BEGIN:VCALENDAR VERSION:2.0 PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN BEGIN:VEVENT SUMMARY:Particle Physics Seminars I DTSTART:20230125T160000Z DTEND:20230125T190000Z DTSTAMP:20260623T225632Z UID:37797a1c-f514-470f-9a3d-71ce28d7033d SEQUENCE:6 CREATED:20221223T115238Z DESCRIPTION:Speaker: Liliana ApolinárioTitle: Unveiling the time structur e of QCD jetsAbstract: Heavy-ion collisions are a unique laboratory to rec reate the high energy and density conditions prevalent during the primordi al moments of our Universe: the Quark-Gluon Plasma (QGP). This new state o f matter is made of the elementary building blocks (quarks and gluons) of Quantum Chromodynamics (QCD)\, a key ingredient of the Particle Physics St andard Model. Unveiling the characteristics of the QGP allows us to ascert ain the QCD'\;s fundamental properties. This goal can be achieved in h adronic collisions through jets: spray of particles that result from the f ragmentation of high-energy quarks and gluons produced concurrently with t he collision. The fact that jets in proton-proton collisions are well unde rstood has allowed us to successfully use them to extract the QGP'\;s time-averaged properties. However\, jets are evolving multi-scale objects that witness the entire space-time evolution of the system\, making them u nique tools for analysing the strong time dependence of the QGP properties . In this talk\, I will present the most recent breakthroughs that unlocke d time-differential methods for a full time-scan of the QGP at current col liders'\; energies.Speaker: Nuno LeonardoTitle: The LHC at the intensi ty frontierAbstract: The LHC is our most powerful tool to probe nature at the smallest scales and most fundamental level. The strategy is to accumul ate large datasets at high energies to search for tiny signals. One such s ignal was revealed a decade ago\, and resulted in the experimental confirm ation of the last standard model particle. While no new particles beyond t he standard model have been established so far\, there is tantalising evid ence of their presence in the data. Namely\, a persistent and significant pattern of deviations from the theory predictions has been revealed\, the so-called flavour anomalies. I’ll present the exploration of rare signal s around the flavour sector that we’ll continue to pursue at the LHC and beyond. Such exploration encompasses direct and indirect searches for new physics\, with both general-purpose and dedicated detectors. In this cont ext\, I’ll also introduce the most recent CERN experiment\, that we have just installed at the LHC\, with the goal of observing collider neutrinos for the first time\, and probing the anomalies in lepton universality. Th e broader goal is that of exploring the unmatched physics potential of the LHC to the fullest extent and into the intensity frontier we are now ente ring.Speaker: João PenedoTitle: Piecing together the Flavour puzzleAbstra ct: Despite its repeated successes\, the Standard Model is not the last wo rd in our understanding of the subatomic world. The peculiarities that set neutrinos apart from other particles hint at Neutrino Physics as the most promising gateway to Physics Beyond the Standard Model (BSM). In an era o f precision\, neutrino masses and mixing are fundamental pieces in the bro ader puzzle of Flavour.  From the theoretical and phenomenological viewpo int\, one strives to find unified and testable descriptions of the known f lavour patterns which address fundamental problems in Particle Physics -- e.g. the smallness and nature of neutrino masses\, the nature of dark matt er\, the sources of matter-antimatter asymmetry and its absence in strong interactions. Such new Physics may justify tantalising anomalies in the da ta. The unprecedented sensitivities of upcoming experiments (e.g. DUNE\, B elle and SHiP) will allow us to scrutinise these BSM scenarios and persist ent deviations within the next decade.Speaker: Andreas TrautnerTitle: The Standard Model flavor puzzle and perspectives of a resolutionAbstract: Wit h decades worth of data from high precision flavor experiments and robust confirmation at the LHC\, addressing the Standard Model flavor puzzle is m ore pressing than ever. I will briefly\, pedagogically introduce the puzzl e then discuss my way to approach its resolution. This involves new mathem atical techniques\, for example\, to understand the violation of matter-an timatter symmetry\, as well as new model building extensions (including mu lti-Higgs models) to scrutinize experimental anomalies and the elementary structure of quarks\, charged leptons and neutrinos. Most importantly\, th e dynamics of the flavor structure needs to be understood in order to redu ce the number of necessary input parameters. This gives way to testable pr edictions not only at the LHC and future colliders but potentially also in the cosmological background radiation and high energy cosmic rays. Since all of this could be embedded in UV complete frameworks such as string the ory\, a correct model should reveal groundbreaking connections also to oth er important puzzles of modern particle physics such as the origin of neut rino masses\, dark matter\, or the unification of gauge interactions. LAST-MODIFIED:20221223T120106Z LOCATION:QA1.1\, south tower URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/particle-physics-seminars/ X-ALT-DESC;FMTTYPE=text/html:

