Kπ form factors, final state interactions and D+ -> π+π+ decays
Boito, Diogo (Institut de Física d'Altes Energies)
Escribano, Rafel (Universitat Autònoma de Barcelona. Departament de Física)

Date:	2010
Abstract:	We present a model for the decay D+ → K−π+π+. The weak interaction part of this reaction is described using the effective weak Hamiltonian in the factorisation approach. Hadronic final state interactions are taken into account through the Kπ scalar and vector form factors fulfilling analyticity, unitarity and chiral symmetry constraints. Allowing for a global phase difference between the S and P waves of −65◦, the Dalitz plot of the D+ → K−π+π+ decay, the Kπ invariant mass spectra and the total branching ratio due to S-wave interactions are well reproduced.
Grants:	Ministerio de Educación y Ciencia CSD2007-00042 Ministerio de Ciencia e Innovación FPA2008-01430 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-00894
Note:	Altres ajuts: this work has been supported in part under the EU Contract No. MRTN-CT-2006-035482 "FLAVIAnet"
Note:	Contribution to International Conference on Hadron Spectroscopy (HADRON09), Florida State University (Tallahassee), USA, 29.11-4.12.2009
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	D-decays ; K π form factors ; Final state interactions
Published in:	AIP Conference Proceegings, Vol. 1257 (2010), p. 370-374, ISSN 1551-7616

Adreça alternativa: https://arxiv.org/abs/1003.5232v1
DOI: 10.1063/1.3483352

Postprint 6 p, 384.8 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Institut de Física d’Altes Energies (IFAE)
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Articles > Published articles