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Pedro Machado (Fermilab)15/06/2026, 08:45
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Joao Paulo Pinheiro (TDLI)15/06/2026, 09:30
Measuring the leptonic CP phase $\delta_{CP}$ and resolving the
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$\theta_{23}$ octant are primary objectives of DUNE and T2HK.
We show that two distinct effects can compromise the reliability of
these measurements. First, the poorly constrained $\nu_e$ and
$\bar{\nu}_e$ cross sections allow energy-dependent distortions that
partially mimic the $\delta_{CP}$-dependent spectral... -
Chong-Sun Chu (National Tsing-Hua University)15/06/2026, 10:45Black Holes, Gravitational Waves & Particle PhysicsOral presentation
ABSTRACT
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Black holes pose sharp consistency questions at the interface of gravity, quantum
mechanics, and thermodynamics. It is widely believed that resolving problems such
as providing a microscopic account of Bekenstein–Hawking entropy, understanding
the origin of black hole thermodynamics, and resolving the information paradox
posed by Hawking radiation will provide valuable... -
Yue Zhao15/06/2026, 11:30Black Holes, Gravitational Waves & Particle PhysicsInvited Presentation
This talk will explore how gravitational-wave interferometers can serve as powerful probes of new physics across vastly different mass scales. I will first show that data from the LIGO-Virgo-KAGRA Collaboration can help resolve a long-standing puzzle: whether the GeV gamma-ray excess at the Galactic Center originates from annihilating weakly interacting massive particles or from a population...
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Serguey Petcov (INFN/SISSA & IPMU)15/06/2026, 13:30
Neutrinos are the most amasing and interesting among the elementary particles. Neutrino physics is a vast field of research with beautiful physics and many still unanswered fundamental questions. This lecture is intended as an Introduction to Neutrino Physics. We begin by discussing briefly the history of the neutrino. The natural sources of neutrinos - the Sun, the Earth atmosphere, the Earth...
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Soojin Lee (National Tsing Hua University)15/06/2026, 14:30
We investigate the sensitivity to the Higgs trilinear coupling (κ_λ) through di-Higgs production via vector-boson fusion (VBF) at a multi-TeV muon collider. A primary advantage of the muon collider environment is the significantly suppressed QCD background compared to hadron colliders, which provides a remarkably clean experimental signature for probing electroweak processes. We perform a...
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Xinhua Peng15/06/2026, 15:45
A variety of theoretical frameworks predict the existence of spin dependent interactions beyond the Standard Model, such as dark matter and spin gravity coupling. Spin based quantum sensors, which leverage quantum coherence and precision control of quantum spins, provide an exceptionally powerful platform for probing such exotic interactions. In this talk, I will introduce our recently...
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Dr Chrisna Setyo Nugroho (IPB University)15/06/2026, 16:30
In this talk, I will present the role of interferometer in the frontier research, starting from disproving the existence of absolute reference frame to the discovery of gravitational wave. I will further discuss the potentials to probe new physics using both laser interferometers and matter interferometers.
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Hsin-Yeh Wu15/06/2026, 17:15
Many emerging experiments in quantum science and fundamental physics require "quantum eyes" that can sense extremely weak optical signals with high fidelity. In this talk, superconducting nanowire–based photon detectors operating in a dual calorimetric mode will be introduced, enabling both sensitive single‑photon detection and energy‑ or photon‑number–discriminating responses within the same...
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John Beacom (OSU)16/06/2026, 09:00
Do astrophysical sources produce TeV–PeV range neutrinos? Yes! I provide an introductory overview of neutrino production, neutrino propagation, and neutrino detection, then review key results.
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Jinheung Kim (KIAS)16/06/2026, 10:30
Recently, the CMS and ATLAS collaborations have reported a ttbar resonance excess near the ttbar threshold with above 5 sigma deviation from the SM pQCD prediction. This excess may be interpreted as a new pseudoscalar particle interacting with the top quark. Alternatively, it can be explained within the SM framework through toponium production—the bound state of a top quark pair, which can...
