I. Pedraza
A5071078863- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Computational Physics and Python Applications
- Radiation Detection and Scintillator Technologies
- Black Holes and Theoretical Physics
- Astrophysics and Cosmic Phenomena
- Muon and positron interactions and applications
- Distributed and Parallel Computing Systems
- Medical Imaging Techniques and Applications
- Advanced Data Storage Technologies
- Nanoparticles: synthesis and applications
- advanced mathematical theories
- Particle Accelerators and Free-Electron Lasers
- Nuclear reactor physics and engineering
- Gamma-ray bursts and supernovae
- Geochemistry and Elemental Analysis
- Bryophyte Studies and Records
- Advanced Nanomaterials in Catalysis
- Yeasts and Rust Fungi Studies
- Carbon and Quantum Dots Applications
Benemérita Universidad Autónoma de Puebla
2016-2025
Institute of High Energy Physics
2014-2024
Bulgarian Academy of Sciences
2023-2024
A. Alikhanyan National Laboratory
2022-2024
Cedars-Sinai Medical Center
2020-2024
University of Antwerp
2024
Center for Migration Studies of New York
2020
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
2017
Universidad Autónoma de Zacatecas "Francisco García Salinas"
2017
University of Wisconsin–Madison
2010-2016
The transfer of nanoparticles (NPs) into the food chain through edible plants is great concern. Cucumis sativus L. a freshly consumed garden vegetable that could be in contact with NPs biosolids and direct agrichemical application. In this research, cucumber were cultivated for 150 days sandy loam soil treated 0 to 750 mg TiO2 kg–1. Fruits analyzed using synchrotron μ-XRF μ-XANES, ICP-OES, biochemical assays. Results showed catalase leaves increased (U mg–1 protein) from 58.8 control 78.8...
Previous studies have reported the uptake of cerium oxide nanoparticles (nCeO2) by plants, but their physiological impacts are not yet well understood. This research was aimed to study impact nCeO2 on oxidative stress and antioxidant defense system in germinating rice seeds. The seeds were germinated for 10 days suspension at 62.5, 125, 250, 500 mg L–1 concentrations. Ce uptake, growth performance, levels, membrane damage, responses seedlings analyzed. tissues increased with concentrations,...
Abstract The Physics Beyond Colliders initiative is an exploratory study aimed at exploiting the full scientific potential of CERN’s accelerator complex and infrastructures through projects complementary to LHC other possible future colliders. These will target fundamental physics questions in modern particle physics. This document presents status proposals presented framework Standard Model working group, explore their reach impact that CERN could have next 10–20 years on international landscape.
Despite the remarkable number of publications on interaction engineered nanoparticles (ENPs) with plants, knowledge implications ENPs in nutritional value food crops is still limited. This research was performed to study quality rice grains harvested from plants grown soil treated cerium oxide (nCeO2). Three varieties (high, medium, and low amylose) were cultivated full maturity amended nCeO2 at 0 500 mg kg(-1) soil. Ce accumulation, nutrient content, antioxidant property, evaluated. Results...
Cerium oxide nanoparticles (nCeO2) have been shown to significant interactions in plants; however, there are limited reports on their impacts rice (Oryza sativa). Given the widespread environmental dispersal of nCeO2, it is paramount understand its biochemical and molecular a globally important agricultural crop, such as rice. This study was carried out determine impact nCeO2 oxidative stress, membrane damage, antioxidant enzymes' activities, macromolecular changes roots seedlings. Rice...
Studies have shown that CeO₂ nanoparticles (NPs) can be accumulated in plants without modification, which could pose a threat for human health. In this research, cilantro (Coriandrum sativum L.) were germinated and grown 30 days soil amended with 0 to 500 mg kg⁻¹ NPs analyzed by spectroscopic techniques biochemical assays. At 125 kg⁻¹, produced longer roots (p ≤ 0.05), at there was higher Ce accumulation tissues 0.05). mg, catalase activity significantly increased shoots ascorbate peroxidase...
Physics Beyond Colliders is an exploratory study aimed at exploiting the full scientific potential of CERN's accelerator complex and its infrastructure in next two decades through projects complementary to LHC, HL-LHC other possible future colliders. These should target fundamental physics questions that are similar spirit those addressed by high-energy colliders, but require different types beams experiments. A kick-off workshop held September 2016 identified a number areas interest working...
