Lattice QCD and the Jefferson Laboratory Program

Lattice QCD and the Jefferson Laboratory Program PDF Author:
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ISBN:
Category :
Languages : en
Pages :

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Book Description
Lattice gauge theory provides our only means of performing \textit{ab initio} calculations in the non-perturbative regime. It has thus become an increasing important component of the Jefferson Laboratory physics program. In this paper, we describe the contributions of lattice QCD to our understanding of hadronic and nuclear physics, focusing on the structure of hadrons, the calculation of the spectrum and properties of resonances, and finally on deriving an understanding of the QCD origin of nuclear forces.

Lattice QCD and the Jefferson Laboratory Program

Lattice QCD and the Jefferson Laboratory Program PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
Lattice gauge theory provides our only means of performing \textit{ab initio} calculations in the non-perturbative regime. It has thus become an increasing important component of the Jefferson Laboratory physics program. In this paper, we describe the contributions of lattice QCD to our understanding of hadronic and nuclear physics, focusing on the structure of hadrons, the calculation of the spectrum and properties of resonances, and finally on deriving an understanding of the QCD origin of nuclear forces.

Hadronic Physics at Jefferson Lab

Hadronic Physics at Jefferson Lab PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 90701

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Book Description
I describe some of the lattice QCD work in support of the hadronic physics program at Jefferson Lab. In particular, there is a strong emphasis on the determination of the excited state hadron spectrum, as well as determining the spin content of nucleons and other hadrons.

Hadronic Physics From Lattice Qcd

Hadronic Physics From Lattice Qcd PDF Author: Anthony M Green
Publisher: World Scientific
ISBN: 9814481920
Category : Science
Languages : en
Pages : 385

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Book Description
Particle and nuclear physicists frequently take results from Lattice QCD at their face value without probing into their reliability or sophistication. This attitude usually stems from a lack of knowledge of the field. The aim of the present volume is to rectify this by introducing in an elementary way several topics, which we believe are appropriate for, and of possible interest to, both particle and nuclear physicists who are non-experts in the field.

Exclusive Reactions at High Momentum Transfer IV

Exclusive Reactions at High Momentum Transfer IV PDF Author: Anatoly Radyushkin
Publisher: World Scientific
ISBN: 981432955X
Category : Science
Languages : en
Pages : 486

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Book Description
The Proceedings include talks given at the 4th Workshop on Exclusive Reactions at High Momentum Transfer at Jefferson Lab, Newport News, VA USA, the world's leading facility performing research on nuclear, hadronic and quark-gluon structure of matter. Exclusive reactions are becoming one of the major sources of information about the deep structure of the nucleons and other hadrons. The workshop focused on the application of a variety of exclusive reactions at high momentum transfer, utilizing unpolarized and polarized beams and targets, to obtain information about nucleon ground state and excited state structure at short distances. This is a subject which is central to the programs of current accelerators and especially planned future facilities. The topics include: generalized parton distributions, deeply virtual Compton scattering, deeply virtual meson production (DVMP), transverse structure of hadrons (TMD), hadron form factors ? elastic and transition, quantum chromodynamics (perturbative, non-perturbative, lattice calculations), and physics to study at an Electron Ion Collider.

Quark-hadron Duality And The Transition To Pqcd - Proceedings Of The First Workshop

Quark-hadron Duality And The Transition To Pqcd - Proceedings Of The First Workshop PDF Author: Simonetta Liuti
Publisher: World Scientific
ISBN: 9814478490
Category : Science
Languages : en
Pages : 298

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Book Description
While perturbative QCD methods fully describe experimental results at high energies, and chiral perturbation theory is the low energy effective theory of the strong interactions, a form of duality is observed connecting these two regimes. In these intermediate kinematics, a wide variety of reactions are observed which can be described simultaneously by single particle (quark) scattering, and by exclusive resonance (hadron) scattering.The contributions in this proceedings volume discuss recent and existing results, and aim to foster current and future research, investigating the phenomenon of quark-hadron duality.This unique volume contains research work by scientists from different arenas of hadronic physics, dealing with different manifestations of quark-hadron duality.

