`The development of instrumentation and methodology for the next generation of long baseline neutrino oscillation
Lead Research Organisation:
University of Warwick
Department Name: Physics
Abstract
The development of experimental techniques that will enable long baseline neutrino oscillation experiments to achieve the best possible measurement sensitivity for parameters that currently either poorly known or completely unknown (such as CP-violation in the neutrino sector). The research programme will initially focus on the development of a light injection calibration system for the Hyper-K project. This will involve simulating the light propagation, optimising the design followed by the construction and evaluation of a prototype detector to be installed in Super-K during 2018. The long-term goals of the programme are less well defined, but will include an analysis topic leading to a physics measurement. This is likely to be based on the T2K data set and will be in an area in which the Warwick group is currently active and can provide expert support. A period of Long Term Attachment at the T2K project during a running period will be essential to develop the level of understanding of the detector systems necessary to embark on a data analysis programme.
People |
ORCID iD |
| G Barker (Primary Supervisor) | |
| William Vinning (Student) |
Publications
Abe K
(2020)
Search for Electron Antineutrino Appearance in a Long-Baseline Muon Antineutrino Beam.
in Physical review letters
Abe K
(2020)
Measurement of the muon neutrino charged-current single p + production on hydrocarbon using the T2K off-axis near detector ND280
in Physical Review D
Abe K
(2020)
First measurement of the charged current ? ¯ ยต double differential cross section on a water target without pions in the final state
in Physical Review D
Abe K
(2021)
T2K measurements of muon neutrino and antineutrino disappearance using 3.13 × 10 21 protons on target
in Physical Review D
Abe K
(2021)
Improved constraints on neutrino mixing from the T2K experiment with 3.13 × 10 21 protons on target
in Physical Review D
Abe K
(2020)
First combined measurement of the muon neutrino and antineutrino charged-current cross section without pions in the final state at T2K
in Physical Review D
Abe K
(2021)
Supernova Model Discrimination with Hyper-Kamiokande
in The Astrophysical Journal
T2K Collaboration
(2020)
Publisher Correction: Constraint on the matter-antimatter symmetry-violating phase in neutrino oscillations.
in Nature
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| ST/R505195/1 | 01/10/2017 | 30/09/2021 | |||
| 1917439 | Studentship | ST/R505195/1 | 02/10/2017 | 30/06/2021 | William Vinning |
| Description | Precision of measurement of neutral current elastic neutrino-proton interaction channel at the T2K near detector has been improved by ~30% with machine-learning techniques. Novel calibration optics have been developed and successfully installed within the Super-Kamiokande detector, they have now been integrated into the automatic calibration routine. |
| Exploitation Route | The machine-learning model can be tuned further to reject the dominant background in this channel. Experience gained during the development process of the model should be used to formulate an alternative approach to the training that maximises statistics and minimises interaction model dependencies. Possibly deep-learning based classification models such as CNNs or GNNs should be explored. The designs of the calibration optics can be optimised further and developed faster with the experience gained from the development and installation process and the test-stand tools that were developed. The precision on the calibrations performed with the new optics should be studied. |
| Sectors | Other |
| Description | Hyper-Kamiokande Collaboration |
| Organisation | Hyper-Kamiokande |
| Country | Global |
| Sector | Learned Society |
| PI Contribution | Development of calibration optics, deployment and subsequent data analysis. |
| Collaborator Contribution | Access to facilities/data, expertise. |
| Impact | https://labs.inspirehep.net/literature/1727971 |
| Start Year | 2017 |
| Description | Hyper-Kamiokande Collaboration |
| Organisation | Super-Kamiokande |
| Country | Japan |
| Sector | Charity/Non Profit |
| PI Contribution | Development of calibration optics, deployment and subsequent data analysis. |
| Collaborator Contribution | Access to facilities/data, expertise. |
| Impact | https://labs.inspirehep.net/literature/1727971 |
| Start Year | 2017 |
| Description | T2K Collaboration |
| Organisation | T2K Collaboration |
| Country | Global |
| Sector | Academic/University |
| PI Contribution | Ongoing measurement of Neutral-Current Elastic (NCE) interaction cross-section in near-detector. Evaluation of energy scale/resolution systematics of the near-detector's electromagnetic calorimeter. |
| Collaborator Contribution | Expertise/intellectual support. |
| Impact | PhysRevD.101.012007 PhysRevD.100.112009 |
| Start Year | 2017 |
| Title | Calibration optics for water Cherenkov detectors |
| Description | Monitoring of water transparency (e.g. the absorption and scattering levels) is important for water Cherenkov detectors, this can be measured in-situ by injecting light from a bespoke calibration source. An optical system was designed, using simulation and physical testing, to collimate light injected from a connected optical fibre for this purpose. |
| Type Of Technology | New/Improved Technique/Technology |
| Year Produced | 2018 |
| Impact | The design was finalised in spring 2018 and five were installed permanently inside of the Super-Kamiokande neutrino detector in Japan during the summer. Since then, calibration data has been collected and analysed, indicating a successful installation, and further data analysis is being performed by other collaborators. Our calibration devices achieve a tighter light cone than any other optical calibration source in the tank, therefore it is expected that scattering and absorption parameters will be measured to a higher precision. Soon, one of these calibration sources will be integrated into the regular automated calibration routine of the detector. Future deployments in other future water Cherenkov detectors have also been planned. |
| URL | http://inspirehep.net/record/1727971 |
| Description | Poster presentation and quick-fire talk at NuPhys2018 |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Study participants or study members |
| Results and Impact | Present poster and quick-fire talk about installation of calibration optics in Super-Kamiokande, questions and discussion sparked at poster session. |
| Year(s) Of Engagement Activity | 2018 |
| URL | http://inspirehep.net/record/1727971 |