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PRODID:-//Department of Theoretical Physics - ECPv6.5.1.5//NONSGML v1.0//EN
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X-WR-CALNAME:Department of Theoretical Physics
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:20220327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20221030T010000
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END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221130T150000
DTEND;TZID=Europe/Ljubljana:20221130T160000
DTSTAMP:20260403T181313
CREATED:20221125T083913Z
LAST-MODIFIED:20221129T182855Z
UID:6270-1669820400-1669824000@web-f1.ijs.si
SUMMARY:[Biophysics seminar] Matej Kanduč: "What can we learn from chicken eggs about polymer transitions?"
DESCRIPTION:Polymer brushes with stimuli-responsive properties have attracted substantial research interest in the past few years\, as they offer a wealth of opportunities to design materials that trigger structural and physico-chemical changes as a response to applied external stimuli. I will discuss our current experimental/theoretical study on conformational changes in nonionic polymer brushes induced by hydrostatic pressure and temperature variations. Interestingly\, we can learn a lot about these polymers from our everyday food – eggs.\n\n\n\n\n 
URL:https://web-f1.ijs.si/event/biophysics-seminar-matej-kanduc-proteins-polymer-transitions/
LOCATION:F1  tearoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221124T140000
DTEND;TZID=Europe/Ljubljana:20221124T150000
DTSTAMP:20260403T181313
CREATED:20220929T071957Z
LAST-MODIFIED:20221121T130958Z
UID:5261-1669298400-1669302000@web-f1.ijs.si
SUMMARY:[Biophysics journal club] Veronika Bukina: "Packaging-signal mediated assembly of phage MS2"
DESCRIPTION:
URL:https://web-f1.ijs.si/event/biophysics-journal-club-veronika-bukina/
LOCATION:Seminar room of physics (106)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221124T111500
DTEND;TZID=Europe/Ljubljana:20221124T121500
DTSTAMP:20260403T181313
CREATED:20221026T095032Z
LAST-MODIFIED:20221124T111106Z
UID:5313-1669288500-1669292100@web-f1.ijs.si
SUMMARY:Davide Dal Cin: Planck-Scale Physics and the Peccei-Quinn inflation model
DESCRIPTION:The radial direction of the Peccei–Quinn field can drive cosmic inflation\, given a non-minimal coupling to gravity. This scenario has been considered to be capable of explaining inflation\, the strong $CP$ problem\, and dark matter. We argue that Peccei–Quinn inflation is extremely sensitive to higher-dimensional operators. Further combining with the discussion on the axion quality required to solve the strong $CP$ problem\, we examine the validity of this scenario. We also show that a resonant amplification of the axion field is unavoidable after Peccei–Quinn inflation.\nhttps://indico.ijs.si/event/1501/
URL:https://web-f1.ijs.si/event/davide-dal-cin-tba/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221121T111500
DTEND;TZID=Europe/Ljubljana:20221121T121500
DTSTAMP:20260403T181313
CREATED:20221115T135751Z
LAST-MODIFIED:20221121T111809Z
UID:5989-1669029300-1669032900@web-f1.ijs.si
SUMMARY:Martín Novoa-Brunet: Probing CP violation in semi-leptonic b-decays through time-evolution
DESCRIPTION:We discuss the role of time-dependent observables in probing CP-violation in b –> s l+ l- and b –> s nu nubar decays. We identify a set of new observables by looking at the time evolution of the differential decay rate of B_d\,s –> P(S) l+ l- and B_{d\,s} –> P(V) nu nubar where the interference of B_{d\,s}-barB_{d\,s} meson mixing and decay is probed. We show that these observables do not require a time-dependent analysis but could be obtained by time-integrated or time-asymmetries if flavour tagging is available. \nThese observables are precisely predicted in the SM\, are unaffected by NP in models with real contributions to SM and chirally flipped operators\, are independent of form factors and are unaffected by hadronic uncertainties. They are however sensitive probes of NP scenarios involving new CP-odd phases.\nhttps://indico.ijs.si/event/1563/
URL:https://web-f1.ijs.si/event/martin-novoa-brunet-tba/
