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The Clas Excited Baryon Program At Jlab
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Book Synopsis The CLAS Excited Baryon Program at Jlab by :
Download or read book The CLAS Excited Baryon Program at Jlab written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nucleons are complex systems of confined quarks and exhibit characteristic spectra of excited states. Highly excited nucleon states are sensitive to details of quark confinement which is poorly understood within Quantum Chromodynamics (QCD), the fundamental theory of strong interactions. Thus, measurements of excited states and the corresponding determination of their properties are needed to come to a better understanding of how confinement works in nucleons. However, the excited states of the nucleon cannot simply be inferred from cleanly separated spectral lines. Quite the contrary, a spectral analysis in nucleon resonance physics is challenging because of the fact that the resonances are broadly overlapping states which decay into a multitude of final states involving mesons and baryons. To provide a consistent and complete picture of an individual nucleon resonance, the various possible production and decay channels must be treated in a multichannel framework that permits separating resonance from background contributions. Very often, resonances reveal themselves more clearly through interference with dominant amplitudes. These interference terms can be isolated via polarization observables. The current CLAS effort is to utilize highly-polarized hydrogen and deuterium targets as well as polarized photon beams toward a complete measurement of a large number of reaction channels.
Book Synopsis Overview of the CLAS/JLAB Physics Program by : Stepan Stepanyan
Download or read book Overview of the CLAS/JLAB Physics Program written by Stepan Stepanyan and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The CLAS collaboration has developed a broad program for studying electromagnetically induced processes with both electron and photon beams. This program includes topics such as excited baryon resonances, meson production, hadron structure, search for pentaquarks, and the structure of nuclei. In this report, highlights of recent CLAS results will be presented.
Book Synopsis The CLAS Excited Baryon Program at Jefferson Laboratory by :
Download or read book The CLAS Excited Baryon Program at Jefferson Laboratory written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nucleons are complex systems of confined quarks and exhibit characteristic spectra of excited states. Highly excited nucleon states are sensitive to details of quark confinement which is poorly understood within Quantum Chromodynamics (QCD), the fundamental theory of strong interactions. Thus, measurements of excited states and the corresponding determination of their properties are needed to come to a better understanding of how confinement works in nucleons. However, the excited states of the nucleon cannot simply be inferred from cleanly separated spectral lines. Quite the contrary, a spectral analysis in nucleon resonance physics is challenging because of the fact that the resonances are broadly overlapping states which decay into a multitude of final states involving mesons and baryons. To provide a consistent and complete picture of an individual nucleon resonance, the various possible production and decay channels must be treated in a multi-channel framework that permits separat.
Book Synopsis VII Latin American Symposium on Nuclear Physics and Applications by : Ricardo Alarcon
Download or read book VII Latin American Symposium on Nuclear Physics and Applications written by Ricardo Alarcon and published by American Inst. of Physics. This book was released on 2007-11-09 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings aim to show the vitality and significance of nuclear science. The focus is the promotion of Nuclear Physics and its applications among Latin American laboratories and the international community. This Volume covers six main topics: Applications of Nuclear Physics, QCD in Nuclear Physics, Fundamental Symmetries and Neutrinos, Nuclear Structure and Reactions, Nuclear and Particle Astrophysics, and Facilities and Instrumentation.
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 Nstar 2004 - Proceedings Of The Workshop On The Physics Of Excited Nucleons by : Viatcheslav Kouznetsov
Download or read book Nstar 2004 - Proceedings Of The Workshop On The Physics Of Excited Nucleons written by Viatcheslav Kouznetsov and published by World Scientific. This book was released on 2004-11-23 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers recent advances in the field of nucleon resonances presented at the IX International Workshop on the Physics of Excited Baryons, NSTAR2004. A complete overview of the most recent experimental results obtained worldwide on baryon spectroscopy is presented together with theoretical progress on related topics ranging from resonance parameters extraction to lattice-QCD calculations through effective field theory. Of particular interest, a large part of the book is devoted to exotic states with quantum numbers of pentaquarks, whose recent discovery represents a new chapter in hadronic physics.The proceedings have been selected for coverage in:• Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)• CC Proceedings — Engineering & Physical Sciences
Book Synopsis Intersections of Particle and Nuclear Physics by : Tony M. Liss
Download or read book Intersections of Particle and Nuclear Physics written by Tony M. Liss and published by American Institute of Physics. This book was released on 2006-12-13 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a conference that explores areas of common interest between nuclear physicists, high energy (particle) physicists, and astrophysicists. These areas range from studies of the strong interactions that bind the nuclei together, to physics of the very early Universe. They include such topics as the detailed behavior of neutrinos and searches for "new physics", that is phenomena that cannot be accounted for by our current theories.
