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Meeting of High Energy Physics, Cosmology and High Energy Astrophysics

16 November 2020 to 4 December 2020
America/Guatemala timezone
Event to be held completely online

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Contribution List

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  1. 59. Clase 1: Machine Learning
    Bryan Zaldivar (IFT Madrid)
    16/11/2020, 09:30

    En este curso se dará una introducción genérica y lo más autocontenida posible a 'Machine Learning', concerniente al aprendizaje supervisado. Empezando por sentar las bases y conceptos de estadística necesarios para el desarrollo subsecuente del curso, se discutirá luego la tarea de regresión junto con las técnicas principales para controlar el sobreajuste de datos. Posteriormente se...

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  2. 58. Clase 2: Machine Learning
    Bryan Zaldivar (IFT Madrid)
    17/11/2020, 08:30
  3. 60. Sesión de Hands-on 1: Introducción a Machine Learning
    Melissa Maria Cruz Torres (CBPF - Brazilian Center for Physics Research (BR))
    17/11/2020, 14:00
  4. 63. Clase 3: Machine Learning
    Bryan Zaldivar (IFT Madrid)
    18/11/2020, 09:30
  5. 64. Clase 4: Machine Learning
    Bryan Zaldivar (IFT Madrid)
    19/11/2020, 08:30
  6. 62. Sesión de Hands-on 2: Introducción a Machine Learning
    Ivan Rene Morales Argueta (Universidad de San Carlos de Guatemala), Maynor Ballina (Universidad de San Carlos de Guatemala)
    19/11/2020, 14:00
  7. 65. Clase 5: Machine Learning
    Bryan Zaldivar (IFT Madrid)
    20/11/2020, 09:30
  8. 69. Clase 1: FPGAs para la aceleración de algoritmos de Machine Learning
    Dr Romina Molina
    23/11/2020, 09:00

    El objetivo de este taller es mostrar y hacer uso de herramientas para la aceleración de la etapa de inferencia de algoritmos de Machine Learning en FPGA/SoC, así como los pasos para llegar a la implementación final del sistema completo en esta la tecnología, remarcando qué es lo que debe tenerse en cuenta a la hora de implementar este tipo de algoritmos en estos dispositivos, así como los...

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  9. 70. Clase 2: FPGAs para la aceleración de algoritmos de Machine Learning
    Dr Romina Molina
    24/11/2020, 09:00
  10. 71. Clase 3: FPGAs para la aceleración de algoritmos de Machine Learning
    Dr Romina Molina
    25/11/2020, 09:00

    Video explicativo del flujo de trabajo para co-diseño hardware/firmware, desde Vivado, hasta Vitis

    https://www.youtube.com/watch?v=jEMbPeSDazU

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  11. 11. Welcome
    Fernando Quevedo (University of Cambridge)
    26/11/2020, 08:30
  12. 10. Unveiling the nature of dark matter: a multi-faceted search program
    Francesca Calore (LAPTh, CNRS)
    26/11/2020, 09:00
    Session: Dark Matter and Beyond Standard Model Searches
    Plenary talk

    Unveiling the nature of dark matter is one of the major endeavours of our century.
    The search for dark matter is developed across multiple channels and with different techniques.
    I will review the main candidates for particle dark matter and introduce how we tackle the challenge of discovering them.
    I will focus especially on indirect dark matter searches, which aim to identify the nature...

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  13. 18. Discussion
    26/11/2020, 10:00
  14. 17. Dark Matter Searches in Colliders
    Thiago Tomei Fernandez (UNESP - Universidade Estadual Paulista (BR))
    26/11/2020, 10:30
    Session: Dark Matter and Beyond Standard Model Searches
    Plenary talk

    The quest for dark matter (DM) is at the forefront of the scientific programme of the LHC experiments. In this talk, I will briefly review the gravitational evidences for dark matter and what are the gross features that make a good DM particle candidate. I will briefly touch upon the modelling of DM production at colliders, and review the experimental procedures for a search for dark matter...

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  15. 19. Discussion
    26/11/2020, 11:30
  16. 53. CMB spectral $\mu$-distortion during phase transition in the Bound Dark Matter (BDM) model
    Raúl Henríquez (Universidad de El Salvador)
    26/11/2020, 13:30
    Session: Dark Matter and Beyond Standard Model Searches
    Dark Matter and Beyond Standard Model Searches

    Spectral distortions of the CMB provide independent and complementary probes to study energy injection processes in the early universe. In this work was obtained the spectral $\mu$-distortion associated with phase transition of the dark particles in the BDM model. Several scenarios were simulated numerically with parameters: $a_{c} = [4.9 \times 10^{-7}, 3.3 \times 10^{-6}]$, $ f_{eff} =...