Speaker: Lil iana Apolinário

Title: Unveiling the time structure of QCD jets

Abstract: H eavy-ion collisions are a unique laboratory to recreate the high energy an d density conditions prevalent during the primordial moments of our Univer se: the Quark-Gluon Plasma (QGP). This new state of matter is made of the elementary building blocks (quarks and gluons) of Quantum Chromodynamics ( QCD)\, a key ingredient of the Particle Physics Standard Model. Unveiling the characteristics of the QGP allows us to ascertain the QCD'\;s fund amental properties. This goal can be achieved in hadronic collisions throu gh jets: spray of particles that result from the fragmentation of high-ene rgy quarks and gluons produced concurrently with the collision. The fact t hat jets in proton-proton collisions are well understood has allowed us to successfully use them to extract the QGP'\;s time-averaged properties . However\, jets are evolving multi-scale objects that witness the entire space-time evolution of the system\, making them unique tools for analysin g the strong time dependence of the QGP properties. In this talk\, I will present the most recent breakthroughs that unlocked time-differential meth ods for a full time-scan of the QGP at current colliders'\; energies.< /p>

Speaker: Nuno Leonardo

Title: The LHC at the i ntensity frontier

Abstract: The LHC is our most powerful tool to probe nature at the smallest scales and most fu ndamental level. The strategy is to accumulate large datasets at high ener gies to search for tiny signals. One such signal was revealed a decade ago \, and resulted in the experimental confirmation of the last standard mode l particle. While no new particles beyond the standard model have been est ablished so far\, there is tantalising evidence of their presence in the d ata. Namely\, a persistent and significant pattern of deviations from the theory predictions has been revealed\, the so-called flavour anomalies. I ’ll present the exploration of rare signals around the flavour sector th at we’ll continue to pursue at the LHC and beyond. Such exploration enco mpasses direct and indirect searches for new physics\, with both general-p urpose and dedicated detectors. In this context\, I’ll also introduce th e most recent CERN experiment\, that we have just installed at the LHC\, w ith the goal of observing collider neutrinos for the first time\, and prob ing the anomalies in lepton universality. The broader goal is that of expl oring the unmatched physics potential of the LHC to the fullest extent and into the intensity frontier we are now entering.

Speaker: João Penedo

Title: Piecing together the Flavour puzzle

Abstract: Despite its repeated successes\, the Standard Model is not the last word in our understanding of the subato mic world. The peculiarities that set neutrinos apart from other particles hint at Neutrino Physics as the most promising gateway to Physics Beyond the Standard Model (BSM). In an era of precision\, neutrino masses and mix ing are fundamental pieces in the broader puzzle of Flavour.  From the th eoretical and phenomenological viewpoint\, one strives to find unified and testable descriptions of the known flavour patterns which address fundame ntal problems in Particle Physics -- e.g. the smallness and nature of neut rino masses\, the nature of dark matter\, the sources of matter-antimatter asymmetry and its absence in strong interactions. Such new Physics may ju stify tantalising anomalies in the data. The unprecedented sensitivities o f upcoming experiments (e.g. DUNE\, Belle and SHiP) will allow us to scrut inise these BSM scenarios and persistent deviations within the next decade .

Speaker: Andreas Trautner

Title: The Standar d Model flavor puzzle and perspectives of a resolution

Abstract: With decades worth of data from high precision flavor experiments and robust confirmation at the LHC\, addressing the Sta ndard Model flavor puzzle is more pressing than ever. I will briefly\, ped agogically introduce the puzzle then discuss my way to approach its resolu tion. This involves new mathematical techniques\, for example\, to underst and the violation of matter-antimatter symmetry\, as well as new model bui lding extensions (including multi-Higgs models) to scrutinize experimental anomalies and the elementary structure of quarks\, charged leptons and ne utrinos. Most importantly\, the dynamics of the flavor structure needs to be understood in order to reduce the number of necessary input parameters. This gives way to testable predictions not only at the LHC and future col liders but potentially also in the cosmological background radiation and h igh energy cosmic rays. Since all of this could be embedded in UV complete frameworks such as string theory\, a correct model should reveal groundbr eaking connections also to other important puzzles of modern particle phys ics such as the origin of neutrino masses\, dark matter\, or the unificati on of gauge interactions.

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