Book Synopsis The Need for Polarization for Extracting Baryon Resonances and the NSTAR Program at CLAS. by :
Download or read book The Need for Polarization for Extracting Baryon Resonances and the NSTAR Program at CLAS. written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on the NSTAR program in Hall B of JLab on using polarization observables to extract parameters of baryon resonances. The scientific purpose of the program is to improve the understanding of the underlying quark degrees of freedom, especially in the higher resonance regions, where we expect to uncover many of missing baryon resonances that mainly decay through multi-meson channels. With the high-quality beam of circularly- and linearly-polarized photons onto unpolarized and polarized proton and deteurium targets, and coupled with the nearly complete solid angle coverage of CLAS, we will extract the differential cross sections and associated polarization observables obtained by the photoproduction of vector mesons and kaons at center of mass energies of 1.7 to 2.2 GeV. The paper will primarily present the photon beam aspects of the excited baryon program.
Download or read book Nstar2007 written by Hans W. Hammer and published by Springer Science & Business Media. This book was released on 2009-04-23 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: c Societ` a Italiana di Fisica / Springer-Verlag 2008 The 11th Workshop on The Physics of Excited Nucleons, NSTAR 2007, was held at the University of Bonn, Germany,fromSeptember5–8,2007.ItwasthelatestofaseriesofsuccessfulconferencesattheRensselaerPolytechnic Institute (1988), Florida State University (1994 and 2005), Je?erson Lab (1995 and 2000), INT Seattle (1996), GWU ? Washington (1997), ECT Trento (1998), Mainz (2001), Pittsburgh (2002) and the LPSC Grenoble (2004). A Baryon Resonance Analysis Group (BRAG) meeting immediately before the workshop focused especially on the physical meaning of bare and dressed scattering matrix singularities. A focus workshop on? photoproduction rounded o? the NSTAR 2007. The goal of NSTAR 2007 was to bring together experts on all areas of physics relevant to baryon spectroscopy, both in experiment and theory. Latest results were presented in 30 plenary talks and 34 parallel contributions, the proceedings of which are collected in this volume. The workshop was attended by 123 scientists of 41 universities and laboratories from 16 countries. Exciting new high-precision data were shown from facilities in Asia, the US and Europe, e.g. BES, BNL, COSY, ELSA, GRAAL, JLab, MAMI and LEPS. Large-acceptance detectors provide complete angular distributions in many reaction channels. Particular emphasis is put on the measurement of single and double polarisation observables such that many new polarization measurements can be expected in forthcoming meetings.
Download or read book Baryons 2002 written by Carl Carlson and published by World Scientific. This book was released on 2003 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.
Book Synopsis Excited Nucleons And Hadron Structure - Proceedings Of The Nstar 2000 Conference by : Volker Burkert
Download or read book Excited Nucleons And Hadron Structure - Proceedings Of The Nstar 2000 Conference written by Volker Burkert and published by World Scientific. This book was released on 2001-02-28 with total page 454 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 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.
Book Synopsis Unconventional Baryon and Meson Spectroscopy at Jefferson Lab by :
Download or read book Unconventional Baryon and Meson Spectroscopy at Jefferson Lab written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding quark and gluon confinement in Quantum Chromodynamics is one of the main issue in hadronic physics. Electromagnetic probes, real and virtual photons, are a powerful tool to investigate how the QCD-partons manifest themselves in strong interaction at the energy scale of the nucleon mass (GeV). The CLAS Collaboration in Hall B at Jefferson Lab (USA) has a broad scientific program ranging from the static and dynamic properties of constituent quarks to the investigation of possible exotic baryon configurations. After a brief description of the CLAS detector, some selected results will be outlined showing the richness of this non-perturbative physics.
Book Synopsis N* Physics and Nonperturbative Quantum Chromodynamics by : Silvano Simula
Download or read book N* Physics and Nonperturbative Quantum Chromodynamics written by Silvano Simula and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Workshop N* Physics and non-perturbative QeD was held at the Eu ropean Center for Theoretical Studies and Related Areas (ECT*) in Trento, Italy, during May 18-29, 1998. Previous workshops of the series on N* Physics took place at the Florida State University (1994), at CEBAF (1995), at the Institute for Nuclear Theory in Seattle (1996) and at the George Washington University (1997). The Workshop was devoted to a summary of recent experimental and the oretical research on N* phsyics and special emphasis was given to the infor mation that photo-and electro-production of nucleon resonances can provide on the non-perturbative regime of Quantum Chromodynamics. The idea was to stimulate discussions among experimentalists and theoreticians in order to pursue the interpretation of the huge amount of forthcoming data from several laboratories in the world. It was therefore decided to have both experimental and theoretical lectures on the main topics, like ,among the others, single and double pion production, TJ-and K-meson production, the GDH sum rule, the spin of the proton, etc. Thanks to the unusual two-week extension of the Work shop, the allotted time for the lectures was extended up to one hour in order to allow the invited lecturers to give a detailed presentation of their topics. Fi nally, various short contributions were selected to sharpen the discussion about selected items.
