Dalitz plot analysis of the D+ → K−K+K+ decay



Aaij, R, Abellán Beteta, C, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F
et al (show 841 more authors) (2019) Dalitz plot analysis of the D+ → K−K+K+ decay. Journal of High Energy Physics, 2019 (4).

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Abstract

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>The resonant structure of the doubly Cabibbo-suppressed decay <jats:italic>D</jats:italic> <jats:sup>+</jats:sup>→<jats:italic>K</jats:italic> <jats:sup>−</jats:sup> <jats:italic>K</jats:italic> <jats:sup>+</jats:sup> <jats:italic>K</jats:italic> <jats:sup>+</jats:sup> is studied for the first time. The measurement is based on a sample of <jats:italic>pp</jats:italic>-collision data, collected at a centre-of-mass energy of 8 TeV with the LHCb detector and corresponding to an integrated luminosity of 2 fb<jats:sup>−1</jats:sup>. The amplitude analysis of this decay is performed with the isobar model and a phenomenological model based on an effective chiral Lagrangian. In both models the S-wave component in the <jats:italic>K</jats:italic> <jats:sup>−</jats:sup> <jats:italic>K</jats:italic> <jats:sup>+</jats:sup> system is dominant, with a small contribution of the <jats:italic>ϕ</jats:italic>(1020) meson and a negligible contribution from tensor resonances. The <jats:italic>K</jats:italic> <jats:sup>+</jats:sup> <jats:italic>K</jats:italic> <jats:sup>−</jats:sup> scattering amplitudes for the considered combinations of spin (0,1) and isospin (0,1) of the two-body system are obtained from the Dalitz plot fit with the phenomenological decay amplitude. </jats:p>

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 04 Dec 2019 15:52
Last Modified: 09 Nov 2021 08:25
DOI: 10.1007/jhep04(2019)063
Open Access URL: https://doi.org/10.1007/JHEP04(2019)063
URI: https://livrepository.liverpool.ac.uk/id/eprint/3064818