Name: CETUP* 2023
Start: 2023-06-19T02:00:00-06:00
End: 2023-07-14T17:00:00-06:00
Location: Lead/Deadwood Middle School

Monday, June 19, 2023

8:45 AM Welcome
Welcome
8:45 AM - 9:00 AM
9:00 AM Jet-SIFTing for New Physics - Joel Walker (Sam Houston State University)
Jet-SIFTing for New Physics
- Joel Walker (Sam Houston State University)
9:00 AM - 9:45 AM
We describe a new scale-invariant jet clustering algorithm that does not impose a fixed cone size on a collider event. The proposed construction unifies large-radius jet finding, substructure axis-finding, and recursive filtering of soft wide-angle radiation into a single procedure. The sequential clustering measure history facilitates high-performance substructure tagging with a boosted decision tree. Excellent object discrimination and kinematic reconstruction is maintained for highly-boosted partonic systems, while asymptotically recovering favorable behaviors of both the standard KT anti-KT algorithms. We explore applications of this new technology to searches for new physics in a collider setting. In particular, we consider a Hidden Valley model which generates high-multiplicity showering from strong dynamics within the dark sector, followed by decays back into Standard Model states. The reconstruction of dark sector masses in such a setting is obscured by a thick combinatoric background. By cutting an ordered slice through possible recombinations, the SIFT algorithm may be able to help lift backgrounds of this variety.
9:45 AM Break
Break
9:45 AM - 10:00 AM
10:00 AM Asteroid-mass Dark Matter - Tao Xu (The University of Oklahoma)
Asteroid-mass Dark Matter
- Tao Xu (The University of Oklahoma)
10:00 AM - 10:45 AM
Massive astrophysical compact halo objects have been proposed as possible constituents of dark matter today. The mass range of massive compact object DM candidates is quite extensive. Within the broad mass spectrum, the asteroid-mass window has recently received much attention, especially in relation to primordial black holes (PBHs). In this talk, I will first discuss the searches for asteroid-mass PBHs and what we can learn about the dark sector through their Hawking radiation. In the second part, I will introduce a novel dynamic approach to search for massive compact object DM. I will show the gravitational interaction between PBHs and sub-solar mass DM with binary systems presents a potential strategy for probing unexplored parameter spaces.
10:45 AM Discussions, Collaboration and Lunch
Discussions, Collaboration and Lunch
10:45 AM - 3:00 PM
3:00 PM Dark matter in main(ish) sequence stars - Aaron Vincent (Queen's University)
Dark matter in main(ish) sequence stars
- Aaron Vincent (Queen's University)
3:00 PM - 3:45 PM
Direct detection experiments around the world are searching for the small dark matter-nucleon interactions that would give us the first clue about its particle physics properties. If such interactions exist, they would also cause dark matter to become trapped inside stars. This can have consequences ranging from unobservable to catastrophic: small effects on neutrino fluxes detected at earth, asteroseismologial changes, the formation of black holes in stellar cores, and even premature thermonuclear detonation. I will provide an overview, and focus in on recent developments in modelling main sequence and post-main sequence evolution of stars affected by dark matter.
3:45 PM Discussions and Collaboration
Discussions and Collaboration
3:45 PM - 5:00 PM
Tuesday, June 20, 2023

