Hauptseite > Publikationsdatenbank > Finite volume effects in pion-kaon scattering and reconstruction of the kappa (800) resonance > print

001     127616
005     20240610121302.0
024 7 _ |a 10.1007/JHEP01(2012)009
|2 doi
024 7 _ |a 1029-8479
|2 ISSN
024 7 _ |a 1126-6708
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024 7 _ |a WOS:000300181800009
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024 7 _ |a arXiv:1111.0616
|c hep-lat
|2 arXiv
024 7 _ |a 2128/13286
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035 _ _ |9 arXiv
|a arXiv:1111.0616
|c hep-lat
037 _ _ |a FZJ-2012-00574
082 _ _ |a 530
100 1 _ |a Döring, M.
|0 P:(DE-Juel1)VDB73164
|b 0
|e Corresponding author
245 _ _ |a Finite volume effects in pion-kaon scattering and reconstruction of the kappa (800) resonance
260 _ _ |a Berlin
|c 2012
|b Springer
336 7 _ |a article
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336 7 _ |a ARTICLE
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336 7 _ |a Journal Article
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500 _ _ |9 arXiv
|a 31 pages, 14 figures
520 _ _ |9 arXiv
|a Simulating the kappa(800) on the lattice is a challenging task that starts to become feasible due to the rapid progress in recent-years lattice QCD calculations. As the resonance is broad, special attention to finite-volume effects has to be paid, because no sharp resonance signal as from avoided level crossing can be expected. In the present article, we investigate the finite volume effects in the framework of unitarized chiral perturbation theory using next-to-leading order terms. After a fit to meson-meson partial wave data, lattice levels for piK scattering are predicted. In addition, levels are shown for the quantum numbers in which the sigma(600), f_0(980), a_0(980), phi(1020), K*(892), and rho(770) appear, as well as the repulsive channels. Methods to extract the kappa(800) signal from the lattice spectrum are presented. Using pseudo-data, we estimate the precision that lattice data should have to allow for a clear-cut extraction of this resonance. To put the results into context, in particular the required high precision on the lattice data, the sigma(600), the P-wave resonances K*(892) and rho(770), and the repulsive piK, pipi phases are analyzed as well.
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650 _ 7 |a finite size: effect
|2 INSPIRE
650 _ 7 |a perturbation theory: chiral
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650 _ 7 |a higher-order: 1
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650 _ 7 |a pi K: scattering
|2 INSPIRE
650 _ 7 |a kappa meson
|2 INSPIRE
650 _ 7 |a quantum number
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650 _ 7 |a partial wave
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650 _ 7 |a low-energy constant
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650 _ 7 |a pi K: phase shift
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650 _ 7 |a pi pi: phase shift
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650 _ 7 |a K*(892)
|2 INSPIRE
650 _ 7 |a rho(770)
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650 _ 7 |a numerical calculations
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700 1 _ |a Meißner, U.-G.
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773 _ _ |a 10.1007/JHEP01(2012)009
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|t Journal of high energy physics
|v 1201
|y 2012
856 4 _ |y OpenAccess
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