Status Of The Cms Pixel Project

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Status Of The Cms Pixel Project

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Author :
language : en
Publisher:
Release Date : 2008

Status Of The Cms Pixel Project written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

The Compact Muon Solenoid Experiment (CMS) will start taking data at the Large Hadron Collider (LHC) in 2008. The closest detector to the interaction point is the silicon pixel detector which is the heart of the tracking system. It consists of three barrel layers and two pixel disks on each side of the interaction point for a total of 66 million channels. Its proximity to the interaction point means there will be very large particle fluences and therefore a radiation-tolerant design is necessary. The pixel detector will be crucial to achieve a good vertex resolution and will play a key role in pattern recognition and track reconstruction. The results from test beam runs prove that the expected performances can be achieved. The detector is currently being assembled and will be ready for insertion into CMS in early 2008. During the assembly phase, a thorough electronic test is being done to check the functionality of each channel to guarantee the performance required to achieve the physics goals. This report will present the final detector design, the status of the production as well as results from test beam runs to validate the expected performance.

At The Leading Edge The Atlas And Cms Lhc Experiments

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Author : Daniel Green
language : en
Publisher: World Scientific
Release Date : 2010-02-10

At The Leading Edge The Atlas And Cms Lhc Experiments written by Daniel Green and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-02-10 with Science categories.

Too often descriptions of detectors focus on the 'what' and not the 'why'. This volume aims to elucidate how the requirements of the physics at the Large Hadron Collider (LHC) define the detector environment. In turn, the detector choices are made to adopt to that environment. The goal of LHC physics is to explore the mechanism for electroweak symmetry breaking. Because of the minuscule cross-sections which need to be explored, 0.1 fb, the LHC needs to provide 100 fb-1/yr, or an instantaneous luminosity of 1034 / (cm2 sec). With a bunch crossing interval of 25 nsec, well matched to detector speeds, there will be 25 events occupying each bunch crossing.Thus the physics requires fast, finely segmented, low noise and radiation resistant detectors which provide redundant measurements of the rarely produced electrons and muons. To achieve those goals, new ground was broken in constructing the A Toroidal LHC ApparatuS (ATLAS) and Compact Muon Solenoid (CMS) detectors in the vertex detectors, tracking systems, calorimetry, strong magnets, muon systems, front end electronics, trigger systems, and in the data acquisition methods used.

Cms Pixel Detector Upgrade And Top Quark Pole Mass Determination

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Author : Simon Spannagel
language : en
Publisher: Springer
Release Date : 2017-08-01

Cms Pixel Detector Upgrade And Top Quark Pole Mass Determination written by Simon Spannagel and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-01 with Science categories.

This thesis addresses two different topics, both vital for implementing modern high-energy physics experiments: detector development and data analysis. Providing a concise introduction to both the standard model of particle physics and the basic principles of semiconductor tracking detectors, it presents the first measurement of the top quark pole mass from the differential cross-section of tt+J events in the dileptonic tt decay channel. The first part focuses on the development and characterization of silicon pixel detectors. To account for the expected increase in luminosity of the Large Hadron Collider (LHC), the pixel detector of the compact muon solenoid (CMS) experiment is replaced by an upgraded detector with new front-end electronics. It presents comprehensive test beam studies conducted to verify the design and quantify the performance of the new front-end in terms of tracking efficiency and spatial resolution. Furthermore, it proposes a new cluster interpolation method, which utilizes the third central moment of the cluster charge distribution to improve the position resolution. The second part of the thesis introduces an alternative measurement of the top quark mass from the normalized differential production cross-sections of dileptonic top quark pair events with an additional jet. The energy measurement is 8TeV. Using theoretical predictions at next-to-leading order in perturbative Quantum Chromodynamics (QCD), the top quark pole mass is determined using a template fit method.

Annual Report Of The European Organization For Nuclear Research

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Author : European Organization for Nuclear Research
language : en
Publisher:
Release Date : 2003

Annual Report Of The European Organization For Nuclear Research written by European Organization for Nuclear Research and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Nuclear physics categories.

Advanced Technology And Particle Physics Proceedings Of The 7th International Conference On Icatpp 7

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Author : Michele Barone
language : en
Publisher: World Scientific
Release Date : 2002-11-28

Advanced Technology And Particle Physics Proceedings Of The 7th International Conference On Icatpp 7 written by Michele 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 2002-11-28 with Science categories.

This book features up-to-date technology applications to radiation detection. It synthesises several techniques of and approaches to radiation detection, covering a wide range of applications and addressing a large audience of experts and students.Many of the talks are in fact reviews of particular topics often not covered in standard books and other conferences, for instance, the medical physics section. To present these medical physics talks is crucial, since a large fraction of the community in medical physics are from the particle physics community. The same feature is true for astroparticle and space physics, which are relatively new fields.This book is unique in its scope. Except for IEEE, there is no other conference in the world that presents such a wide coverage of advanced technology applied to particle physics. However, unlike IEEE, more room is made in the book for reviews and general talks.

