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X-WR-CALNAME:Instituto de Física Teórica
X-ORIGINAL-URL:https://www.ift.uam-csic.es
X-WR-CALDESC:Events for Instituto de Física Teórica
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TZID:Europe/Madrid
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DTSTART:20250330T010000
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DTSTART:20251026T010000
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DTSTART:20260329T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260202T150000
DTEND;TZID=Europe/Madrid:20260202T160000
DTSTAMP:20260406T014116
CREATED:20251128T152750Z
LAST-MODIFIED:20260202T161633Z
UID:23965-1770044400-1770048000@www.ift.uam-csic.es
SUMMARY:Seminar: 'F(ℓ)avoured searches: new physics in the 3rd generation'
DESCRIPTION:Title: ‘F(ℓ)avoured searches: new physics in the 3rd generation’ \nSpeaker: Tamara Vázquez Schröder (IFAE) \nVenue & Time: Red Room / 15:00 \n\n \n  \nAbstract: The primary goal of the Large Hadron Collider (LHC) has been to discover the mechanism of electroweak symmetry breaking (EWSB). The discovery of the Standard Model (SM)-like Higgs boson in 2012 was the first step to achieve this. However\, the underlying nature of EWSB remains unknown. Additionally\, the SM cannot explain the origin of neutrino masses\, the asymmetry between matter and antimatter in our universe\, or the nature of dark matter and dark energy. It also cannot address important conceptual questions\, such as why is the Higgs boson so light compared to the Planck scale\, or what are the underlying dynamics through which the Higgs field provides masses to the fundamental particles. Even though the LHC has not discovered any Beyond the Standard Model physics\, there are multiple hints in various areas of particle physics which could revolutionise our understanding of the elementary particles and the forces between them\, leading to the start of a new Higgs and Flavour Era. In this talk I will dive into promising new physics models coupled preferentially to 3rd generation quarks or leptons that could address some of the shortcomings of the SM and could potentially explain some of the observed tensions in the particle physics landscape. Being potentially at the reach of the LHC collision energy\, the search for these new physics signals in the multilepton final state could be the key to access a new era in particle physics exploration. \n  \n \n 
URL:https://www.ift.uam-csic.es/event/ift-seminar-tamara-vazquez-schroder/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260204T113000
DTEND;TZID=Europe/Madrid:20260204T170000
DTSTAMP:20260406T014116
CREATED:20260202T070813Z
LAST-MODIFIED:20260202T070813Z
UID:24319-1770204600-1770224400@www.ift.uam-csic.es
SUMMARY:Seminar: 'Co-Scaling and Alignment of Electric and Magnetic States'
DESCRIPTION:Speaker: Tom Rudelius (Durham U.\, Dept. of Math.)\n\n\n\n\n\n\nTitle: Co-Scaling and Alignment of Electric and Magnetic States\n\n\n\nVenue & Time: Red Room / 11:30\n\n\n\n\n\n\n\n\nAbstract: Towers of electrically and magnetically charged states in quantum gravity often exhibit two important properties. First\, the ratio of the mass (or tension) of electrically charged states to magnetically charged states is of order g^2\, which we refer to as “co-scaling.” Second\, in theories of multiple gauge fields\, the towers of states that exhibit co-scaling have charges that point in approximately the same direction in charge space as measured by the gauge kinetic matrix\, which we refer to as “alignment.” In this talk\, I present heuristic arguments for and examples of co-scaling and alignment in the string landscape\, and I discuss applications to phenomenology and cosmology.
