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| Total Pages | : 114017 |
| Release | : 2008 |
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I describe the status of lattice studies of mesons composed of light (u/d/s) quarks and of gluons, and describe the challenges and prospects for future calculations. I focus in particular on delineating single- and multiparticle states in the spectrum, and of discerning the properties of resonances.
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| Release | : 2012 |
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I report on recent progress in calculating excited meson spectra using lattice QCD, emphasizing results and phenomenology. With novel techniques we can now extract extensive spectra of excited mesons with high statistical precision, including spin-four states and those with exotic quantum numbers. As well as isovector meson spectra, I will present new calculations of the spectrum of excited light isoscalar mesons, something that has up to now been a challenge for lattice QCD. I show determinations of the flavor content of these mesons, including the eta-eta' mixing angle, providing a window on annihilation dynamics in QCD. I will also discuss recent work on using lattice QCD to map out the energy-dependent phase shift in pi-pi scattering and future applications of the methodology to the study of resonances and decays.
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| Release | : 2011 |
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I will discuss recent progress in extracting highly excited and exotic meson spectra using lattice QCD. New results in the light meson sector will be presented, where a combination of techniques have enabled us to confidently identify the spin of extracted states. Highlights include many states with exotic quantum numbers and, for the first time in a lattice QCD calculation, spin-four states. I will conclude with comments on future prospects.
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| Total Pages | : 20 |
| Release | : 2008 |
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| Total Pages | : 5 |
| Release | : 2011 |
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We extract to high statistical precision an excited spectrum of single-particle isoscalar mesons using lattice QCD, including states of high spin and, for the first time, light exotic JPC isoscalars. The use of a novel quark field construction has enabled us to overcome the long-standing challenge of efficiently including quark-annihilation contributions. Hidden-flavor mixing angles are extracted and while most states are found to be close to ideally flavor mixed, there are examples of large mixing in the pseudoscalar and axial sectors in line with experiment. The exotic JPC isoscalar states appear at a mass scale comparable to the exotic isovector states.
| Author | : Herwig Schopper |
| Publisher | : Springer Nature |
| Total Pages | : 632 |
| Release | : 2020 |
| Genre | : Heavy ions |
| ISBN | : 3030382079 |
This first open access volume of the handbook series contains articles on the standard model of particle physics, both from the theoretical and experimental perspective. It also covers related topics, such as heavy-ion physics, neutrino physics and searches for new physics beyond the standard model. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A, B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access
| Author | : D. J. Hepburn |
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| Release | : 2004 |
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| Author | : Derek John Hepburn |
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| Release | : 2004 |
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| Author | : Joyce Garden |
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| Release | : 2000 |
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| Author | : Anthony M Green |
| Publisher | : World Scientific |
| Total Pages | : 385 |
| Release | : 2004-10-07 |
| Genre | : Science |
| ISBN | : 9814481920 |
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.
