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Books > Science & Mathematics > Physics > Nuclear structure physics
This book, a completely new and different version from the old
'Serber Says' published forty years ago, is intended for graduate
students in the field of nuclear physics. Written with a
pedagogical aim it emphasizes topics of basic interest not only in
nuclear physics, but also other branches of physics such as atomic
physics, solid state physics and nuclear engineering.
Describing the history of CERN from its inception in the late 40's
up to the mid-60's. The authors have divided these 17-18 years into
roughly two successive periods. Volume I deals with the birth and
official establishment of the organization and thus covers the
years 1949-1954, while Volume II studies the life of the European
laboratory during the first twelve years of its existence.
Thermal processes are ubiquitous and an understanding of thermal
phenomena is essential for a complete description of the physics of
nanoparticles, both for the purpose of modeling the dynamics of the
particles and for the correct interpretation of experimental
data.
This book has the twofold aim to present coherently the relevant
results coming from the recent scientific literature and to guide
the readers through the process of deriving results, enabling them
to explore the limits of the mathematical approximations and test
the power of the method. The book is focused on the fundamental
properties of nanosystems in the gas phase. For this reason there
is a strong emphasis on microcanonical physics. Each chapter is
enrichedwith exercises and 3 Appendices provide additional useful
materials."
http://www.worldscientific.com/worldscibooks/10.1142/0111
Neutron radiography has in recent years emerged as a useful and
complementary technology for radiation diagnosis. It is now
routinely used in industrial quality assurance and in support of
selected research and developmental activities. Conferences are
held on the subject, pertinent handbooks exist, and technical
papers appear regularly reporting on new developments. While
neutron radiography has indeed passed through the transition from a
scientific curiosity to technological relevance, it is a sign of
its continuing dynamic evolution that little material has appeared
which provides an integrated mathematical and physical analysis of
the subject possessing both an instructional as well as reference
function. It is our hope that this monograph will fill this need.
The distinctiveness of neutron radiography rests on the unique
interactions between neutrons and nuclei. This leads to some
special relationships between the material and geometrical
properties of an object and the neutron radiographic image. The
evolution of a technical discipline demands that specific
conceptual constructs be developed and their mathematical
representations examined and compared with controlled experiments.
Experience has convinced us that a particular and substantial body
of knowledge has accumulated endowing neutron radiography with the
essential foundations of a unique mathematical and physical
science. Our scientific and professional involvement in neutron
radiography began some 15 years ago when the senior author (A.A.H.)
found himself with convenient access to the McMaster University
Nuclear Reactor and research support from the Government of Canada.
The motivations, goals and general culture of theoretical physics
and mathematics are different. Most practitioners of either
discipline have no necessity for most of the time to keep abreast
of the latest developments in the other. However on occasion newly
developed mathematical concepts become relevant in theoretical
physics and the less rigorous theoretical physics framework may
prove valuable in understanding and suggesting new theorems and
approaches in pure mathematics. Such interdis ciplinary successes
invariably cause much rejoicing, as over a prodigal son returned.
In recent years the framework provided by quantum field theory and
functional in tegrals, developed over half a century in theoretical
physics, have proved a fertile soil for developments in low
dimensional topology and especially knot theory. Given this
background it was particularly pleasing that NATO was able to
generously sup port an Advanced Research Workshop to be held in
Cambridge, England from 6th to 12th September 1992 with the title
Low Dimensional Topology and Quantum Field Theory. Although
independently organised this overlapped as far as some speak ers
were concerned with a longer term programme with the same title
organised by Professor M Green, Professor E Corrigan and Dr R
Lickorish. The contents of this proceedings of the workshop
demonstrate the breadth of topics now of interest on the interface
between theoretical physics and mathematics as well as the
sophistication of the mathematical tools required in current
theoretical physics."
More than 50 years ago, in 1934, Chadwick and Goldhaber (ChG 34)
published a paper entitled "A 'Nuclear Photo-effect' Disintegration
of the Diplon by -y-Rays."l in the introduction: They noted "By
analogy with the excitation and ionisation of atoms by light, one
might expect that any complex nucleus should be excited or
'ionised', that is, disintegrated, by -y-rays of suitable energy,"
and furthermore: "Heavy hydrogen was chosen as the element first to
be examined, because the diplon has a small mass defect and also
because it is the simplest of all nuclear systems and its
properties are as important in nuclear theory as the hydrogen is in
atomic theory." Almost at the same time, in 1935, the first
theoretical paper on the photodisinte gration of the deuteron
entitled "Quantum theory of the diplon" by Bethe and Peierls (BeP
35) appeared. It is not without significance that these two papers
mark the be ginning of photonuclear physics in general and
emphasize in particular the special role the two-body system has
played in nuclear physics since then and still plays. A steady flow
of experimental and theoretical papers on deuteron photo
disintegration and its inverse reaction, n-p capture, shows the
continuing interest in this fundamental process (see fig. 1.1)."