Proceedings Of The 7th International Conference On Advanced Technology Particle Physics

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Author : Maura Barone
language : en
Publisher: World Scientific
Release Date : 2002

Proceedings Of The 7th International Conference On Advanced Technology Particle Physics 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 2002 with Science categories.

This book features up-to-date technology applications to radiation detection. It synthesises several techniques of and approaches to radiation detection, covering a wide range of applications and addressing a large audience of experts and students. Many of the talks are in fact reviews of particular topics often not covered in standard books and other conferences, for instance, the medical physics section. To present these medical physics talks is crucial, since a large fraction of the community in medical physics are from the particle physics community. The same feature is true for astroparticle and space physics, which are relatively new fields. This book is unique in its scope. Except for IEEE, there is no other conference in the world that presents such a wide coverage of advanced technology applied to particle physics. However, unlike IEEE, more room is made in the book for reviews and general talks.

Development Of A New Tracker For The Cms Upgrade Phase 2 And Study Of The Hl Lhc Physics Reach

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Author : Martin Delcourt
language : en
Publisher: Presses universitaires de Louvain
Release Date : 2020-11-26

Development Of A New Tracker For The Cms Upgrade Phase 2 And Study Of The Hl Lhc Physics Reach written by Martin Delcourt and has been published by Presses universitaires de Louvain this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-26 with Science categories.

The standard model of particle physics provides a coherent description of highenergy physics processes and has been hugely successful in providing experimental predictions. Among its long list of achievements, the most significant is arguably that of the discovery of the Higgs boson half a century after being theorised, providing the last cornerstone needed for the standard model to become fully consistent. Despite huge successes, the standard model still suffers from major shortcomings. On the path leading towards a better understanding of particle physics, an in-depth study of the Higgs boson is key. This relentless work of characterising the properties of the Higgs boson is currently being undertaken at the Large Hadron Collider, where high-energy proton collisions are being recorded by dedicated detectors, providing a continuous improvement to the understanding of the standard model. Amid tremendous achievements, some processes, remain too weak to be detected with the current installations. One such measurement is the combined production of two Higgs bosons allowing for a direct handle on the Higgs self-coupling parameter of the standard model. To maximise the physics reach of the collider, it will be subjected to a major upgrade, allowing for a strong increase in luminosity. Such a dramatic change will bring major challenges to the experiments recording these collisions and upgrades are required if they are to maintain their outstanding performance. This thesis explores the upgrade of the CMS silicon strip detector, centred around the in-beam characterisation of detector module prototypes and discusses the physics reach of the upgraded machine, with an emphasis on Higgs boson pair production in the bbWW(l) final state.

Astroparticle Particle Space Physics And Detectors For Physics Applications

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Author : S. Giani
language : en
Publisher: World Scientific
Release Date : 2012

Astroparticle Particle Space Physics And Detectors For Physics Applications written by S. Giani and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Science categories.

The exploration of the subnuclear world is done through increasingly complex experiments covering a wide range of energy and performed in a large variety of environments ranging from particle accelerators, underground detectors to satellites and the space laboratory. Among recent advances one has to indicate, for instance, first results obtained from space and LHC experiments and progress done in preparation of the latter experiments upgrades, including plans for the LHC machine upgrade. The achievement of these research programs calls for novel techniques, new materials and instrumentation to be used in detectors, often of large scale. Therefore, fundamental physics is at the forefront of technological advance and also leads to many applications. Among these, medical applications have a particular importance due to health and social benefits they bring to the public. Sample Chapter(s). Science highlights from the Fenni Observatory (5,046 KB). Contents: Space Experiments and Cosmic Rays Observations; Production and Propagation of Cosmic Rays in the Galaxy and Heliosphere; Dark Matter Searches, Underwater and Underground Experiments; High Energy Physics Experiments; Tracker and Position Sensitive Detectors; Calorimetry; Advanced Detectors, Particles Identication, Devices and Materials in Radiation; Broader Impact Activities, Treatments and Software Application. Readership: Post-graduate students, researchers and engineers.

Cern

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Author :
language : en
Publisher:
Release Date : 2009

Cern written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Nuclear physics categories.

Astroparticle Particle Space Physics And Detectors For Physics Applications Proceedings Of The 13th Icatpp Conference

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Author : Randal C Ruchti
language : en
Publisher: World Scientific
Release Date : 2012-08-02

Astroparticle Particle Space Physics And Detectors For Physics Applications Proceedings Of The 13th Icatpp Conference written by Randal C Ruchti and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08-02 with Science categories.

The exploration of the subnuclear world is done through increasingly complex experiments covering a wide range of energy and performed in a large variety of environments ranging from particle accelerators, underground detectors to satellites and the space laboratory. Among recent advances one has to indicate, for instance, first results obtained from space and LHC experiments and progress done in preparation of the latter experiments upgrades, including plans for the LHC machine upgrade. The achievement of these research programs calls for novel techniques, new materials and instrumentation to be used in detectors, often of large scale. Therefore, fundamental physics is at the forefront of technological advance and also leads to many applications. Among these, medical applications have a particular importance due to health and social benefits they bring to the public.