Elastic s-wave B pi, D pi, D K and K pi scattering from lattice calculations of scalar form factors in semileptonic decays


Flynn, Jonathan M. and Nieves, Juan (2007) Elastic s-wave B pi, D pi, D K and K pi scattering from lattice calculations of scalar form factors in semileptonic decays. Physical Review D, 75, (7), 074024-[8pp]. (doi:10.1103/PhysRevD.75.074024).

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Description/Abstract

We show how theoretical, principally lattice calculations of the scalar form factors in semileptonic pseudoscalar-to-pseudoscalar decays can be used to extract information about the corresponding elastic s-wave scattering channels. We find values for the scattering lengths mpia=0.179(17)(14), 0.26(26) and 0.29(4) for elastic s-wave isospin-1/2 Kpi, Bpi and Dpi channels, respectively. We also determine phase shifts. For the DK channel we find hints that there is a bound state which can be identified with the recently discovered Ds0+(2317).

Item Type: Article
ISSNs: 1550-7998 (print)
Related URLs:
Subjects: Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Physics and Astronomy
ePrint ID: 57249
Date Deposited: 14 Aug 2008
Last Modified: 27 Mar 2014 18:39
URI: http://eprints.soton.ac.uk/id/eprint/57249

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