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Masses Of The 70 Baryons In Large Nc Qcd
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Book Synopsis Masses of the 70- Baryons in Large Nc QCD. by :
Download or read book Masses of the 70- Baryons in Large Nc QCD. written by and published by . This book was released on 2001 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The masses of the negative parity 70-plet baryons are analyzed in large N{sub c} QCD to order 1/N{sub c} and to first order in SU(3) symmetry breaking. The existing experimental data are well reproduced and twenty new observables are predicted. The leading order SU(6) spin-flavor symmetry breaking is small and, as it occurs in the quark model, the subleading in 1/N{sub c} hyperfine interaction is the dominant source of the breaking. It is found that the Lambda(1405) and Lambda(1520) are well described as three-quark states and spin-orbit partners. New relations between splittings in different SU(3) multiplets are found.
Book Synopsis Phenomenology Of Large Nc Qcd by : Richard F Lebed
Download or read book Phenomenology Of Large Nc Qcd written by Richard F Lebed and published by World Scientific. This book was released on 2002-09-16 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The generalization of QCD from three to NC colors, developed in 1974 by Nobel laureate Gerard 't Hooft, has proved to be an extraordinarily useful and robust theoretical extension for studying the behavior of strong interaction physics. This book is the proceedings of the first-ever meeting exclusively devoted to large NC QCD. The workshop brought together representatives of many subdisciplines for a “meeting of minds” on topics ranging from finite temperature and density to the lattice, perturbative QCD, instantons, mesons, baryons, and nuclear physics. Beginning with 't Hooft's keynote presentation, the contributions are designed to introduce uses of large NC methods in each specialty to a broader particle physics audience.
Book Synopsis Masses of Orbitally Excited Baryons in Large N{sub C} QCD. by :
Download or read book Masses of Orbitally Excited Baryons in Large N{sub C} QCD. written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present the first phenomenological study of the masses of orbitally excited baryons in large N{sub c} QCD. Restricting here to the nonstrange sector of the L=1 baryons, the 1/N{sub c} expansion is used to order and select a basis of effective operators that spans the nine observables (seven masses and two mixing angles). Fits are performed using subsets of the complete set of nine operators, including corrections up to O(1/N{sub c}) where leading order is N{sub c}1. This study shows that the 1/N{sub c} expansion provides an excellent framework for analyzing the mass spectrum, and uncovers a new hierarchy of operator contributions.
Book Synopsis Large Nc Qcd 2004 - Proceedings Of The Workshop by : Jose Luis Goity
Download or read book Large Nc Qcd 2004 - Proceedings Of The Workshop written by Jose Luis Goity and published by World Scientific. This book was released on 2005-08-04 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: The large Nc limit plays a fundamental role in the study of non-abelian gauge theories such as quantum chromodynamics (QCD). Since its discovery in 1974 by 't Hooft, the 1/Nc expansion has provided crucial insights into the non-perturbative aspects of gauge theories. The expansion implemented at the effective theory level is one of the fundamental tools currently in use in hadronic physics; there are important effects and relations that follow from the 1/Nc expansion, which held remarkably well in the real world with Nc= 3. The 1/Ncexpansion also plays a central role in the recently discovered connections between non-Abelian gauge and string theories, promising new ways to analyze the non-perturbative domain of gauge theories.This volume contains contributions from leading theorists and covers the recent developments in the 1/Nc expansion in QCD. The topics addressed include confinement, AdS/CFT correspondence and the string-QCD connection, topology in large Nc, lattice QCD, and a variety of applications to mesons and baryons.
Book Synopsis Baryon Spin-flavor Structure from an Analysis of Lattice QCD Results of the Baryon Spectrum by :
Download or read book Baryon Spin-flavor Structure from an Analysis of Lattice QCD Results of the Baryon Spectrum written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The excited baryon masses are analyzed in the framework of the 1/Nc expansion using the available physical masses and also the masses obtained in lattice QCD for different quark masses. The baryon states are organized into irreducible representations of SU(6) x O(3), where the [56,lP=0] ground state and excited baryons, and the [56,2+] and [70}},1-] excited states are analyzed. The analyses are carried out to order O(1/Nc) and first order in the quark masses. The issue of state identifications is discussed. Numerous parameter independent mass relations result at those orders, among them the well known Gell-Mann-Okubo and Equal Spacing relations, as well as additional relations involving baryons with different spins. It is observed that such relations are satisfied at the expected level of precision. The main conclusion of the analysis is that qualitatively the dominant physical effects are similar for the physical and the lattice QCD baryons.
Book Synopsis Continuous Advances In Qcd 2008 - Proceedings Of The Conference by : Marco Peloso
Download or read book Continuous Advances In Qcd 2008 - Proceedings Of The Conference written by Marco Peloso and published by World Scientific. This book was released on 2008-12-05 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains papers presented at the Eight Workshop on Continuous Advances in QCD (quantum chromodynamics), held at the William I Fine Theoretical Physics Institute, USA on May 15-18, 2008.
