Beam Test Calorimeter Prototypes For The Cms Calorimeter Endcap Upgrade

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Beam Test Calorimeter Prototypes For The Cms Calorimeter Endcap Upgrade

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Author : Thorben Quast
language : en
Publisher: Springer Nature
Release Date : 2022-01-24

Beam Test Calorimeter Prototypes For The Cms Calorimeter Endcap Upgrade written by Thorben Quast and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-01-24 with Science categories.

​In order to cope with the increased radiation level and the challenging pile-up conditions at High Luminosity-LHC, the CMS collaboration will replace its current calorimeter endcaps with the High Granularity Calorimeter (HGCAL) in the mid 2020s. This dissertation addresses two important topics related to the preparation of the HGCAL upgrade: experimental validation of its silicon- based design and fast simulation of its data. Beam tests at the DESY (Hamburg) and the CERN SPS beam test facilities in 2018 have been the basis for the design validation. The associated experimental infrastructure, the algorithms deployed in the reconstruction of the recorded data, as well as the respective analyses are reported in this thesis: First, core components of the silicon-based prototype modules are characterised and it is demonstrated that the assembled modules are functional. In particular, their efficiency to detect minimum ionising particles (MIPs) traversing the silicon sensors is found to be more than 98% for most of the modules. No indication of charge sharing between the silicon pads is observed. Subsequently, the energy response is calibrated in situ using the beam test data. Equalisation of the different responses among the readout channels is achieved with MIPs hereby deploying the HGCAL prototype as a MIP-tracking device. The relative variation of the inferred calibration constants amounts to 3% for channels on the same readout chip. The calibration of the time-of-arrival information is performed with an external time reference detector. With it, timing resolutions of single cells including the full prototype readout chain around 60ps in the asymptotic high energy limit are obtained. The calorimetric performance of the HGCAL prototype is validated with particle showers induced by incident positrons and charged pions. For electromagnetic showers, the constant term in the relative energy resolution is measured to be (0.52± 0.08) %, whereas the stochastic term amounts to (22.2 ± 0.3)% √GeV. This result is in good agreement with the calorimeter simulation with GEANT4. The prototype’s positioning resolution of the shower axis, after subtracting the contribution from the delay wire chambers in the beam line used as reference, is found to be below 0.4 mm at 300 GeV. At the same energy, the angular resolution in the reconstruction of the electromagnetic shower axis in this prototype is measured to be less than 5mrad. The analysis of the hadronic showers in this thesis makes use state-of-the- art machine-learning methods that exploit the calorimeter’s granularity. It is indicated that the energy resolution may be improved using software compensation and also that the separation of electromagnetic and charged pion-induced showers in the calorimeter may benefit from such methods. The measurements of the hadronic showers are adequately reproduced by GEANT4 simulation. Altogether, the obtained results from the analysis of the beam test data in this thesis are in agreement with the full functionality of the silicon-based HGCAL design. The final part of this thesis provides a proof of principle that generative modelling based on deep neural networks in conjunction with the Wasserstein distance is a suitable approach for the fast simulation of HGCAL data: Instead of sequential simulation, a deep neural network-based generative model generates all calorimeter energy depositions simultaneously. This genera t or network is optimised throu gh an adversarial training process using a critic network guided by the Wasserstein distance. The developed framework in this thesis is applied to both GEANT4- simulated electromagnetic showers and to positron data from the beam tests. Ultimately, this fast simulation approach is up to four orders of magnitude faster than sequential simulation with GEANT4. It is able to produce realistic calorimeter energy depositions from electromagnetic showers, incorporating their fluctuations and correlations when converted into typical calorimeter observables.

Response Of The High Granularity Calorimeter Hgcal And Characterisation Of The Higgs Boson

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Author : Matteo Bonanomi
language : en
Publisher: Springer Nature
Release Date : 2023-04-21

Response Of The High Granularity Calorimeter Hgcal And Characterisation Of The Higgs Boson written by Matteo Bonanomi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-21 with Science categories.

