Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)最新文献

{"title":"Recent results from the GRAPES-3 experiment","authors":"P. Mohanty","doi":"10.22323/1.444.0535","DOIUrl":"https://doi.org/10.22323/1.444.0535","url":null,"abstract":"The GRAPES-3 experiment located in Ooty, India at an altitude of 2200 m is operating with a dense array of scintillator detectors and a large area muon telescope to sample the electromagnetic and muonic components in the cosmic ray showers respectively. It records about a billion shower events per year. Here we discuss the GRAPES-3’ s recent measurements of cosmic ray proton energy spectrum below the Knee. We provide an overview of the cosmic ray small anisotropy results at TeV energies with two distinct structures which are also consistent with the observation of other air shower arrays. The status of the upgrade of the GRAPES-3 experiment is discussed","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115492455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"AntiHelium-3 Search with the GRAMS Experiment","authors":"J. Zeng","doi":"10.22323/1.444.1407","DOIUrl":"https://doi.org/10.22323/1.444.1407","url":null,"abstract":"Gamma-Ray and AntiMatter Survey (GRAMS) is a next-generation experiment using a Liquid Argon Time Projection Chamber (LArTPC) to detect gamma rays and antiparticles. Especially for antiparticle detection, GRAMS could reach high sensitivity within the low energy region (< 0.5GeV ) using a cost-effective LArTPC design. GRAMS is projected to be able to make background-free dark matter measurements from antimatter detection in the energy range of 0.1-0.5 GeV/n. In this poster, I will introduce the GRAMS detection concept and particle identification techniques. With the GRAMS instrument, we could detect antiprotons, antideuterons and potentially antihe-lium nuclei. I will introduce the method of separating antihelium from the antiproton background. Based on this method, I will talk about the flux limit that GRAMS can reach for antihelium-3. This method will provide an opportunity to test a variety of dark matter models.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116229398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A pixel based tracker for the HEPD-02 detector","authors":"E. Ricci","doi":"10.22323/1.444.0164","DOIUrl":"https://doi.org/10.22323/1.444.0164","url":null,"abstract":"Tracking detectors serve as the foundational technology for a diverse array of instruments designed to measure particles in space, significantly enhancing our understanding of the Universe, as seen through projects like PAMELA, AMS-02, and Fermi. These experiments have relied on silicon microstrips as tracking detectors due to their established reliability, stability, and exceptional performance. Looking ahead to the design of upcoming missions such as AMS-100 or ALADINO, which involve detectors spanning tens of square meters and requiring sub-micrometer spatial resolution, the scientific community seeks solutions to mitigate noise, streamline readout systems, and bolster track reconstruction capabilities. A near-optimal solution emerging as a standard in particle physics experiments at accelerators and adaptable for space applications is pixel detectors. The HEPD-02 detector has proven to be an ideal benchmark for a novel approach based on Monolithic Active Pixel Sensors. While sharing the same scientific and technical requirements as previous experiments, HEPD-02 covers a smaller surface area. This contribution outlines the technical challenges tackled by the team that constructed the HEPD-02 tracker, along with the solutions implemented. Additionally, the detector’s characterization with electrons and hadrons demonstrates the excellent performance of this new design.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126078372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurement of cosmic-ray proton and helium spectra from the ISS-CREAM experiment","authors":"G. Choi","doi":"10.22323/1.444.0108","DOIUrl":"https://doi.org/10.22323/1.444.0108","url":null,"abstract":"The Cosmic Ray Energetics And Mass for the International Space Station (ISS-CREAM) exper-iment successfully recorded data for 539 days from Aug. 2017 to Feb. 2019. The ISS-CREAM instrument consists of a Silicon Charge Detector (SCD), carbon targets, a calorimeter (CAL), a top counting detector (TCD), a bottom counting detector (BCD), and a boronated scintillator detector (BSD). In this analysis, the SCD was used for the charge