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Mohamed Krab16/06/2026, 11:15
We discuss the discovery prospects for a second Higgs doublet through the decay channels $A \to ZH$ and $H^+ \to W^+ H$. These decays are particularly relevant in two Higgs doublet models (2HDM) scenarios featuring a strong first-order electroweak phase transition, a necessary condition for successful electroweak baryogenesis. Within the general 2HDM, which allows flavor-changing neutral Higgs...
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Serguey Petcov (INFN/SISSA & IPMU)16/06/2026, 13:30
The existing data on neutrino masses and neutrino mixing will be reviewed. The main goals of future research in neutrino physics will be summarised. The lepton flavour problem will be revisited. The non-Abelian discrete symmetry approach to the problem of understanding the origin of the observed pattern of neutrino mixing and of leptonic CP-violation will be discussed in detail. The...
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Takeo Moroi16/06/2026, 14:30
Recent years have seen active discussion of new approaches to detecting wave-like dark matter using quantum sensors. In this talk, I will present several proposals employing quantum sensors, such as superconducting qubits and Rydberg atoms, for dark matter detection. I will also discuss the potential of entangled states to enhance signal sensitivity and suppress noise.
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Etsuko Itou16/06/2026, 15:45
We present first-principles lattice studies of dense QCD-like theories, focusing on two-color QCD where the sign problem is absent. I will discuss results on the phase structure, the equation of state, and hadron spectroscopy at finite density.
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C.-P. Yuan (Michigan State University)16/06/2026, 16:30
For decades, deuteron-based experiments established a canonical SU(2) flavor asymmetry in the proton’s light sea, with more $\bar{d}$ than $\bar{u}$ antiquarks, interpreted as a non-perturbative signature. However, these results rely on nuclear assumptions and isospin symmetry. Here, we analyze pure proton collision data from the Fermilab Tevatron and CERN LHC using measurements of Drell–Yan...
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Minjung Kweon (Inha University)16/06/2026, 17:15
Ultra-relativistic heavy-ion collisions at the Large Hadron Collider (LHC) create a deconfined state of strongly interacting matter known as the quark–gluon plasma (QGP). One of the main questions in high-energy nuclear physics is how colored quarks and gluons emerging from the QGP evolve into the hadrons and nuclear bound states observed in the final stage of the collision. In this context,...
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John Beacom (OSU)17/06/2026, 09:00
Can we drive progress in this field? Yes! I provide an overview of how to make better measurements, how we can use these to better understand astrophysics and particle physics, and how these opportunities fit in a broader framework of neutrino science.
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Tomonori Totani (Dept. Astronomy, Univ. of Tokyo)17/06/2026, 10:30
Fifteen years of the Fermi Large Area Telescope (LAT) data in the halo region of the Milky Way (MW) are analyzed to search for gamma rays from dark matter annihilation. Gamma-ray maps within the region of interest (|l| < 60 deg, 10 deg < |b| < 60 deg) are modeled using known components plus a halo-like component. A statistically significant halo-like excess is found with a spectral peak around...
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Yongsoo Jho17/06/2026, 11:15
We propose an explanation for the recently reported ultrahigh-energy neutrino signal at KM3NeT, which shows no clear association with known astrophysical sources. While decaying dark matter in the Galactic Center is a natural candidate, the observed arrival direction strongly suggests an extragalactic origin. We introduce a multicomponent dark matter scenario in which the components are part...
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Steven Worm (DESY / Humboldt-Universität zu Berlin)17/06/2026, 13:20
Quantum sensing is a transformative technology whose impact is being felt in many areas of science. The use of quantum-based sensing allows scientists to access subtle effects that elude conventional sensing techniques, and thus build detectors with unprecedented sensitivity or accuracy. In this lecture we will introduce the field of quantum sensing and explore applications in particle and...
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Fumiya Sano (UTokyo)17/06/2026, 14:25Oral presentation
Using the recently developed cosmological bootstrap method, we compute the exact analytical solution for the seed integral appearing in cosmological correlators with double massive scalar exchanges. The result is explicit, valid in any kinematic configuration, and free from spurious divergences. It is applicable to any number of fields’ species with any masses. With an appropriate choice of...
