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122. Improved calibration methods and reconstruction of the underground muon detector of the Pierre Auger ObservatoryJoaquín De Jesús, A. Abdul Halim, P. Abreu, Andrej Filipčič, Jon Paul Lundquist, Shima Ujjani Shivashankara, Samo Stanič, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, 2025, objavljeni znanstveni prispevek na konferenci Opis: As part of the upgrade of the Pierre Auger Observatory, known as AugerPrime, the Underground
Muon Detector is being deployed in the low-energy extension of the Surface Detector. It comprises
an array of 30 m[sup]2 plastic scintillator muon counters, buried 2.3 meters underground near the water-Cherenkov detectors, allowing for direct measurement of the muonic component of air showers in the energy range of 10[sup]16.5 − 10[sup]19 eV. To achieve an extended dynamic range, the detector operates in two modes: the binary mode, which is optimized for low muon densities, and the ADC mode, designed for high muon densities. In this contribution, we present the latest improvements to the calibration procedure of the ADC mode and to the data reconstruction of the binary mode. We assess their performance with simulations.
Ključne besede: ultra-high-energy cosmic rays (UHECRs), extensive air showers, Pierre Auger Observatory, AugerPrime upgrade, Auger underground muon detector (UMD), muonic air-shower component, detector calibration, data reconstruction
Objavljeno v RUNG: 30.04.2025; Ogledov: 755; Prenosov: 8
 Celotno besedilo (991,94 KB)
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123. Amplifying UHECR arrival direction information using mass estimators at the Pierre Auger ObservatoryLorenzo Apollonio, A. Abdul Halim, P. Abreu, Andrej Filipčič, Jon Paul Lundquist, Shima Ujjani Shivashankara, Samo Stanič, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, 2025, objavljeni znanstveni prispevek na konferenci Opis: The origin of Ultra-High-Energy Cosmic Rays (UHECRs) is one of the biggest mysteries in modern astrophysics. Since UHECRs are deflected by Galactic and extragalactic magnetic fields, their arrival directions do not point to their sources. Previous analyses conducted on the arrival directions of high-energy events (E ≥ 32 EeV) recorded by the Surface Detector of the Pierre Auger Observatory have not shown significant anisotropies. The largest excess found in the first 19 years of data - at the 4.0 sigma level - is in the region around Centaurus A, and it is also the driving force of a correlation of UHECR arrival directions with a catalog of Starburst Galaxies, which is at the 3.8 sigma level. Since UHECRs are mostly nuclei, the lightest ones (least charged) are also the least deflected. While the mass of the events can be estimated better using the Fluorescence Detector of the Pierre Auger Observatory, the Surface Detector provides the necessary statistics needed for astrophysical studies. The introduction of novel mass-estimation techniques, such as machine learning models and an algorithm based on air-shower universality, will help identify high-rigidity events in the Surface Detector data of the Pierre Auger Observatory. With this work, we present how event-per-event mass estimators can help enhance the sensitivity in the search for anisotropies in the arrival directions of UHECRs at small and intermediate angular scales using simulations.
Ključne besede: ultra-high-energy cosmic rays (UHECRs), extensive air showers, Pierre Auger Observatory, UHECR propagation, UHECR arrival directions, UHECR mass composition, Centaurus A radio galaxy, starburst galaxies, air-shower universality
Objavljeno v RUNG: 30.04.2025; Ogledov: 688; Prenosov: 11
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124. An investigation into bipolar fuzzy hoop algebras and their applicationsTahsin Oner, Neelamegarajan Rajesh, Ravi Kumar Bandaru, Hashem Bordbar, 2025, izvirni znanstveni članek Opis: This paper introduces bipolar fuzzy sub-hoops and bipolar fuzzy filters within
hoop algebras, extending fuzzy logic to incorporate both positive and negative membership
degrees. We define these structures, explore their algebraic properties, and establish
their interplay through rigorous theorems. Key results include characterizations of bipolar
fuzzy filters via level sets and conditions under which they become implicative filters.
These findings enhance the theoretical framework of many-valued logic and offer practical
applications in decision-making, image processing, and spatial reasoning under uncertainty.
Our work provides a foundation for advanced fuzzy systems handling complex,
contradictory information.
Ključne besede: hoop, bipolar fuzzy sub-hoop, bipolar fuzzy ideal
Objavljeno v RUNG: 29.04.2025; Ogledov: 563; Prenosov: 4
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126. Sexuality and the configurations of masculinity in twentieth-century Slovene male-authored writing : lecture at the Department of Cultures, Politics and Society, University of Turin, Turin, Italy, 23. 4. 2025Darko Ilin, 2025, predavanje na tuji univerzi Ključne besede: sexuality, masculinity, Slovene literature, gender studies
Objavljeno v RUNG: 28.04.2025; Ogledov: 541; Prenosov: 0
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127. Sexuality and literary configurations of masculinity in Slovene 20th century writing : lecture at the Institute for Slavic Studies, Faculty for Polish and Classical Philology, Adam Mickiewicz University, Poznan, Poland, 26. 3. 2025Darko Ilin, 2025, predavanje na tuji univerzi Ključne besede: sexuality, masculinity, Slovene literature, gender studies
Objavljeno v RUNG: 28.04.2025; Ogledov: 540; Prenosov: 0
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