This book highlights the most complete characterization of the Higgs boson properties performed to date in the "golden channel," i.e., decay into a pair of Z bosons which subsequently decay into four leptons. The data collected by the CMS experiment in the so-called Run-II data-taking period of the LHC are used to produce an extensive set of results that test in detail the predictions of the Standard Model. Given the remarkable predictive power of the SM when including the Higgs boson, possible new physics will require even more extensive studies at higher statistics. A massive upgrade of the detectors is necessary to maintain the current physics performance in the harsh environment of the High-Luminosity LHC (HL-LHC) project, expected to start by the end of 2027. The CMS Collaboration will replace the current endcap calorimeters with a High Granularity Calorimeter (HGCAL). The HGCAL will be the very first large-scale silicon-based imaging calorimeter ever employed in a high-energy physics experiment. This book presents the results of the analysis of the test beam data collected with the first large-scale prototype of the HGCAL. The results of this analysis are used to corroborate the final design of the HGCAL and its nominal physics performance expected for the HL-LHC operations.

Deep Learning For Physics Research

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Author : Martin Erdmann
language : en
Publisher: World Scientific
Release Date : 2021-06-25

Deep Learning For Physics Research written by Martin Erdmann and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-25 with Science categories.

A core principle of physics is knowledge gained from data. Thus, deep learning has instantly entered physics and may become a new paradigm in basic and applied research.This textbook addresses physics students and physicists who want to understand what deep learning actually means, and what is the potential for their own scientific projects. Being familiar with linear algebra and parameter optimization is sufficient to jump-start deep learning. Adopting a pragmatic approach, basic and advanced applications in physics research are described. Also offered are simple hands-on exercises for implementing deep networks for which python code and training data can be downloaded.

Proceedings Of International Conference On Technology And Instrumentation In Particle Physics 2017

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Author : Zhen-An Liu
language : en
Publisher: Springer
Release Date : 2018-08-07

Proceedings Of International Conference On Technology And Instrumentation In Particle Physics 2017 written by Zhen-An Liu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-07 with Technology & Engineering categories.

These two volumes present the proceedings of the International Conference on Technology and Instrumentation in Particle Physics 2017 (TIPP2017), which was held in Beijing, China from 22 to 26 May 2017. Gathering selected articles on the basis of their quality and originality, it highlights the latest developments and research trends in detectors and instrumentation for all branches of particle physics, particle astrophysics and closely related fields. This is the second volume, and focuses on the main themes Astrophysics and space instrumentation, Front-end electronics and fast data transmission, Trigger and data acquisition systems, Machine detectors, Interfaces and beam instrumentation, Backend readout structures and embedded systems, Medical imaging, and Security & other applications. The TIPP2017 is the fourth in a series of international conferences on detectors and instrumentation, held under the auspices of the International Union of Pure and Applied Physics (IUPAP). The event brings together experts from the scientific and industrial communities to discuss their current efforts and plan for the future. The conference’s aim is to provide a stimulating atmosphere for scientists and engineers from around the world.

Astroparticle Particle And Space Physics Detectors And Medical Physics Applications

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Author : Maura Barone
language : en
Publisher: World Scientific
Release Date : 2004

Astroparticle Particle And Space Physics Detectors And Medical Physics Applications written by Maura Barone and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Psychology categories.

Astroparticle and space physics -- Calorimetry -- High energy physics -- Medical applications -- New detectors and particle identification -- Open session on experimental results -- Radiation damage -- Tracker

Advances In Silicon Dioxide Research And Application 2011 Edition

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Author :
language : en
Publisher: ScholarlyEditions
Release Date : 2012-01-09

Advances In Silicon Dioxide Research And Application 2011 Edition written by and has been published by ScholarlyEditions this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-09 with Science categories.

Advances in Silicon Dioxide Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Silicon Dioxide. The editors have built Advances in Silicon Dioxide Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Silicon Dioxide in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Silicon Dioxide Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Calorimetry In Particle Physics

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Author : Ren-Yuan Zhu
language : en
Publisher: World Scientific
Release Date : 2002

Calorimetry In Particle Physics written by Ren-Yuan Zhu and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Science categories.