9:45 AM SURF Underground Tour: Pick up at Hotel
SURF Underground Tour: Pick up at Hotel
9:45 AM - 10:00 AM
10:00 AM The Sanford Underground Research Facility - Jaret Heise (Sanford Underground Research Facility)
The Sanford Underground Research Facility
- Jaret Heise (Sanford Underground Research Facility)
10:00 AM - 10:45 AM
Room: E&O Conference Room The Sanford Underground Research Facility (SURF) has been operating for more than 15 years as an international facility dedicated to advancing compelling multidisciplinary underground scientific research in rare-process physics, as well as offering research opportunities in other disciplines. SURF laboratory facilities include a Surface Campus as well as campuses at the 4850-foot level (1500 m, 4300 m.w.e.) that host a range of significant physics experiments, including the LUX-ZEPLIN (LZ) dark matter experiment and the MAJORANA DEMONSTRATOR neutrinoless double-beta decay experiment. The CASPAR nuclear astrophysics accelerator completed the first phase of operation and is planning for the second phase beginning in 2024. SURF is also home to the Long-Baseline Neutrino Facility (LBNF) that will host the international Deep Underground Neutrino Experiment (DUNE). SURF offers world-class service, including an ultra-low background environment, low-background assay capabilities, and electroformed copper is produced at the facility. SURF is preparing to increase underground laboratory space. Plans are advancing for construction of new large caverns (nominally 100m L x 20m W x 24m H) on the 4850L (1500 m, 4200 mwe) on the timeframe of next-generation experiments (~2030). SURF plans to leverage existing advisory and community committees as well as engage the underground science community to inform plans for future laboratory space.
10:45 AM SURF Training, Waivers, Lunch, PPE, Shuttle
SURF Training, Waivers, Lunch, PPE, Shuttle
10:45 AM - 12:00 PM
Room: E&O Conference Room

12:00 PM SURF Underground Tour
SURF Underground Tour
12:00 PM - 4:45 PM
Room: 4850L

