Scattering of unstable particles in a finite volume: The case of pi rho scattering and the a(1)(1260) resonance
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Scattering of unstable particles in a finite volume: The case of pi rho scattering and the a(1)(1260) resonance

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Scattering of unstable particles in a finite volume: The case of pi rho scattering and the a(1)(1260) resonance

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dc.contributor.author Roca Zamora, Luis
dc.contributor.author Oset Báguena, Eulogio
dc.date.accessioned 2015-08-19T11:18:17Z
dc.date.available 2015-08-19T11:18:17Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/10550/46679
dc.description.abstract We present a way to evaluate the scattering of unstable particles quantized in a finite volume with the aim of extracting physical observables for infinite volume from lattice data. We illustrate the method with the πρ scattering which generates dynamically the axial-vector a1(1260) resonance. Energy levels in a finite box are evaluated both considering the ρ as a stable and unstable resonance and we find significant differences between both cases. We discuss how to solve the problem to get the physical scattering amplitudes in the infinite volume, and hence phase shifts, from possible lattice results on energy levels quantized inside a finite box.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2012, vol. 85, num. 5, p. 054507
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Roca Zamora, Luis Oset Báguena, Eulogio 2012 Scattering of unstable particles in a finite volume: The case of pi rho scattering and the a(1)(1260) resonance Physical Review D 85 5 054507
dc.subject Física
dc.title Scattering of unstable particles in a finite volume: The case of pi rho scattering and the a(1)(1260) resonance
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-08-19T11:18:17Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.85.054507
dc.identifier.idgrec 080195

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