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Fiona McCarthy02/06/2025, 09:30
The cosmic microwave background (CMB) provides us with an extremely well-calibrated and well-understood photon source: it is incredibly uniform (to within 0.001%), and follows an almost perfect black-body spectrum. As it shines through the entire evolving Universe, it passes through a range of diverse environments and interacts with various structures, picking up new signals. CMB observations...
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Dr Yu-Dai Tsai (UC Irvine)02/06/2025, 10:00
Dark matter, neutrinos, and gravity interact feebly with the rest of the Standard Model particles, yet govern how the Universe evolves and operates. Together, they are the elusive parts of the Universe that have profound implications for particle physics, astrophysics, and cosmology. In this talk, I will use the planetary-defense mission, OSIRIS-REx, and the precision tracking data of the...
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Duarte Miguel da Silva Feiteira (University of Helsinki)02/06/2025, 11:00
Gravitational particle production provides an ever-present background in non-thermal dark matter studies. I discuss the correspondence between the Starobinsky and Bogolyubov approaches to the problem of inflationary particle production, and derive strong constraints on frameworks with scalar dark relics.
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Teppei Katori02/06/2025, 11:30
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Clelia Altomonte (King's College London)02/06/2025, 13:30
Upon their evaporation via Hawking radiation, primordial black holes (PBHs) may deposit energy in the ambient plasma on scales smaller than the typical distance between two black holes, leading to the formation of hot spots around them. My talk will be based on arXiv:2501.05531, where we investigate how the corresponding rise of the local temperature during the evaporation may act as a shield...
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John Carlton02/06/2025, 14:00
Atom interferometers offer exceptional sensitivity to ultra-light dark matter (ULDM) through their precise measurement of phenomena acting on atoms. Previous work has established their capability to detect scalar and vector ULDM, but their potential for detecting spin-2 ULDM has until recently remained unexplored. In this talk I will introduce the sensitivity of atom interferometers to spin-2...
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Yunji Ha (IPPP, Durham)02/06/2025, 14:30
In this talk, I will show a novel minimal non-abelian gauge group to embed the G_{SM}/Z1 quotient with fractionally charged beyond the standard model matter fields and show how we can define a new quantum number n_6 that is written in terms of the generators of G_{SM}. We also comment on interesting aspects of this new number, like how the degree of compositeness can shift n_6. This new...
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Jeffrey Grube (King's College London)02/06/2025, 15:30
The Cherenkov Telescope Array Observatory (CTAO) is the next-generation observatory for ground- based gamma-ray astrophysics. CTAO will achieve unprecedented sensitivity and angular resolution at energies from 20 GeV to 300 TeV across both the northern and southern hemisphere skies. Con- struction and early operations are underway at the two sites of La Palma in the Canary islands, and in the...
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02/06/2025, 16:10
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Teppei Katori03/06/2025, 09:50
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Teppei Katori03/06/2025, 10:00
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Joao Coelho03/06/2025, 10:30
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Amina Khatun03/06/2025, 11:30
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Dan Barrow03/06/2025, 12:00
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Yiwen Yang03/06/2025, 13:30
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Isabel Goos03/06/2025, 14:00
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Rory Ramsden03/06/2025, 14:30
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03/06/2025, 15:30
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Nahid Bhuiyan03/06/2025, 16:00
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Katharine Dixon03/06/2025, 16:20
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Yael Deniz03/06/2025, 16:40
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Fiona McCarthy
The cosmic microwave background (CMB) provides us with an extremely well-calibrated and well-understood photon source: it is incredibly uniform (to within 0.001%), and follows an almost perfect black-body spectrum. As it shines through the entire evolving Universe, it passes through a range of diverse environments and interacts with various structures, picking up new signals. CMB observations...
Go to contribution page -
Duarte Miguel da Silva Feiteira (University of Helsinki)
Gravitational particle production provides an ever-present background in non-thermal dark matter studies. I discuss the correspondence between the Starobinsky and Bogolyubov approaches to the problem of inflationary particle production, and derive strong constraints on frameworks with scalar dark relics.
(Based on D. Feiteira, O. Lebedev, arXiv:2503.14652)
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John Carlton
Atom interferometers offer exceptional sensitivity to ultra-light dark matter (ULDM) through their precise measurement of phenomena acting on atoms. Previous work has established their capability to detect scalar and vector ULDM, but their potential for detecting spin-2 ULDM has until recently remained unexplored. In this talk I will introduce the sensitivity of atom interferometers to spin-2...
Go to contribution page -
Rory Ramsden (King's College London)
With neutrino physics becoming more precise comes the opportunity to validate the unitary nature of the lepton mixing matrix which underpins it. While the assumption of unitarity for the 3x3 matrix is exploited in neutrino oscillation measurements, deviations of unitarity could hint at several neutrino mass generation models which are reliant on such. Efforts have been made to present global...
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Yael Deniz (University of Idaho)
Continued improvements in the treatment of oscillation parameter uncertainties, flux modeling, and detector response not only enhance precision in neutrino physics but also open the door to a breakthrough application of particle physics in Geophysics, a technique known as Neutrino Oscillation Tomography. This method probes Earth’s internal structure by leveraging changes in oscillation...
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Yunji Ha (IPPP, Durham)
In this talk, I will show a novel minimal non-abelian gauge group to embed the G_{SM}/Z1 quotient with fractionally charged beyond the standard model matter fields and show how we can define a new quantum number n_6 that is written in terms of the generators of G_{SM}. We also comment on interesting aspects of this new number, like how the degree of compositeness can shift n_6. This new...
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Hardik Jitendra Kuralkar (Indian Institute of Science Education and Research Bhopal)
This talk will discuss my work on primordial GWs from modified gravity (arXiv:2502.03573). We probe the spectrum of primordial gravitational waves (GWs) produced during the eras of hyperkination, kination, and reheating in a non-minimally coupled, $\mathcal{L} \propto (1+ \xi \chi /M_{\text{Pl}})^t (R+\alpha R^2)$, modified gravity model using the Palatini formulation under a runaway inflaton...
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Clelia Altomonte (King's College London)
Upon their evaporation via Hawking radiation, primordial black holes (PBHs) may deposit energy in the ambient plasma on scales smaller than the typical distance between two black holes, leading to the formation of hot spots around them. My talk will be based on arXiv:2501.05531, where we investigate how the corresponding rise of the local temperature during the evaporation may act as a shield...
Go to contribution page -
Isabel GOOS (APC)
The measurement of the energies and directions of atmospheric neutrinos traversing the Earth, combined with particle identification, will first answer the question of whether the neutrino mass ordering is normal or inverted. In the longer term, as neutrino telescopes currently operating (IceCube), partially completed (KM3NeT/ORCA), or under construction (Hyper-Kamiokande, DUNE) accumulate...
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Jeffrey Grube (King's College London)
The Cherenkov Telescope Array Observatory (CTAO) is the next-generation observatory for ground-based gamma-ray astrophysics. CTAO will achieve unprecedented sensitivity and angular resolution at energies from 20 GeV to 300 TeV across both the northern and southern hemisphere skies. Construction and early operations are underway at the two sites of La Palma in the Canary islands, and in the...
Go to contribution page -
Yiwen Yang
The Bartol model of atmospheric neutrino fluxes has undergone several significant updates since the last published results in the mid 2000s.
Around 2022, there was significant work done on implementing a hadron production data tuning scheme for the Bartol model. The available hadron production datasets were able to achieve a good coverage of the kinematic phase space. The post-tuning flux...
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