URL:https://www.ift.uam-csic.es/event/seminar-co-scaling-and-alignment-of-electric-and-magnetic-states/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260205T150000
DTEND;TZID=Europe/Madrid:20260205T160000
DTSTAMP:20260406T014116
CREATED:20251121T121740Z
LAST-MODIFIED:20260126T091823Z
UID:23864-1770303600-1770307200@www.ift.uam-csic.es
SUMMARY:Seminar by Yushi Mura (KEK)
DESCRIPTION:Title: ‘UV completion of extended Higgs models via the confinement of SU(2) gauge’ \nSpeaker: Yushi Mura (KEK) \nVenue & Time: Red Room / 15:00 \nAbstract: The extended Higgs sectors are often introduced to explain phenomena beyond the standard model. On the other hand\, the existence of multiple scalar fields may cause the Landau pole below the Planck scale. Therefore\, those models should be replaced by more fundamental theory at high energies. In this talk\, we consider an asymptotic-free SU(2) gauge theory as a UV-completion of the extended Higgs models and assume they are the consequence of confinement of the gauge theory. We find that particle contents of various extended Higgs sectors previously proposed are deduced by each charge assignment of flavor symmetry of the fundamental fermions of the SU(2) gauge symmetry.
URL:https://www.ift.uam-csic.es/event/seminar-by-yushi-mura-kek/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260209T150000
DTEND;TZID=Europe/Madrid:20260209T160000
DTSTAMP:20260406T014116
CREATED:20251128T152946Z
LAST-MODIFIED:20260209T135631Z
UID:23967-1770649200-1770652800@www.ift.uam-csic.es
SUMMARY:Seminar: 'The Muon Magnetic Moment Mystery: a 20-year puzzle in high-energy physics'
DESCRIPTION:Speaker: Zoltan Fodor (Penn State U.) \nVenue & Time: Red Room / 15:00\n\nTitle: The Muon Magnetic Moment Mystery: a 20-year puzzle in high-energy physics \nAbstract: \nIn the last two decades or so there have been stronger and stronger disagreements between direct measurements of the anomalous magnetic moment of the muon and the standard-model prediction. Such a large discrepancy would be a signal for an interaction or particle not present in the standard model. However\, already in 2020 a lattice QCD calculation suggested a “no-tension” scenario. I report on our new lattice QCD calculation\, which reduced the uncertainty of our 2020 result by about 40%. The agreement between the measured value of the anomalous magnetic moment of the muon and its theoretical predictions is an extremely impressive prove of the validity of quantum field theory –with three very different calculational frameworks for QED\, EW and QCD– up to 11 digits.
URL:https://www.ift.uam-csic.es/event/seminar-by-zoltan-fodor-penn-state-u/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260223T150000
DTEND;TZID=Europe/Madrid:20260223T160000
DTSTAMP:20260406T014116
CREATED:20251014T123153Z
LAST-MODIFIED:20260225T163505Z
UID:23328-1771858800-1771862400@www.ift.uam-csic.es
SUMMARY:Seminar: 'Asymmetric Dark Matter induced by Baryogenesis'
DESCRIPTION:Title: ‘Asymmetric Dark Matter induced by Baryogenesis’ \nSpeaker: Miguel Escudero (CERN) \nVenue&Time: Red Room / 15:00 \nAbstract: We live in a Universe where structures are made out of baryons but not of antibaryons. Could the dark matter be made of particles and not antiparticles? This is an old question and many asymmetric dark matter scenarios have been proposed to date. Among them\, the models where a dark matter asymmetry is induced from the baryon/lepton asymmetries are particularly motivated. In this seminar\, I will highlight the motivations for these types of frameworks but also their challenges. I will then present a new\, minimal\, and predictive scenario that we developed in [2511.10731]. In this model\, a dark matter asymmetry is slowly generated from the Standard Model Higgs doublet asymmetry. The scenario features two dark matter states which can lead to signals in the next generation of dark matter experiments\, and we predict a new inert Higgs doublet with mass < 580 GeV which could be produced and observed at the LHC and future colliders. \n \n  \n 
URL:https://www.ift.uam-csic.es/event/seminar-by-miguel-escudero/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260224T150000
DTEND;TZID=Europe/Madrid:20260224T160000
DTSTAMP:20260406T014116
CREATED:20260129T125218Z
LAST-MODIFIED:20260219T111953Z
UID:24306-1771945200-1771948800@www.ift.uam-csic.es
SUMMARY:Seminar: Primordial black holes from Q-balls
DESCRIPTION:Speaker: Shunsuke Neda (ICRR\, Univ. of Tokyo) \nVenue & Time: Red Room / 15:00 \nTitle: Primordial black holes from Q-balls \nAbstract:  \nWe discuss primordial black holes (PBHs) originating from Q-balls\, which are non-topological solitons arising in complex scalar field theories with a global U(1) symmetry. Depending on the cosmic expansion history\, Q-balls can source PBH formation in both early matter-dominated (eMD) and radiation-dominated (RD) universes\, leading to distinct phenomenological consequences. \nIn the eMD scenario\, PBHs produced from Q-balls can account for the observed dark matter abundance\, and we summarize the resulting cosmological constraints. In contrast\, some scenarios of PBHs formed in a radiation-dominated universe exhibit strong PBH clustering. When motivated as seeds of supermassive black holes\, their abundance and spatial distribution are observationally constrained by isocurvature perturbations. For stellar-mass PBHs relevant to LIGO-Virgo-KAGRA\, we compute PBH merger rates in the presence of initial PBH clustering using updated methodologies. \nThis seminar illustrates how PBHs from Q-balls link particle physics models to cosmological\, astrophysical\, and gravitational-wave observations across multiple mass scales.
