scholarly journals Simulation Study for the Energy Resolution Performances of Homogenous Calorimeters with Scintillator-Photodetector Combinations

2018 ◽  
Vol 2018 ◽  
pp. 1-11
Author(s):  
G. Aydın
Keyword(s):  
Energy Resolution ◽  
Simulation Study ◽  
Particle Physics ◽  
Computational Study ◽  
High Energy ◽  
Simulation Program ◽  
Geant4 Simulation ◽  
Active Materials ◽  
Materials Used ◽  
Physics Experiments

The scintillating properties of active materials used in high energy and particle physics experiments play an important role regarding the performances of both calorimeters and experiments. Two scintillator materials, a scintillating glass and an inorganic crystals, were examined to be used for collider experiments showing good optical and scintillating properties. This paper discusses the simulated performances of two materials of interest assembled in a scintillator-photodetector combination. The computational study was carried out with Geant4 simulation program to determine energy resolutions of such calorimeter with different beam energies and calorimeter sizes.

scholarly journals Programmable combinational logic trigger system for high energy particle physics experiments

1977 ◽  
Vol 140 (3) ◽  
pp. 549-552 ◽  
Author(s):  
E.D. Platner ◽  
A. Etkin ◽  
K.J. Foley ◽  
J.H. Goldman ◽  
W.A. Love ◽  
...  
Keyword(s):  
Particle Physics ◽  
High Energy ◽  
High Energy Particle ◽  
Combinational Logic ◽  
Trigger System ◽  
Energy Particle ◽  
Physics Experiments

scholarly journals DD4hep a community driven detector description for HEP

2020 ◽  
Vol 245 ◽  
pp. 02004
Author(s):  
Frank Gaede ◽  
Markus Frank ◽  
Marko Petric ◽  
Andre Sailer
Keyword(s):  
High Energy Physics ◽  
High Energy ◽  
Particle Collisions ◽  
Detection Techniques ◽  
The Road ◽  
Road Map ◽  
Recent Developments ◽  
Materials Used ◽  
Physics Experiments ◽  
Energy Physics

Detector description is an essential component in simulation, reconstruction and analysis of data resulting from particle collisions in high energy physics experiments and for the detector development studies for future experiments. Current detector description implementations of running experiments are mostly specific implementations. DD4hep [1] is an open source toolkit created in 2012 to serve as a generic detector description solution. The main motivation behind DD4hep is to provide the community with an integrated solution for all these stages and address detector description in a broad sense, including the geometry and the materials used in the device, and additional parameters describing e.g. the detection techniques, constants required for alignment and calibration, description of the readout structures and conditions data. In these proceedings, we will give an overview of the project and discuss recent developments in DD4hep as well as showcase adaptions of the framework by LHC and upcoming accelerator projects together with the road map of future developments.

Lead Tungstate For High Energy Calorimetry

1994 ◽  
Vol 348 ◽  
Author(s):  
I. Dafinei ◽  
E. Auffray ◽  
P. Lecoq ◽  
M. Schneegans
Keyword(s):  
Energy Resolution ◽  
Spectroscopic Data ◽  
High Energy Physics ◽  
Light Yield ◽  
High Energy ◽  
Lead Tungstate ◽  
Low Light ◽  
Physics Experiments ◽  
Energy Physics ◽  
Detector Volume

ABSTRACTThe very large volumes needed to build a crystal calorimeter for High Energy Physics experiments bring cost considerations at the front of the stage. A reasonable compromise between cost and performances must be reached. One possible solution is to look at very dense materials like PbWO4, which will reduce the detector volume, even if the relatively low light yield will impose some limitations to the energy resolution. A review of the different results obtained by the Crystal Clear collaboration will be given for this crystal, including spectroscopic data and radiation damage measurements.

scholarly journals Mining for Gluon Saturation at Colliders

Universe ◽  
2021 ◽  
Vol 7 (8) ◽  
pp. 312 ◽  
Author(s):  
Astrid Morreale ◽  
Farid Salazar
Keyword(s):  
Particle Physics ◽  
High Energy ◽  
Strong Interactions ◽  
Asymptotic Freedom ◽  
High Energies ◽  
The Past ◽  
Color Confinement ◽  
Small X ◽  
Gluon Saturation ◽  
Physics Experiments

Quantum chromodynamics (QCD) is the theory of strong interactions of quarks and gluons collectively called partons, the basic constituents of all nuclear matter. Its non-abelian character manifests in nature in the form of two remarkable properties: color confinement and asymptotic freedom. At high energies, perturbation theory can result in the growth and dominance of very gluon densities at small-x. If left uncontrolled, this growth can result in gluons eternally growing violating a number of mathematical bounds. The resolution to this problem lies by balancing gluon emissions by recombinating gluons at high energies: phenomena of gluon saturation. High energy nuclear and particle physics experiments have spent the past decades quantifying the structure of protons and nuclei in terms of their fundamental constituents confirming predicted extraordinary behavior of matter at extreme density and pressure conditions. In the process they have also measured seemingly unexpected phenomena. We will give a state of the art review of the underlying theoretical and experimental tools and measurements pertinent to gluon saturation physics. We will argue for the need of high energy electron-proton/ion colliders such as the proposed EIC (USA) and LHeC (Europe) to consolidate our knowledge of QCD knowledge in the small x kinematic domains.

