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BEGIN:VEVENT
SUMMARY:Building Simulation-Based Cosmological Inference for Stage-IV LSS 
 Surveys
DTSTART:20260414T130000Z
DTEND:20260414T140000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2534@indico.ifae.es
DESCRIPTION:Speakers: Tomasz Kacprzak (ETHZ)\n\nSimulations-based inferenc
 e (SBI) has emerged as a powerful tool for extracting significantly more c
 osmological information from large-scale structure probes. However\, build
 ing SBI is a complex and challenging task\, requiring interdisciplinary wo
 rk in map-level modeling (substructure\, galaxy-halo connection\, galaxy e
 volution\, baryon feedback\, intrinsic alignments)\, high-performance comp
 uting (building N-body simulators\, parallel code optimization\, dealing w
 ith IO and storage)\, and artificial intelligence (map-level emulation\, p
 ainting\, cosmological inference methodology). In this talk\, I will discu
 ss key elements of these aspects and present how we can build SBI for Stag
 e-IV surveys in practice. I will also share our insights from the previous
  and ongoing map-level analyses of the Dark Energy Survey.\n\nhttps://indi
 co.ifae.es/event/2534/
LOCATION:C7b/058 - Seminar (IFAE Main Building C7b)
URL:https://indico.ifae.es/event/2534/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Measuring Electron Identification Efficiency in the ATLAS Detector
DTSTART:20260415T110000Z
DTEND:20260415T120000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2539@indico.ifae.es
DESCRIPTION:Speakers: Atanay Odella\n\nIdentifying electrons amidst the sp
 ray of particles at the Large Hadron Collider is one of the most significa
 nt data-processing challenges in modern physics. This talk details the mul
 ti-stage process of electron reconstruction in the ATLAS experiment. We wi
 ll discuss the fundamental physics of how electrons interact with the dete
 ctor’s layers and how these signals are combined into a Likelihood-based
  identification score. A central focus will be the Tag and Probe technique
 \, an elegant statistical method that allows to measure detector performan
 ce using real data rather than relying solely on simulations. We will conc
 lude with a look at the future\, discussing how Deep Neural Networks (DNNs
 ) are being trained on low-level calorimeter data to push identification l
 imits further.\n\nhttps://indico.ifae.es/event/2539/
LOCATION:IFAE Seminar Room (In-person)
URL:https://indico.ifae.es/event/2539/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Probing the Standard Model to eleven digits with the muon magnetic
  moment
DTSTART:20260420T100000Z
DTEND:20260420T120000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2382@indico.ifae.es
DESCRIPTION:Speakers: Laurent Lellouch\n\nThe Muon g−2 Experiment at Fer
 mi National Accelerator Laboratory has recently concluded its six-year dat
 a-taking campaign\, delivering a measurement of the muon's anomalous magne
 tic moment with an unprecedented precision of 0.127 parts per billion — 
 one of the most stringent tests of the Standard Model ever performed. Howe
 ver\, to fully leverage this experimental tour de force in the search for 
 new fundamental physics demands a theoretical prediction with comparable a
 ccuracy.\nIn this talk\, I will survey the current experimental and theore
 tical landscape of the muon anomalous magnetic moment before presenting a 
 first-principles calculation of the hadronic vacuum polarization contribut
 ion — the largest source of uncertainty in the Standard Model prediction
 . When combined with all other Standard Model contributions\, the result o
 f this calculation yields a prediction that agrees with experiment within 
 one standard deviation\, confirming the Standard Model to eleven significa
 nt digits and sharpening constraints on physics beyond it.\n\nhttps://indi
 co.ifae.es/event/2382/
URL:https://indico.ifae.es/event/2382/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Manifest gauge invariance and old-fashioned perturbation theory
DTSTART:20260422T090000Z
DTEND:20260422T103000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2541@indico.ifae.es
DESCRIPTION:Speakers: Ryan Daniel Plestid\n\n\nWhen dealing with bound sta
 tes (e.g.\, atoms or nuclei) many calculations are most efficiently carrie
 d out using old-fashioned perturbation theory. \nIt is difficult\, howeve
 r\, to see how gauge invariance manifests at the level of the amplitude (t
 his is related to the non-conservation of energy in OFPT). \nIn this talk
  I will explain how a partial-fraction trick can reorganize amplitudes int
 o a form that is manifestly gauge invariant. Remarkably\, when applied to
  \nthe Compton tensor\, the resulting amplitude decomposes into four sepa
 rate gauge invariant pieces that are naturally organized around a heavy-ma
 ss \nexpansion. \n\n \n\nhttps://indico.ifae.es/event/2541/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2541/
END:VEVENT
BEGIN:VEVENT
SUMMARY:How to sparkle in gamma rays
DTSTART:20260422T110000Z
DTEND:20260422T120000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2544@indico.ifae.es
DESCRIPTION:Speakers: Sarah Wagner\n\nIf visible to the human eye\, the ni
 ght sky would sparkle in gamma rays. This flickering arises from the extre
 me variability of blazar jets (alongside gamma-ray bursts and galactic sou
 rces). In this talk\, I introduce active galactic nuclei (AGN) and blazars
  which are powered by supermassive black holes at the centers of galaxies.
