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PRODID:-//Department of Theoretical Physics - ECPv6.5.1.5//NONSGML v1.0//EN
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X-ORIGINAL-URL:https://web-f1.ijs.si
X-WR-CALDESC:Events for Department of Theoretical Physics
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BEGIN:VTIMEZONE
TZID:Europe/Ljubljana
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
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TZOFFSETFROM:+0200
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DTSTART:20241027T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20240509T140000
DTEND;TZID=Europe/Ljubljana:20240509T150000
DTSTAMP:20260423T223936
CREATED:20240313T125226Z
LAST-MODIFIED:20240509T123626Z
UID:21331-1715263200-1715266800@web-f1.ijs.si
SUMMARY:Maciej Kierkla: EFT of supercooled phase transition
DESCRIPTION:We present an analysis of the first-order supercooled phase transition associated with symmetry breaking in the early Universe in a classically scale-invariant model. We analyze the role of higher order thermal corrections for these transitions\, and to what extent they can be computed using dimensionally reduced effective field theory (3D EFT). This framework requires high temperature (HT) expansion to be valid\, which seems challenging due to the presence of supercooling. We show how to reliably use the HT expansion in dimensionally reduced theory for the calculation of bubble nucleation rate. We compare the obtained results to the results of the most common scheme based on the so-called daisy resummation. We further compute all of phase transition characteristics\, discuss various scenarios of completing the transition and predict resulting gravitational-wave spectra and their observational prospects in future experiments such as LISA.\nhttps://indico.ijs.si/event/2070/
URL:https://web-f1.ijs.si/event/maciej-kierkla/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (F1 tea room)
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BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20240516T140000
DTEND;TZID=Europe/Ljubljana:20240516T150000
DTSTAMP:20260423T223936
CREATED:20240427T073727Z
LAST-MODIFIED:20240516T122650Z
UID:25080-1715868000-1715871600@web-f1.ijs.si
SUMMARY:Lorenzo Ubaldi: False Vacuum Decay From Thin to Thick Walls
DESCRIPTION:The computation of the false vacuum decay rate in the situation with nearly degenerate vacua can be performed analytically in the well known thin wall approximation. If we depart from the near degeneracy of the vacua\, the approximation quickly ceases to work. This statement is known to practitioners of the field\, but it has a caveat: it is true only if one works at the leading order of the thin wall approximation. In this talk I will describe how to organize the calculation to systematically include higher order corrections in the thin wall parameter expansion. The first few orders can be computed analytically. It is enough to include them to improve the approximation and get a very accurate estimate of the bounce action also deep into thick wall regimes\, where the vacua are far apart. I plan to also briefly discuss how to deal in these cases with the calculation of the functional determinant\, also known as the prefactor\, in order to have the full proper understanding of the vacuum decay rate. In the whole talk I will only consider flat spacetime\, without gravity.\nhttps://indico.ijs.si/event/2133/
URL:https://web-f1.ijs.si/event/lorenzo-ubaldi-false-vacuum-decay-from-thin-to-thick-walls/
LOCATION:https://uu-se.zoom.us/j/64706033081 Passcode: 107002 (Zoom)
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BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20240521T140000
DTEND;TZID=Europe/Ljubljana:20240521T150000
DTSTAMP:20260423T223936
CREATED:20240429T092123Z
LAST-MODIFIED:20240521T112538Z
UID:25290-1716300000-1716303600@web-f1.ijs.si
SUMMARY:Diego Redigolo: Dark sectors at flavor factories
DESCRIPTION:I will discuss new ideas for reporpusing current flavor experiments to hunt for dark sectors particles. \nhttps://indico.ijs.si/event/2134/
URL:https://web-f1.ijs.si/event/diego-redigolo/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (F1 tea room)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20240523T140000
