Scope of the workshop
The detection of gravitational waves has opened a new window onto compact objects and strong-field gravity. As the global gravitational-wave detector network moves toward the next generation of observations, improving detector sensitivity at high frequencies will be particularly important for exploring the physics of neutron stars and other phenomena associated with the kilohertz band.
KAGRA is considering a long-term upgrade strategy toward the post-O5 era, with particular emphasis on improving its sensitivity at frequencies above a few hundred Hz. Such an upgrade would strengthen KAGRA's contribution to the international gravitational-wave network and provide new opportunities for studying compact binary mergers and high-frequency gravitational-wave sources.
This workshop will bring together researchers in gravitational-wave instrumentation, data analysis, astrophysics, and nuclear theory to discuss the scientific opportunities and technical challenges associated with improving KAGRA's high-frequency sensitivity. Topics will include the current status and future upgrades of KAGRA, prospects for gravitational-wave astronomy with an upgraded detector, physics accessible through kilohertz gravitational waves, and theoretical and data-analysis challenges related to neutron-star mergers and their post-merger signals.
A major goal of the workshop is to facilitate discussion across different communities and to explore how the design of future KAGRA upgrades can be connected to compelling science targets. In particular, we aim to identify promising directions for the kHz sensitivity upgrade and to develop closer interactions between detector, data-analysis, and theory communities.
Participation and Program
The workshop will consist of invited talks, contributed presentations, and dedicated discussion sessions.
On the first day, invited talks will review the current status of KAGRA and planned detector upgrades aimed at improving its high-frequency sensitivity. We will also discuss the current landscape of gravitational-wave observations and the scientific opportunities that enhanced kHz sensitivity could provide for KAGRA and the global detector network. These talks will be followed by presentations on the physics accessible with gravitational waves in the kHz band and a dedicated discussion session on the future kHz sensitivity upgrade of KAGRA. A workshop dinner is planned after the scientific program.
The second day will broaden the discussion toward the physics and analysis of high-frequency gravitational-wave signals, including topics such as nuclear physics, neutron-star mergers, and theoretical and data-analysis aspects of post-merger gravitational waves. The detailed program will be announced at a later date.
We welcome participation from researchers working not only on gravitational-wave detectors and data analysis, but also on nuclear physics, astrophysics, relativity, and other areas related to high-frequency gravitational-wave science. In particular, we encourage participation from researchers interested in exploring possible connections between KAGRA's future detector development and new science opportunities.
Participants who wish to give a contributed presentation are invited to indicate this during registration and provide a tentative title and abstract. Depending on the number of submissions and the available time, the organizers will arrange the contributed presentations as part of the workshop program.
Important Dates
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Deadline for abstract submission: November 13
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Deadline for registration: December 4
Invited Speakers
- Kentaro Komori (National Astronomical Observatory of Japan)
- Yoichi Aso (Institute for Cosmic Ray Research)
- Shio Sakon (Institute for Cosmic Ray Research)
- Soichiro Morisaki (Institute for Cosmic Ray Research)
- Koutarou Kyutoku (Chiba University)
- Toru Kojo (KEK)