  I present the established blazar classification into Flat Spectrum Radio 
 Quasars (FSRQs) and BL Lac objects (BLLs)\, traditionally defined by their
  emission-line properties. I then show that their gamma-ray variability al
 so differs systematically. Using stochastic time-series modeling with Orns
 tein–Uhlenbeck processes\, I characterize blazar light curves in terms o
 f variability amplitude and correlation timescale. FSRQs exhibit faster\, 
 more erratic variability\, while BLLs show smoother\, longer-memory behavi
 or. These results suggest that variability is not just a byproduct\, but a
  probe of the underlying jet physics—offering new constraints on the env
 ironments and emission mechanisms powering gamma-ray blazars.\n\nhttps://i
 ndico.ifae.es/event/2544/
LOCATION:IFAE Seminar Room (In-person)
URL:https://indico.ifae.es/event/2544/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gravitational waves from phase transitions in the early Universe: 
 sound waves and MHD turbulence
DTSTART:20260423T130000Z
DTEND:20260423T143000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2434@indico.ifae.es
DESCRIPTION:Speakers: Alberto Roper Pol\n\nGravitational waves (GWs) can b
 e produced by a first-order phase transition in the early Universe via the
  fluid perturbations induced in the primordial plasma by the expansion and
  collision of broken-phase bubbles. I will review the production of GWs by
  the anisotropic stresses of velocity and magnetic fields induced in a fir
 st-order phase transition and present recent developments on the analytica
 l estimates and numerical simulations that address the stochastic GW backg
 round produced by acoustic motion (sound waves) and magnetohydrodynamic (M
 HD) turbulence. These GWs could be detectable by current and future GW det
 ectors like LISA or PTA\, potentially providing us with direct clean infor
 mation of the physics at the high energies of the early Universe and probi
 ng beyond the Standard Model physics. In addition\, the presence of magnet
 ic fields at a phase transition leads to coupled non-linear fluid perturba
 tions\, described by MHD turbulence\, that will impact the cosmological GW
  background. The study of these effects can be used to put constraints on 
 primordial magnetic fields. These fields would evolve until present time a
 nd leave observable imprints in\, for example\, the CMB and in the cosmic 
 voids of the large-scale structure of the Universe\, allowing us to combin
 e GW observations with other cosmological and astrophysical observations i
 n a multi-messenger approach.\n\nhttps://indico.ifae.es/event/2434/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2434/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The ATLAS Exotics programme: How we are organising the search for 
 new physics for Run 3 and beyond
DTSTART:20260428T100000Z
DTEND:20260428T120000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2537@indico.ifae.es
DESCRIPTION:Speakers: Louie Dartmoor Corpe\n\nIn this talk\, I will give a
 n overview of the thinking and planning behind the search for new physics 
 in ATLAS for the rest of the LHC lifetime.In particular\, with the end of 
 LHC exploitation on the horizon\, how should we best use our limited time 
 and resources to maximise our objectives? And what are our objectives in t
 he first place?I will divide the search programme into two categories (the
  "flagship" programme and the "speculative" programme) and give examples o
 f each.  I will lay out how\, in ATLAS\, we plan to make best use of new 
 analysis techniques\, new detectors\, and the expertise of our community. 
