Colloquium
Upcoming Colloquium
Illuminating the Dark Sector
Dr. Daniel Diaz, UC San Diego
March 3, 2025
11:00am in HSCI-105
The Standard Model (SM) of particle physics successfully describes many observed phenomena but leaves fundamental questions unanswered, including the nature of dark matter and the matterantimatter asymmetry. These gaps motivate searches for physics beyond the Standard Model (BSM). This talk will highlight efforts to probe dark sectors via searches for long-lived particles (LLPs) at the Large Hadron Collider (LHC). LLPs, predicted by many BSM theories, present unique experimental challenges due to their extended lifetimes and unconventional signatures. I will discuss novel search strategies and detector techniques developed to enhance sensitivity to LLPs, including the use of machine learning (ML) algorithms for both online and offline data analysis. The transition to the High Luminosity LHC (HL-LHC) era introduces additional opportunities and challenges, requiring advanced ML-driven triggers to effectively filter data in real time. I will present key results from past searches, outline upgrades to the CMS Level-1 trigger, and describe plans to expand LLP searches to lower masses and longer lifetimes.
About the Colloquium
The Colloquium is a unique opportunity for students to learn about new developments in physics and what physicists do after they graduate. Hosted by the Physics and Astronomy Department at California State University, Long Beach, the weekly meetings invite guests from universities, research laboratories, and industry to present and discuss current topics in physics. All students are encouraged to attend for a well-rounded experience and training in physics.
Colloquium Coordinator
For information and suggestions about the colloquium please contact the colloquium coordinator:
Dr. Zoltan Papp
Zoltan.Papp@csulb.edu
Schedule
| Date | Title | Speaker and Affiliation |
|---|---|---|
| March 3, 2025 | Illuminating the Dark Sector | Dr. Daniel Diaz, UC San Diego |
| March 10, 2025 | (topic: condensed matter theory) | Silke Paschen, TU Wien, Austria |
| March 24, 2025 | (topic: condensed matter experiment) | Karoly Holczer, UCLA |
| April 7, 2025 | TBD | TBD |
| April 14, 2025 | (topic: condensed matter experiment) | Cristopher Barty, UC Irvine |
| April 21, 2025 | (topic: condensed matter theory) | Kalman Varga, Vanderbilt |
| April 28, 2025 | (topic: condensed matter theory) | Thomas Baker, University of Victoria, Canada |
| May 5, 2025 | Physics Student Research Presentations | Physics Students, CSU Long Beach |
| May 7, 2025 | Physics Student Research Presentations | Physics Students, CSU Long Beach |
Previous Colloquia
| Date | Title | Speaker and Affiliation |
|---|---|---|
| February 24, 2025 | Nontrivial band-topology in dimerized quantum magnets | Dr. Judit Romhanyi, UC Irvine |
| February 17, 2025 | Advances in Hadron Physics from Color-Confining Light-Front Holography: A Novel Nonperturbative Approach to Color Confinement, Hadron Spectroscopy, and Dynamics | Dr. Stanley Brodsky, Stanford University |
| February 10, 2025 | An Overview of AI and Machine Learning Research at the Nevada National Security Sites | Dr. Arnulfo Gonzalez, National Nuclear Security Site, Las Vegas |
| January 27, 2025 | Femtosecond Laser Eye Surgery: The Journey from Discovery to Commercial Products | Dr. Tibor Juhasz, UC Irvine |
| February 3, 2025 | Who鈥檚 Afraid of Quantum Interference? | Dr. Matthew Leifer, Chapman University |
The Colloquium Archive has the Colloquia from previous semesters.
Sponsors
We acknowledge with gratitude donations and support from the following present sponsors:
- H.E. and H.B. Miller and Family Endowment
- Benjamin Carter
- American Physical Society
- Anonymous
We also acknowledge with gratitude our past donors: The Forty-Niner Shops, Inc., The Northrop Grumman Foundation, Sandra Dana, Anonymous.
If you wish to support the Colloquium, please contact the colloquium coordinator or the department chair. Thank you!