The η/η mesons are almost unique in the particle universe since they Goldstone boson and dynamics of their decays strongly constrained.Because η have all zero quantum numbers, that violate conservation laws can occur without interfering with a corresponding current.The integrated eta meson samples collected earlier experiments been less than ∼ 10 8 events, limiting considerably search for such rare decays.The sample is even more scarce.A new experiment REDTOP, being proposed at proton...
The CMS experiment, located at the Large Hadron Collider (LHC) in CERN, has a redundant muon system composed by three different gaseous detector technologies: Cathode Strip Chambers (in forward regions), Drift Tubes central region), and Resistive Plate (both its regions). All are used for reconstruction triggering. RPC confers robustness redundancy to trigger. operation challenging background pileup conditions of LHC environment is presented. provides information all track finders thus...
Presentamos una introduccion a los conceptos basicos del rompimiento de la simetria electrodebil y fisica Higgs dentro Modelo Estandar sus extensiones supersimetricas. Se presenta tambien breve perspectiva general mecanismos alternativos simetria. Ademas las bases teoricas, se discute el estado actual experimental implicaciones para futuros experimentos en LHC colisionadores lineales e+e-.
Abstract A new generation of resistive plate chambers, capable withstanding high particle fluxes (up to 2000 Hz · cm -2 ) and instrumented with precise timing readout electronics is proposed equip two the four pseudorapidity stations CMS muon system. Double-gap RPC detectors, each gap made 1.4 mm High Pressure Laminate electrodes separated by a gas same thickness, are proposed. The layout reduces amount avalanche charge produced passage charged through detector. This improves rate capability...
The HL-LHC phase is designed to increase by an order of magnitude the amount data be collected LHC experiments. To achieve this goal in a reasonable time scale instantaneous luminosity would also up 6 · 1034 cm−2s−1. region forward muon spectrometer (|η| > 1.6) not equipped with RPC stations. expected particles flux 2 kHz/cm2 (including safety factor 3) motivates installation chambers guarantee redundancy CSC already present. current CMS technology cannot sustain background level. new that...
During Phase-2 of the LHC, known as High Luminosity LHC (HL-LHC), accelerator will increase its instantaneous luminosity to 5 × 1034 cm−2 s−1, delivering an integrated 3000 fb−1 over 10 years operation starting from 2027. In view HL-LHC, CMS muon system be upgraded sustain efficient triggering and reconstruction performance. Resistive Plate Chambers (RPCs) serve dedicated detectors for due their excellent timing resolution, extend acceptance up pseudorapidity values |η|=2.4. Before Long...
During 2013 and 2014 (Long Shutdown LS1) the CMS experiment is upgrading forward region installing a fourth layer of RPC detectors in order to complete improve muon system performances view foreseen high luminosity run LHC. The new two endcap disks consists 144 double-gap chambers assembled at three different production sites: CERN, Ghent (Belgium) BARC (India). chamber components as well final are subjected full series tests established parallel all sites.
Three species of Morganella are reported for Costa Rica: M . juliginea (Berk. & Curt.) Kreisel Dring, M. velutina ex Mass.) Dring (first record the country) and costericensis Morales, new species.
The high pseudo-rapidity region of the CMS muon system is covered by Cathode Strip Chambers (CSC) only and lacks redundant coverage despite fact that it a challenging for muons in terms backgrounds momentum resolution. In order to maintain good efficiency trigger this additional RPCs are planned be installed two outermost stations at low angle named RE3/1 RE4/1. These will use with finer granularity timing resolution mitigate background effects increase redundancy system.
We report on a systematic study of double-gap and four-gap phenolic resistive plate chambers (RPCs) for the Phase-2 upgrade CMS muon system at high η. In present study, we constructed real-sized RPCs with gap thicknesses 1.6 0.8 mm, respectively, 2-mm-thick high-pressure-laminated (HPL) plates. examined prototype cosmic rays 100-GeV muons provided by SPS H4 beam line CERN. To examine rate capability both Korea University CERN GIF++ facility, were irradiated 137Cs sources providing maximum...
The muon spectrometer of the CMS (Compact Muon Solenoid) experiment at Large Hadron Collider (LHC) is equipped with a redundant system made Resistive Plate Chambers (RPCs) and Drift Tube (DT) chambers in barrel, RPC Cathode Strip (CSCs) endcap region. In this paper, first results performance during 2015 LHC running 13 TeV presented. stability performance, terms efficiency, cluster size noise, reported.