Search Results for author: A. P. Szczepaniak

Found 4 papers, 4 papers with code

Dalitz-plot decomposition for three-body decays

2 code implementations10 Oct 2019 JPAC Collaboration, M. Mikhasenko, M. Albaladejo, L. Bibrzycki, C. Fernandez-Ramirez, V. Mathieu, S. Mitchell, M. Pappagallo, A. Pilloni, D. Winney, T. Skwarnicki, A. P. Szczepaniak

We present a general formalism to write the decay amplitude for multibody reactions with explicit separation of the rotational degrees of freedom, which are well controlled by the spin of the decay particle, and dynamic functions on the subchannel invariant masses, which require modeling.

High Energy Physics - Phenomenology

Khuri-Treiman equations for $3π$ decays of particles with spin

1 code implementation7 Oct 2019 JPAC Collaboration, M. Albaladejo, D. Winney, I. V. ~Danilkin, C. Fernandez-Ramirez, V. Mathieu, M. Mikhasenko, A. Pilloni, J. A. Silva-Castro, A. P. Szczepaniak

Khuri-Treiman equations have proven to be a useful theoretical tool in the analysis of 3-body decays, specially into the $3\pi$ final state.

High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory Nuclear Theory

What is the right formalism to search for resonances?

1 code implementation7 Dec 2017 JPAC Collaboration, M. Mikhasenko, A. Pilloni, J. Nys, M. Albaladejo, C. Fernandez-Ramirez, A. Jackura, V. Mathieu, N. Sherrill, T. Skwarnicki, A. P. Szczepaniak

We study the analytical properties of the spin-orbit (LS) formalism, and some of the covariant tensor approaches.

High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory

Theoretical model of the phi meson photoproduction amplitudes

2 code implementations1 Apr 2003 L. Lesniak, A. P. Szczepaniak

P-wave amplitudes for elastic K+ K- photoproduction on hydrogen near the phi(1020) resonance have been derived in an analytical form and a partial wave decomposition of the amplitudes has been performed.

High Energy Physics - Phenomenology

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