4:45 PM Shuttle, PPE
Shuttle, PPE
4:45 PM - 5:00 PM

5:00 PM SURF Underground Tour: Return to Hotel
SURF Underground Tour: Return to Hotel
5:00 PM - 5:10 PM
Wednesday, June 21, 2023
9:00 AM How Binary-Pulsar Orbital Period Measurements Constrain Baryon Dark Decays - Mohammadreza Zakeri (University of Kentucky)
How Binary-Pulsar Orbital Period Measurements Constrain Baryon Dark Decays
- Mohammadreza Zakeri (University of Kentucky)
9:00 AM - 9:45 AM
There are numerous motives (e.g., the baryon asymmetry problem) for considering baryon number violation (BNV) in extensions to the Standard Model. Given our current stringent constraints on BNV from certain experiments (e.g., SuperK), it is natural to examine the consequences of BNV in extreme conditions that are not realized terrestrially. In this talk, I show how the particle physics of BNV within a neutron star can be constrained by baryon-loss limits inferred from anomalous binary-pulsar period lengthening. I then map these limits onto specific models with baryon decays to dark particles for cases in which the produced dark particles do not survive to influence the response of the star to BNV effects. I show how limits on in-vacuum baryon dark decays can be extracted employing the techniques of relativistic mean-field theory, which are appropriate for studying in-medium effects in the dense nuclear medium found at the core of a neutron star. I conclude by noting the implications of our results for models of dark-sector-enabled baryogenesis.
9:45 AM Break
Break
9:45 AM - 10:00 AM
10:00 AM Dark Matter Signals and Constraints from keV to GeV - Kev Abazajian (University of California, Irvine)
Dark Matter Signals and Constraints from keV to GeV
- Kev Abazajian (University of California, Irvine)
10:00 AM - 10:45 AM
The possibility of dark matter residing in the neutrino sector remains of high interest, being probed by X-ray astronomy as well as laboratory searches. I will review candidate structure-formation and X-ray signals and constraints on keV-scale sterile neutrino dark matter. Much interest also remains at a factor of a million higher energy, with the Galactic Center Excess (GCE) of gamma-ray emission that may be consistent with dark matter annihilation at the GeV-scale. I will show: (1) the limitations of recent analyses that find a dark matter preference for the GCE, and (2) employing the latest models of diffuse emission and stellar-bulge associated populations makes them strongly preferred over a dark matter source.
10:45 AM Discussions, Collaboration and Lunch
Discussions, Collaboration and Lunch
10:45 AM - 3:00 PM
3:00 PM SPICE: A Search for Light (MeV - GeV) Dark Matter Using Polar Crystal Calorimeters - Roger Romani (UC Berkeley)
SPICE: A Search for Light (MeV - GeV) Dark Matter Using Polar Crystal Calorimeters
- Roger Romani (UC Berkeley)
3:00 PM - 4:00 PM
The search for dark matter has recently broadened to focus on a much wider class of candidates, including particle-like dark matter lighter than the traditional WIMP. The SPICE/HeRALD (or TESSERACT) collaboration has been formed to search for light (MeV-GeV) dark matter interactions in a variety of targets read out by TES-based calorimeters. In this talk, we describe the efforts of the SPICE project to search for light dark matter using crystalline targets including the polar crystals GaAs and Sapphire. We will detail specific thrusts of our ongoing R&D efforts: reducing low-energy backgrounds, improving energy resolution, and conducting pathfinder sub-GeV dark matter searches.
4:00 PM Discussions and Collaboration
Discussions and Collaboration
4:00 PM - 5:00 PM
Thursday, June 22, 2023
9:00 AM Light Dark Matter Accumulating in Terrestrial Planets: Nuclear Scattering - Jason Kumar (University of Hawaii)
Light Dark Matter Accumulating in Terrestrial Planets: Nuclear Scattering
- Jason Kumar (University of Hawaii)
9:00 AM - 9:45 AM
The direct capture and accumulation of Galactic dark matter in astrophysical bodies can occur as a result of its scattering with nuclei. In this work we investigate the detailed capture and evaporation of dark matter in terrestrial planets, taking Earth as an example. We focus on the strongly interacting case in which Earth may be opaque to dark matter, referred to as the ``optically thick" limit. We investigate light dark matter in particular, addressing important dynamical processes such as the ``ping-pong effect" during dark matter capture and the heating of Earth by dark matter annihilation. We do this using Monte-Carlo simulations as well as detailed analytical computations, and obtain improved bounds on dark matter direct detection for both spin dependent and spin-independent scattering, and also allowing for the interacting species to make up a sub-component of the dark matter density.
9:45 AM Break
Break
9:45 AM - 10:00 AM
10:00 AM An Analytic Approach to Light Dark Matter Attenuation - Christopher Cappiello
An Analytic Approach to Light Dark Matter Attenuation
- Christopher Cappiello
10:00 AM - 10:45 AM
Although searches for GeV-scale WIMPs are sensitive to very small cross sections, constraints on sub-GeV dark matter are significantly weaker, and largely constrain moderately- or strongly-interacting dark matter. But if dark matter interacts too strongly with nuclei, it could be slowed to undetectable speeds in Earth’s crust or atmosphere before reaching a detector. For sub-GeV dark matter, approximations used to model the attenuation of heavier dark matter fail, necessitating the use of computationally expensive simulations. I present a new, analytic approximation for modeling attenuation of light dark matter in the Earth. I show that our approach agrees well with Monte Carlo results, and can be much faster at large cross sections. I show how this method can be used to reanalyze recently reported constraints on sub-dominant dark matter—that is, dark matter particles that make up only a fraction of the total dark matter density.
10:45 AM Discussions and Collaboration
Discussions and Collaboration
10:45 AM - 12:00 PM

12:00 PM • Luncheon at the Sanford Lab Homestake Visitor Center, 12-1pm with board members from the South Dakota Science and Technology Authority, SURF Foundation, and SURF staff members
• Luncheon at the Sanford Lab Homestake Visitor Center, 12-1pm with board members from the South Dakota Science and Technology Authority, SURF Foundation, and SURF staff members
12:00 PM - 1:00 PM

