Dispersion-theoretical analysis of the D + → K − π + π + Dalitz plot

Niecknig, Franz; Kubis, Bastian

doi:10.1007/jhep10(2015)142

Cited by 62 publications

(53 citation statements)

References 76 publications

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“…The K − π + FSI in the D + → K − π + π + data of the E791 Collaboration has been the subject of many studies using different effective hadronic formalism approaches [15,16,17,18,19]. In Ref.…”

Section: Final-state Interaction Constraints 21 Different Effective mentioning

confidence: 99%

“…In Ref. [18] a full dispersive Khuri-Treiman formalism is applied, resumming rescattering contributions to all orders using ππ and πK phase shifts as input, and fitting subtraction constants to the experimental Dalitz plots from CLEO and FOCUS. S. X. Nakamura [19] has performed a coupled-channel analysis of pseudo-data generated from the isobar model of the E791 Collaboration.…”

Section: Final-state Interaction Constraints 21 Different Effective mentioning

confidence: 99%

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Theory overview on amplitude analyses with charm decays

Loiseau¹

2017

Proceedings of VIII International Workshop on Charm Physics — PoS(CHARM2016)

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This contribution about amplitude analyses in multibody hadronic charm decays deals with some attempts to introduce theoretical constraints. Different effective hadronic formalism approaches are mentioned. A recent work, based on a basic weak interaction process and a Chiral unitary model to account for the final state interaction, is described in details for the f 0 (980) production inWithin the framework of the diagrammatic approach and flavor symmetry, a global analysis of two-body D decays into a vector meson and a pseudoscalar meson is presented. A quasi-two-body QCD factorization model for D decays into three mesons and its recent application to D 0 → K 0 S π + π − is outlined. For processes with finalstate pions and kaons and as an alternative to the sum of Breit-Wigner amplitudes, often used in experimental Dalitz-plot analyses, amplitude parametrizations, in term of unitary ππ, πK and KK form factors, are proposed. These parametrizations are derived from quasi-two-body factorization models.

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Section: Final-state Interaction Constraints 21 Different Effective mentioning

confidence: 99%

Section: Final-state Interaction Constraints 21 Different Effective mentioning

confidence: 99%

Theory overview on amplitude analyses with charm decays

Loiseau¹

2017

Proceedings of VIII International Workshop on Charm Physics — PoS(CHARM2016)

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“…The analysis of the K − π + π + final state produced in D + decays performed in Ref. [14] is more complicated because it includes 8 scattering amplitudes.…”

Section: Systematic Approach To Rescatteringmentioning

confidence: 99%

“…Consider the part of the amplitude which corresponds to the production of the interacting pair π 2 π 3 . Without rescattering this amplitude would be t This approach has already been successfully applied to several reactions [15,16,17,14]; the complexity of the model is currently being increased continuously. The first two items summarize the recent achievements, the further items represent our ideas to proceed:…”

Section: Systematic Approach To Rescatteringmentioning

confidence: 99%

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Beyond the isobar model: Rescattering in the system of three particles.

Mikhasenko¹,

Ketzer²

2016

Proceedings of 54th International Winter Meeting on Nuclear Physics — PoS(BORMIO2016)

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The isobar model is an essential part of partial wave analyses (PWA) of multi-body hadronic final states. In the isobar model, all final states are described as sequential two-body decays of intermediate resonances. It turned out to work surprisingly well in the past, despite the fact that it neglects rescattering, i.e. interactions in the final state. With the advent of data samples of extremely high statistical significance from ongoing experiments, effects due to final state interactions may become important in order to understand the data. We discuss the example of the recently observed a 1 (1420) in the 3π final state using PWA techniques. In our model, we interpret the signal as a result of rescattering in the final state. In the presence of coupled πππ / KKπ channels, final-state interaction causes a redistribution of events between the πππ and KKπ systems. We compare our interpretation to the genuine resonance hypothesis and discuss a sophisticated approach to clarify the nature of the signal.

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Patterns of C- and CP-violation in hadronic η and η′ three-body decays

Akdag¹,

Isken

Kubis³

2022

J. High Energ. Phys.

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We construct hadronic amplitudes for the three-body decays η(′) → π+π−π0 and η′ → ηπ+π− in a non-perturbative fashion, allowing for C- and CP-violating asymmetries in the π+π− distributions. These amplitudes are consistent with the constraints of analyticity and unitarity. We find that the currently most accurate Dalitz-plot distributions taken by the KLOE-2 and BESIII collaborations confine the patterns of these asymmetries to a relative per mille and per cent level, respectively. Our dispersive representation allows us to extract the individual coupling strengths of the C- and CP-violating contributions arising from effective isoscalar and isotensor operators in η(′) → π+π−π0 and an effective isovector operator in η′ → ηπ+π−, while the strongly different sensitivities to these operators can be understood from chiral power counting arguments.

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Dispersion-theoretical analysis of the D + → K − π + π + Dalitz plot

Cited by 62 publications

References 76 publications

Theory overview on amplitude analyses with charm decays

Theory overview on amplitude analyses with charm decays

Beyond the isobar model: Rescattering in the system of three particles.

Patterns of C- and CP-violation in hadronic η and η′ three-body decays

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