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Miftahul Maarif (National Central University)17/06/2026, 14:25Poster presentation
Investigating potential deviations from Newtonian gravity provides a vital pathway toward discovering "new physics" beyond the Standard Model. This study introduces an experimental approach to search for inverse-square-law (ISL) violations at the meter scale by utilizing a laser-interferometric gravitational-wave detector with gravity field calibrators (GCal). The GCal employs rotating...
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Manoj Kumar Singh (Institute of Physics, Academia Sinica)17/06/2026, 14:25Oral presentation
The TEXONO collaboration proposals in 2006 on reactor electron antineutrinos ($\bar{\nu}_e$) studies of coherent elastic neutrino-nucleus scattering ($\nu A_{el}$) using low-threshold Ge detectors stimulated extensive experimental activity [1], and subsequently demonstrated sub-keV Ge detector technology for neutrino and dark matter experiments with reliable performance in the sub-keV energy...
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Hieu The Pham (Department of Physics, National Tsing Hua University)17/06/2026, 14:35Poster presentation
We study the interplay between gravitational waves (GWs) from domain wall collapse and the electron electric dipole moment (EDM) in a complex singlet extension of the Standard Model with dimension-five Yukawa interactions. In this model, CP-related degenerate vacua lead to the formation of CP domain walls. While the resulting GWs probe the scalar vacuum structure, they do not inherently...
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Dr Avinanda Chaudhuri (Brahmananda Keshab Chandra College)17/06/2026, 14:45Oral presentation
We study the emergence of approximate neutrino texture structures in the minimal scotogenic model using large-scale Casas--Ibarra parameter scans subject to dark matter and lepton flavor violation constraints. We show that phenomenological consistency conditions can dynamically induce approximate suppressions in specific entries of the neutrino mass matrix without imposing explicit flavor...
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GREESHMA CHANDRABHANU (Institute of Physics, Academia Sinica, Taipei 11529, Taiwan & Department of Physics, Central University of South Bihar, Gaya 824236, India)17/06/2026, 14:50Oral presentation
Axion-Like Particles (ALPs) are a broader class of pseudo-Nambu-Goldstone bosons that arise in various extensions of the Standard Model (SM), especially in string theory compactifications. ALPs may be produced in the reactor core via Primakoff conversion and Compton-like processes. We report a laboratory-based search for ALPs using data from the TEXONO experiment at the Kuo-Sheng Reactor...
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Shota Saito (The University of Tokyo, Kavli IPMU)17/06/2026, 14:50Oral presentation
We classify 4D N=1 truly confining supersymmetric gauge theories, in which no center charges can be screened. This property guarantees that Wilson loops in the fundamental representation exhibit an area law. We systematically identify all such theories for simple Lie groups and determine the allowed matter content. In each theory, we find condensing magnetic operators, which are expected to...
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Junseok Lee (Tohoku University)17/06/2026, 15:05Oral presentation
In quantum gauge theories, anomaly cancellation severely restricts the allowed patterns of chiral charges. We will see that, in a phenomenologically motivated framework for light minicharged particles, the anomaly cancellation conditions are equivalent to the degree $k=3$ Prouhet-Tarry-Escott problem in number theory. This correspondence immediately implies that the hidden sector must contain...
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Kung-Yu Chang (National Tsing Hua University)17/06/2026, 15:05Oral presentation
A big question in particle physics is whether neutrinos are Dirac or Majorana fermions. Apart from neutrinoless double beta decay ($0\nu\beta\beta$-decay), macroscopic neutrinoless double beta decay (MDBD) is one of the reactions whose observation implies the existence of Majorana neutrinos. MDBD is the longer version of $0\nu\beta\beta$-decay with regard to the interaction...