1:00 PM Discussions and Collaboration
Discussions and Collaboration
1:00 PM - 5:00 PM
Friday, June 23, 2023
9:00 AM Stasis, Stasis, Stasis - Keith Dienes (University of Arizona/NSF)
Stasis, Stasis, Stasis
- Keith Dienes (University of Arizona/NSF)
9:00 AM - 9:45 AM
9:45 AM Break
Break
9:45 AM - 10:00 AM
10:00 AM Cosmic Stasis from Primordial-Black-Hole Evaporation and Its Phenomenological Implications - Brooks Thomas (Lafayette College)
Cosmic Stasis from Primordial-Black-Hole Evaporation and Its Phenomenological Implications
- Brooks Thomas (Lafayette College)
10:00 AM - 10:45 AM
Cosmic stasis is a phenomenon in which the abundances of multiple cosmological energy components — components such as matter, radiation, or vacuum energy — remain effectively constant despite the expansion of the universe. One mechanism which can give rise to an extended period of cosmic stasis is the evaporation of a population of primordial black holes (PBHs). In this talk, I review how PBH evaporation can lead to a stasis epoch and examine the observational consequences of such a modification to the cosmic expansion history. These include implications for inflationary observables, for the stochastic gravitational-wave background, and for the production of dark matter and dark radiation.
10:45 AM Discussion, Collaboration and Lunch
Discussion, Collaboration and Lunch
10:45 AM - 3:00 PM
3:00 PM DAMSA Experiment @ Fermilab PIP-II and Beyond - Jaehoon Yu (University of Texas at Arlington)
DAMSA Experiment @ Fermilab PIP-II and Beyond
- Jaehoon Yu (University of Texas at Arlington)
3:00 PM - 3:30 PM
Room: Classroom
New Understanding of Coherence in Bragg-Primakoff Axion Detection - Adrian Thompson (Texas A&M University)
New Understanding of Coherence in Bragg-Primakoff Axion Detection
- Adrian Thompson (Texas A&M University)
3:00 PM - 3:45 PM
Axions and axion-like pseudoscalar particles with dimension-5 couplings to photons exhibit coherent Primakoff scattering with ordered crystals at keV energy scales, making for a natural detection technique in searches for solar axions. We find that there are large suppressive corrections, potentially greater than a factor of $\mathcal{O}(10^3)$, to the coherent enhancement when taking into account absorption of the final state photon. This effect has already been accounted for in light-shining-through-wall experiments through the language of Darwin classical diffraction, but is missing from the literature in the context of solar axion searches that use a matrix element approach. We extend the treatment of the event rate with a heuristic description of absorption effects to bridge the gap between these two languages. Furthermore, we explore the Borrmann effect of anomalous absorption in lifting some of the event rate suppression by increasing the coherence length of the conversion. We study this phenomenon in Ge, NaI, and CsI crystal experiments and its impact on the the projected sensitivities of SuperCDMS, LEGEND, and SABRE to the solar axion parameter space. Lastly, we comment on the reach of multi-tonne scale crystal detectors and strategies to maximize the discovery potential of experimental efforts in this vein.
3:45 PM Discussions and Collaboration
Discussions and Collaboration
3:45 PM - 5:00 PM
Saturday, June 24, 2023
Sunday, June 25, 2023

Monday, July 10, 2023
9:00 AM Distinctive nuclear signatures of low-energy atmospheric neutrinos - Anna Suliga (UC Berkeley)
Distinctive nuclear signatures of low-energy atmospheric neutrinos
- Anna Suliga (UC Berkeley)
9:00 AM - 9:45 AM
We examine the possibility of detecting atmospheric neutrinos using the nuclear reactions in large-scale neutrino detectors. The proposed methods allow to measure the low-energy atmospheric rate to a level of approximately 10-30\% depending on the efficiency of the background discrimination techniques. In addition, a better understanding of the low-energy atmospheric neutrino background is essential to improve the detection perspective of the diffuse supernova neutrino background and the direct detection of dark matter.
9:45 AM Break
Break
9:45 AM - 10:00 AM
10:00 AM TBD - Danny Marfatia (University of Hawaii)
TBD
- Danny Marfatia (University of Hawaii)
10:00 AM - 10:45 AM
10:45 AM Discussions, Collaboration and Lunch
Discussions, Collaboration and Lunch
10:45 AM - 3:00 PM
3:00 PM Low-Energy Atmospheric Neutrino Oscillations - Kevin Kelly (Texas A&M University)
Low-Energy Atmospheric Neutrino Oscillations
- Kevin Kelly (Texas A&M University)
3:00 PM - 3:45 PM
Neutrino oscillation physics is a rich phenomenon, especially when any of the following is true: the neutrinos have low energy, the travel distance is large, and interactions with matter are significant along the path of propagation. All three of these criteria are met in low-energy atmospheric neutrino oscillations. I will demonstrate how this class of oscillations is exciting for several applications, and discuss which next-generations are best suited to exploit such measurements.
3:45 PM Break
Break
3:45 PM - 4:00 PM
4:00 PM TBD - Shirley Li (UC Irvine)
TBD
- Shirley Li (UC Irvine)
4:00 PM - 4:45 PM
4:45 PM Break
Break
4:45 PM - 5:00 PM
Tuesday, July 11, 2023

