2026-06-27T23:49:54Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/439372023-08-27T07:36:36Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Llanes Estrada, Felipe José
author
Guo, F.-K
author
Hanhart, C
author
Meißner, U.-G
2023-06-20T03:34:43Z
2023-06-20T03:34:43Z
2011-09-20
0370-2693
10.1016/j.physletb.2011.08.022
https://hdl.handle.net/20.500.14352/43937
http://dx.doi.org/10.1016/j.physletb.2011.08.022
http://arxiv.org/abs/1105.3366http://www.sciencedirect.com
Hadron masses show a specific dependence on the quark masses. Therefore, the variation of these masses can cause a resonance in a hadronic scattering amplitude to become a bound state. Consequently, the amplitude exhibits a non analytic behavior at this transition. Crossed amplitudes, where the resonance can be exchanged in the t-channel, can be shown to exhibit the same phenomenon by s --> t analytic continuation. This entails possible kinks in lattice quark-mass extrapolations needed to compute hadronic observables.
eng
When hadrons become unstable: a novel type of non-analyticity in chiral extrapolations.
journal article
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Llanes-Estrada_FJ09.pdf
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Llanes-Estrada_FJ09preprint.pdf
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Llanes-Estrada_FJ09preprint.pdf.txt