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Shu-Yu HO (Academia Sinica)17/06/2026, 15:10Oral presentation
In this talk, we demonstrate that TeV-scale heavy neutral leptons (HNLs) responsible for inverse-seesaw neutrino mass generation can simultaneously fix the cosmological abundance and decay properties of dark matter (DM). The spontaneous breaking of lepton number gives rise to a pseudo-Nambu-Goldstone boson that serves as a light DM candidate, whose mass originates from a small explicit...
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Chingam Fong (The Chinese University of Hong Kong)17/06/2026, 15:20Oral presentation
The search for Dark Matter (DM) signatures in the X-ray sky remains essential for testing models of decaying keV dark matter, such as sterile neutrinos and axions. With its coverage and survey depth, eROSITA provides unprecedented sensitivity to keV dark matter. We present a search for X-ray lines using all available data from the eROSITA Data Release 1 (DR1), and interpret the result in the...
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Yixuan Lin (NTHU)17/06/2026, 15:20Oral presentation
Primordial Black Holes (PBHs) are an attractive candidate for Dark Matter (DM) and there has been extensive experimental efforts to look for them. The so-called asteroid mass window $10^{17}$ g - $10^{23}$ g is particularly interesting,as current observations allow such PBHs to constitute all of DM.
In this work we discuss a scenario where PBHs are surrounded by a cloud of superradiantly...
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Valentin Moos (NYCU)17/06/2026, 16:00Oral presentation
In my talk, I will motivate the study of transverse momentum dependent (TMD) parton distribution functions (PDFs) and explain the framework of factorisation of a scattering process and parametrising the TMDPDFs.
I will demonstrate what we can achieve with this formalism and discuss the state of the art by discussing results obtained by different groups.
In particular I will discuss our...
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Bo-Yu Lin (NTHU, Taiwan)17/06/2026, 16:00Oral presentation
We probe dark matter with gravitational wave detectors by introducing an additional Yukawa-like interaction between dark matter and the detector. In this talk, we investigate the signal induced by kg-scale dark matter in an interferometer, and an algorithm to distinguish the signal from the noise in the detector.
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Hiroyuki Ishida (Toyama Prefectural University)17/06/2026, 16:00Oral presentation
We propose a hybrid inflationary scenario based on eight-flavor hidden QCD with the hidden colored fermions being in part gauged under B−L gauge symmetry. This hidden QCD is almost scale-invariant, so-called walking, and predicts the light scalar meson (the walking dilaton) associated with the spontaneous scale breaking, which develops the Coleman-Weinberg (CW) type potential as the...
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Yu Min Yeh (National Tsing Hua University)17/06/2026, 16:15Oral presentation
The memory-burden effect stabilizes the evaporating Primordial Black Holes (PBHs) before its complete decay. This also suppresses the evaporation flux via the entropy factor to the $k$-th power and circumvents severely astrophysical and cosmological constraints, such that it opens a new mass window for PBH Dark Matter lighter than $10^{15}$ g which has entered the memory-burden phase in the...
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Navneet Krishnan (Australian National University)17/06/2026, 16:25Oral presentation
Weakly-Interacting Massive Particles (WIMPs) remain one of the leading candidates for dark matter. One aspect of the search for such particles is direct detection, where terrestrial detectors aim to observe or constrain interactions between WIMPs and nuclei. This requires the application of a nuclear structure model in order to effectively predict the potential nuclear responses to WIMP...
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Prof. Tanmoy Modak (Indian Institute of Science Education and Research Berhampur)17/06/2026, 16:25Oral presentation
In this talk, I will discuss the impact of preheating and higher-dimensional operators on the high spectral index ($n_s$) measured by ACT/SPT collaborations in the CMB+BAO data. The recent results place Higgs-Starobinsky inflation in tension at the $2\sigma$ level. I will show how preheating and higher-dimensional operators can help alleviate this tension.
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Kuan-Yen Chou (Department of Physics, National Tsing Hua University)17/06/2026, 16:30Oral presentation
Axions are hypothetical pseudoscalar particles that have been regarded as promising dark matter (DM) candidates. On the other hand, extended compact objects such as axion stars, which are supported by gravity and axion self interactions, may have also been formed in the early Universe and comprise part of DM. In this work, we consider the lensing of electromagnetic signals from distant sources...