LOCATION:Z9/0-0 – F1 čajnica (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221117T141500
DTEND;TZID=Europe/Ljubljana:20221117T150000
DTSTAMP:20260403T181313
CREATED:20221115T113820Z
LAST-MODIFIED:20221115T113820Z
UID:5984-1668694500-1668697200@web-f1.ijs.si
SUMMARY:[Biophysics Journal Club] Matej Krajnc: "Modeling epithelial tissues as active-elastic sheets"
DESCRIPTION:
URL:https://web-f1.ijs.si/event/biophysics-journal-club-matej-krajnc-modeling-epithelial-tissues-as-active-elastic-sheets/
LOCATION:Seminar room of physics (106)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221117T111500
DTEND;TZID=Europe/Ljubljana:20221117T120000
DTSTAMP:20260403T181313
CREATED:20221026T095031Z
LAST-MODIFIED:20221117T102927Z
UID:5312-1668683700-1668686400@web-f1.ijs.si
SUMMARY:Tim Höhne: Vector-like Fermion Portals into Higgs Stability
DESCRIPTION:We address the notorious metastability of the standard model (SM) Higgs potential and promote it to a model building task: What are the new ingredients required to stabilize the SM up to the Planck scale without encountering subplanckian Landau poles? Using the SM extended by vector-like fermions\, we chart out the corresponding landscape of Higgs stability. We find that the gauge portal mechanism\, triggered by new SM charge carriers\, opens up sizeable room for stability in a minimally invasive manner.\nWe also find models with Yukawa portals into Higgs stability opening up at stronger coupling. Several models allow for vector-like fermions in the TeV-range\, which can be searched for at the LHC. For nontrivial flavor structure of Yukawa couplings severe FCNC constraints arise which complement those from stability\, and push lower fermion masses up to O(10^3 TeV).\nhttps://indico.ijs.si/event/1523/
URL:https://web-f1.ijs.si/event/tim-hohne-tba/
LOCATION:Z9/0-0 – F1 čajnica (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221114T111500
DTEND;TZID=Europe/Ljubljana:20221114T121500
DTSTAMP:20260403T181313
CREATED:20221103T131945Z
LAST-MODIFIED:20221114T111555Z
UID:5509-1668424500-1668428100@web-f1.ijs.si
SUMMARY:Luiz Vale Silva: New physics in meson mixing
DESCRIPTION:The mixing of neutral mesons has been playing a key role in the formulation and testing of the Standard Model. It is also sensitive to some of the highest Beyond the Standard Model scales probed in laboratory experiments. In light of the planned LHCb Upgrades\, Belle~II and its possible upgrade\, and the broad interest in flavour physics in the tera-$Z$ phase of the proposed FCC-$e e$ program\, I discuss constraints on New Physics contributions to $B_d$ and $B_s$ mixing which can be obtained in these benchmark scenarios. Then\, I discuss the leading-order renormalization of double-insertions of dimension-6 four-fermion operators that change quark flavor by one unit (i.e.\, $ | Delta F | = 1 $\, $ F = $ strange-\, charm-\, or bottom-flavor)\, by dimension-8 operators relevant to meson mixing (i.e.\, $ | Delta F | = 2 $) in SMEFT\, setting then bounds on the Wilson coefficients of operators of dimension-6.\nhttps://indico.ijs.si/event/1556/
URL:https://web-f1.ijs.si/event/luiz-vale-silva-tba-2/
LOCATION:Z9/0-0 – F1 čajnica (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221110T140000
DTEND;TZID=Europe/Ljubljana:20221110T150000
DTSTAMP:20260403T181313
CREATED:20220929T071857Z
LAST-MODIFIED:20221103T075126Z
UID:5259-1668088800-1668092400@web-f1.ijs.si
SUMMARY:[Biophysics seminar] Maria Pedrosa Bustos: "Langmuir monolayers as membrane models to study anticancer drugs"
DESCRIPTION:When designing novel anticancer drugs\, it is crucial to analyze how they interact with cell membranes. For this purpose\, Langmuir monolayers have been widely used to mimic half of a cell membrane under controlled conditions. In this study\, healthy and tumor cell membranes are emulated using different mixtures of phospholipids and cholesterol. Their interaction with a model anticancer drug (curcumin) is analyzed experimentally by means of a Langmuir through. These studies are complemented by molecular dynamics simulations\, which offer additional molecular-level insight into the drug-monolayer interactions.\n\n\nThe meeting will take place in the tearoom of the F1 department.