Lattice Hadron Physics

Lattice Hadron Physics PDF Author: Alex Kalloniatis
Publisher: Springer Science & Business Media
ISBN: 9783540239116
Category : Science
Languages : en
Pages : 252

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Book Description
Lattice Hadron Physics draws upon the developments made in recent years in implementing chirality on the lattice via the overlap formalism. These developments exploit chiral effective field theory in order to extrapolate lattice results to physical quark masses, new forms of improving operators to remove lattice artefacts, analytical studies of finite-volume effects in hadronic observables, and state-of-the-art lattice calculations of excited resonances. This volume, comprised of selected lectures, is designed to assist those outside the field who want quickly to become literate in these topics. As such, it provides graduate students and experienced researchers in other areas of hadronic physics with the background through which they can appreciate, if not become active in, contemporary lattice-gauge theory and its applications to hadronic phenomena.

Lattice QCD Beyond Ground States

Lattice QCD Beyond Ground States PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Lattice QCD for Nuclear Physics

Lattice QCD for Nuclear Physics PDF Author: Huey-Wen Lin
Publisher: Springer
ISBN: 3319080229
Category : Science
Languages : en
Pages : 255

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Book Description
With ever increasing computational resources and improvements in algorithms, new opportunities are emerging for lattice gauge theory to address key questions in strongly interacting systems, such as nuclear matter. Calculations today use dynamical gauge-field ensembles with degenerate light up/down quarks and the strange quark and it is possible now to consider including charm-quark degrees of freedom in the QCD vacuum. Pion masses and other sources of systematic error, such as finite-volume and discretization effects, are beginning to be quantified systematically. Altogether, an era of precision calculation has begun and many new observables will be calculated at the new computational facilities. The aim of this set of lectures is to provide graduate students with a grounding in the application of lattice gauge theory methods to strongly interacting systems and in particular to nuclear physics. A wide variety of topics are covered, including continuum field theory, lattice discretizations, hadron spectroscopy and structure, many-body systems, together with more topical lectures in nuclear physics aimed a providing a broad phenomenological background. Exercises to encourage hands-on experience with parallel computing and data analysis are included.

Quark Confinement and the Hadron Spectrum III

Quark Confinement and the Hadron Spectrum III PDF Author: Nathan Isgur
Publisher: World Scientific
ISBN: 9789810242367
Category : Science
Languages : en
Pages : 384

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Book Description
The confinement mechanism of the quarks in QCD is one of the most challenging and open problems in physics. Confinement is a nonperturbative phenomenon, and a definite way to handle it has not yet been found in field theory. There are lattice calculations that can produce the low-lying states of the spectrum and ?measure? many important physical quantities, but nevertheless the development of analytical techniques is of extreme importance for understanding the physics involved in confinement. In this respect it is important to test the results obtained directly from the theory (Bethe-Salpeter kernel, effective Hamiltonians, quark potential, etc.) on the spectrum, form factors and decays of bound states of quarks and gluons, and to relate them to the results of lattice theory.In this book, the question of the confinement mechanism is addressed; explanations in terms of monopoles, instantons and dyons are reviewed and the connection with duality is discussed.

Excited Nucleons and Hadronic Structure

Excited Nucleons and Hadronic Structure PDF Author: V. Burkert
Publisher: World Scientific
ISBN: 9789810244996
Category : Science
Languages : en
Pages : 458

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Book Description
The conference NSTAR 2000 was part of a series of conferences and workshops that began in New York in 1988. Since then, the field of excited nucleons and hadron structure has developed enormously, and the scope has broadened. Most significantly, new experimental facilities have come into operation, allowing precise measurements of resonance couplings and transition form factors. The search for ?missing? quark model states and gluonic excitations in complex hadronic channels is now possible.On the theory side, new and promising developments have emerged: quark models with meson degrees of freedom, hybrid baryon models, and studies of baryons in the limit of many colors. For the first time, lattice QCD has been employed to calculate masses of excited nucleons. Nucleon resonances are now recognized as providing significant contributions to the nucleon spin sum rules, as well as the Gerasimov-Drell-Hearn and Bjorken integrals, at finite momentum transfer.