[Triumf-seminars] TRIUMF Colloquium today at 14:00

[TRIUMF Seminars]

Date/Time: Thu 2023-11-02 at 14:00

Location:  Auditorium/Remote   

Speaker:   Makoto Fujiwara (TRIUMF)

Title:     Dropping antimatter: Observation of gravitational influence on antihydrogen motion with the ALPHA-g experiment at CERN

Abstract: Atomic hydrogen is one of the best studied systems in all of physics. Comparisons between hydrogen with its antimatter counterpart, antihydrogen, provide opportunities to probe some of the most foundational symmetries and principles in modern physics, such as CPT invariance and Einstein's Equivalence Principle. Nonetheless, unlike hydrogen, antihydrogen does not naturally exist, presenting significant experimental challenges. Over the past decades, the ALPHA collaboration at CERN has developed techniques to synthesize, confine, manipulate and interrogate antihydrogen atoms. While numerous spectroscopic measurements on antihydrogen have been conducted, the study of gravitational effects has remained elusive, primarily due to the extremely weak nature of gravity. After more than a decade of development, the ALPHA-g experiment has now achieved a significant milestone by directly observing Earth's gravitational influence on the motion of antihydrogen. This result represents an important step towards future precision gravity measurements on antimatter. In this colloquium, following a general overview of antihydrogen studies, I will present our first result with ALPHA-g, highlighting Canadian contributions to the project. I will also discuss our future prospects, including the ambitious HAICU project under development at TRIUMF.

---
Remote Connection:
https://ubc.zoom.us/j/62085935263?pwd=bG1KNm1FZVFNSEYxZzdIQXMySnJUUT09
---
Meeting ID: 620 8593 5263
Passcode: 686505
---

Please contact Makoto Fujiwara if you would like to meet with the speaker.

Stimulants available 15 minutes before the talk. Bring your own mug!

______________________________

General TRIUMF seminar information available at http://www.triumf.ca/home/upcoming-events/about-seminars-lectures