URL:https://web-f1.ijs.si/event/biophysics-seminar-maria-pedrosa-bustos-langmuir-monolayers/
LOCATION:F1  tearoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221110T111500
DTEND;TZID=Europe/Ljubljana:20221110T121500
DTSTAMP:20260403T181313
CREATED:20221107T000051Z
LAST-MODIFIED:20221110T105625Z
UID:5613-1668078900-1668082500@web-f1.ijs.si
SUMMARY:Sašo Grozdanov: Journal club on "Noninvertible Global Symmetries in the Standard Model"
DESCRIPTION:Journal club presentation by Sašo Grozdanov on Y. Choi\, H. T. Lam\, S.-H. Shao\, Noninvertible Global Symmetries in the Standard Model\, Phys. Rev. Lett.\, 129\, 161601 (2022)\n \nhttps://indico.ijs.si/event/1558/
URL:https://web-f1.ijs.si/event/saso-grozdanov-journal-club-on-noninvertible-global-symmetries-in-the-standard-model/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221110T111500
DTEND;TZID=Europe/Ljubljana:20221110T121500
DTSTAMP:20260403T181313
CREATED:20221031T184632Z
LAST-MODIFIED:20221103T085112Z
UID:5433-1668078900-1668082500@web-f1.ijs.si
SUMMARY:Luiz Vale Silva: TBA
DESCRIPTION:https://indico.ijs.si/event/1554/
URL:https://web-f1.ijs.si/event/luiz-vale-silva-tba/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (F1 tea room)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221024T110000
DTEND;TZID=Europe/Ljubljana:20221024T120000
DTSTAMP:20260403T181313
CREATED:20220929T071739Z
LAST-MODIFIED:20221018T131815Z
UID:5257-1666609200-1666612800@web-f1.ijs.si
SUMMARY:[Biophysics journal club] Marin Šako: "Tensile strength of water"
DESCRIPTION:
URL:https://web-f1.ijs.si/event/biophysics-journal-club-marin-sako/
LOCATION:F1  tearoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221020T140000
DTEND;TZID=Europe/Ljubljana:20221020T150000
DTSTAMP:20260403T181313
CREATED:20220929T071609Z
LAST-MODIFIED:20221019T102504Z
UID:5255-1666274400-1666278000@web-f1.ijs.si
SUMMARY:[Biophysics seminar] Matej Kanduč: "Monolayer Adsorption Versus Bulk Micellization: Insights from Molecular Simulations"
DESCRIPTION:Adsorption of amphiphilic molecules to aqueous interfaces occurs in many technological and biological settings\, sometimes desired (stabilization of foams)\, while other times not (contamination). I will discuss how atomistic computer simulations can help us elucidate molecular mechanisms of surfactant adsorption\, ranging from short-chain alcohols to double-tail lipids. \nSmall surfactants form loose monolayers and exhibit rapid exchange between the interface and bulk\, which can be followed in the simulations. \nSurfactants with longer alkyl chains adsorb as denser monolayers and exchange on experimental timescales that are too slow to be captured in simulations\, which challenges molecular modeling. The modeling of this regime requires advanced computational techniques that connect interface and bulk phases via precise determinations of their chemical potentials. \nFinally\, double-chain surfactants (also called “lipids”) do not exchange between bulk and interface both on experimental and simulation timescales. They exist as bilayer aggregates already in solution and adsorb to surfaces in the form of monolayers only under certain conditions. As it turns out\, a universal determiner for adsorption is the wetting contact angle of the surface. Only surfaces with contact angles larger than around 60-70° are capable of forming lipid monolayers.
URL:https://web-f1.ijs.si/event/biophysics-seminar-matej-kanduc-monolayer-adsorption-vs-bulk-micellization/
LOCATION:Seminar room of physics (106)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221017T140000
DTEND;TZID=Europe/Ljubljana:20221017T150000
DTSTAMP:20260403T181313
CREATED:20221010T100047Z
LAST-MODIFIED:20221010T100047Z
UID:5284-1666015200-1666018800@web-f1.ijs.si
SUMMARY:[Biophysics seminar] Jordi Faraudo: "Molecular Dynamics simulations and the SARS-CoV-2 virus"
DESCRIPTION:I will expain our efforts in atomistic and coarse-grain simulations to provide useful information about SARS-CoV-2 and its interactions with materials and disinfecting chemicals.\n\n\nThe meeting will take place online via Zoom: \nMeeting ID: 833 0750 1179 \nPasscode: bio
URL:https://web-f1.ijs.si/event/biophysics-seminar-jordi-faraudo-molecular-dynamics-simulations-and-the-sars-cov-2-virus/
LOCATION:Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221013T140000
DTEND;TZID=Europe/Ljubljana:20221013T150000
DTSTAMP:20260403T181313
CREATED:20220906T085742Z
LAST-MODIFIED:20221004T145520Z
UID:5217-1665669600-1665673200@web-f1.ijs.si
SUMMARY:[Biophysics seminar] Fabio Staniscia: "Adsorption at a curved interface"
DESCRIPTION:We study the effect of curvature of the interface on the adsorption properties of water droplets. Using a computational approach we show a decrease in the adsorption strength with the droplet curvature\, which is accompanied by a decrease of surface tension. We investigate theoretically the causes and implications of this phenomenon.\n\n\nThe meeting will take place in the seminar room of physics (106).
