Measurement of the Top Quark Mass in the Dilepton Final State Using the Matrix Element Method
Measurement of the Top Quark Mass in the Dilepton Final State Using the Matrix Element Method

Author: Alexander Grohsjean

Publisher: Springer Science & Business Media

Published: 2010-10-01

Total Pages: 155

ISBN-13: 364214070X

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The main pacemakers of scienti?c research are curiosity, ingenuity, and a pinch of persistence. Equipped with these characteristics a young researcher will be s- cessful in pushing scienti?c discoveries. And there is still a lot to discover and to understand. In the course of understanding the origin and structure of matter it is now known that all matter is made up of six types of quarks. Each of these carry a different mass. But neither are the particular mass values understood nor is it known why elementary particles carry mass at all. One could perhaps accept some small generic mass value for every quark, but nature has decided differently. Two quarks are extremely light, three more have a somewhat typical mass value, but one quark is extremely massive. It is the top quark, the heaviest quark and even the heaviest elementary particle that we know, carrying a mass as large as the mass of three iron nuclei. Even though there exists no explanation of why different particle types carry certain masses, the internal consistency of the currently best theory—the standard model of particle physics—yields a relation between the masses of the top quark, the so-called W boson, and the yet unobserved Higgs particle. Therefore, when one assumes validity of the model, it is even possible to take precise measurements of the top quark mass to predict the mass of the Higgs (and potentially other yet unobserved) particles.

Physics at the Large Hadron Collider
Physics at the Large Hadron Collider

Author: Amitava Datta

Publisher: Springer Science & Business Media

Published: 2010-05-30

Total Pages: 260

ISBN-13: 8184892950

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In an epoch when particle physics is awaiting a major step forward, the Large Hydron Collider (LHC) at CERN, Geneva will soon be operational. It will collide a beam of high energy protons with another similar beam circulation in the same 27 km tunnel but in the opposite direction, resulting in the production of many elementary particles some never created in the laboratory before. It is widely expected that the LHC will discover the Higgs boson, the particle which supposedly lends masses to all other fundamental particles. In addition, the question as to whether there is some new law of physics at such high energy is likely to be answered through this experiment. The present volume contains a collection of articles written by international experts, both theoreticians and experimentalists, from India and abroad, which aims to acquaint a non-specialist with some basic issues related to the LHC. At the same time, it is expected to be a useful, rudimentary companion of introductory exposition and technical expertise alike, and it is hoped to become unique in its kind. The fact that there is substantial Indian involvement in the entire LHC endeavour, at all levels including fabrication, physics analysis procedures as well as theoretical studies, is also amply brought out in the collection.

Lepton-photon Interactions, Lp'97 - Proceedings Of The Xviii International Symposium
Lepton-photon Interactions, Lp'97 - Proceedings Of The Xviii International Symposium

Author: Albert De Roeck

Publisher: World Scientific

Published: 1998-07-22

Total Pages: 778

ISBN-13: 9814545120

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This book constitutes the proceedings of the XVIII International Symposium on Lepton-Photon Interactions. It contains 30 review papers on the latest developments by experts in the field. The subjects cover the structure of photons and hadrons, progress in QCD and diffraction, heavy quark (c, b, t) physics, electroweak precision measurements and tests, CP violation, neutrino physics, searches for new particles and phenomena, cosmology, progress in theory and physics at future colliders.

The Particle Century
The Particle Century

Author: G Fraser

Publisher: CRC Press

Published: 1998-01-01

Total Pages: 282

ISBN-13: 9781420050332

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From the first attempts to split the atom to the discovery of the top quark, the 20th century has witnessed a revolution in basic physics. Probing successively smaller constituents of matter has also revealed the conditions present at the time of the Big Bang. In a series of essays by scientists who have been closely involved in this exciting research, The Particle Century describes the unprecedented advances in our understanding of the universe. The book covers major historical developments as well as current advances, including early accelerator physics, the rise of the Standard Model, new comprehension of the big bang theory, and the cutting edge of today's investigations. These essays add novel insight into the continuing efforts to unravel the deepest secrets of nature.

From Particles To The Universe - Proceedings Of The Fifteenth Lake Louise Winter Institute
From Particles To The Universe - Proceedings Of The Fifteenth Lake Louise Winter Institute

Author: Alan Astbury

Publisher: World Scientific

Published: 2001-05-11

Total Pages: 441

ISBN-13: 9814492299

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The Lake Louise Winter Institute is held annually to explore recent trends in physics in an informal setting. Pedagogical and review lectures are presented by invited experts. A topical workshop is held in conjunction with the Institute, with contributed presentations by participants. It concentrates on areas related to the invited lectures. Participants are encouraged to present material that includes recent developments in experimental and theoretical physics.

From Particles to the Universe
From Particles to the Universe

Author: A. Astbury

Publisher: World Scientific

Published: 2001

Total Pages: 441

ISBN-13: 9810244371

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The Lake Louise Winter Institute is held annually to explore recent trends in physics in an informal setting. Pedagogical and review lectures are presented by invited experts. A topical workshop is held in conjunction with the Institute, with contributed presentations by participants. It concentrates on areas related to the invited lectures. Participants are encouraged to present material that includes recent developments in experimental and theoretical physics.

Fundamental Interactions
Fundamental Interactions

Author: A. Astbury

Publisher: World Scientific

Published: 2009

Total Pages: 429

ISBN-13: 9814280941

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This book contains pedagogical lectures on both theoretical and experimental particle physics, cosmology, and atomic trap physics. Numerous additional contributions provide up-to-date information on new experimental results from accelerators, underground laboratories, and nuclear astrophysics. This combination of pedagogical talks and topical short discussions presents a comprehensive amount of information and latest developments to researchers. Sample Chapter(s). Chapter 1: New Physics and the LHC (9,214 KB). Contents: New Physics and the LHC (G Altarelli); Very High Energy Cosmic Rays: Results from the Pierre Auger Observatory (C E Covault); Neutrinos at Lake Louise (S Davidson); Physics Impact of the Tevatron (D C O''Neil); Cosmology and the LHC (V Rubakov); CMK Angle Measurements from BABAR (J M Anderson); An Overview of Top Quark Analyses from the CMS Collaboration (J Andrea); Heavy Quark Production at HERA and Heavy Quark Contributions to the Proton Structure Function (D Bartsch); ATLAS Commissioning and Physics with Early Data (P J Bell); Search for Heavy Stable Charged Particles at CMS (J Chen); A High-Sensitivity Search for Charged Lepton Flavor Violation at Fermilab (E C Dukes); Prospects for CP Violation Studies at LHCb (V V Gligorov); Measurements of a 3 () at Belle (Y Horii); High P T Jets and Photons at Dy (Z Hubacek); SUSY Search at ATLAS (Y Kataoka); Neutrino Physics with the IceCube Detector (J Kirkyluk); Determination of the Strong Phase in D 0 OaAE K + C - Using Quantum-Correlated Measurements (A Lincoln); Results on Top Quark Physics at Dy (Y Peters); Quarkonium Production and Polarisation with Early Data at ATLAS (D D Price); and other papers. Readership: Graduate students, researchers and academics in high energy physics (HEP), astrophysics and atomic physics."