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Yen-Hsun Lin (Academia Sinica)17/06/2026, 16:45Oral presentation
We propose a novel strategy to probe feebly-interacting particles (FIPs) by exploiting the dense, confined circumstellar medium (CSM) surrounding core-collapse supernovae (CCSNe). FIPs produced in the proto-neutron star can deposit substantial visible energy into the CSM via decay prior to the shock breakout from the progenitor star. This energy injection heats and ionizes the CSM,...
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Mathew Thomas (IISER Thiruvananthapuram)17/06/2026, 16:50Oral presentation
Baryon number violation in the visible sector induced by anti-baryonic dark matter provides a viable mechanism for low-scale baryogenesis. Two of the most sensitive probes of this scenario are neutron decay processes such as $n \to \bar{\nu} + \text{invisible}$ and $n \to \pi^0 + \text{invisible}$. In this work, we discuss the possible spontaneous breaking of baryon symmetry in the dark sector...
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Rituparna Ghosh (Indian Institute of Technology Kanpur)17/06/2026, 16:50Oral presentation
The absence of conclusive evidence for beyond the Standard Model (BSM) physics at the Large Hadron Collider (LHC) motivates the exploration of unconventional signatures alongside precision measurements. In this work, we investigate the Georgi-Machacek model, an extension of the Standard Model scalar sector with one complex and one real $SU(2)$ triplet, which allows sizable triplet vacuum...
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Ujjal Kumar Dey (IISER Berhampur)17/06/2026, 17:10Oral presentation
The existence of a rapidly spinning black hole and an ultralight boson capable of forming superradiant cloud around it can provide a non-zero lower bound on fermion couplings with the ultralight bosons. We propose that a manifestation of it in terms of neutrinos can provide a minimal and concrete realization of the mechanism and can produce a diffuse cosmic background of neutrinos. In this...
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Juhi Dutta (NTU, Taiwan)17/06/2026, 17:15Oral presentation
Dark matter remains one of the most compelling indications of new physics beyond the Standard Model. In this talk, I will present theoretical frameworks accommodating dark matter candidates, focusing on their dark matter phenomenology and how their signatures can be explored at collider experiments, alongside direct and indirect detection searches. I will place particular emphasis on extended...
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Nivedita Ghosh (Kavli IPMU (WPI), UTIAS, University of Tokyo)17/06/2026, 17:15Oral presentation
We propose a new search strategy for long-lived doubly charged scalars at future lepton colliders. These particles arise in models that explain tiny neutrino masses via the Type-II seesaw mechanism. For certain masses and parameters, they can travel a measurable distance before decaying into same-sign muon pairs, producing clear displaced-vertex signatures. We study their production at the...
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Madhurima Chakraborty (Institute of Physics, Academia Sinica, Taipei, Taiwan)17/06/2026, 17:35Oral presentation
Neutrinos in dense astrophysical environments such as core-collapse supernovae (CCSNe) and neutron star mergers (NSM) can undergo FFCs, which could develop on extremely small scales. A necessary condition for the occurrence of FFCs is the presence of a zero crossing in the electron lepton number (ELN) angular distribution of neutrinos. In this work, we explore machine learning (ML) approaches...
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Mr Samuel S. H. Tse (The Chinese University of Hong Kong)17/06/2026, 17:40Oral presentation
We demonstrate the differences, with and without directionality information from knockout neutrons, on the sensitivities of Jiangmen Underground Neutrino Observatory JUNO on dark matter (DM) direct detection. Sub-GeV DM can be boosted by cosmic rays to leave a detectable signal in liquid scintillator detectors. These boosted dark matter (BDM) are dominate around the galactic center due to DM...
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Vishakha Lingadahally (Royal Holloway, University of London)17/06/2026, 17:40Oral presentation
The process of top quark pair production via the decay of the scalars in the 1-Higgs-Singlet extension of the Standard Model is associated with large interference effects between the loop-induced SM-like Higgs and heavy Higgs amplitudes, and the QCD continuum background. We attach leptonic decays to the di-top final state at NLO and study the effects of spin correlation in the process. We also...