9:45 AM SURF Underground Tour: Pick up at Hotel
SURF Underground Tour: Pick up at Hotel
9:45 AM - 10:00 AM
10:00 AM The Sanford Underground Research Facility - Markus Horn (SURF)
The Sanford Underground Research Facility
- Markus Horn (SURF)
10:00 AM - 10:45 AM
Room: E&O Conference Room
10:45 AM SURF Training, Waivers, Lunch, PPE, Shuttle
SURF Training, Waivers, Lunch, PPE, Shuttle
10:45 AM - 12:00 PM
Room: E&O Conference Room

12:00 PM SURF Underground Tour
SURF Underground Tour
12:00 PM - 4:45 PM
Room: 4850L

4:45 PM Shuttle, PPE
Shuttle, PPE
4:45 PM - 5:00 PM

5:00 PM SURF Underground Tour: Return to Hotel
SURF Underground Tour: Return to Hotel
5:00 PM - 5:10 PM
Wednesday, July 12, 2023
9:00 AM TBD - Vishvas Pandey (Fermilab)
TBD
- Vishvas Pandey (Fermilab)
9:00 AM - 9:45 AM
9:45 AM Break
Break
9:45 AM - 10:00 AM
10:00 AM New Limits on W_R from Meson Decays - Gustavo Alves (University of Sao Paulo)
New Limits on W_R from Meson Decays
- Gustavo Alves (University of Sao Paulo)
10:00 AM - 10:45 AM
10:45 AM Discussions, Collaboration and Lunch
Discussions, Collaboration and Lunch
10:45 AM - 3:00 PM
3:00 PM TBD - Abhish Dev (Fermilab)
TBD
- Abhish Dev (Fermilab)
3:00 PM - 3:45 PM
3:45 PM Break
Break
3:45 PM - 4:00 PM
4:00 PM Anomalous Tau Neutrino Appearance in Short-Baseline Neutrino Experiments - Bhupal Dev (Washington University in St. Louis)
Anomalous Tau Neutrino Appearance in Short-Baseline Neutrino Experiments
- Bhupal Dev (Washington University in St. Louis)
4:00 PM - 4:45 PM
4:45 PM Break
Break
4:45 PM - 5:00 PM
Thursday, July 13, 2023
9:00 AM Searching for New Physics With Astrophysical Neutrinos - Carlos Argüelles-Delgado (Harvard University)
Searching for New Physics With Astrophysical Neutrinos
- Carlos Argüelles-Delgado (Harvard University)
9:00 AM - 9:45 AM
In this contribution I will talk about recent developments on searching for new physics with high-energy astrophysical neutrino sources.
9:45 AM Break
Break
9:45 AM - 10:00 AM

