Explanipedia

Reducing Simulation Dependence in Neutrino Telescopes with Masked Point Transformers Open

G. B. Yu, N. Kamp, C. R. Argüelles · 2025

Quark-universal $U(1)$ breaking scalar at the LHC Open

Lorin Armbruster, G. B. Yu · 2025

If the quarks or leptons are charged under a new $U(1)$ gauge symmetry, then besides a $Z'$ boson there must exist at least one new boson whose decay products include Standard Model particles. In the case of a minimal symmetry breaking sec…

Non-vanilla Axion Solutions to the Strong CP Problem Open

G. B. Yu · 2025

Evolution of “Production–Living–Ecological” Spaces Conflicts and Their Impacts on Ecosystem Service Values in the Farming–Pastoral Ecotone in Inner Mongolia During Rapid Urbanization Open

Ziqi Yu, Meng Xi, G. B. Yu · 2025

Rapid urbanization is causing ecological and environmental issues to worsen. The stability of the ecosystem function of the farming–pastoral ecotone (FPE) in Inner Mongolia is essential to ensuring the sustained growth of the nearby cities…

Consistent electroweak phenomenology of a nearly degenerate boson Open

P. Lo Chiatto, G. B. Yu · 2025

Extracting constraints on the kinetic mixing of a new U(1)′ gauge boson hiding under the Standard Model Z boson resonance requires the formalism of non-Hermitian two-point correlation functions at 1-loop order. We derive self-consistent co…

Topology Optimization Design of a Hub Central Component Considering Fatigue Performance Open

Rui Xu, Chunxiao Gao, Jiangtao Shi, G. B. Yu, Quhao Li · 2025

LoRA Done RITE: Robust Invariant Transformation Equilibration for LoRA Optimization Open

J. Yen, Si Si, Meng Zhao, G. B. Yu, Sai Surya Duvvuri , et al. · 2024

Low-rank adaption (LoRA) is a widely used parameter-efficient finetuning method for LLM that reduces memory requirements. However, current LoRA optimizers lack transformation invariance, meaning the actual updates to the weights depends on…

Dijet and electroweak limits on a boson coupled to quarks Open

Bogdan A. Dobrescu, G. B. Yu · 2024

An insightful way of presenting the LHC limits on dijet resonances is the coupling-mass plot for a Z′ boson that has flavor-independent quark interactions. This also illustrates the comparison of low-mass LHC sensitivity with constraints o…

Primer on Axion Physics Open

G. B. Yu · 2023

The canonical axion potential is reviewed, with an emphasis on the field theory underlying radial and angular modes of complex scalar fields. The explicit calculation of the instanton‐induced breaking of the Goldstone field direction neces…

Primer on Axion Physics Open

G. B. Yu · 2023

I review the canonical axion potential, with an emphasis on the field theory underlying radial and angular modes of complex scalar fields. I present the explicit calculation of the instanton-induced breaking of the Goldstone field directio…

Lighter QCD axion from anarchy Open

Fatemeh Elahi, Gilly Elor, Alexey Kivel, Julien Laux, Saereh Najjari , et al. · 2023

We introduce the Anarchic Axion, a class of axion models which solves the Strong CP problem within current nEDM constraints with a lighter than usual QCD axion, thus populating new parameter space that ongoing and future experiments target…

Quantum Imprint of the Anharmonic Oscillator Open

P. Lo Chiatto, S. Schenk, G. B. Yu · 2023

We study the anharmonic double well in quantum mechanics using exact Wentzel-Kramers-Brillouin (WKB) methods in a 't Hooft-like double scaling limit where classical behavior is expected to dominate. We compute the tunneling action in this …

What can a GNOME do? Search targets for the Global Network of Optical Magnetometers for Exotic physics searches Open

S. Afach, Deniz Aybas, Hendrik Bekker, B. C. Buchler, Dmitry Budker , et al. · 2023

Numerous observations suggest that there exist undiscovered beyond-the-Standard-Model particles and fields. Because of their unknown nature, these exotic particles and fields could interact with Standard Model particles in many different w…

Axion couplings in gauged U(1)′ extensions of the Standard Model Open

Alexey Kivel, Julien Laux, G. B. Yu · 2023

A bstract We explore the effective theory of an axion in a gauged baryon number symmetry extension of the Standard Model (SM), where the axion is realized from a Dine-Fischler-Srednicki-Zhitnitsky (DFSZ) model construction. Integrating out…