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  17. 26. Exploring new physics through extended Higgs sector
    MARIA EUGENIA CABRERA CATALAN (University of San Carlos of Guatemala)
    26/11/2020, 14:00

    In this talk I will give a short review of how the Higgs sector could give us some clues of physics beyond the Standard Model. Precision measurements of the Higgs coupling in colliders might tell us something about the scale of a more fundamental theory. By the other hand, and extended Higgs sector could work as a portal for WIMP Dark Matter. The talk will be based on 1912.01758 [hep-ph] and...

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  18. 13. Real Time Analysis at LHCb Experiment
    Xavier Vilasis Cardona (University of Barcelona (ES))
    27/11/2020, 09:00
  19. 15. Discussion
    27/11/2020, 10:00
  20. 4. Jet tagging at the LHC with Machine Learning
    Mr Bryan Zaldivar (IFT Madrid)
    27/11/2020, 10:30
    Session: Dark Matter and Beyond Standard Model Searches
    Plenary talk

    Jet tagging is one of the tasks in High Energy Physics which can profit the most form data-driven and Machine Learning methods. In this talk I will start by reviewing the approaches that exist in the literature and the state-of-the-art of the field. Afterwards, I will show an illustrative example where an efficient tagger for Beyond Standard Model searches at the LHC can be built out of a very...

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  21. 16. Discussion
    27/11/2020, 11:30
  22. 3. Thermodynamics of a magnetized neutral vector bosons gas
    Lismary de la Caridad Suárez González (Instituto de Cibernética Matemática y Física,Habana, Cuba)
    27/11/2020, 14:00
    Virtual Poster Presentation
    Virtual Poster Presentations

    This poster is dedicated to study the thermodynamic properties of a magnetized neutral vector boson gas at any temperature, with the aim to provide equations of state that allow more general and precise descriptions of astrophysical phenomena. The all-temperature analytical expressions for the thermodynamic magnitudes, as well as their non-relativistic limits, are obtained starting from the...

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  23. 9. Identificación de partículas por medio de una red neuronal aplicable a los datos provenientes de un Detector de Radiación Cherenkov de agua de la utilización de una red neuronal
    Mayra Silva (Universidad del Valle de Guatemala)
    27/11/2020, 14:20
    Virtual Poster Presentation
    Virtual Poster Presentations

    El objetivo general de este trabajo consiste en la identificación de partículas provenientes de cascadas de aire extensas de rayos cósmicos que inciden en la atmósfera.
    A partir de una simulación realizada en Geant4 que contiene las características del detector de radiación Cherenkov de agua que se encuentra en la universidad del Valle de Guatemala, se generaron suficientes datos para que...

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  24. 6. Beyond the Standard Model at the LHC: Using Machine Learning to Search for New Physics in All-Hadronic ttbar Final States
    Johan Sebastian Bonilla (University of California Davis (US))
    30/11/2020, 09:00
    Session: Dark Matter and Beyond Standard Model Searches
    Plenary talk

    In this talk I will cover two specific Beyond the Standard Model (BSM) analyses at ATLAS and CMS, both in the all-hadronic channels: a search for a supersymmetric (SUSY) partner to the top quark decaying to a new stable neutral particle and a SM top, and the other for heavy resonances decaying to a top+antitop (ttbar) pair. The searches utilize Run 2 data of proton-proton collisions delivered...

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  25. 36. Discussion
    30/11/2020, 10:00
  26. 54. B Physics at LHCb
    Melissa Maria Cruz Torres (CBPF - Brazilian Center for Physics Research (BR))
    30/11/2020, 10:30
    Session: Central American Research
    Central American research

    In this talk I will give a general overview about the B pursued at the LHCb Experiment.

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  27. 43. New Searches for Dark Sectors in Neutrino and Kaon Experiments
    Matheus Hostert (University of Minnesota)
    30/11/2020, 11:00
    Session: Dark Matter and Beyond Standard Model Searches
    Dark Matter and Beyond Standard Model Searches

    While incomplete, the experimental success and theoretical consistency of the Standard Model suggest that if we are to find new particles or interactions at low energies, they should be very weakly coupled to ordinary matter and likely organized in new secluded or "dark" sectors. In this way, our best chance for discovery lies in low-background and high-intensity experiments, such as neutrino...

