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Malcolm Fairbairn (King's College London)28/06/2021, 12:00
The Search for clues as to the nature of Dark Matter continues in more varied and novel ways than ever before and has never been more challenging nor more stimulating. In this talk I will describe a variety of approaches that have been worked on over the past years, focusing shamelessly on those I have been involved in personally. We can learn about dark matter through observations of dwarf...
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Marco Drewes28/06/2021, 12:50
Observations strongly indicate that the baryonic matter in the observable universe is the remnant of a matter-antimatter asymmetry in the primordial plasma, which cannot be explained by the Standard Model of particle physics. If the new particles that are responsible for this asymmetry have masses below the TeV scale they may be discovered within the next decade. Using the example of low scale...
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Prateek Agrawal28/06/2021, 13:40
I will present some remarkable signals of axion strings coupled to photons. There are compelling theoretical motivations to expect axion strings that persist in the sky today. There is a model-independent polarization rotation of CMB photons in the string background, equal to $\alpha_{em}$ up to a rational number related to the fundamental unit of electromagnetic charge. This manifests itself...
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Rebecca Leane28/06/2021, 15:30
Stars and planets can be ideal playgrounds to discover dark matter. In this talk, I will review a range of dark matter searches using celestial objects, including neutron stars, exoplanets, solar-system planets, and our Sun. I will discuss different search strategies, their opportunities and limitations, and the interplay of regimes where different celestial objects are optimal detectors.
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Isabel Garcia Garcia28/06/2021, 16:20
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Ofri Telem28/06/2021, 17:10
On-shell methods are particularly suited for exploring the scattering of electrically and magnetically charged objects, for which there is no local and Lorentz invariant Lagrangian description. In this paper we show how to construct a Lorentz-invariant S-matrix for the scattering of electrically and magnetically charged particles. A key ingredient is a revision of our fundamental understanding...
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Miguel Escudero29/06/2021, 12:00
I will present a new mechanism for Baryogenesis and Dark Matter production: B-Mesogenesis. Within the B-Mesogenesis paradigm, both the dark matter relic abundance and the baryon asymmetry of the Universe arise from the CP violating oscillations of B mesons and their subsequent decays in the early Universe. This mechanism would have distinctive experimental signals that I will discuss in...
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Danny van Dyk (TU München)29/06/2021, 12:50
Quark flavour physics has received a lot of attention over the last decade. The influx of attention is driven by the so-called flavour anomalies: a series of statistically significant tensions between Standard Model predictions and measurements, shy of the celeberated 5 sigma significance. I will review the status of the so-called "b anomalies", a subset of the flavour anomalies, and provide...
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Joachim Kopp29/06/2021, 13:40
We discuss some of the manifold ways in which neutrino experiments can be leveraged to probe physics beyond the Standard Model. Topics covered will include searches for light dark sectors, constraints on Standard Model Effective Field Theory (SMEFT) using LHC neutrinos, and neutrino magnetic moments. In the latter case, we highlight interesting connections to the muon g-2 anomaly and to some...
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Ilaria Brivio29/06/2021, 15:30
The LHC experiments are entering a precision era, where the sensitivity to indirect effects of new physics, i.e. discrepancies between data and SM predictions, will increase substantially.
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Searches for these signals are most conveniently performed within the framework of the Standard Model Effective Field Theory (SMEFT), that allows to implement a very ambitious program: a systematic search... -
Michelangelo Mangano (CERN)29/06/2021, 16:20
I review the potential of future colliders to improve the knowledge of Higgs properties, emphasizing the synergy and complementarity between lepton and hadron facilities.
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Roberto Franceschini (Rome 3 University)29/06/2021, 17:10
I will discuss where do we stand in the task of characterizing the Higgs boson at LHC, the future prospects to learn more from the HL-LHC and future colliders presently under study. I will focus in particular on the long term goals in the exploration of Higgs boson properties and and possible lessons to be learned about electroweak symmetry breaking.
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Daniel Baumann30/06/2021, 12:00
Cosmology is famously an observational rather than an experimental science. No experimentalists were present in the early universe, and the birth and subsequent evolution of the universe cannot be repeated. Instead, we can only measure the spatial correlations between cosmological structures at late times. A central challenge of modern cosmology is to construct a consistent "history" of the...
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Lara B. Anderson30/06/2021, 12:50
The metric on the compact internal geometry of a string compacitification has long stood as an important missing piece in the study of low energy physics arising from string theory. I will review recent progress using machine learning to approximate Calabi-Yau and SU(3)-structure metrics, including for the first time their dependence. These methods are demonstrated for Calabi-Yau as well as...
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Irene Valenzuela30/06/2021, 13:40
Quantum gravity can have important implications for Particle Physics and Cosmology. In this talk, I will describe the state-of-the-art and phenomenological implications of the AdS Distance conjecture and the Non-susy AdS Instability conjecture. In particular, we consider constraints on D-dimensional theories in Minkowski, dS and AdS backgrounds in the light of these swampland conjectures as...
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Yonit Hochberg30/06/2021, 15:00
The exploration of dark matter beyond the WIMP is of vital importance towards resolving the identity of dark matter. I will discuss new proposals for the direct detection of light dark matter which hold much promise. These include the use of superconducting nanowires, two-dimensional targets such as graphene, and heavy fermion materials. Considering dark matter interactions with these targets,...
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Marianna Safronova30/06/2021, 15:50
The extraordinary advances in quantum control of matter and light have been transformative for precision measurements enabling probes of the most basic laws of Nature to gain a fundamental understanding of the physical Universe. Exceptional versatility, inventiveness, and rapid development of precision experiments supported by continuous technological advances and improved atomic and molecular...
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Mitesh Patel (LHCb) (Imperial College London)30/06/2021, 17:10
An overview of the anomalies observed in measurements of neutral- and charged-current b quark transitions will be presented. Experimental and theoretical challenges for the relevant measurements will be discussed, and at outlook for future developments that may give clarity presented.
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Dr Thomas Kuhr (Belle II)30/06/2021, 17:45
The Belle II experiment at the SuperKEKB energy-asymmetric e+e− collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The target luminosity of the machine is $6\times10^{35}$ cm$^{−2}$s$^{−1}$ and the Belle II experiment aims to record 50 ab$^{−1}$ of data, a factor of 50 more than its predecessor. With this data set, Belle II will be able to measure the...
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Dr Adam Schreckenberger (Fermilab g-2 collaboration)30/06/2021, 18:20
The Fermilab Muon g-2 Collaboration recently measured the muon magnetic anomaly with an unprecedented precision of 0.46 ppm. The new result is consistent with the measurement published by the g-2 experiment based at Brookhaven National Laboratory, and a difference of 4.2 standard deviations exists between the Standard Model prediction recommended by the Muon g-2 Theory Initiative and the...
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Dr Monika Blanke30/06/2021, 18:55
Over the past few years, several anomalies related to the violation of lepton flavour universality emerged in charged and neutral current B meson decays, and also the longstanding tension in the muon g-2 has been strengthened by recent data. In this talk I will review possible New Physics explanations of these anomalies and discuss how they can be probed by complementary observables in the...
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