Supersizing axions with small size instantons Open

Alexey Kivel, Julien Laux, G. B. Yu · 2022

EF09 New Bosons and Heavy Resonances [Slides] Open

R. M. Harris, G. B. Yu · 2022

of the SM bosons will be collimated into a smaller area such that they are clustered within a single large cone jet. Dedicated reconstruction techniques are used to distinguish the merged decay products of W, Z and H bosons produced with h…

The coannihilation codex Open

Michael J. Baker, Joachim Brod, Sonia El Hedri, Anna Kamińska, Joachim Kopp , et al. · 2022

We present a general classification of simplified models that lead to dark matter (DM) coannihilation processes of the form DM + X → SM₁ + SM₂, where X is a coannihilation partner for the DM particle and SM₁

New Physics Models of Direct CP Violation in Charm Decays Open

Wolfgang Altmannshofer, Reinard Primulando, T. Yu, G. B. Yu · 2022

In view of the recent LHCb measurement of Delta A_CP, the difference between the time-integrated CP asymmetries in D --> K+K- and D --> pi+pi- decays, we perform a comparative study of the possible impact of New Physics degrees of freedom …

Compatibility of $\\theta_{13}$ and the Type I Seesaw Model with $A_4$ Symmetry Open

Mu–Chun Chen, J. Huang, Jon-Michael O’Bryan, Alexander M. Wijangco, G. B. Yu · 2022

We derive formulae for neutrino masses and mixing angles in a type I seesaw framework with an underlying A (4) flavor symmetry. In particular, the Majorana neutrino mass matrix includes contributions from an A (4) triplet, 1, 1('), and 1("…

Dijet and electroweak limits on a $Z'$ boson coupled to quarks Open

Bogdan A. Dobrescu, G. B. Yu · 2021

An insightful way of presenting the LHC limits on dijet resonances is the coupling-mass plot for a $Z'$ boson that has flavor-independent quark interactions. This also illustrates the comparison of low-mass LHC sensitivity with constraints…

Simulation Study of SiPM Sensitivity to Rayleigh Scattering Measurement in the TallBo Chamber Open

G. B. Yu · 2021

model simulated cloud field might be caused by following reasons: (1) lacking of sub-grid scale variability; (2) lacking of organized mesoscale cyclonic advection of hydrometeors behind a moving cyclone which may play important role to gen…

Long-lived particles at the energy frontier: the MATHUSLA physics case Open

David Curtin, Marco Drewes, Matthew McCullough, Patrick Meade, Rabindra N. Mohapatra , et al. · 2019

We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a comprehensive survey of standard model (SM) extensions. LLPs are a common prediction of a wide range of theories that address unsolved fundamental…

Exotic signals of vectorlike quarks Open

Bogdan A. Dobrescu, G. B. Yu · 2018

Vectorlike fermions are an important target for hadron collider searches. We\nshow that the vectorlike quarks may predominantly decay via higher-dimensional\noperators into a quark plus a couple of other Standard Model fermions. Pair\nprod…

Doppler Shifted Unruh Radiation: The Non-Relativistic Spectrum Open

Jeff S. Lee, Gerald Cleaver, G. B. Yu · 2017

In this note, the non-relativistic Doppler spectrum of the Unruh radiation from an accelerating mass is determined. Additionally, the scattering of thermal bath photons off an accelerating electron in an electromagnetic field, as seen by a…

Collider constraints and new tests of color octet vectors Open

Malte Buschmann, G. B. Yu · 2017

We analyze the collider sensitivity for new colored resonances in $t\\bar{t}$,\n$b \\bar{b}$, and $jj$ final states. While searches in the single production\nchannel are model-dependent, the pair production rate is model independent and\nt…

Phenomenology of enhanced light quark Yukawa couplings and the W±h charge asymmetry Open

G. B. Yu · 2017

Exotic Signals of Vectorlike Quarks Open

Bogdan A. Dobrescu, G. B. Yu · 2016

Vectorlike fermions are an important target for hadron collider searches. We show that the vectorlike quarks may predominantly decay via higher-dimensional operators into a quark plus a couple of other Standard Model fermions. Pair product…

Hunting for dark matter coannihilation by mixing dijet resonances and missing transverse energy Open

Malte Buschmann, Sonia El Hedri, Anna Kamińska, Jia Liu, Maikel de Vries , et al. · 2016

Angular observables for spin discrimination in boosted diboson final states Open

Malte Buschmann, G. B. Yu · 2016

We investigate the prospects for spin determination of a heavy diboson\nresonance using angular observables. Focusing in particular on boosted fully\nhadronic final states, we detail both the differences in signal efficiencies\nand distort…

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