URL:https://web-f1.ijs.si/event/biophysics-seminar-fabio-staniscia-tuning-contact-angles-ptii/
LOCATION:Seminar room of physics (106)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20221006T110000
DTEND;TZID=Europe/Ljubljana:20221006T120000
DTSTAMP:20260403T181313
CREATED:20221005T090118Z
LAST-MODIFIED:20221005T090118Z
UID:5280-1665054000-1665057600@web-f1.ijs.si
SUMMARY:[Biophysics seminar] Horacio Guzman: "RNA-substrate interactions"
DESCRIPTION:The meeting will take place online via Zoom: \nMeeting ID: 833 0750 1179 \nPasscode: bio
URL:https://web-f1.ijs.si/event/biophysics-seminar-horacio-guzman-rna-substrate-interactions/
LOCATION:Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220818T150000
DTEND;TZID=Europe/Ljubljana:20220818T160000
DTSTAMP:20260403T181313
CREATED:20220817T135710Z
LAST-MODIFIED:20220817T135710Z
UID:5210-1660834800-1660838400@web-f1.ijs.si
SUMMARY:[Biophysics seminar] María Pedrosa Bustos: "Biophysics approach in anticancer therapies: Studying anticancer drug interactions with extracted and model cell membranes by Langmuir films and computer simulations"
DESCRIPTION:María Pedrosa Bustos\, a visiting PhD student from the Biocoloids and Fluid Physics Group of the University of Granada\, will give a talk on “Biophysics approach in anticancer therapies: Studying anticancer drug interactions with extracted and model cell membranes by Langmuir films and computer simulations” in preparation for her talk at the next week’s regional biophysics conference.
URL:https://web-f1.ijs.si/event/biophysics-seminar-maria-pedrosa-bustos-biophysics-approach-in-anticancer-therapies-studying-anticancer-drug-interactions-with-extracted-and-model-cell-membranes-by-langmuir-films-and-computer-s/
LOCATION:F1  tearoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220719T123000
DTEND;TZID=Europe/Ljubljana:20220719T133000
DTSTAMP:20260403T181313
CREATED:20220630T073605Z
LAST-MODIFIED:20220704T154012Z
UID:5176-1658233800-1658237400@web-f1.ijs.si
SUMMARY:[Biophysics seminar] Haim Taitelbaum: "Spreading of Metal on Metal-on-glass at Room Temperature"
DESCRIPTION:We study the spreading of mercury droplets on thin metal (silver or gold) films on glass at room temperature\, which is the only known system of reactive-wetting at room temperature. We show that there exist two main regimes\, the bulk propagation regime and the interface kinetic roughening regime. In both regimes\, rich spatio-temporal patterns are observed. We characterize these patterns using statistical physics tools\, such as the growth\, roughness  and persistence exponents\, and show some recent exotic DLA-like patterns obtained in experiments.\n\n\n\nThe meeting will take place in the tea room of the F1 department.
