Tyler B. Smith

Astroparticle physics Ph.D. Candidate | University of California, Irvine
NSF, LANL, NOLP, & ARCS Fellow

About Me

I am a 5th year PhD candidate and NSF/LANL/NOLP/ARCS Fellow at UC Irvine. My research spans the intersection of astrophysics and particle physics. My work focuses on binary black hole formation and merger rates, beyond the Standard Model particle phenomenology, supernova dynamics from neutrino spectral analysis, and self-interacting dark matter effects on early galaxy evolution. I am deeply committed to building community via active roles in the Physics and Community Excellence Program (PACE), SACNAS, and the Physics Graduate Caucus (PGC) where I help foster mentorship, leadership, and inclusivity for students at all levels. In my free time I enjoy weightlifting and spending time with my two daughters, whether catching waves at the beach, watching anime, or cooking bomb vegan food.

Featured Articles

Three Physical Sciences graduate students receive 2024-2025 Los Alamos National Lab research fellowship

UCI Physical Sciences Communications

Student Spotlight

UCI Physics and Astronomy Blog

One NASA Intern Story Does Not Fit All

Claire Misfeldt

Research

My research spans binary black hole formation and merger rates, beyond the Standard Model (BSM) phenomenology, supernova neutrinos, and self-interacting dark matter (SIDM) effects on early galaxy evolution.

Binary Black Hole Formation

Binary Black Hole Formation Plot

In our recent work (arXiv:2412.13318), we study the isolated evolutionary channel and construct the BBH population using first-principle galaxy formation models and empirical relations. We demonstrate an inverse relationship between metallicity and the efficiency of forming BBHs that merge within a Hubble time. Massive black holes predominantly originate in metal-deficient environments, such as dwarf galaxies.

Beyond the Standard Model Phenomenology

BSM Phenomenology Model

I explored constraints on new vector bosons coupled to the Standard Model, focusing on the \( U(1)_{B-L} \) gauge symmetry (arXiv:2401.02483). This symmetry naturally incorporates right-handed neutrinos (RHNs) to restore gauge invariance and provide a mechanism for neutrino mass generation. I showed that anomaly-free models can impose stringent constraints from rare decays (\( B \), \( K \), and \( Z \) bosons), excluding parameter spaces where an MeV-scale RHN dark matter candidate explains both the \( (g-2)_\mu \) anomaly and the dark matter relic density.

Supernova Neutrino Spectral Analysis

Supernova Neutrino CNN Analysis

As a UCI-LANL-SoCalHub fellow, I am conducting a full-flavor spectral analysis of core-collapse supernova (CCSN) neutrinos detected at SuperK, DUNE, and JUNO. Using 1D simulations with various equations of state and convolutional neural networks, I explore the relation between neutrino spectra and the core's binding energy, progenitor mases, and neutrino driven shock revival.

Early Galaxy Formation with SIDM

Early Galaxy Simulation Snapshot

Using the GIZMO code, my collaborators and I simulate early galaxy formation and evolution, comparing Cold Dark Matter (CDM), Self-Interacting Dark Matter (SIDM), and Warm Dark Matter (WDM) from redshift \( z \sim 20 \) to \( z \sim 8 \). This work, motivated by James Webb Space Telescope (JWST) observations, examines how SIDM impacts early structure formation and helps distinguish between dark matter models.

Outreach

Outreach Workshop

I am committed to community building and outreach efforts, fostering inclusivity and mentorship in STEM. As a leader with the Physics and Astronomy Community Excellence (PACE) program, I have focused on horizontal mentoring for first-year graduate students, organizing monthly workshops to help them acclimate to departmental culture and succeed in their programs. Through PACE’s involvement in the National Osterbrock Leadership Program (NOLP), I organized and led a splinter session at AAS #245, Deepening Broader Impacts: Mentorship, DEI, and Career Advancement, and co-authored the NOLP whitepaper on Reimagining the Astronomy PhD.

Outreach Workshop

Previously, as the administrator of the Physics Graduate Caucus (PGC), I led a diverse team to host social events, graduate student town halls, and meetings with departmental leadership to drive actionable changes within the department. As the outreach chair for SACNAS at UCI, I focus on supporting transfer students, helping them navigate the transition to university and fostering interest in graduate school through tailored programs and mentorship opportunities.

Beyond Academia

I am a father to two wonderful kiddos. I spend most of my free time hanging out with them, usually hitting the pool or beach! I also enjoy weightlifting, reading manga or science fiction, and playing music.. Fun fact I used to play in crust punk bands before starting my degree!

Get Connected

To contact me, please email me at tylerbs@uci.edu. Please reach out if you want to learn more about my current research, mentorship/outreach efforts, or chat about things beyond science.