URL:https://www.ift.uam-csic.es/event/seminar-primordial-black-holes-from-q-balls/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260226T110000
DTEND;TZID=Europe/Madrid:20260226T120000
DTSTAMP:20260406T014116
CREATED:20260220T140022Z
LAST-MODIFIED:20260220T140212Z
UID:24432-1772103600-1772107200@www.ift.uam-csic.es
SUMMARY:GRASS Seminar: 'Gravitational Duality at the Lightring\, QNM isospectrality\, and Ringdown Nonlinearities from Penrose Limits'
DESCRIPTION:Gravity\, Supergravity and Superstrings (GRASS) Seminar \nSpeaker: David Pereñiguez (Johns Hopkins U.) \nTitle: ‘Gravitational Duality at the Lightring\, QNM isospectrality\, and Ringdown Nonlinearities from Penrose Limits’ \nAbstract: At high frequencies\, the physics near a black hole’s lightring can be captured by Penrose-limit plane waves adapted to the photon sphere. In this talk\, I will solve exactly the equations for gravitational perturbations in this limit using Penrose’s 2-spinor formalism\, and I will show that the resulting solutions correspond to quasinormal modes (QNMs) in the eikonal regime. I will then prove that gravitational electric–magnetic duality holds on-shell for perturbations at the lightring. This symmetry has long been understood to hold on-shell only for perturbations about flat spacetime. The lightring therefore provides a distinct setting in which it reemerges. In addition\, QNM isospectrality follows as an immediate consequence. I will next extend the analysis to nonlinear gravitational fluctuations\, where the duality is broken\, and compute the excitation of quadratic QNMs\, which are particularly relevant given recent prospects for their detection. I will conclude by discussing further directions in which Penrose limits can be used to sharpen our understanding of lightring physics.
URL:https://www.ift.uam-csic.es/event/grass-seminar-gravitational-duality-at-la-lightring-qnm-isospectrality-and-ringdown-nonlinearities-from-penrose-limits/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260226T150000
DTEND;TZID=Europe/Madrid:20260226T160000
DTSTAMP:20260406T014116
CREATED:20260119T110411Z
LAST-MODIFIED:20260225T154031Z
UID:24224-1772118000-1772121600@www.ift.uam-csic.es
SUMMARY:Seminar: 'Sub-PeV gamma-ray astronomy and its physics'
DESCRIPTION:Title: ‘Sub-PeV gamma-ray astronomy and its physics’ \nSpeaker: Sei Kato (Sorbonne Université\, Institut d’Astrophysique de Paris) \nVenue&Time: Red Room / 15:00 \nAbstract: This talk will focus on the physics that can be explored with sub-PeV gamma-ray astronomy (E > 10^14 eV)\, particularly on the Galactic diffuse gamma rays and the dark matter. Also\, our project called ALPACA\, which aims systematic sub-PeV gamma-ray observations in the southern sky for the first time in the world\, is detailedly presented.
URL:https://www.ift.uam-csic.es/event/seminar-by-sei-kato-institut-dastrophysique-de-paris/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
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