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X-WR-CALDESC:Eventi per INFN-LNF
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TZID:Europe/Rome
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DTSTART:20260329T010000
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DTSTART:20261025T010000
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DTSTART;TZID=Europe/Rome:20260427T110000
DTEND;TZID=Europe/Rome:20260427T123000
DTSTAMP:20260503T104227
CREATED:20260401T071017Z
LAST-MODIFIED:20260401T071030Z
UID:40636-1777287600-1777293000@w3.lnf.infn.it
SUMMARY:Aspects of twist-2 superfield operators in N=1 SYM theory
DESCRIPTION:Speaker: Giacomo Santoni (Istituto Nazionale di Fisica Nucleare) \nTwist-2 operators are fundamental for the study of deep inelastic scattering in QCD because they dominate the operator product expansions on the light-cone. Recently\, it was discovered that the Euclidean UV-asymptotic generating functional of the connected correlators of twist-2 operators provides highly nontrivial constraints on the yetto-come nonperturbative solution of large-N SU(N) YM theory. We extend these results to N=1 supersymmetric Yang-Mills (SYM) theory by providing a new construction of twist-2 operators in terms of covariant superfields. This construction is manifestly gauge-invariant and SUSY-covariant and makes their one-loop renormalization and mixing properties considerably transparent. We compute their asymptotic renormalization-group improved generating functional in Euclidean superspace and its planar and leading nonplanar large-N expansion. We verify that the leading nonplanar asymptotic renormalization-group improved generating functional matches the structure of logarithm of a functional superdeterminant of the corresponding nonperturbative object arising from the glueball/gluinoball effective action\, which it should be asymptotic to at short distances because of the asymptotic freedom.
URL:/event/aspects-of-twist-2-superfield-operators-in-n1-sym-theory/
LOCATION:Aula A-1\, Via Enrico Fermi\, 40\, Frascati\, Roma\, 00044\, Italia
CATEGORIES:Seminari teorici
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DTSTART;TZID=Europe/Rome:20260507T143000
DTEND;TZID=Europe/Rome:20260507T160000
DTSTAMP:20260503T104227
CREATED:20260403T084853Z
LAST-MODIFIED:20260403T084853Z
UID:40652-1778164200-1778169600@w3.lnf.infn.it
SUMMARY:VOXES: a LNF Facility for High-Resolution XRF Measurements
DESCRIPTION:Speaker: Simone Manti (Istituto Nazionale di Fisica Nucleare) \nVOXES is a high-resolution X-ray spectrometer developed at the INFN Laboratori Nazionali di Frascati for X-ray spectroscopy measurements in the 5 to 50 keV energy range\, with applications to both X-ray fluorescence and absorption studies. \nBased on the Von Hamos geometry\, the setup is designed to provide a few-eV energy resolution (FWHM)\, depending on the adopted crystal\, detector\, and measurement conditions. \nOne of the distinctive features of VOXES is its capability to perform high-resolution measurements also on extended sources\, enabled by the combined use of crystal dispersion and slit-based source shaping. \nIn this talk\, after introducing the main characteristics of the spectrometer\, I will show how these features make VOXES a flexible platform for a broad range of applications. The setup includes mosaic and germanium crystals\, strip\, CCD\, and pixel detectors\, and X-ray tubes with Mo and W anodes operating up to 80 kV and currents of the order of mA. The system is installed in a dedicated shielded bunker\, suitable for experimental integration and further developments. The spectrometer is fully motorized for alignment procedures and complemented by auxiliary diagnostics\, including a pin diode for monitoring\, ensuring operational flexibility and reproducibility. \nOn this basis\, I will discuss selected application areas that illustrate the scientific and technological relevance of VOXES for LNF activities. These include measurements on liquid samples for edible-liquid analysis within the MITIQO project\, measurements on perovskite detectors\, imaging with the GEM detector\, and ongoing activities in collaboration with ENEA on battery-related materials. \nPossible future developments will also be outlined in connection with EuPRAXIA and EuAPS\, where compact high-resolution X-ray spectroscopy may provide useful support for diagnostics and materials characterization. In this perspective\, VOXES represents an experimental infrastructure with the potential to contribute to the strengthening of laboratory capabilities and to support interdisciplinary activities within LNF and beyond.
URL:/event/voxes-a-lnf-facility-for-high-resolution-xrf-measurements/
LOCATION:Aula Salvini
CATEGORIES:Seminari generali
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BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20260511T090000
DTEND;TZID=Europe/Rome:20260515T190000
DTSTAMP:20260503T104227
CREATED:20260407T160700Z
LAST-MODIFIED:20260407T160710Z
UID:40658-1778490000-1778871600@w3.lnf.infn.it
SUMMARY:XXII LNF SPRING SCHOOL "BRUNO TOUSCHEK" in Nuclear\, Subnuclear and Astroparticle Physics
DESCRIPTION:The XXII LNF Spring School “Bruno Touschek” in Nuclear\, Subnuclear and Astroparticle Physics will take place at the INFN\, Laboratori Nazionali di Frascati\, Italy from Monday\, May 11th to Friday\, May 15th\, 2026. \nThe School is addressed to graduate students and young post-doctoral fellows in theoretical and experimental high-energy\, nuclear and astroparticle physics. The 2026 edition of the School includes lectures on selected theoretical and experimental topics\, discussion sessions\, a colloquium and the 9th Young Researchers’ Workshop on “Challenges in high-energy\, nuclear and astroparticle physics”\, scheduled on Monday\, May 11th and on Wednesday\, May 13th. Students and postdocs planning to participate in the School are strongly encouraged to apply to give a presentation of their research in the workshop\, by sending an email to the school chair\, with the proposed talk title. The contributions will be published in Frascati Physics Series. The registration fee is 150 euros and covers lunches at the LNF canteen\, coffee breaks\, social dinner and excursion. Some funding covering the registration fee is available for participants giving talks in the Young Researchers’ Workshop.
URL:/event/xxii-lnf-spring-school-bruno-touschek-in-nuclear-subnuclear-and-astroparticle-physics/
LOCATION:Aula Salvini
CATEGORIES:Conferenze & Workshops
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