The papers collected in this volume have been presented during a
workshop on "Electron-Atom and Molecule Collisions" held at the
Centre for Interdisciplinary Studies of the University of Bielefeld
in May 1980. This workshop, part of a larger program concerned with
the "Properties and Reactions of Isolated Molecules and Atoms,"
focused on the theory and computational techniques for the quanti
tative description of electron scattering phenomena. With the
advances which have been made in the accurate quantum mechanical
characterisation of bound states of atoms and molecules, the more
complicated description of the unbound systems and resonances
important in electron collision processes has matured too. As expli
cated in detail in the articles of this volume, the theory for the
quantitative explanation of elastic and inelastic electron molecule
collisions, of photo- and multiple photon ionization and even for
electron impact ionization is well developed in a form which lends
itself to a complete quantitative ab initio interpretation and pre
diction of the observable effects. Many of the experiences gained
and the techniques which have evolved over the years in the com
putational characterization of bound states have become an
essential basis for this development. To be sure, much needs to be
done before we have a complete and detailed theoretical
understanding of the known collisional processes and of the
phenomena and effects, which may still be un covered with the
continuing refinement of the experimental tech niques."
The work presented in this book is a major step towards
understanding and eventually suppressing background in the direct
search for dark matter particles scattering off germanium
detectors. Although the flux of cosmic muons is reduced by many
orders of magnitude in underground laboratories, the remaining
energetic muons induce neutrons through various processes, neutrons
that can potentially mimic a dark matter signal. This thesis
describes the measurement of muon-induced neutrons over more than 3
years in the Modane underground laboratory. The data are
complemented by a thorough modeling of the neutron signal using the
GEANT4 simulation package, demonstrating the appropriateness of
this tool to model these rare processes. As a result, a precise
neutron production yield can be presented. Thus, future underground
experiments will be able to reliably model the expected rate of
muon-induced neutrons, making it possible to develop the necessary
shielding concept to suppress this background component.
Introducing the basic theory and recent advances in QCD, this book reviews the historical development of the subject up to the present day, covering aspects of strong interactions such as the quark and parton models, the notion of colors and the S-matrix approach. The author then discusses QCD and QED as gauge theories, renormalization procedures, QCD hard processes in hadron collisions, hadron jets, and the different non-perturbative aspects of QCD.
By providing the reader with a foundational background in high spin
nuclear structure physics and exploring exciting current
discoveries in the field, this book presents new phenomena in a
clear and compelling way. The quest for achieving the highest spin
states has resulted in some remarkable successes which this
monograph will address in comprehensive detail. The text covers an
array of pertinent subject matter, including the rotational
alignment and bandcrossings, magnetic rotation, triaxial strong
deformation and wobbling motion and chirality in nuclei. This book
offers a clearly-written and up-to-date treatment of the topics
covered. The prerequisites for a proper appreciation are courses in
nuclear physics and nuclear models and measurement techniques of
observables like gamma-ray energies, intensities, multi-fold
coincidences, angular correlations or distributions, linear
polarization, internal conversion coefficients, short lifetime
(pico-second range) of excited states etc. and instrumentation and
data analysis methods.
Writing even in overview of more than a half-century of
professional life of a giant of twentieth century science and
technology such as Edward Teller is a daunting task. We ask in
advance the reader's pardon for passing over quickly or omitting
entirely aspects of Teller's life and work which may seem of major
significance but which we, due to differences of perspective or
knowledge, speak too little or not at all. We refer those
interested in greater depth to the excellent biography by Stanley
Blumberg and Gwen Owens, The Life and Times of Edward Teller, and
we have (with his permission) printed Professor Eugene Wigner's An
Appreciation On the 60th Birthday of Edward Teller immediately
after this foreword, so that the reader may consider the
perspective of one of Teller's most illustrious contemporaries more
than two decades ago. Edward Teller was born in Budapest, Hungary
on January 15,1908. While his childhood was spent in the twilight
of the Victorian age and its abrupt conclusion in the Great War and
his youth in its especially turbulent after math in central Europe,
he doesn't bear visible scars from it."
In the50years since the first volume of "Progress in Optics" was
published, optics has become one of the most dynamic fields of
science. The volumes in this series that have appeared up to now
contain more than 300 review articles by distinguished research
workers, which have become permanent records for many important
developments, helping optical scientists and optical engineers stay
abreast of their fields.