 Finally\, I will comment on how we need to ensure our searches are re-expl
 oitable in the long term\, noting the challenges ahead of us and some tent
 ative solutions.\n\nhttps://indico.ifae.es/event/2537/
LOCATION:C7b/058 - Seminar (IFAE Main Building C7b)
URL:https://indico.ifae.es/event/2537/
END:VEVENT
BEGIN:VEVENT
SUMMARY:What lies within: searching for new physics using anomaly detectio
 n with the ATLAS detector
DTSTART:20260429T083000Z
DTEND:20260429T113000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2535@indico.ifae.es
DESCRIPTION:Speakers: Jack Harrison (IFAE)\n\nThesis Director: Aurelio Jus
 teZoom:  https://us02web.zoom.us/j/89787514064?pwd=SkRaOElqanZRNFZXM2d2SE
 9PN1d0Zz09\n \n \n\nhttps://indico.ifae.es/event/2535/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2535/
END:VEVENT
BEGIN:VEVENT
SUMMARY:ET-PP INFRA-DEV Annual Meeting
DTSTART:20260505T070000Z
DTEND:20260507T210000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2444@indico.ifae.es
CONTACT:etppbcn@ifae.es
DESCRIPTION: \n\nThe ET-PP INFRA-DEV Annual Meeting will be held from 5th
  to 7th May  2026 in Barcelona\, hosted by the  the Institut de Física 
 d'Altes Energies (IFAE). The venue is the UPF (School of Management) Campu
 s in Barcelona city centre.\nThe coordinators of the different ET-PP work
  packages\, the  coordinators of the ET boards\, and the members of the E
 T governing boards and other ET key actors will meet to  report on the st
 atus of the ET-PP activities\,  define the plan for the rest of the proj
 ect\,  and discuss the post-ET-PP phase transition. \n \n \nSponsored 
 by  IFAE\n \n \n\n\nhttps://indico.ifae.es/event/2444/
LOCATION:UPF Barcelona School of Management - Barcelona
URL:https://indico.ifae.es/event/2444/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Twin Peak: the dual nature of low-mass black hole binaries
DTSTART:20260506T110000Z
DTEND:20260506T120000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2556@indico.ifae.es
DESCRIPTION:Speakers: Jam Sadiq\n\nI will give a brief overview of recent 
 work on the low-mass binary black hole (BBH) population observed in gravit
 ational waves. A central challenge in this field is disentangling contribu
 tions from multiple formation channels\, which overlap heavily in observab
 le parameter space. I will explain the iterative KDE (Kernel Density Estim
 ation) method and how we apply it to the latest LIGO-Virgo-KAGRA data thro
 ugh O4a to resolve two distinct sub-populations within the BBH merger rate
  peak at component masses of roughly 7-12 solar masses. One sub-population
  has a binary mass of ~16-20 solar masses with isotropically oriented spin
 s of magnitude ~0.1\, consistent with dynamical formation in dense stellar
  clusters. The other has a binary mass of ~18-22 solar masses with prefere
 ntially orbit-aligned spins of ~0.15\, consistent with isolated binary evo
 lution. I will discuss the implication of this results and possible future
  work with more observations of gravitational waves.\n\nhttps://indico.ifa
 e.es/event/2556/
LOCATION:IFAE Seminar Room (In-person)
URL:https://indico.ifae.es/event/2556/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Modified Microcausality from Perturbation Theory
DTSTART:20260507T100000Z
DTEND:20260507T113000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2435@indico.ifae.es
DESCRIPTION:Speakers: Giordano Cintia\n\nMicrocausality states that field 
 operators commute at spacelike separations. While this property holds dire
 ctly for Lorentz-invariant states\, it becomes more subtle when Lorentz sy
 mmetry is spontaneously broken. In this talk\, I analyze the operatorial c
 ommutator in interacting scalar field theories using the interaction pictu
 re formalism. For theories without derivative interactions\, I show that m
 icrocausality is preserved\, ensuring that the interacting commutator stil
 l vanishes outside the standard Minkowski light cone\, regardless of the s
 tate considered. In contrast\, derivative interactions modify the free-the
 ory commutator by introducing corrections proportional to derivatives of d
 elta functions\, evaluated on the light cone of the free theory. When expe
 ctation values are taken\, these corrections cancel in Lorentz-invariant s
 tates but persist in states where Lorentz symmetry is spontaneously broken
 . I show that these terms are the signal of a perturbative shift in the li
 ght-cone structure of the free theory\, due to interactions. Finally\, I s
 how how this framework can be used to shed light on the notion of light-co
 ne in the presence of dynamical gravity.\n \n \n\nhttps://indico.ifae.es
 /event/2435/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2435/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Particle production from inhomogeneities
DTSTART:20260514T100000Z
DTEND:20260514T113000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2436@indico.ifae.es
DESCRIPTION:Speakers: Andrea Tesi\n\nIn this talk I will present universal
  formulas for particle production from gravitational inhomogeneities. Focu
 sing on the massless\, conformally coupled case—valid at both weak and s
 trong coupling—I will show that the result is fully determined by the en
 ergy-momentum tensor two-point function\, unifying previous results. I wil
 l outline the derivation using the 1PI effective action and Bogoliubov tra
 nsformations\, and discuss applications to stochastic scalar and tensor ba
 ckgrounds from inflation and phase transitions. Finally\, I will show the 
