scholarly journals Scalar resonances in the D+→K−K+K+ decay

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
L. Roca ◽  
E. Oset
Keyword(s):  
Scalar Resonances

scholarly journals NEW PARAMETERIZATION OF THE RESONANT PRODUCTION AMPLITUDES NEAR AN INELASTIC THRESHOLD

2009 ◽  
Vol 24 (02n03) ◽  
pp. 549-552 ◽  
Author(s):  
LEONARD LEŚNIAK
Keyword(s):  
Data Analysis ◽  
Mass Spectra ◽  
Resonant Scattering ◽  
Resonance Pole ◽  
Inelastic Threshold ◽  
Production Processes ◽  
Resonance Properties ◽  
Resonant Production ◽  
Watson Theorem ◽  
Scalar Resonances

New formulae for the resonant scattering and the production amplitudes near an inelastic threshold are derived. It is shown that the Flatté formula, frequently used in experimental analyses, is not sufficiently accurate. Its application to data analysis can lead to a substantial distortion of the effective mass spectra and of the resonance pole positions. A unitary parameterization, satisfying a generalized Watson theorem for the production amplitudes, is proposed. It can be easily applied to study production processes, multichannel meson-meson interactions and the resonance properties, including among others the scalar resonances a0(980) and f0(980).

scholarly journals Parameters of scalar resonances from the combined analysis of data on processesππ→ππ,KK¯,ηηandJ/ψdecays

2014 ◽  
Vol 89 (3) ◽  
Author(s):  
Yurii S. Surovtsev ◽  
Petr Bydžovský ◽  
Robert Kamiński ◽  
Valery E. Lyubovitskij ◽  
Miroslav Nagy
Keyword(s):  
Combined Analysis ◽  
Scalar Resonances

Scalar resonances in Goldstone boson scattering

1992 ◽  
Vol 372 (1-2) ◽  
pp. 44-60 ◽  
Author(s):  
R. Sekhar Chivukula ◽  
Mitchell Golden
Keyword(s):  
Goldstone Boson ◽  
Scalar Resonances

Scalar resonances: Chiral Breit-Wigner expressions

2006 ◽  
Vol 73 (3) ◽  
Author(s):  
L. O. Arantes ◽  
M. R. Robilotta
Keyword(s):  
Scalar Resonances

scholarly journals Scalar resonances in axially symmetric spacetimes

2015 ◽  
Vol 24 (05) ◽  
pp. 1550037
Author(s):  
Ignacio F. Ranea-Sandoval ◽  
Héctor Vucetich
Keyword(s):  
Wave Equation ◽  
Scalar Wave ◽  
Axially Symmetric ