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Books > Science & Mathematics > Physics > Relativity physics
Relativistic cosmology has in recent years become one of the most
exciting and active branches of current research. In conference
after conference the view is expressed that cosmology today is
where particle physics was forty years ago, with major discoveries
just waiting to happen. Also gravitational wave detectors,
presently under construction or in the testing phase, promise to
open up an entirely novel field of physics.
It is to take into account such recent developments, as well as to
improve the basic text, that this second edition has been
undertaken. The most affected is the last part on cosmology, but
there are smaller additions, corrections, and additional exercises
throughout.
The books basic purpose is to make relativity come alive
conceptually. Hence the emphasis on the foundations and the logical
subtleties rather than on the mathematics or the detailed
experiments per se. Aided by some 300 exercises, the book promotes
a deep understanding and the confidence to tackle any fundamental
relativistic problem.
This textbook develops Special Relativity in a systematic way and
offers problems with detailed solutions to empower students to gain
a real understanding of this core subject in physics. This new
edition has been thoroughly updated and has new sections on
relativistic fluids, relativistic kinematics and on
four-acceleration. The problems and solution section has been
significantly expanded and short history sections have been
included throughout the book. The approach is structural in the
sense that it develops Special Relativity in Minkowski space
following the parallel steps as the development of Newtonian
Physics in Euclidian space. A second characteristic of the book is
that it discusses the mathematics of the theory independently of
the physical principles, so that the reader will appreciate their
role in the development of the physical theory. The book is
intended to be used both as a textbook for an advanced
undergraduate teaching course in Special Relativity but also as a
reference book for the future.
This thesis describes the use of the angular distributions of the
most energetic dijets in data recorded by the ATLAS experiment, at
CERN's Large Hadron Collider (LHC), the goal of which is to search
for phenomena beyond what the current theory of Particle Physics
(the Standard Model) can describe. It also describes the deployment
of the method used in ATLAS to correct for the distortions in jet
energy measurements caused by additional proton-proton
interactions. The thesis provides a detailed introduction to
understanding jets and dijet searches at the LHC. The experiments
were carried out at two record collider centre-of-mass energies (8
and 13 TeV), probing smaller distances than ever before. Across a
broad momentum transfer range, the proton constituents (quarks and
gluons) display the same kinematical behaviour, and thus still
appear to be point-like. Data are compared to predictions corrected
for next-to-leading order quantum chromodynamics (NLO QCD) as well
as electroweak effects, demonstrating excellent agreement. The
results are subsequently used to set limits on parameters of
suggested theoretical extensions to the Standard Model (SM),
including the effective coupling and mass of a Dark Matter
mediator.
This book is intended for anyone who is interested in a real
physical image and order of the physical world surrounding us.In
this book Einstein's destruction of physics is documented. The
physical reality of gravity, inertial forces, mass, time,
double-slit experiment is debunked. It shows that Quarks and Higgs
bosons do not exist and that all elementary particles, all rigid
matter and all force fields in the Universe are created from
compression of ether. It show that Einstein, after 1916 became a
more enthusiastic advocate of the proven existence of the ether
than supporters of the ether before 1905.The aim of this book is to
return physics from its way of metaphysics in the 20th century on
the way of the physical reality in the 21st century. This second
edition of this book was augmented by twenty pages compared to its
first edition. After this augmentation it appears that the
argumentation about the unacceptability of the ill-founded physical
theories of the 20th century represents a compact corpus.
Einstein's general theory of relativity - currently our best theory
of gravity - is important not only to specialists, but to a much
wider group of physicists. This short textbook on general
relativity and gravitation offers students glimpses of the vast
landscape of science connected to general relativity. It
incorporates some of the latest research in the field. The book is
aimed at readers with a broad range of interests in physics, from
cosmology, to gravitational radiation, to high energy physics, to
condensed matter theory. The pedagogical approach is "physics
first": readers move very quickly to the calculation of
observational predictions, and only return to the mathematical
foundations after the physics is established. In addition to the
"standard" topics covered by most introductory textbooks, it
contains short introductions to more advanced topics: for instance,
why field equations are second order, how to treat gravitational
energy, and what is required for a Hamiltonian formulation of
general relativity. A concluding chapter discusses directions for
further study, from mathematical relativity, to experimental tests,
to quantum gravity. This is an introductory text, but it has also
been written as a jumping-off point for readers who plan to study
more specialized topics.
Our understanding of the physical universe underwent a revolution
in the early twentieth century - evolving from the classical
physics of Newton, Galileo, and Maxwell to the modern physics of
relativity and quantum mechanics. The dominant figure in this
revolutionary change was Albert Einstein. In a single year, 1905,
Einstein produced breakthrough works in three areas of physics: on
the size and the effects of atoms; on the quantization of the
electromagnetic field; and on the special theory of relativity. In
1916 he produced a fourth breakthrough work, the general theory of
relativity. A Student's Guide to Einstein's Major Papers focuses on
Einstein's contributions, setting his major works into their
historical context, and then takes the reader through the details
of each paper, including the mathematics. This book helps the
reader appreciate the simplicity and insightfulness of Einstein's
ideas and how revolutionary his work was, and locate it in the
evolution of scientific thought begun by the ancient Greek natural
philosophers.
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