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  28. 5. Axion dark matter search at CAST with the RADES detector
    Sergio Arguedas Cuendis (University of Vienna (AT))
    30/11/2020, 11:30

    Cosmological and astrophysical observations predict that around 25$\%$ of the energy content of the universe is made of dark matter. The nature of dark matter is currently unknown and a lot of effort is placed in the hunt for dark matter. One of the candidates for dark matter is the axion, a particle first introduced to solve the strong Charge-Parity problem of the Standard Model.

    The CERN...

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  29. 57. Discussion
    30/11/2020, 12:00
  30. 44. Very-high-energy photons and Neutrinos, and Gravitational waves from GRBs and Blazars
    Dr Nissim Fraija (IA-UNAM)
    01/12/2020, 09:05
    Session: High Energy Astrophysics
    Plenary talk

    Very-high-energy (VHE; > 10 GeV) photons are expected from the nearest and brightest Gamma-ray bursts (GRBs). VHE photons, at energies higher than 300 GeV, have been recently reported by the MAGIC and H.E.S.S. collaborations for different bursts. Orbiting satellites and ground-based telescopes followed these bursts. We analyze the multi-wavelength observations and show that the high-energy...

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  31. 47. Highlights from The HAWC Observatory
    Dr Ruben Alfaro (Universidad Nacional Autonoma (MX))
    01/12/2020, 10:05
    Session: High Energy Astrophysics
    Plenary talk

    The High Altitude Water Cherenkov (HAWC) observatory is a wide-field-of-view (2sr) and high duty cycle (>95%) gamma detector that operates at an altitude of 4100 m in the state of Puebla, Mexico. Since 2015, HAWC has continuously surveyed the sky, providing a unique insight into the very high energy (>1 TeV) astrophysical sources. In this talk, I will discuss some of the exciting results of...

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  32. 39. Discussion
    01/12/2020, 11:05
  33. 51. Study of gamma ray activity in blazars and some implications for neutrino emission
    Jose Rodrigo Sacahui Reyes (Universidad de San Carlos de Guatemala)
    01/12/2020, 13:30
    Session: High Energy Astrophysics
    High Energy Astrophysics

    Blazars are the most luminous extrgalactic gamma ray sources. They are a type of Active Galactic Nuclei which are powered by material falling onto a supermassive black hole at the center of the host galaxy. They show sporadic bursts of activity with different time range. In this talk we present a 10 year data analysis of a sample of bright blazars detected by Fermi-LAT (0.1-300 GeV), in...

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  34. 50. Potential of MATHUSLA for cosmic ray research
    Prof. Arturo Fernandez Tellez (Autonomous University of Puebla (MX))
    01/12/2020, 14:00
    Session: High Energy Astrophysics
    High Energy Astrophysics

    The main objective behind the MATHUSLA proposal is to build a large area hodoscope detector at ground level, close to the interaction point of the CMS detector, to look for the decay signals of neutral long lived particles (LLP) at the next HL-LHC runs in an environment with low background. LLPs are expected in the context of Beyond Standard Models, which try to solve open problems in...

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  35. 33. A relativistic model for quasi-periodic blazars
    Hector Perez
    01/12/2020, 14:30

    Blazars are very bright extragalactic objects whose luminous intensity is variable in differents frequency-band spectra. It has been observed that PG1553+113 presents the same quasi-periodic variability in all the bands analyzed. One possible explanation for this behavior is that PG1553+113 is a binary black holes system. In this work it is proposed to improve the binary black hole model...

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  36. 55. Discussion
    01/12/2020, 15:00
  37. 2. Active irreversible process in quantum field theory
    Prof. Alejandro Jenkins (Universidad de Costa Rica)
    02/12/2020, 09:00

    We describe the dynamics of a quantum field coupled to a moving heat bath, in the formalism of the Markovian master equation for the field considered as an open system. We apply this to the superradiance of a rotating black hole, which provides a useful paradigm for understanding other irreversible active processes. Fermions can't superradiate, but work may be extracted from their...

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  38. 25. Buy one gluon and get a graviton by free
    Bryan Larios
    02/12/2020, 09:30
  39. 35. Discussion
    02/12/2020, 10:00
  40. 7. Cathode Strip Chamber Upgrades for the Compact Muon Solenoid at CERN
    Johan Sebastian Bonilla (University of California Davis (US))
    02/12/2020, 10:30

    The Compact Muon Solenoid (CMS) experiment at CERN is a general purpose detector designed to reconstruct particle collisions delivered by the Large Hadron Collider. Currently the LHC and its experiments are in the second long shutdown (LS2) period which allows for upgrades to their sub-systems. The muon spectrometer of CMS is extremely useful in such a busy hadronic environment, as it can...