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Labh Singh (Central University of Himachal Pradesh)17/06/2026, 17:55Poster presentation
This work explores the neutrino phenomenology of the scoto-seesaw model under non-holomorphic $A_4$ modular flavor symmetry providing a non-SUSY framework for realization of the modular symmetry. To prevent mixing between the beyond standard model fields associated with the tree and loop-level neutrino mass contributions, we assign even and odd modular weights to these sectors, respectively. ...
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Michael A. Ivanov (Belarusian State University of Informatics and Radioelectronics)17/06/2026, 17:55Poster presentation
The Hubble constant H0 characterizes the rate of cosmological expansion in the ΛCDM model. It is a free parameter of this model and is measured using indirect, model-dependent methods. One of the model's most pressing problems is the statistically significant difference between the Hubble constant values measured at low and high redshifts — the Hubble crisis. Many hypotheses have been put...
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Dr Van Que Tran (NCTS, National Taiwan University)18/06/2026, 09:00
We present the first predictive realization of vector freeze-in dark matter from a hidden non-Abelian gauge sector, spontaneously broken to a residual $U(1)$ with a massless dark photon mediator. A massive dark vector particle-antiparticle pair acquires small millicharges via a dimension-five kinetic mixing operator that induces a dimension-four mixing term with effective coefficient...
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Andrew Cheek (Tsung-Dao Lee Institute)18/06/2026, 09:45
In this talk I will discuss the non-standard cosmology that can arise when one considers the UV physics that leads to light axions. I will focus on the case of `preferred axion models’, these are models that are consistent with post-inflationary symmetry breaking and current cosmological observations. Previously, the number of simple models that do not have a domain wall problem was thought to...
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Steven Worm (DESY / Humboldt-Universität zu Berlin)18/06/2026, 11:00
Optical atomic clocks can be made with incredible stability and accuracy; keeping time to better than one second in the age of the universe. This amazing performance can be used as the basis for an amazing detector for new physics. In this Keynote we will see what it takes to turn an ultra-stable clock into an ultra-sensitive detector for the effects of ultra-light dark matter. We will discuss...
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Hsiang-Yi Karen Yang (National Tsing Hua University)18/06/2026, 13:30
Active galactic nuclei (AGN) inject enormous amounts of energy into their environments through relativistic jets, cosmic rays (CRs), and magnetized outflows, producing spectacular non-thermal structures from the Fermi/eROSITA bubbles in the Milky Way and newly discovered odd radio circles (ORCs). The evolution and emission properties of these systems are strongly influenced by plasma...
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Karolin Hymon18/06/2026, 14:15
We present POLARIS, a new sparse radial detector design for an underwater neutrino telescope. The design targets multi-PeV horizontal tracks with a minimal instrumentation density of around 1000 Digital Optical Modules. We evaluate the astronomy potential of this design through 5-sigma point source and diffuse flux detection limit, benchmarking against IceCube, KM3NeT ARCA, TRIDENT, NEON,...
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Jakob EHRING (Academia Sinica, Institute of Physics)18/06/2026, 15:00
Massive stars end their lives as giant explosions. What starts as a collapse of the stellar core is turned into an explosion driven by energy transfer of neutrinos. The neutrino densities become so high that coherent flavor conversions develop.
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I give an overview of the explosion mechanism and the importance of neutrinos. I will present a set of 76 simulations in axial symmetry initialized... -
Torben Christian Frost18/06/2026, 16:15Black Holes, Gravitational Waves & Particle PhysicsInvited Presentation
The 21st century marks the beginning of the age of multimessenger astronomy. After decades of waiting the ground-based gravitational wave detectors of the Laser Interferometer Gravitational-Wave Observatory allowed us to directly detect gravitational waves, and the expanding network of neutrino detectors provided us with access to a broad range of previously undetected neutrino sources. Thus...
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