Book Synopsis Nstar 2005 - Proceedings Of The Workshop On The Physics Of Excited Nucleons by : Simon Capstick
Download or read book Nstar 2005 - Proceedings Of The Workshop On The Physics Of Excited Nucleons written by Simon Capstick and published by World Scientific. This book was released on 2006-06-08 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together experts on the quark-gluon structure of matter as it applies to nucleon resonance physics. The contributions discuss the latest findings in areas such as meson production via electromagnetic and hadronic reactions, baryon resonance structure in chiral and lattice QCD approaches, and the extraction of resonance parameters from coupled-channels analysis of data.
Book Synopsis Hadron Spectroscopy And Structure - Proceedings Of The Xviii International Conference by : Feng-kun Guo
Download or read book Hadron Spectroscopy And Structure - Proceedings Of The Xviii International Conference written by Feng-kun Guo and published by World Scientific. This book was released on 2020-07-28 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the conference proceedings for the 18th International Conference on Hadron Spectroscopy and Structure (HADRON2019), held in Guilin, China. It is among the most important conference series in the field of hadron spectroscopy and structure. Collecting more than 130 contributions from this conference, the book spans over the topics of meson and baryon spectroscopy, exotic hadrons, hadron production and interactions, analysis tools, QCD and hadron structure, hadrons in nuclear environment and hypernuclei. Summaries of the recent discoveries from Belle, BESIII, LHCb and other high-energy experiments, as well as recent theoretical developments in the above mentioned topics, are contained in this volume, rendering it as a valuable resource for researchers working on hadron spectroscopy and structure.
Download or read book NSTAR 2001 written by D. Drechsel and published by World Scientific. This book was released on 2001 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Positive pion photoproduction and compton scattering at GRAAL / V. Kouznetsov for the GRAAL collaboration -- Virtual compton scattering and pion electroproduction in the nucleon resonance region / G. Laveissiere for the Jefferson Lab Hall A collaboration -- Single spin beam asymmetry measurements from single [symbol] electroproduction in the [symbol](1232) resonance region / K. Joo -- The new crystal ball experimental program / W. J. Briscoe -- Observation of [symbol]-mesic nuclei in photoreactions: Results and perspectives / G. A. Sokol, A. I. L'vov, L. N. Pavlyuchenko -- Baryon spectroscopy: Experiments at PNPI / I. Lopatin -- Measurement of the cross section asymmetry in deuteron photodisintegration by linearly polarized photons in the energy range E[symbol] = 0.8 - 1.6 GeV / A. Sirunian ... [et al.] -- Nucleon resonances in lattice QCD / F. X. Lee -- Lattice study of nucleon properties with domain wall fermions / S. Sasaki -- Quark-hadron duality: Resonances and the onset of scaling / W. Melnitchouk -- Generalized GDH sum rule and spin-dependent electroproduction in the resonance region / J. P. Chen for the Jefferson Lab E94-010 collaboration -- Double polarization measurements using the CLAS at JLab / R. C. Minehart for the CLAS collaboration -- The helicity dependent excitation spectrum of the nucleon and the GDH sum rule / A. Thomas for the GDH- and A2-collaborations -- Static magnetic moment of the [symbol](1232) / M. Kotulla for the TAPS and AS collaborations -- Meson photoproduction at GRAAL / A. D'Angelo ... [et al.] -- Maximum likelihood techniques for PWA of 2-pion photoproduction / J. P. Cummings -- [symbol] electroproduction with CLAS / J. A. Mueller -- Kaon electroproduction and [symbol] polarization observables measured with CLAS / B. Raue for the CLAS collaboration -- Recent results on kaon photoproduction at SAPHIR in the reactions [symbols] and [symbols] / K.-H. Glander for the SAPHIR collaboration -- Vector meson decay of baryon resonances / U. Mosel, M. Post -- Higher and missing resonances in [symbol] photoproduction / Y. Oh, A. I. Titov, T.-S. H. Lee -- Photoproduction of baryon resonances, first data from the CB-ELSA experiment / U. Thoma for the CB-ELSA collaboration -- Laser-electron photon project at SPring-8 / T. Nakano -- The baryon resonance program at BES / B.S. Zou for the BES collaboration -- Flavor symmetry studies with new hyperon data from the crystal ball / B. M. K. Nefkens ... [et al.] for the Crystal Ball collaboration -- Higher resonances and the example of two pion electroproduction with the CLAS detector at Jefferson Lab / M. Ripani for the CLAS collaboration -- Nucleon resonances and mesons in nuclei / V. Metag -- Excitation of nucleon resonances / V. D. Burkert -- Summary of the partial wave analysis group of BRAG: Multipole analysis of a benchmark data set for pion photoproduction / R. A. Arndt ... [et al.].