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  41. 8. High performance data acquisition and processing based on programmable SoC for multichannel particle detectors
    Mr Luis G. García Ordóñez (INFN Sezione di Trieste (IT))
    02/12/2020, 11:00

    Modern high energy physics experiments are characterized by a large number of detectors with several channels per detector. This leads to high amount of data generated in short periods of time (~TB/Sec). All this data must be acquired and processed on line in order to apply complex algorithms for data reduction and filtering before storage for subsequent offline data analysis. The following...

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  42. 46. ECAL 2 Data Analysis
    Werner Oswaldo Florian Samayoa (Universita e INFN Trieste (IT))
    02/12/2020, 11:30

    An extensive analysis on the data obtained by the electrocaloritmeter of COMPASS experiment at CERN. Statistical methods and pragmatic strategies are used to extract the characteristic model of the pulses in the detector in order to tune the parameters of the filters implemented in a DPP strategy. During the tuning of the process several discoveries were made from the data leading to some...

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  43. 56. Discussion
    02/12/2020, 12:00
  44. 45. Física de Partículas y Cosmología: un casamiento feliz
    Rogerio Rosenfeld (Instituto de Física Teórica - UNESP & ICTP-SAIFR & LIneA)
    02/12/2020, 14:00
  45. 52. Direct Dark Matter Searches
    Prof. Alvaro Chavarria (University of Washington)
    03/12/2020, 09:30
    Session: Dark Matter and Beyond Standard Model Searches
    Plenary talk

    Results from cosmological observations show that 85% of the matter in the universe is cold dark matter. However, its fundamental composition remains unknown, with several theoretical proposals for beyond-the-Standard-Model dark matter particle candidates. Because dark matter is bound to the Milky Way galaxy in a "halo," there should be a measurable dark matter particle flux through Earth. I...

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  46. 40. Discussion
    03/12/2020, 10:30
  47. 1. LAGO: El Observatorio Latinoamericano Gigante Estado Actual y Perspectivas Futuras
    Ivan Sidelnik (CONICET (Consejo Nacional de Investigaciones Cientifícas y Técnicas) - Centro Atómico Bariloche - Argentina)
    03/12/2020, 11:00
    Session: High Energy Astrophysics
    Plenary talk

    The Latin American Giant Observatory (LAGO) is an extended cosmic ray observatory composed by a network of water-Cherenkov detectors (WCD) spanning over different sites located at significantly different altitudes (from sea level up to more than 5000 m a.s.l.) and latitudes across Latin America, covering a huge range of geomagnetic rigidity cut-offs and atmospheric absorption/reaction levels....

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  48. 41. Discussion
    03/12/2020, 12:00
  49. 48. High Performance Computing at Universidad de Costa Rica
    Federico Muñoz-Rojas (Universidad de Costa Rica)
    03/12/2020, 12:30
    Session: Central American Research
    Central American research

    Computer Clusters have demonstrated to be a key tool in scientific research. New algorithms have been developed in several areas: bioinformatics, particle physics, nuclear physics, astrophysics, condensed matter, chemistry, engineering, economy, among many other fields. Over the last 10 years our university has been supporting research projects that need a lot of computer power to solve their...

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  50. 49. LASF4RI
    Marta Losada (Universidad Antonio Nariño, Colombia)
    04/12/2020, 09:00
  51. 67. Foro de discusión
    MARIA EUGENIA CABRERA CATALAN (University of San Carlos of Guatemala), Melissa Maria Cruz Torres (CBPF - Brazilian Center for Physics Research (BR))
    04/12/2020, 10:00
  52. 66. Doctorado Regional en Física Centro America y República Dominicana
    Carlos Rudamas (Universidad de El Salvador)
    04/12/2020, 11:00
  53. 68. Conclusiones y Propuestas
    04/12/2020, 11:30
  54. 37. Clausura
    MARIA EUGENIA CABRERA CATALAN (University of San Carlos of Guatemala), Melissa Maria Cruz Torres (CBPF - Brazilian Center for Physics Research (BR))
    04/12/2020, 12:15
  55. 42. Discussion
  56. 61. Hands-on-session 1
    Melissa Maria Cruz Torres (CBPF - Brazilian Center for Physics Research (BR))