M. Rodríguez Cahuantzi
A5090263229- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Nuclear reactor physics and engineering
- Dark Matter and Cosmic Phenomena
- Statistical Methods and Bayesian Inference
- Astrophysics and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Nuclear physics research studies
- Radiation Detection and Scintillator Technologies
- Pulsars and Gravitational Waves Research
- Superconducting Materials and Applications
- Computational Physics and Python Applications
- Stochastic processes and statistical mechanics
- Particle Accelerators and Free-Electron Lasers
- Distributed and Parallel Computing Systems
- Cold Atom Physics and Bose-Einstein Condensates
- advanced mathematical theories
- Atomic and Molecular Physics
- Advanced Chemical Physics Studies
- Artificial Intelligence in Healthcare and Education
- Black Holes and Theoretical Physics
- Statistical Mechanics and Entropy
- Advanced X-ray and CT Imaging
Benemérita Universidad Autónoma de Puebla
2016-2025
A. Alikhanyan National Laboratory
2015-2024
Universidad Nacional Autónoma de México
2011-2024
University of Bergen
2010-2024
Central China Normal University
2019-2023
China Institute of Atomic Energy
2023
Brookhaven National Laboratory
2020
RIKEN BNL Research Center
2020
Center for Research and Advanced Studies of the National Polytechnic Institute
2015-2020
University of Kansas
2020
We examine the theoretical motivations for long-lived particle (LLP) signals at LHC in a comprehensive survey of Standard Model (SM) extensions. LLPs are common prediction wide range theories that address unsolved fundamental mysteries such as naturalness, dark matter, baryogenesis and neutrino masses, represent natural generic possibility physics beyond SM (BSM). In most cases LLP lifetime can be treated free parameter from $\mu$m scale up to Big Bang Nucleosynthesis limit $\sim 10^7$m....
We present the current status of MATHUSLA (MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles) long-lived particle (LLP) detector at HL-LHC, covering design, fabrication and installation CERN Point 5. MATHUSLA40 is a 40 m-scale with an air-filled decay volume that instrumented scintillator tracking detectors, to be located near CMS. Its large size, close proximity CMS interaction point about 100 m rock shielding from LHC backgrounds allows it detect LLP production rates lifetimes...
Abstract The ALICE collaboration is proposing a completely new detector, 3, for operation during the LHC Runs 5 and 6. One of 3 subsystems Muon IDentifier detector (MID), which has to be optimised efficient reconstruction J / ψ at rest (muons down p T ≈ 1.5 GeV/ c ) | η < 1.3. Given modest particle flux expected in MID few Hz/cm 2 , technologies like plastic scintillator bars (≈ 1 m length) equipped with wavelength-shifting fibers silicon photomultiplier readout, lightweight Multi-Wire...
We compute the Λ and Λ‾ global polarization in semi-central heavy-ion collisions modeling source as consisting of a high-density core less dense corona. show that when more Λs than Λ‾s are produced corona, this is combined with smaller number coming from core, compared to those an amplification effect for respect can occur. This becomes important lower collision energies quantitatively accounts polarizations measured by STAR beam energy scan.
Two modules of the AD detector have been studied with test beam at T10 facility CERN. The is made scintillator pads read out by wave-length shifters (WLS)coupled to clean fibres that carry produced light photo-multiplier tubes (PMTs). In ALICE used trigger and study physics diffractive ultra-peripheral collisions as well for a variety technical tasks like beam-gas background monitoring or luminometer. position dependence modules' efficiency has measured effect hits on WLS PMTs evaluated....
We report on recent progress and next steps in the design of proposed MATHUSLA Long Lived Particle (LLP) detector for HL-LHC as part Snowmass 2021 process. Our understanding backgrounds has greatly improved, aided by detailed simulation studies, significant R&D been performed designing scintillator detectors their performance. The collaboration is track to complete a Technical Design Report, there are many opportunities interested new members contribute towards goal constructing time...
We present the conceptual design for miniBeBe detector proposed to be installed as a level-0 trigger TOF of NICA-MPD . discuss and geometrical array its sensitive parts, read-out electronics well mechanical support that is envisioned. also simulation results p + Bi collisions study capabilities function multiplicity both TOF, serve beam-gas interaction veto locate beam-beam vertex.
We report on recent progress in the design of proposed MATHUSLA Long Lived Particle (LLP) detector for HL-LHC, updating information original Letter Intent (LoI), see CDS:LHCC-I-031, arXiv:1811.00927. A suitable site has been identified at LHC Point 5 that is closer to CMS Interaction (IP) than assumed LoI. The decay volume increased from 20 m 25 height. Engineering studies have made order locate much below ground, bringing even IP. With these changes, a 100 x same physics reach large c$\tau$...
