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

Elastic s-wave B pi, D pi, D K and K pi scattering from lattice calculations of scalar form factors in semileptonic decays
Elastic s-wave B pi, D pi, D K and K pi scattering from lattice calculations of scalar form factors in semileptonic decays
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).
1550-7998
074024-[8pp]
Flynn, Jonathan M.
d8e90963-ba56-415c-bbd4-496b7d91d343
Nieves, Juan
7d5cbd0b-f25d-44f0-be50-fdecb2e54bfe
Flynn, Jonathan M.
d8e90963-ba56-415c-bbd4-496b7d91d343
Nieves, Juan
7d5cbd0b-f25d-44f0-be50-fdecb2e54bfe

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).

Record type: Article

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).

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Published date: 2007

Identifiers

Local EPrints ID: 57249
URI: https://eprints.soton.ac.uk/id/eprint/57249
ISSN: 1550-7998
PURE UUID: e0077223-0505-4dbd-9a8e-73461941b3d3
ORCID for Jonathan M. Flynn: ORCID iD orcid.org/0000-0002-6280-1677

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Date deposited: 14 Aug 2008
Last modified: 14 Mar 2019 01:53

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