Dalitz plot analysis of the $D^+\to K^-K^+K^+$ decay

Peter Clarke; Greig Cowan; R. Currie; Stephan Eisenhardt; Silvia Gambetta; Franz Muheim; Matthew Needham; Marco Pappagallo; Stephen Playfer; Mark Williams; LHCb Collaboration

doi:10.1007/JHEP04(2019)063

Dalitz plot analysis of the $D^+\to K^-K^+K^+$ decay

Peter Clarke, Greig Cowan, R. Currie, Stephan Eisenhardt, Silvia Gambetta, Franz Muheim, Matthew Needham, Marco Pappagallo, Stephen Playfer, Mark Williams, LHCb Collaboration

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

The resonant structure of the doubly Cabibbo-suppressed decay $D^+ \to K^-K^+K^+$ is studied for the first time. The measurement is based on a sample of pp-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$^-1$. 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 $K^-K^+$ system is dominant, with a small contribution of the $\phi(1020)$ meson and a negligible contribution from tensor resonances. The $K^-K^+$ 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.

Original language	English
Article number	Aaij:2019lwx
Pages (from-to)	063
Journal	Journal of High Energy Physics
Volume	1904
DOIs	https://doi.org/10.1007/JHEP04(2019)063
Publication status	Published - 8 Apr 2019

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title = "Dalitz plot analysis of the $D^+\to K^-K^+K^+$ decay",

abstract = "The resonant structure of the doubly Cabibbo-suppressed decay $D^+ \to K^-K^+K^+$ is studied for the first time. The measurement is based on a sample of pp-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$^-1$. 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 $K^-K^+$ system is dominant, with a small contribution of the $\phi(1020)$ meson and a negligible contribution from tensor resonances. The $K^-K^+$ 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.",

author = "Peter Clarke and Greig Cowan and R. Currie and Stephan Eisenhardt and Silvia Gambetta and Franz Muheim and Matthew Needham and Marco Pappagallo and Stephen Playfer and Mark Williams and LHCb Collaboration",

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doi = "10.1007/JHEP04(2019)063",

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T1 - Dalitz plot analysis of the $D^+\to K^-K^+K^+$ decay

AU - Clarke, Peter

AU - Cowan, Greig

AU - Currie, R.

AU - Eisenhardt, Stephan

AU - Gambetta, Silvia

AU - Muheim, Franz

AU - Needham, Matthew

AU - Pappagallo, Marco

AU - Playfer, Stephen

AU - Williams, Mark

AU - Collaboration, LHCb

PY - 2019/4/8

Y1 - 2019/4/8

N2 - The resonant structure of the doubly Cabibbo-suppressed decay $D^+ \to K^-K^+K^+$ is studied for the first time. The measurement is based on a sample of pp-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$^-1$. 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 $K^-K^+$ system is dominant, with a small contribution of the $\phi(1020)$ meson and a negligible contribution from tensor resonances. The $K^-K^+$ 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.

AB - The resonant structure of the doubly Cabibbo-suppressed decay $D^+ \to K^-K^+K^+$ is studied for the first time. The measurement is based on a sample of pp-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$^-1$. 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 $K^-K^+$ system is dominant, with a small contribution of the $\phi(1020)$ meson and a negligible contribution from tensor resonances. The $K^-K^+$ 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.

U2 - 10.1007/JHEP04(2019)063

DO - 10.1007/JHEP04(2019)063

M3 - Article

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VL - 1904

SP - 063

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

M1 - Aaij:2019lwx

ER -

Dalitz plot analysis of the $D^+\to K^-K^+K^+$ decay

Abstract

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