measurements. It comprises four layers, and each SCD layer is finely segmented with 2,688 silicon pixels to minimize charge misidentification due to the backscattered particles. The CAL was used for the energy measurements. It comprises 20 layers of tungsten/scintillating fibers. Each tungsten/scintillating-fiber layer consists of a 50 cm × 50 cm × 3.5 mm tungsten plate, followed by a layer of fifty 1 cm-wide 50 cm-long scintillating-fiber ribbons. The CAL also provides the incident cosmic-ray track and the high-energy trigger. For the low-energy trigger, the TCD and BCD were used. In this paper, we present the proton spectrum from the ISS-CREAM experiment in the energy range of 1.6 - 655 TeV and the preliminary helium spectrum in the energy range of 2.7 TeV - 1.1 PeV.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131432639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new perspective on cosmology through Supernovae and Gamma-ray Bursts","authors":"Biagio De De Simone, Maria Giovanna Dainotti, Tiziano Schiavone, G. Montani, E. Rinaldi, G. Lambiase, Malgorzata Bogdan, Sahil Ugale, Khadir Mohammed Islam, Kenzaburo Kawaguchi, T. Moriya, T. Takiwaki, N. Tominaga, A. Gangopadhyay","doi":"10.22323/1.444.1367","DOIUrl":"https://doi.org/10.22323/1.444.1367","url":null,"abstract":"","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130958042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low Power Real-Time Muon Track Reconstruction for Water(Ice) Cherenkov Neutrino Telescopes","authors":"M. Jin","doi":"10.22323/1.444.1081","DOIUrl":"https://doi.org/10.22323/1.444.1081","url":null,"abstract":"In recent years","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123393649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine Learning Techniques for the EUSO-SPB2 Fluorescence Telescope","authors":"G. Filippatos, M. Zotov","doi":"10.22323/1.444.0234","DOIUrl":"https://doi.org/10.22323/1.444.0234","url":null,"abstract":"The Extreme Universe Space Observatory on a Super Pressure Balloon 2 (EUSO-SPB2) is the most advanced balloon mission undertaken by the JEM-EUSO collaboration. EUSO-SPB2 is built on the experience of previous stratosphere missions, EUSO-Balloon and EUSO-SPB, and of the Mini-EUSO space mission currently active onboard the International Space Station. EUSO- SPB2 is equipped with two instruments: a fluorescence telescope aimed at registering ultra-high energy cosmic rays (UHECRs) with an energy above 2 EeV and a Cherenkov telescope built to measure direct Cherenkov emission from cosmic rays with energies above 1 PeV. The EUSO-SPB2 mission will provide pioneering observations on the path towards a space-based multi-messenger observatory. As such, a special attention was paid to the development of triggers and other software aimed at comprehensive data analysis. A whole number of methods based on machine learning (ML) and neural networks was developed during the construction of the experiment and a few others are under active development. Here we provide a brief review of the ML-based methods already implemented in the instrument and the ground software and report preliminary results on the ML-based reconstruction of UHECR parameters for the fluorescence telescope.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130127839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Front-End Computational Modeling and Design for the Antarctic Demonstrator for the Advanced Particle-astrophysics Telescope","authors":"M. Sudvarg, Ye Htet, R. Chamberlain, J. Buhler, Blake Bal, C. Altomare, D. Serini, M. Nicola, Mazziotta, L. Venere, Wenlei Chen, J. Buckley, Ulysses Atekson, Meagan Konst, T. Lang, Shun, Li, Diana Pacheco-Garcia, Nick Song, Chenfeng Zhao, Zhiting Zhou, M. Andrew, R. Bose, D. Braun, E. Burns, M. Cherry, J. Dumonthier, M. Errando, S. Funk, P. Ghosh, F. Giordano, Jonah, Hoffman, Z. Hughes, Aera Jung, P. Kelly, J. Krizmanic, Makiko Kuwahara, F. Licciulli, Gang, Liu, L. Lorusso, J. Mitchell, J. W. Mitchell, G. A. Nolfo, G. Panzarini, Richard Peschke, R. Paoletti, Roberta Pillera, B. Rauch, G. Simburger, G. Suárez, T. Tatoli, G. Varner, A. Eric, Wulf, A. Zink","doi":"10.22323/1.444.0764","DOIUrl":"https://doi.org/10.22323/1.444.0764","url":null,"abstract":"The Advanced Particle-astrophysics Telescope (APT) is a planned space-based observatory designed to localize MeV to TeV transients such as gamma-ray bursts in real time using onboard computational hardware. The Antarctic Demonstrator for APT (ADAPT) is a prototype high-altitude balloon mission scheduled to fly during the 2025–26 season. Gamma-ray-induced scintillations in CsI tiles will be captured by perpendicular arrays of optical fibers running across both tile surfaces, as well as SiPM-based edge detectors to improve light collection and calorimetry. Signal samples are captured by analog waveform digitizer ASICs then sent to the front end of the computational pipeline, which is designed to be deployed on a set of FPGAs. This paper presents a model for uncertainty in the measured positions and deposited energies of Compton scatters in ADAPT, informed by simulations of the scintillation response and optical propagation properties of the CsI tiles, as well as existing characterizations of the SiPM and preamplifier boards. Anisotropic background radiation and event pileup are also considered. We describe our current implementation of event processing and data reduction for individual gamma rays, including both pedestal subtraction and signal integration. Preliminary work shows that high-level synthesis (HLS) enables the logic for pedestal subtraction and signal integration across 96 ASIC channels to run in 302 clock cycles on a single Kintex-7 FPGA. This demonstrates the feasibility of using FPGA hardware to accelerate the front-end event-building stage prior to back-end reconstruction and localization.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"347 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124301445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of temporal variation of cosmic ray intensity observed with global networks of neutron monitors and muon detectors","authors":"K. Munakata, M. Kozai, C. Kato, Y. Hayashi, Y. Masuda, R. Kataoka, A. Kadokura, S. Miyake, K. Iwai, R. R. S. Mendonça, E. Echer, A. Lago, M. Rockenbach, N. Schuch, J. Bageston, C. R. Braga, H. K. Jassar, M. Sharma, M. Duldig, J. Humble, I. Sabbah, P. Mangeard, T. Kuwabara, P. Evenson","doi":"10.22323/1.444.1228","DOIUrl":"https://doi.org/10.22323/1.444.1228","url":null,"abstract":"The temporal variation of cosmic ray intensity recorded by a ground-based detector includes contributions from varying cosmic ray density (or isotropic intensity) and anisotropy in space. We deduce these contributions separately and accurately, each as a function of primary cosmic ray rigidity and time, by analyzing the cosmic ray intensity observed with global networks of neutron monitors and multidirectional muon detectors altogether. In such analyses, however, we need to pay special attention to local effects including atmospheric effects which are superposed on the signal temporal variation of cosmic ray density and anisotropy. This is particularly important in analyses of the data during the “quiet period” when only small signal variation is expected. We present our analyses of the data during two sample periods in January-February and July-August, 2012, during each of which an extended cosmic ray decrease lasting for ~five days with a strong anisotropy was observed.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126121328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Einstein Telescope","authors":"E. Coccia","doi":"10.22323/1.444.1591","DOIUrl":"https://doi.org/10.22323/1.444.1591","url":null,"abstract":"The Einstein Telescope (ET) is a proposed European ground-based gravitational-wave observatory to explore the universe with gravitational waves up to cosmological distances. It is an evolution of the present second-generation detectors such as Advanced LIGO, Advanced Virgo, and KAGRA, leading to a sophisticated design including optimum site selection, and could be operating in the mid 2030s. There are several spectacular goals, shortly reported here, that can only be achieved through the detection of gravitational waves with a third-generation detector like ET, and other planned detectors like Cosmic Explorer in the U.S. For other goals, gravitational wave detectors are complementary to facilities exploiting electromagnetic radiation or other messengers, such as neutrinos and cosmic rays. Combined observations through GWs, electromagnetic signals, neutrinos and/or cosmic rays, will give us a multi-messenger and more comprehensive picture of many energetic phenomena of the Universe. The main scientific objectives and the potential for discoveries of ET in astrophysics, cosmology and fundamental physics are briefly reviewed.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127046912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}