The International Conference on Calorimetry in Particle Physics has become the major forum for state-of-the-art developments of calorimetry techniques. The tenth conference was attended by about 150 physicists from 20 countries and covered all aspects of calorimetric particle detection and measurements, with emphasis on high energy physics experiments as well as experiments in nuclear physics and astrophysics. The proceedings contain three parts: introductory papers, contributed papers and a summary. The introductory papers start with a historical review of the development of calorimetry technology, and continue with overviews of the current status of calorimetry in high energy physics and astrophysics, which are followed by discussions on calorimetry in future accelerator facilities, such as linear colliders and the Super B Factory. A "hot" technology regarding the "energy flow concept" is also dealt with.

Proceedings Of The Tenth International Conference On Calorimetry In Particle Physics

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Author : Ren-yuan Zhu
language : en
Publisher: World Scientific
Release Date : 2003-01-16

Proceedings Of The Tenth International Conference On Calorimetry In Particle Physics written by Ren-yuan Zhu and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-01-16 with Science categories.

Annotation The International Conference on Calorimetry in Particle Physics has become the major forum for state-of-the-art developments of calorimetry techniques. The tenth conference was attended by about 150 physicists from 20 countries and covered all aspects of calorimetric particle detection and measurements, with emphasis on high energy physics experiments as well as experiments in nuclear physics and astrophysics.The proceedings contain three parts: introductory papers, contributed papers and a summary. The introductory papers start with a historical review of the development of calorimetry technology, and continue with overviews of the current status of calorimetry in high energy physics and astrophysics, which are followed by discussions on calorimetry in future accelerator facilities, such as linear colliders and the Super B Factory. A "hot" technology regarding the "energy flow concept" is also dealt with

Calorimetry In Particle Physics Proceedings Of The Tenth International Conference Calor02

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Author : Ren-yuan Zhu
language : en
Publisher: World Scientific
Release Date : 2003-01-16

Calorimetry In Particle Physics Proceedings Of The Tenth International Conference Calor02 written by Ren-yuan Zhu and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-01-16 with Science categories.

The International Conference on Calorimetry in Particle Physics is the major forum for the state-of-the-art developments of calorimetry technologies. The Tenth Conference was attended by more than 150 physicists from 16 countries and covered all aspects of calorimetric particle detection and measurements, with emphasis on high energy physics and astrophysics experiments.The proceedings contain three parts: introductory papers, contributed papers and perspective papers. The introduction starts with a historical review of calorimetry developments, and continues with overviews of the current status of calorimetry in high energy physics and astrophysics, which are followed by discussions on calorimetry in future accelerator facilities, such as linear colliders and the Super B factories. A “hot” technology regarding the “energy flow concept” is also discussed. The contributed papers are organized in 11 sessions. The perspective papers summarize the physics and limitation of calorimeter applications in high energy physics, astrophysics and medical industries.

Hep2023

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Author : John Strologas
language : en
Publisher: Springer Nature
Release Date : 2025-07-07

Hep2023 written by John Strologas and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-07-07 with Science categories.

The proceedings of HEP 2023 - 40th Conference on Recent Developments in High Energy Physics and Cosmology invites scholars and experts in the fields of High Energy Physics, involved both in experimental and theoretical research, from various universities and institutions. The conference focuses on the more recent advancements in topics such as 'LHC experimental results', 'Astroparticle Physics', 'Cosmology', 'String Theory', 'Dark Matter' and others. The main goal of the conference is to present the related research work of the Greek scientific community, to promote the cooperation of experts and scholars in the field, to share the research achievements both on a national and international level. All accepted speakers were eligible to contribute to the Conference Proceedings on a voluntary basis. The HEP2023 Conference is organized by the Hellenic Society for the Study of High Energy Physics and is hosted by the University of Ioannina (5-7 April 2023).