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MAGIC+LST1 Meeting
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Minutes from the October 29th, 2026 APFP + FUND joint WG meeting.
- Toya presented a preliminary study on Lorentz Invariance Violation (LIV) using LST-1 data, focusing on the quadratic subluminal case for photons.
Summary of Revisiting dSesph and Perseus analysis for model-dependent constraints:
- Tomohiro presented a proposal to recast MAGIC data on the Perseus cluster to constrain the Goldstino model of decaying dark matter, focusing on the SUSY breaking scale and reheating temperature.
- One or two papers can be made from this project, with the new limits on pseudo-Goldstino dark matter and cosmological interpretations.
- A short author-list paper would be appreciated since a graduate student wants to be involved and this route is faster, but full collaboration is also fine.
- Simple re-run of Glike on flute files with a different model and a validation with DL3 data.
Questions and comments:
- Giacomo: We can use the full dataset of MAGIC, so let's do that.
- Project can be used to cross-check glike with gammapy in the recast of algorithms
- Giacomo: I'll send the GitHub repository link for the recasting algorithm to Tomohiro.
Testing LIV through Delayed Air Shower Development with LST-1:
- Toya presented a preliminary study on Lorentz Invariance Violation (LIV) using LST-1 data using a different method than ToF or EBL analysis. From the Rubtsov et al. 2017 paper focusing on the quadratic subluminal case for photons in air showers.
- Applied to 7h or high Zd LST1 Crab data
Questions and comments:
- Shotaro: Raised a concern that the current analysis only applies the LIV effect modification to effective area estimation, while it may also affect energy reconstruction and images due to deeper atmospheric propagation at large zenith angles
- Petar: It would be interesting to apply this effect in Corsika simulations
- Tomohiro: Recommended focusing on higher energies (e.g., around 100 TeV) to set stricter constraints and suggested considering electrons as a more abundant source for EM shower studies
P.D.
The Zoom AI transcript was more poetic.
Example N1: Giacomo - Los tecleos del piano y los gemidos de los Violines del techo Coloreado a La Vez Por El reflejo Azul de La Tarde.
Example N2: Petar - До проблемы с рильи Допротов спецум, изнуться контрак. Корсика, Ор, Иф?. Google translation - Antes del asunto con Rilly, Doprots poseía una habilidad especial: la de zafarse de un contrato. ¿Córcega, o tal vez...?
Conclusion, do not trust the zoom transcription.
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