In this Letter of Intent (LOI) we propose the construction MATHUSLA (MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles), a dedicated large-volume displaced vertex detector HL-LHC on surface above ATLAS or CMS. Such detector, which can be built using existing technologies with reasonable budget in time upgrade, could search neutral long-lived particles (LLPs) up to several orders magnitude better sensitivity than CMS, while also acting as cutting-edge cosmic ray telescope at CERN...
The ALICE collaboration is proposing a completely new detector, 3, for operation during the LHC Runs 5 and 6. One 3 subsystems Muon IDentifier detector (MID), which has to be optimised efficient reconstruction of $J/ψ$ at rest (muons down $p_{\rm T}\approx1.5$ GeV/$c$) $|η|<1.3$. Given modest particle fluence expected in MID few Hz/cm$^2$, technologies like plastic scintillator bars ($\approx1$ length) equipped with wavelength-shifting fibers silicon photomultiplier readout, lightweight...
The Silicon Photomultipliers (SiPMs) are commonly used in the construction of radiation detectors such as those high energy experiments and its applications where an excellent time resolution is required for triggering. In most this cases, trigger systems electric charge information discarded due to limitations data acquisition. work we propose a method, using simple detector based on organic plastic scintillator 2×2×0.3 cm3 size, estimate obtained from acquisition fast output signal SensL...
The performance of the proposed MATHUSLA detector as an instrument for studying physics cosmic rays by measuring extensive air showers is presented. designed to observe and study decay long-lived particles produced at pp interaction point CMS CERN during HL-LHC data-taking period. will be composed many layers long scintillating bars that cannot measure more than one hit per bar correctly report coordinate in case multiple hits. This shows adding a layer RPC detectors with both analogue...
Accelerator experiments located underground are suitable for the study of atmospheric muons. The use high-energy collider detectors cosmic-ray physics was pioneered during era Large Electron-Positron (LEP) at CERN by ALEPH, DELPHI and L3 collaborations. A development these programs is possible Hadron Collider (LHC), where like ALICE CMS will operate many years, with possibility recording a large amount data. In this proceedings, review results obtained LEP LHC presented. This material...
The Multipurpose Detector (MPD) is an experimental array, currently under construction, designed to study the nuclear matter created during collisions that will be provided by Nuclotron-based Ion Collider fAcility (NICA) at JINR. MPD-NICA experiment consists of a typical array particle detectors as those used heavy-ion LHC and RHIC. To increase trigger capabilities MPD for stage 2 NICA operation, detector conformed two arrays 80 plastic scintillator cells each located symmetrically opposite...
We present results for time resolution studies performed on three different scintillating plastics and two silicon photo-multipliers. These are intended to determine whether plastic/silicon photo-multiplier systems can be employed provide a fast trigger signal NICA's Multi Purpose Detector (MPD). Our show that such system made of cells with transverse dimensions order few cm, coupled photo-multipliers, provides about 50 ps, which even further improved attain the MPD requirements 20 ps.
The secondary flow of particles produced in the atmosphere by galactic and extragalactic primary cosmic rays is affected Earth’s magnetic field atmospheric variables such as pressure temperature. In this work measurements ray rate obtained with three counting detectors are shown. consist plastic scintillators coupled to photomultiplier tubes. output pulses from tubes were discriminated counted a custom data acquisition board. Measurement altitude was made minimum system (raspberry Pi)....
The study of cosmic rays with underground accelerator experiments started the LEP detectors at CERN. ALEPH, DELPHI and L3 studied some properties atmospheric muons such as their multiplicity momentum. In recent years, an extension improvement studies has been carried out by ALICE CMS experiments. Along LHC high luminosity program experimental setups have proposed to increase potential discovery LHC. An example is MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles detector (MATHUSLA)...
ALICE is one of the four main experiments LHC at CERN. Located 40 meters underground, with 30 m overburden rock, it can also operate to detect muons produced by cosmic-ray interactions in atmosphere. An analysis data collected triggers from 2010 2013, corresponding about 31 days live time, presented. Making use ability Time Projection Chamber (TPC) track large numbers charged particles, a special emphasis given study muon bundles, and particular events high-muon density.
During the 2011 Pb-Pb run, dedicated triggers were used by ALICE Collaboration to enrich ultra-peripheral collisions (UPC) measure J/ψ production cross section and its rapidity dependence at a centre of mass energy 2.76 TeV per nucleon pair. In this article, ongoing studies on photoproduction in UPC events are presented.
ALICE is one of four large experiments at the CERN Large Hadron Collider.Located 52 meters underground with 28 overburden rock, it has also been used to detect atmospheric muons produced by cosmic-ray interactions in upper atmosphere.We present muon multiplicity distribution these events and their comparison Monte Carlo simulation.This analysis exploits size excellent tracking capability Time Projection Chamber.A special emphasis given study high containing more than 100 reconstructed...