 equivalence between particle production and gravitational scattering insid
 e the Hubble horizon\, linking these results to gravitational freeze-in.\n
  \n\nhttps://indico.ifae.es/event/2436/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2436/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART:20260519T100000Z
DTEND:20260519T113000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2520@indico.ifae.es
DESCRIPTION:Speakers: Subodh Patil\n\nhttps://indico.ifae.es/event/2520/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2520/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART:20260526T100000Z
DTEND:20260526T113000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2429@indico.ifae.es
DESCRIPTION:Speakers: Christopher Tunnell\n\nhttps://indico.ifae.es/event/
 2429/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2429/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD   -Medipix -SO
DTSTART:20260526T100000Z
DTEND:20260526T120000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2450@indico.ifae.es
DESCRIPTION:https://indico.ifae.es/event/2450/
URL:https://indico.ifae.es/event/2450/
END:VEVENT
BEGIN:VEVENT
SUMMARY:A taste of EWBG: Linking flavour physics and electroweak baryogene
 sis
DTSTART:20260527T090000Z
DTEND:20260527T100000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2549@indico.ifae.es
DESCRIPTION:Speakers: Cristian Felipe Sierra Fonseca\n\nThe origin of the 
 observed baryon asymmetry of the Universe (BAU) is one of the deepest puzz
 les in particle physics and cosmology. We demonstrate for the first time t
 hat new physics explaining the long standing charged $B$ meson anomalies\,
  $R(D^{(*)})$\,  can be the source of CP violation that explains the obse
 rved BAU. We consider the general two Higgs doublet model with complex Yuk
 awa couplings and compute the BAU in the semiclassical formalism. After im
 posing constraints from both flavour observables and the electron electric
  dipole moment (eEDM)\, we find that a significant BAU can still be genera
 ted for a variety of benchmark points in the parameter space\, assuming th
 e occurrence of a sufficiently strong first order electroweak phase transi
 tion. These scenarios\, which explain both $R(D^{(*)})$ and the BAU\, can 
 be probed  with future eEDM experiments and Higgs factories measurements.
 \n \nSnacks and refreshments will be served after the seminar!!\n\nhttps
 ://indico.ifae.es/event/2549/
LOCATION:C7b/058 - Seminar (IFAE Main Building C7b)
URL:https://indico.ifae.es/event/2549/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART:20260528T100000Z
DTEND:20260528T113000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2522@indico.ifae.es
DESCRIPTION:Speakers: Xin Wang\n\nhttps://indico.ifae.es/event/2522/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2522/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Observational Cosmology Colloquium
DTSTART:20260601T090000Z
DTEND:20260601T110000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2529@indico.ifae.es
DESCRIPTION:Speakers: Renée Hložek\n\nhttps://indico.ifae.es/event/2529/
LOCATION:C7b/058 - Seminar (IFAE Main Building C7b)
URL:https://indico.ifae.es/event/2529/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART:20260604T100000Z
DTEND:20260604T113000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2519@indico.ifae.es
DESCRIPTION:Speakers: Mustafa Amin\n\nhttps://indico.ifae.es/event/2519/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2519/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART:20260609T100000Z
DTEND:20260609T113000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2550@indico.ifae.es
DESCRIPTION:Speakers: Antonio Junior Iovino\n\nhttps://indico.ifae.es/even
 t/2550/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2550/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Topological gauge dynamics of Standard Model $\\theta$ vacua
DTSTART:20260618T100000Z
DTEND:20260618T113000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2558@indico.ifae.es
DESCRIPTION:Speakers: Pier Giuseppe Catinari\n\nIn this talk I will discus
 s the infrared signatures of topological terms in the Standard Model actio
 n\, focusing on their role in the strong CP problem and in non-perturbativ
 e B+L violation in the electroweak sector.\nI will first revisit the massi
 ve Schwinger model as a theoretical laboratory\, highlighting its structur
 al parallels with QCD in the large—$N_c$ limit and emphasizing the role 
 of the $\\eta'$ meson in the vanishing of the topological susceptibility o
 f QCD in the chiral limit. I will then critically examine recent claims in
  the literature (https://arxiv.org/abs/2408.07535) according to which the 
 vanishing of the electroweak topological susceptibility\, in the absence o
 f B+L violations\, proceeds in strict analogy with QCD in the chiral limit
 . Such arguments would require the presence of a new pseudoscalar state in
  the spectrum — an electroweak $\\eta'$ — mimicking the role of the $\
 \eta'$ meson in QCD.\n \n\nhttps://indico.ifae.es/event/2558/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2558/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART:20260625T100000Z
DTEND:20260625T113000Z
DTSTAMP:20260512T042800Z
UID:indico-event-2460@indico.ifae.es
DESCRIPTION:Speakers: Roger Morales\n\nhttps://indico.ifae.es/event/2460/
LOCATION:IFAE Seminar Room (In-Person)
URL:https://indico.ifae.es/event/2460/
END:VEVENT
END:VCALENDAR