Searches for new, massive particles with AMO experiments

2019 ◽  
pp. 29-81
Author(s):  
David DeMille
Keyword(s):  
Dark Matter ◽  
Cp Violation ◽  
Particle Physics ◽  
High Energy ◽  
Higgs Bosons ◽  
Substantial Impact ◽  
Molecular Hamiltonian ◽  
Physics Experiments ◽  
Pedagogical Goal ◽  
New Particles

These lectures aim to explain how certain types of atomic, molecular, and optical physics experiments can have a substantial impact in modern particle physics. A central pedagogical goal is to describe, using only concepts familiar to atomic experimentalists, how new particles can lead to new terms in the atomic or molecular Hamiltonian. Well-motivated examples are discussed, including potential dark matter candidates known as “dark photons”, known and as-yet unknown Higgs bosons, and supersymmetric particles leading to CP violation. The observable effects of new Hamiltonian terms associated with these phenomena are worked out, and state-of-the-art strategies for detecting them, using atomic and molecular experiments, are described for some cases. Remarkably, the sensitivity of atomic/molecular experiments can make it possible to detect new particles even more massive than those that can be created directly at the largest high-energy colliders.

scholarly journals Accelerator Science and Technology in Europe EuCARD 2012

2012 ◽  
Vol 58 (4) ◽  
pp. 327-334 ◽  
Author(s):  
Ryszard S. Romaniuk
Keyword(s):  
Particle Physics ◽  
High Energy Physics ◽  
Science And Technology ◽  
High Energy ◽  
Electronic Systems ◽  
Photonic Networks ◽  
Control Networks ◽  
Multichannel Systems ◽  
Physics Experiments ◽  
Energy Physics

Abstract Accelerator science and technology is one of a key enablers of the developments in the particle physics, photon physics, electronics and photonics, also applications in medicine and industry. The paper presents a digest of the research results in accelerators in Europe, shown during the third annual meeting of the EuCARD - European Coordination of Accelerator Research and Development. EuCARD concerns building of research infrastructure, including advanced photonic and electronic systems for servicing large high energy physics experiments. There are debated a few basic groups of such systems like: measurement - control networks of large extent, multichannel systems for metrological data acquisition, precision photonic networks for reference time distribution.

scholarly journals Evolutionary Algorithms for Tracking Algorithm Parameter Optimization

2021 ◽  
Vol 251 ◽  
pp. 03071
Author(s):  
Peter Chatain ◽  
Rocky Garg ◽  
Lauren Tompkins
Keyword(s):  
Evolutionary Algorithms ◽  
Particle Physics ◽  
High Energy ◽  
Machine Learning Techniques ◽  
High Energy Particle ◽  
Software Framework ◽  
Energy Particle ◽  
High Performing ◽  
Learning Techniques ◽  
Physics Experiments

The reconstruction of charged particle trajectories, known as tracking, is one of the most complex and CPU consuming parts of event processing in high energy particle physics experiments. The most widely used and best performing tracking algorithms require significant geometry-specific tuning of the algorithm parameters to achieve best results. In this paper, we demonstrate the usage of machine learning techniques, particularly evolutionary algorithms, to find high performing configurations for the first step of tracking, called track seeding. We use a track seeding algorithm from the software framework A Common Tracking Software (ACTS). ACTS aims to provide an experimentindependent and framework-independent tracking software designed for modern computing architectures. We show that our optimization algorithms find highly performing configurations in ACTS without hand-tuning. These techniques can be applied to other reconstruction tasks, improving performance and reducing the need for laborious hand-tuning of parameters.

scholarly journals Characteristics of the ATLAS and CMS detectors

2012 ◽  
Vol 370 (1961) ◽  
pp. 892-906 ◽  
Author(s):  
Abraham Seiden
Keyword(s):  
Particle Physics ◽  
Hadron Collider ◽  
High Energy ◽  
New Physics ◽  
Particle Collisions ◽  
Maximum Information ◽  
Background Rejection ◽  
Very High Energy ◽  
Complex Events ◽  
Physics Experiments

The goal for the detection of new physics processes in particle collisions at Large Hadron Collider energies, combined with the broad spectrum of possibilities for how the physics might be manifest, leads to detectors of unprecedented scope and size for particle physics experiments at colliders. The resulting two detectors, ATLAS (A Toroidal LHC ApparatuS) and CMS (compact muon spectrometer), must search for the new physics processes within very complex events arising from the very high-energy collisions. The two experiments share many basic design features—in particular, the need for very selective triggering to weed out the bulk of the uninteresting events; the order in which detector types are arrayed in order to provide maximum information about each event; and the very large angular coverage required to constrain the energy carried by any non-interacting particles. However, within these basic constraints, the detectors are quite different given the different emphases placed on issues such as resolution and background rejection. Both common features and the distinct differences will be presented.

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