URL:https://web-f1.ijs.si/event/biophysics-seminar-haim-taitelbaum-spreading-metal-room-temperature/
LOCATION:F1  tearoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220707T110000
DTEND;TZID=Europe/Ljubljana:20220707T120000
DTSTAMP:20260403T181313
CREATED:20220414T084239Z
LAST-MODIFIED:20220414T101238Z
UID:5100-1657191600-1657195200@web-f1.ijs.si
SUMMARY:Philipp Schicho: Gauge-invariant bubble nucleation rate in finite temperature effective field theory
DESCRIPTION:A gauge-invariant framework for computing bubble nucleation rates at finite temperature in the presence of radiative barriers was presented and advocated for model-building and phenomenological studies in an accompanying article arXiv:2112.05472. Here\, we detail this computation using the Abelian Higgs Model as an illustrative example. Subsequently\, we recast this approach in the dimensionally-reduced high-temperature effective field theory for nucleation. This allows one to include several higher order thermal resummations and furthermore delineate clearly the approach’s limits of validity. This approach provides for robust perturbative treatments of bubble nucleation during possible first order cosmic phase transitions\, with implications for electroweak baryogenesis and production of a stochastic gravitational wave background. Furthermore\, it yields a sound comparison between results of perturbative and non-perturbative computations.\nhttps://indico.ijs.si/event/1443/
URL:https://web-f1.ijs.si/event/philipp-schicho-gauge-invariant-bubble-nucleation-rate-in-finite-temperature-effective-field-theory/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220630T100000
DTEND;TZID=Europe/Ljubljana:20220630T160000
DTSTAMP:20260403T181313
CREATED:20220414T084238Z
LAST-MODIFIED:20220414T101238Z
UID:5099-1656583200-1656604800@web-f1.ijs.si
SUMMARY:5th Trilateral meeting (tentative) at ICTP/IFPU
DESCRIPTION:The trilateral meetings are a series of one day events designed to strengthen the scientific relations in particle\, astroparticle physics and cosmology between Trieste\, Nova Gorica and Ljubljana.\nThe venue will be posted soon.\nOrganizing committee:\n	Miha Nemevšek (IJS)\n	Andrea Romanino (SISSA)\n	Lorenzo Ubaldi (INFN)\n	Gabrijela Zaharijas (UNG)\nPast meetings\n	Ljubljana meeting\, 16 December 2021 at IJS\n	Nova Gorica meeting\, 15 September 2021 at Vipava\n	Trieste meeting\, 5 February 2020 at IFPU\n	Ljubljana meeting\, 17 October 2019 at IJS\n \nhttps://indico.ijs.si/event/1419/
URL:https://web-f1.ijs.si/event/5th-trilateral-meeting-tentative-at-ictp-ifpu/
LOCATION:TBD (ICTP/IFPU)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220623T110000
DTEND;TZID=Europe/Ljubljana:20220623T120000
DTSTAMP:20260403T181313
CREATED:20220414T084238Z
LAST-MODIFIED:20220414T101237Z
UID:5097-1655982000-1655985600@web-f1.ijs.si
SUMMARY:Barry Dillon: What's Anomalous in LHC Jets?
DESCRIPTION:Searches for anomalies are the main motivation for the LHC and define key analysis steps\, including triggers. We discuss how LHC anomalies can be defined through probability density estimates\, evaluated in a physics space or in an appropriate neural network latent space. We illustrate this for classical k-means clustering\, a Dirichlet variational autoencoder\, and invertible neural networks. For two especially challenging scenarios of jets from a dark sector we evaluate the strengths and limitations of each method.\nhttps://indico.ijs.si/event/1425/
URL:https://web-f1.ijs.si/event/barry-dillon-whats-anomalous-in-lhc-jets/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220609T110000
DTEND;TZID=Europe/Ljubljana:20220609T120000
DTSTAMP:20260403T181313
CREATED:20220414T084236Z
LAST-MODIFIED:20220414T101236Z
UID:5095-1654772400-1654776000@web-f1.ijs.si
SUMMARY:Joe Davighi: TBA
DESCRIPTION:https://indico.ijs.si/event/1429/
URL:https://web-f1.ijs.si/event/joe-davighi-tba/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220602T110000
DTEND;TZID=Europe/Ljubljana:20220602T120000
DTSTAMP:20260403T181313
CREATED:20220414T084236Z
LAST-MODIFIED:20220414T101236Z
UID:5094-1654167600-1654171200@web-f1.ijs.si
SUMMARY:Francesco D'Eramo: TBA
DESCRIPTION:https://indico.ijs.si/event/1423/
URL:https://web-f1.ijs.si/event/francesco-deramo-tba/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220526T110000
DTEND;TZID=Europe/Ljubljana:20220526T120000
DTSTAMP:20260403T181313