Book Synopsis Excited Nucleons and Hadronic Structure by : V. Burkert
Download or read book Excited Nucleons and Hadronic Structure written by V. Burkert and published by World Scientific. This book was released on 2001 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Heavy Baryons in the Large Nc Limit by :
Download or read book Heavy Baryons in the Large Nc Limit written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It is shown that in the large Nc limit heavy baryon masses can be estimated quantitatively in a 1/Nc expansion using the Hartree approximation. The results are compared with available lattice calculations for different values of the ratio between the square root of the string tension and the heavy quark mass tension independent of Nc. Using a potential adjusted to agree with the one obtained in lattice QCD, a variational analysis of the ground state spin averaged baryon mass is performed using Gaussian Hartree wave functions. Relativistic corrections through the quark kinetic energy are included. The results provide good estimates for the first sub-leading in 1/Nc corrections.
Book Synopsis The Nc Dependencies of Baryon Masses by :
Download or read book The Nc Dependencies of Baryon Masses written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Baryon masses at varying values of Nc and light quark masses are studied with Lattice QCD and the results are analyzed in a low energy effective theory based on a combined framework of the 1/Nc and Heavy Baryon Chiral Perturbation Theory expansions. Lattice QCD results for Nc=3, 5 and 7 obtained in quenched calculations, as well as results for unquenched calculations for Nc=3, are used for the analysis. The results are consistent with a previous analysis of Nc=3 LQCD results, and in addition permit the determination of sub-leading in 1/Nc effects in the spin-flavor singlet component of the baryon masses as well as in the hyperfine splittings.
Book Synopsis Masses and Magnetic Moments of Baryons in a QCD-string Model by : Johannes Weda
Download or read book Masses and Magnetic Moments of Baryons in a QCD-string Model written by Johannes Weda and published by . This book was released on 2004 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Baryons 2002, Proceedings Of The 9th International Conference On The Structure Of Baryons by : Bernhard Mecking
Download or read book Baryons 2002, Proceedings Of The 9th International Conference On The Structure Of Baryons written by Bernhard Mecking and published by World Scientific. This book was released on 2003-05-28 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the latest developments in the area of three-quark systems. Emphasis is given to the discussion of new experimental results in the areas of form factors, unpolarized and polarized structure functions, and baryon structure and spectroscopy. Of particular interest are the new theoretical developments in the area of generalized parton distributions and lattice quantum chromodynamics.
Download or read book Baryons 2002 written by Carl Carlson and published by World Scientific. This book was released on 2003 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the latest developments in the area of three-quark systems. Emphasis is given to the discussion of new experimental results in the areas of form factors, unpolarized and polarized structure functions, and baryon structure and spectroscopy. Of particular interest are the new theoretical developments in the area of generalized parton distributions and lattice quantum chromodynamics.
Book Synopsis Continuous Advances in QCD 2008 by : Marco M. Peloso
Download or read book Continuous Advances in QCD 2008 written by Marco M. Peloso and published by World Scientific. This book was released on 2008 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains papers presented at the Eight Workshop on Continuous Advances in QCD (quantum chromodynamics), held at the William I Fine Theoretical Physics Institute, USA on May 15?18, 2008.
Book Synopsis Proceedings of the 9th International Workshop on Meson Production, Properties and Interaction (MESON 2006) by :
Download or read book Proceedings of the 9th International Workshop on Meson Production, Properties and Interaction (MESON 2006) written by and published by . This book was released on 2007 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Strong Coupling Gauge Theories in LHC Era by : Hidenori Fukuya
Download or read book Strong Coupling Gauge Theories in LHC Era written by Hidenori Fukuya and published by World Scientific. This book was released on 2011 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the Workshop is to have intensive discussions on both theoretical and phenomenological aspects of strong coupling gauge theories (SCGTs), with particular emphasis on the model buildings to be tested in the LHC experiments. Dynamical issues are discussed in lattice simulations and various analytical methods. This proceedings volume is a collection of the presentations made at the Workshop by many leading scientists in the field.
Book Synopsis Strong Coupling Gauge Theories in LHC Era by : H. Fukuya
Download or read book Strong Coupling Gauge Theories in LHC Era written by H. Fukuya and published by World Scientific. This book was released on 2011 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the Workshop is to have intensive discussions on both theoretical and phenomenological aspects of strong coupling gauge theories (SCGTs), with particular emphasis on the model buildings to be tested in the LHC experiments. Dynamical issues are discussed in lattice simulations and various analytical methods. This proceedings volume is a collection of the presentations made at the Workshop by many leading scientists in the field.
Book Synopsis Continuous Advances in QCD 2006 by : M. Peloso
Download or read book Continuous Advances in QCD 2006 written by M. Peloso and published by World Scientific. This book was released on 2007 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume contains the proceedings of the workshop Continuous Advances in QCD 2006, hosted by the Wiliam I Fine Theoretical Physics Institute. This biennial workshop was the seventh meeting of the series, held at the University of Minnesota since 1994. The workshop gathered together about 110 scientists (a record number for the event), including most of the leading experts in quantum chromodynamics and non-Abelian gauge theories in general.