10:00 AM Discussion, Collaboration and Lunch
Discussion, Collaboration and Lunch
10:00 AM - 3:00 PM
3:00 PM Measuring the weak mixing angle at SBND - Antonio Ferreira (University of Sao Paulo)
Measuring the weak mixing angle at SBND
- Antonio Ferreira (University of Sao Paulo)
3:00 PM - 3:45 PM
3:45 PM Break
Break
3:45 PM - 4:00 PM
4:00 PM Neutrinos at a Forward Physics Facility: Production, Interactions and Astroparticle Physics Connections - Mary Hall Reno (University of Iowa)
Neutrinos at a Forward Physics Facility: Production, Interactions and Astroparticle Physics Connections
- Mary Hall Reno (University of Iowa)
4:00 PM - 4:45 PM
Neutrino experiments at a proposed Forward Physics Facility (FPF) would collect neutrino and antineutrino interaction data from one million muon neutrinos, 100,000 electron neutrinos and 10,000 tau neutrinos in the High-Luminosity era of the Large Hadron Collider (LHC). Already during Run 3, the experiments FASERv and SND@LHC are installed and collecting data. In the forward region where neutrino rapidities are 6.9 and higher, fluxes of neutrinos extend to few TeV energies. An overview of neutrino forward production at the LHC will be presented. Opportunities for tests of the standard model and searches for BSM physics with these neutrinos will be reviewed. We describe connections between forward neutrino production at the LHC and the atmospheric neutrino flux.
4:45 PM Break
Break
4:45 PM - 5:00 PM
Friday, July 14, 2023
9:00 AM Energy-dependent neutrino mixing parameters at oscillation experiments - Pedro Machado (Fermilab)
Energy-dependent neutrino mixing parameters at oscillation experiments
- Pedro Machado (Fermilab)
9:00 AM - 9:45 AM
Neutrino mixing parameters are subject to quantum corrections and hence are scale dependent. This means that the mixing parameters associated with the production and detection of neutrinos need not coincide since these processes are characterized by different energy scales. We show that, in the presence of relatively light new physics, the scale dependence of the mixing parameters can lead to observable consequences in long-baseline neutrino oscillation experiments, such as T2K and NOvA, and in neutrino telescopes like IceCube. We discuss the experimental signatures of this scenario in detail.
9:45 AM Break
Break
9:45 AM - 10:00 AM
10:00 AM Electromagnetic Properties of Neutrinos: Past, Present and Future - Sudip Jana
Electromagnetic Properties of Neutrinos: Past, Present and Future
- Sudip Jana
10:00 AM - 10:45 AM
After a brief introduction to neutrino electromagnetic properties, I will focus on the correlation between neutrino magnetic moment and neutrino mass mechanism. Then I will discuss that the models that induce large neutrino magnetic moments while maintaining their small masses naturally also predict observable shifts in the charged lepton anomalous magnetic moment by showing that the measurement of muon g−2 by the Fermilab experiment can be an in-direct and novel test of the neutrino magnetic-moment hypothesis, which can be as sensitive as other ongoing-neutrino/dark matter experiments. Such a correlation between muon g−2 and the neutrino magnetic moment is generic in models employing leptonic family symmetry to explain a naturally large neutrino magnetic moment. The promising new possibilities for probing neutrino electromagnetic properties in future experiments from terrestrial experiments and astrophysical considerations will also be discussed. This talk will be based on results obtained in hep-ph 2203.01950, 2007.04291, 2104.03291, and 2303.13572.
10:45 AM Discussion, Collaboration and Lunch
Discussion, Collaboration and Lunch
10:45 AM - 3:00 PM
3:00 PM Light Neutrinophilic Dark Matter from Scotogenic Model - Vishnu Padmanabhan Kovilakam (Oklahoma State University)
Light Neutrinophilic Dark Matter from Scotogenic Model
- Vishnu Padmanabhan Kovilakam (Oklahoma State University)
3:00 PM - 3:45 PM
We explore a novel possibility of light thermal dark matter within the context of neutrino mass models. In the sub-GeV mass regime, dark matter relic solely annihilates into neutrinos without affecting the Cosmic Microwave Background anisotropies. We have proposed a minimal UV-complete model for this scenario. All new physics states lie at or below the electroweak scale, affecting Higgs physics, neutrinoless double beta decay process, and lepton flavor violating process. We find that the indirect detection of dark matter at large-volume neutrino detectors such as Dune, Hyper-Kamiokande, and JUNO experiments is the most effective way to test this model. Results will be presented.
3:45 PM Break
Break
3:45 PM - 4:00 PM
4:00 PM TBD - Bei Zhou (Johns Hopkins University)
TBD
- Bei Zhou (Johns Hopkins University)
4:00 PM - 4:45 PM
4:45 PM Break
Break
4:45 PM - 5:00 PM