Comprehensive, in-depth reviewsEdited by the leading authority in
the field"
Experts on elementary-particle physics, both theorists and
experimentalists, met to present their latest results on the
various aspects of HERA physics, specifically, the H1 and ZEUS
collaborations at HERA and the collaborations at LEP and the
Tevatron were presented. The topics included: proton structure
function; polarized "ep" scattering; final states in deep-inelastic
scattering (DIS), with special emphasis on jet production at low x,
power corrections in DIS, soft particle production, and instanton
effects; photon structure function; photoproduction of jets and
hadrons; heavy-flavour and charmonium production; elastic and
diffractive ep scattering; and new physics at HERA.
The three articles of the present volume pertain to very different
subjects, all ofconsiderable current interest. The first reviews
the fascinating history ofthe search for nucleon substructure in
the nucleus using the strength ofGamow- Teller excitations. The
second deals with deep inelastic lepton scattering as a probe ofthe
non-perturbative structure of the nucleon. The third describes the
present state ofaffairs for muon catalyzed fusion, an application
of nuclear physics which many new experiments have helped to
elucidate. This volume certainly illustrates the broad range
ofphysics within our field. The article on Nucleon Charge-Exchange
Reactions at Intermediate Energy, by Parker Alford and Brian
Spicer, reviews recent data which has clarified one of the greatest
puzzles of nuclear physics during the past two decades, namely, the
"missing strength" in Gamow-Teller (GT) transitions. The
nucleon-nucleon interaction contains a GT component which has a
low-lying giant resonance. The integrated GT strength is subject to
a GT sum rule. Early experiments with (n, p) charge exchange
reactions found only about half of the strength, required by the
sum rule, in the vicinity of the giant resonance. At the time, new
theoretical ideas suggested that the GT strength was especially
sensitive to renormalization from effects pertaining to nucleon
substructure, particularly the delta excitation of the nucleon in
the nucleus.
Stars are born and die in clouds of gas and dust, opaque to most
types of radiation, but transparent in the infrared. Requiring
complex detectors, space missions and cooled telescopes, infrared
astronomy is the last branch of this discipline to come of age.
After a very successful sky survey performed in the eighties by the
IRAS satellite, the Infrared Space Observatory, in the nineties,
brought spectacular advances in the understanding of the processes
giving rise to powerful infrared emission by a great variety of
celestial sources.
Outstanding results have been obtained on the bright comet
Hale-Bopp, and in particular of its water spectrum, as well as on
the formation, chemistry and dynamics of planetary objects in the
solar system. Ideas on the early stages of stellar formation and on
the stellar initial mass function have been clarified.
ISO is the first facility in space able to provide a systematic
diagnosis of the physical phenomena and the chemistry in the close
environment of pre-main sequence stars, in the interstellar medium,
and in the final stages of stellar life, using, among other
indicators, molecular hydrogen, ubiquitous crystalline silicates,
water and ices.
ISO has dramatically increased our ability to investigate the
power production, excitation and fuelling mechanism of galaxies of
every type, and has discovered a new very cold dust component in
galaxies.
ISO has demonstrated that luminous infrared galaxies were
brighter and much more numerous in the past, and that they played a
dominant role in shaping present day galaxies and in producing the
cosmic infrared background.
This book introduces the reader to the use of Monte Carlo methods
for solving practical problems in radiation transport, and will
also serve as a reference work for practitioners in the field. It
assumes the reader has a general knowledge of calculus and
radiation physics, and a knowledge of Fortran programming, but
assumes no prior knowledge of stochastic methods or statistical
physics. The subject is presented by a combination of theoretical
development and practical calculations. Because Monte Carlo methods
are closely linked to the use of computers, from the beginning the
reader is taught to convert the theoretical constructs developed in
the text into functional software for use on a personal computer.
Example problems provide the reader with an in-depth understanding
of the concepts presented and lead to the production of a unique
learning tool, a probabilistic framework code that models in a
simple manner the features of production of Monte Carlo transport
codes. This framework code is developed in stages such that every
function is understood, tested, and demonstrated - random sampling,
generating random numbers, implementing geometric models, using
variance reduction, tracking particles in a random walk, testing
the thoroughness with which the problem phase space is sampled,
scoring detectors, and obtaining estimates of uncertainty in
results. Advanced topics covered include criticality, correlated
sampling, adjoint transport, and neutron thermalization. Monte
Carlo codes can produce highly precise wrong answers. The
probability of this occurring is increased if production codes are
run as opaque, black boxes' of software. This text attempts to make
Monte Carlo into acomprehensible, usable tool for solving practical
transport problems. It is suitable for advanced undergraduate and
graduate students and researchers who wish to expand their
knowledge of the Monte Carlo technique.
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