CREATED:20220414T084235Z
LAST-MODIFIED:20220414T101236Z
UID:5093-1653562800-1653566400@web-f1.ijs.si
SUMMARY:Svjetlana Fajfer: Triple-leptoquark interactions for tree- and loop-level proton decays
DESCRIPTION:We study the impact of triple-leptoquark interactions on matter stability for two specific proton decay topologies that arise at the tree- and one-loop level. We demonstrate that the one-loop level topology is much more relevant than the tree-level one when it comes to the proton decay signatures despite the usual loop-suppression factor. Since the two proton decay topologies necessarily coexist\, our study renders any phenomenological limits inferred from the tree-level topology redundant for all practical purposes. We subsequently present detailed analysis of the triple-leptoquark interaction effects on the proton stability within one representative scenario to support our claim\, where the scenario in question simultaneously features a tree-level topology that yields three-body proton decay p→e+e+e− and a one-loop level topology that induces two-body proton decays p→π0e+ and p→π+ν¯. We also provide a comprehensive classification of all non-trivial cubic and quartic contractions involving three scalar leptoquark multiplets that generate triple-leptoquark interactions of our interest\, where in the latter case one of the scalar multiplets is the Standard Model Higgs doublet.\nhttps://indico.ijs.si/event/1417/
URL:https://web-f1.ijs.si/event/svjetlana-fajfer-triple-leptoquark-interactions-for-tree-and-loop-level-proton-decays/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220519T110000
DTEND;TZID=Europe/Ljubljana:20220519T120000
DTSTAMP:20260403T181313
CREATED:20220414T084234Z
LAST-MODIFIED:20220414T101235Z
UID:5092-1652958000-1652961600@web-f1.ijs.si
SUMMARY:Miguel Vanvlasselaer: Dark Matter production from relativistic bubble walls
DESCRIPTION:In this paper we present a novel mechanism for producing the observed Dark Matter (DM) relic abundance during the First Order Phase Transition (FOPT) in the early universe. We show that the bubble expansion with ultra-relativistic velocities can lead to the abundance of DM particles with masses much larger than the scale of the transition. We study this non-thermal production mechanism in the context of a generic phase transition and the electroweak phase transition. The application of the mechanism to the Higgs portal DM as well as the signal in the Stochastic Gravitational Background are discussed.\nhttps://indico.ijs.si/event/1421/
URL:https://web-f1.ijs.si/event/miguel-vanvlasselaer-dark-matter-production-from-relativistic-bubble-walls/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220512T110000
DTEND;TZID=Europe/Ljubljana:20220512T120000
DTSTAMP:20260403T181313
CREATED:20220414T084234Z
LAST-MODIFIED:20220414T101235Z
UID:5091-1652353200-1652356800@web-f1.ijs.si
SUMMARY:Saša Prelovšek: Evidence for a doubly charm tetraquark pole from lattice QCD
DESCRIPTION: Recently LHCb collaboration discovered a doubly charmed tetraquark (Tcc) with exotic flavor content ccud slightly below DD* threshold. I’ll present the first lattice QCD determination of DD* scattering amplitude which is needed to theoretically establish Tcc. The resulting scattering amplitude provides a signature for a pole related to Tcc for the first time with ab-initio methods. \nhttps://indico.ijs.si/event/1424/
URL:https://web-f1.ijs.si/event/sasa-prelovsek-evidence-for-a-doubly-charm-tetraquark-pole-from-lattice-qcd/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220510T130000
DTEND;TZID=Europe/Ljubljana:20220510T140000
DTSTAMP:20260403T181313
CREATED:20220325T141719Z
LAST-MODIFIED:20220506T073630Z
UID:5076-1652187600-1652191200@web-f1.ijs.si
SUMMARY:[Biophysics seminar] Robert Vácha: "How Non-Enveloped Viruses Can Infect Cells"
DESCRIPTION:Non-enveloped RNA viruses are composed of a genome protected by a protein shell called a capsid. At the beginning of infection\, these viruses get inside the cell and release their genome from the capsid\, so the genome can start to be replicated\, leading to the production of new copies of the virus. We developed a phenomenological model of an icosahedral virus capsid with a genome and used it to investigate how the virus can get inside the cell. We have shown that virus or virus-like nanoparticles with the right properties can enter the cell spontaneously\, i.e.\, without ATP. Moreover\, we demonstrated that the subsequent release of genome/cargo could occur via a rapid or slow pathway\, which is mainly determined by the interaction range between capsid subunits. These findings could aid in the development of anti-viral drugs or assist in the design of virus-like nanoparticles for drug delivery.\n\n\nThe meeting will take place online via Zoom: \nMeeting ID: 833 0750 1179 \nPasscode: bio
