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SUMMARY:Review on Recent Progress and Status of the ALPACA Experiment
DTSTART;VALUE=DATE-TIME:20260715T025000Z
DTEND;VALUE=DATE-TIME:20260715T032000Z
DTSTAMP;VALUE=DATE-TIME:20260722T050749Z
UID:indico-contribution-2497-8962@indico.icrr.u-tokyo.ac.jp
DESCRIPTION:Speakers: Futatsu Sugimoto (ICRR)\nAndes Large area PArticle d
 etector for Cosmic ray physics and Astronomy (ALPACA) experiment is a plan
 ned extensive air shower experiment aiming for very high energy gamma ray 
 sources in the southern sky. The full array will combine surface detector 
 array with underground muon detector for gamma / hadron discrimination. Cu
 rrently the prototype\, ALPAQUITA surface array has been constructed and i
 s operating since April 2023. In this brief talk\, I will introduce the sc
 ientific motivation\, detector concept and current status of underground m
 uon detector construction with emphasis on cosmic-ray observation results 
 obtained with prototype array.\n\nhttps://indico.icrr.u-tokyo.ac.jp/event/
 1254/contributions/8962/
LOCATION:Kashiwa Large Seminar Room 601 (Kashiwa)
URL:https://indico.icrr.u-tokyo.ac.jp/event/1254/contributions/8962/
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BEGIN:VEVENT
SUMMARY:Recent Results from the Tibet ASγ Experiment: Gamma-Ray Observati
 ons and a Related Study on Cosmic-Ray Composition
DTSTART;VALUE=DATE-TIME:20260715T022000Z
DTEND;VALUE=DATE-TIME:20260715T025000Z
DTSTAMP;VALUE=DATE-TIME:20260722T050749Z
UID:indico-contribution-2497-8961@indico.icrr.u-tokyo.ac.jp
DESCRIPTION:Speakers: Ginga Imaizumi (ginga@icrr.u-tokyo.ac.jp)\nThis pres
 entation introduces three recent peer-reviewed papers related to the Tibet
  ASγ experiment published in 2025–2026. The first presents a study of t
 he ultra-high-energy γ-ray halo surrounding the Geminga pulsar\, providin
 g new constraints on the magnetohydrodynamic turbulence around the source.
  The second demonstrates the experimental verification of a convolutional 
 neural network (CNN)-based gamma/hadron separation method for TeV gamma-ra
 y observations. The third reports a Monte Carlo simulation study of elemen
 tal cosmic-ray energy spectra using the Tibet Air-Shower and Muon Detector
  Arrays with the Bayesian unfolding method\, demonstrating the feasibility
  of elemental spectrum reconstruction around the knee region.\n\nhttps://i
 ndico.icrr.u-tokyo.ac.jp/event/1254/contributions/8961/
LOCATION:Kashiwa Large Seminar Room 601 (Kashiwa)
URL:https://indico.icrr.u-tokyo.ac.jp/event/1254/contributions/8961/
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