DTEND;TZID=Europe/Ljubljana:20240523T150000
DTSTAMP:20260423T223936
CREATED:20240416T100220Z
LAST-MODIFIED:20240515T142738Z
UID:24106-1716472800-1716476400@web-f1.ijs.si
SUMMARY:Nudžeim Selimović
DESCRIPTION:https://indico.ijs.si/event/2089/
URL:https://web-f1.ijs.si/event/nudzeim-selimovic/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (F1 tea room)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20240523T140000
DTEND;TZID=Europe/Ljubljana:20240523T150000
DTSTAMP:20260423T223936
CREATED:20240418T101241Z
LAST-MODIFIED:20240523T123631Z
UID:24290-1716472800-1716476400@web-f1.ijs.si
SUMMARY:Gašper Lipnik\, "Force inference in epithelial tissues"
DESCRIPTION:In this work\, we explore the ways of determining the mechanical properties of epithelial tissues. Knowledge of the mechanical parameters like forces between and pressures within cells leads to a deeper understanding of the processes in these tissues. To determine these parameters\, one can perform in vivo measurements using lasers\, optical tweezers\, micropipettes etc. However\, in vivo measurements are invasive\, technically challenging and local. Thus\, it is best to use noninvasive and global methods. One theoretical approach is force inference from cell shapes and connectivity as seen in microscope images\, and here we introduce three force inference methods.\nhttps://indico.ijs.si/event/2091/
URL:https://web-f1.ijs.si/event/gasper-lipnik-force-inference-in-epithelial-tissues/
LOCATION:C/0-106 – Seminarska soba fizike (F5) (Jamova)
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BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20240528T134500
DTEND;TZID=Europe/Ljubljana:20240528T144500
DTSTAMP:20260423T223936
CREATED:20240510T110600Z
LAST-MODIFIED:20240528T114345Z
UID:26366-1716903900-1716907500@web-f1.ijs.si
SUMMARY:Innes Bigaran: Leveraging intermediate resonances to probe CP-violation at colliders
DESCRIPTION:We study the phenomenological implications of interference between tree-level contributions to decays to three-body final states. CP-violation in these decays arise via different virtualities of intermediate resonances\, and the presence of SM and/or new CP phases in a model Lagrangian. We highlight the manifestation of this CP-violating observable in the interference between SM charged-current decays and new-physics contributions to effective vector interactions in the EFT and in a UV-complete model featuring a scalar leptoquark\, $S_1$. We present a novel method for searching for CP-violating new physics effects utilising the differential cross sections of $ppto d_i ell u_ell$ decays\, with a detailed study of $ppto b tau u_tau$ simulating signal and background.\nhttps://indico.ijs.si/event/2146/
URL:https://web-f1.ijs.si/event/innes-bigaran/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (F1 tea room)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20240530T140000
DTEND;TZID=Europe/Ljubljana:20240530T150000
DTSTAMP:20260423T223936
CREATED:20240411T144041Z
LAST-MODIFIED:20240530T115521Z
UID:23648-1717077600-1717081200@web-f1.ijs.si
SUMMARY:Mario Reig Lopez: Testing the far UV of the Standard Model with axions
DESCRIPTION:In this talk I will discuss axion couplings to gauge bosons in 4-dimensional Grand Unified Theories and in (heterotic) String Theory. The topological nature of these couplings allows them to be matched from the UV to the IR\, and the ratio of the anomaly with photons and gluons for any axion is fixed by unification.  I will show that this implies that there is a single axion — the QCD axion — with an anomalous coupling to photons. Other light axion-like particles can couple to photons by mixing with the QCD axion\, and necessarily lie to the right of the QCD line prediction in the mass-coupling plane. As a result\, a discovery of an axion to the left of the QCD line can rule out simple GUTs and some heterotic string compactifications.Based on: 2206.07053 and future work.\nhttps://indico.ijs.si/event/2085/
URL:https://web-f1.ijs.si/event/mario-reig-lopez/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (F1 tea room)
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