URL:https://web-f1.ijs.si/event/biophysics-seminar-robert-vacha-viruses-cell-infection/
LOCATION:Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220505T160000
DTEND;TZID=Europe/Ljubljana:20220505T170000
DTSTAMP:20260403T181313
CREATED:20220414T084233Z
LAST-MODIFIED:20220414T101234Z
UID:5090-1651766400-1651770000@web-f1.ijs.si
SUMMARY:Kaladi Babu: TBA
DESCRIPTION:https://indico.ijs.si/event/1422/
URL:https://web-f1.ijs.si/event/kaladi-babu-tba/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220503T130000
DTEND;TZID=Europe/Ljubljana:20220503T140000
DTSTAMP:20260403T181313
CREATED:20220111T115947Z
LAST-MODIFIED:20220111T115947Z
UID:5001-1651582800-1651586400@web-f1.ijs.si
SUMMARY:[Biophysics seminar] Veronika Bukina (TBA)
DESCRIPTION:
URL:https://web-f1.ijs.si/event/biophysics-seminar-veronika-bukina-tba/
LOCATION:Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220414T110000
DTEND;TZID=Europe/Ljubljana:20220414T120000
DTSTAMP:20260403T181313
CREATED:20220414T084233Z
LAST-MODIFIED:20220414T101234Z
UID:5089-1649934000-1649937600@web-f1.ijs.si
SUMMARY:Nejc Košnik: LFU and CP violation with S3
DESCRIPTION:We introduce the CP violating scalar leptoquark S3 to explain the measured values of the lepton universality ratios RK(∗). We derive constraints on the CP-even and CP-odd components of the leptoquark Yukawa couplings stemming from effects in b → sμμ and Bs mixing. For the b → sμμ processes we impose RK(∗)\, B(Bs → μ+μ−)\, as well as CP-sensitive angular asymmetries A7\,8\,9\, whereas in the Bs mixing sector ∆Ms and Sψφ are considered. Combining the constraints within the S3 model reveals that a large CP phase with a definite sign is perfectly viable for a leptoquark of mass below a few TeV. For larger mass of the S3 leptoquark the CP phase is suppressed due to the observables pertaining to the Bs system. We provide predictions of direct and mixing-induced CP asymmetries in B → Kμμ that could reveal the presence of the novel CP phase.\nhttps://indico.ijs.si/event/1420/
URL:https://web-f1.ijs.si/event/nejc-kosnik-lfu-and-cp-violation-with-s3/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20220329T130000
DTEND;TZID=Europe/Ljubljana:20220329T140000
DTSTAMP:20260403T181313
CREATED:20220316T090207Z
LAST-MODIFIED:20220318T110115Z
UID:5061-1648558800-1648562400@web-f1.ijs.si
SUMMARY:[Biophysics seminar] Aljaž Godec: "From the kinetic Ising model to specific cell adhesion\, and back"
DESCRIPTION:By exploiting a mapping onto a kinetic Ising-like model we will illuminate the many-body effects underlying the structure\, formation\, and dissolution of cellular adhesion domains in the presence and absence of external forces. We will present analytical results on the pair-correlation level for the complete thermodynamics and kinetics of adhesion clusters of any size\, including the thermodynamic limit. A new kind of dynamical phase transition will be demonstrated: the mean formation and dissolution times per adhesion bond change discontinuously with respect to the bond-coupling parameter that in turn is controlled by the membrane rigidity. At the dynamical critical point\, adhesion cluster formation and dissolution are the fastest\, while the statistically dominant transition path undergoes a qualitative change. In the context of the classical Ising model the dynamical phase transition reflects a first order discontinuity in the magnetization-reversal time. Will will conclude by briefly discussing the relevance of these results for the mechanical regulation of cell adhesion\, and argue that it is biologically favorable if cell adhesion is poised at criticality.  \n[1] K. Blom & A. Godec\, Phys. Rev. X 11\, 031067 (2021).\n\n\nThe meeting will take place online via Zoom: \nMeeting ID: 833 0750 1179 \nPasscode: bio
URL:https://web-f1.ijs.si/event/biophysics-seminar-aljaz-godec-kinetic-ising-cell-adhesion/
LOCATION:Zoom
END:VEVENT
END:VCALENDAR