181. Update on the offline framework for AugerPrime and production of reference simulation libraries using the VO Auger grid resourcesEva Santos, Andrej Filipčič, Jon Paul Lundquist, Shima Ujjani Shivashankara, Samo Stanič, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, 2023, published scientific conference contribution Abstract: Taking data stably since 2004, the Pierre Auger Observatory has published numerous results regarding the properties of ultra-high-energy cosmic rays with unprecedented statistics. However, questions about their origin and mass composition remain unanswered, motivating us to build AugerPrime, a major upgrade of our surface detector array with improved electronics and new detectors. The upgrade is swiftly approaching its completion. Phase II of the Pierre Auger Observatory has begun, which called for an update of the Offline software Framework and modules to handle the additional detectors and the new electronics. Thanks to its modular structure, Offline has proved flexible enough to accommodate all the changes required to handle AugerPrime data reconstruction and event simulation. Additionally, new reference libraries of shower and detector simulations, including dedicated libraries envisaging the searches for neutral particles, such as ultra-high-energy photons and neutrinos, profiting from the new AugerPrime detectors with the upgraded electronics, are in the pipeline. In this contribution, we report on the current status and
prospects for the Auger Off line Framework and the production of reference Monte Carlo libraries for AugerPrime.
Keywords: AugerPrime, Pierre Auger Observatory, cosmic rays, surface detectors
Published in RUNG: 16.01.2024; Views: 440; Downloads: 7
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182. Uncovering the nature of transient and metastable nonequilibrium phases in 1T − ▫$TaS_2$ ▫Tanusree Saha, Arindam Pramanik, Barbara Ressel, Alessandra Ciavardini, Fabio Frassetto, Federico Galdenzi, Luca Poletto, Arun Ravindran, Primož Rebernik Ribič, Giovanni De Ninno, 2023, original scientific article Abstract: Complex systems are characterized by strong coupling between different microscopic degrees of freedom. Photoexcitation of such materials can drive them into new transient and metastable hidden phases that may not have any counterparts in equilibrium. By exploiting femtosecond time- and angle-resolved photoemission spectroscopy, we probe the photoinduced transient phase and the recovery dynamics of the ground state in a complex material: the charge density wave (CDW)–Mott insulator 1T-TaS2. We reveal striking similarities between the band structures of the transient phase and the (equilibrium) structurally undistorted metallic phase, with evidence for the coexistence of the low-temperature Mott insulating phase and high-temperature metallic phase. Following the transient phase, we find that the restorations of the Mott and CDW orders begin around the same time. This highlights that the Mott transition is tied to the CDW structural distortion, although earlier studies have shown that the collapses of Mott and CDW phases are decoupled from each other. Interestingly, as the suppressed order starts to recover, a metastable phase emerges before the material recovers to the ground state. Our results demonstrate that it is the CDW lattice order that drives the material into this metastable phase, which is indeed a commensurate CDW–Mott insulating phase but with a smaller CDW amplitude. Moreover, we find that the metastable phase emerges only under strong photoexcitation (∼3.6 mJ/cm2) and has no evidence when the photoexcitation strength is weak (∼1.2 mJ/cm2).
Keywords: angle resolved photoemission, time resolved photoemission, 2D materials, charge density wave, Mott insulator
Published in RUNG: 15.01.2024; Views: 503; Downloads: 4
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184. The radio to GeV afterglow of GRB 221009ATanmoy Laskar, Kate D. Alexander, Raffaella Margutti, Tarraneh Eftekhari, Ryan Chornock, Edo Berger, Yvette Cendes, Anne Duerr, Daniel A. Perley, Andreja Gomboc, 2023, original scientific article Keywords: astronomija, izbruhi sevanja gama, astronomska opazovanja
Published in RUNG: 15.01.2024; Views: 471; Downloads: 6
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185. The role of the magnetic fields in GRB outflowsN. Jordana-Mitjans, Carole G. Mundell, S. Kobayashi, R. J. Smith, Cristiano Guidorzi, Iain A. Steele, M. Shrestha, Andreja Gomboc, M. Marongiu, R. Martone, 2023, published scientific conference contribution Keywords: astronomija, izbruhi sevanja gama, magnetno polje
Published in RUNG: 15.01.2024; Views: 506; Downloads: 6
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186. MAGIC detection of GRB 201216C at z = 1.1H. Abe, S. Abe, V. A. Acciari, I. Agudo, T. Aniello, S. Ansoldi, L. A. Antonelli, A. Arbet Engels, C. Arcaro, Andreja Gomboc, 2023, original scientific article Keywords: astronomija, izbruhi sevanja gama, MAGIC teleskop
Published in RUNG: 15.01.2024; Views: 413; Downloads: 6
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188. The third Fermi Large Area Telescope catalog of gamma-ray pulsarsD. A. Smith, S. Abdollahi, M. Ajello, M. Bailes, L. Baldini, J. Ballet, M. G. Baring, C. Bassa, J. Becerra Gonzalez, R. Bellazzini, Gabrijela Zaharijas, 2023, original scientific article Keywords: gamma ray astrophysics, catalogues, pulsars
Published in RUNG: 15.01.2024; Views: 482; Downloads: 6
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189. Fermi-GBM discovery of GRB 221009A : an extraordinarily bright GRB from onset to afterglowS. Lesage, P. Veres, M. S. Briggs, A. Goldstein, D. Kocevski, E. Burns, C. A. Wilson-Hodge, P. N. Bhat, D. Huppenkothen, Gabrijela Zaharijas, 2023, original scientific article Keywords: gamma-ray bursts, GRB 221009A, cosmic ray astronomy
Published in RUNG: 15.01.2024; Views: 460; Downloads: 4
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190. Mind the gap : the discrepancy between simulation and reality drives interpretations of the Galactic Center ExcessSascha Caron, Christopher Eckner, Luc Hendriks, Gudlaugur Johannesson, Roberto Ruiz de Austri, Gabrijela Zaharijas, 2023, original scientific article Keywords: gamma-ray astrophysics, dark matter, galactic center
Published in RUNG: 15.01.2024; Views: 434; Downloads: 5
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