Date/Time: Wed Jun 25 2025 at 15:00<br/><br/>Location: Auditorium/Remote<br/><br/>Speaker: Marcela Carena (Perimeter Institute)<br/><br/>Title: The Future of Particle Physics<br/><br/>Abstract: https://ubc.zoom.us/j/67977531712?pwd=1U0EroqxhtoulCd3padaLc9X3Cbc1W.1

Meeting ID: 679 7753 1712

Passcode: 112353 Part of the TRISEP graduate summer school in particle physics. ______________________________ Detailed information available can  be found at <a href='https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures'>https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures</a>  Date/Time: Mon Jun 23 2025 at 10:00 Location: Remote/Theory Room Speaker: Prof. Mauro Raggi (Sapienza University of Rome) Title: Search for a 17 MeV resonance in e+e- annihilation with the PADME Experiment Abstract: The PADME experiment at the Frascati National Laboratory of INFN has performed a search for the hypothetical X17 particle, by observing the product of the collisions of the positron beam from the DAFNE LINAC on a diamond fixed target.

The beam energy has been varied in the range 265?300 MeV, corresponding to values of vs between 16.4 and 17.5 MeV, completely covering the CoM region identified by the ATOMKI collaboration as significant for observing the postulated X17 particle.

The result of the analysis shows an about 2-sigma excess corresponding to the mass indicated by the ATOMKI experiment. A new data-taking campaign with an improved detector is currently ongoing, aiming to push forward the sensitivity of the search.

---

Remote Connection:

https://teams.microsoft.com/l/meetup-join/19%3ameeting_YWM1ZDU4MWQtOWQzNi00YmQzLTk1NzItMzFiMGNiNzRhNDU1%40thread.v2/0?context=%7b%22Tid%22%3a%22c2053510-9cb3-4679-a2d3-8f442e03b587%22%2c%22Oid%22%3a%22d9fac05c-8c3e-4fd4-816f-986cea6e28f9%22%7d<br/><br/>Dark Matter Forum Series<br/><br/>______________________________<br/><br/>Detailed information available can  be found at <a href='https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures'>https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures</a> <br/><br/>