised deep learning pipeline that falls under the umbrella of generalized Simulation-Based Inference (SBI), an approach that allows one to effectively learn likelihoods straight...

11. Development of a versatile TPC for neutron-induced reactions studies at the SARAF TOF facility.

Dr Maryna Borysova (Weizmann Institute of Science & KINR, NAS of Ukraine)

14/12/2023, 16:00

We present the research plans on the development an Optical Time Projection Chamber (O-TPC) - a multi-purpose gaseous radiation-detector system, as part of the SARAF infrastructure. SARAF Phase II accelerator will provide unique capabilities for neutron-induced reactions, offering intense primary beams for high neutron flux, and tunable neutron energy.

35. Gas Gains Over 10⁴ in Low Pressure SF₆ with a Novel Multi-Mesh ThGEM for Directional Dark Matter Searches

Alasdair McLean (University of Sheffield)

14/12/2023, 16:30

The Negative Ion Drift (NID) gas SF₆ has favourable properties for track reconstruction in directional Dark Matter (DM) searches utilising low pressure gaseous Time Projection Chambers (TPCs). However, the electronegative nature of the gas means that it is more difficult to achieve significant gas gains with regular Thick Gaseous Electron Multipliers (ThGEMs). Typically, the maximum attainable...

5. Molecular sieve vacuum swing adsorption purification and radon reduction system for gaseous dark matter and rare-event detectors

Robert Renz Marcelo Gregorio

14/12/2023, 16:50

SF6 has become of interest as a negative ion drift gas for use in directional dark matter searches. However, as for other gas targets in such searches, it is important that contamination gases can be removed. This includes radon gas contamination that can decay, producing unwanted background events able to mimic genuine signals, but also outgassing and leaking introduce contaminants such as...

39. Charge Amplification in Sub-atmospheric CF4, SF6, Helium Mixtures

Alasdair McLean (University of Sheffield)

14/12/2023, 17:10

Low pressure gaseous Time Projection Chambers (TPCs) are a viable technology for directional Dark Matter (DM) searches and have the potential for exploring the parameter space below the neutrino fog. Gases like CF4 and SF6 are advantageous because they contain Flourine which is predicted to have heightened elastic scattering rates with a possible Weakly Interacting Massive Particle (WIMP) DM...

16. Directional DM detection and Neutron Spectrometry in the keV range with MIMAC

Eduardo Daniel SANTOS

15/12/2023, 09:00

The talk will include Ionization Quenching Factor measurements with COMIMAC, electron-nuclear recoil discrimination and many other items related with.

42. Solar neutrinos and electron recoils

Samuele Torelli

15/12/2023, 10:00

12. Extracting Dark-Matter Mass from Directional Observables

Prof. Jong-Chul Park (Chungnam National University (KR))

15/12/2023, 11:00

We propose a novel method to determine the mass scale of ambient dark matter that can be generally applied to the (at least effectively) two-dimensional direct detection experiments allowing for directional observables. Due to the motions of the solar system and the Earth relative to the galactic center and the Sun, the dark-matter flux carries a directional preference. We first formulate that...

41. R&D for a Gaseous Argon-Based Near Detector for DUNE

Tanaz Mohayai (Indiana University)

15/12/2023, 11:30

DUNE aims to measure CP violation in the leptonic sector, observe supernova burst neutrinos, and detect rare processes such as proton decay. To achieve these goals, DUNE will use a highly capable suite of near detectors. The DUNE Near Detector complex for Phase II includes ND-GAr, a magnetized high-pressure gaseous-argon TPC (HPgTPC) surrounded by a calorimeter. Due to the low detection...

33. Discussion on the future plans of the directional detection community

Sven Vahsen (University of Hawaii (US))

15/12/2023, 12:15

32. CYGNUS-UK

Alasdair McLean (University of Sheffield), Neil Spooner (University of Sheffield), Robert Renz Marcelo Gregorio

2. Mechanical quantum sensing and 3d momentum detection

Daniel Carney (Berkeley National Lab), David Moore (Yale University)

Optical and microwave readout of mechanical objects can be used to continuously detect the full 3d momentum vector of the object's center-of-mass. This can be done with target masses ranging from single ions to kilogram-scale objects. Increasingly, the limiting noise in these systems is determined by the quantum mechanical noise in the readout itself (the "standard quantum limit")....

29. Negative ion drift R&D

Thomas Nathan Thorpe (Los Alamos National Laboratory)

7. NEWAGE

Prof. Kentaro MIuchi

Latest results, R&D status and futures of NEWAGE will be presented.

23. NEWAGE/CYGNUS-KM

Kentaro MIuchi

31. Nuclear emulsions

Takuya Shiraishi (Kanagawa University)

1. Registration