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

The LHCb Collaboration, Alexander Rudolfovich Wagner

Research output: Contribution to journalArticle

Abstract

The resonant structure of the doubly Cabibbo-suppressed decay D + →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 ϕ(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.[Figure not available: see fulltext.].

Original languageEnglish
Article number63
JournalJournal of High Energy Physics
Volume2019
Issue number4
DOIs
Publication statusPublished - 1 Apr 2019

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plots
decay
isobars
scattering amplitude
S waves
center of mass
mesons
luminosity
tensors
collisions
detectors
energy

Keywords

  • Charm physics
  • Hadron-Hadron scattering (experiments)
  • Particle and resonance production

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Dalitz plot analysis of the D + → K K + K + decay. / The LHCb Collaboration ; Wagner, Alexander Rudolfovich.

In: Journal of High Energy Physics, Vol. 2019, No. 4, 63, 01.04.2019.

Research output: Contribution to journalArticle

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abstract = "The resonant structure of the doubly Cabibbo-suppressed decay D + →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 ϕ(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.[Figure not available: see fulltext.].",
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AU - Adinolfi, M.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

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AU - Arnau Romeu, J.

AU - Artamonov, A.

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AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

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AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Batozskaya, V.

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AU - Wagner, Alexander Rudolfovich

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N2 - The resonant structure of the doubly Cabibbo-suppressed decay D + →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 ϕ(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.[Figure not available: see fulltext.].

AB - The resonant structure of the doubly Cabibbo-suppressed decay D + →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 ϕ(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.[Figure not available: see fulltext.].

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KW - Hadron-Hadron scattering (experiments)

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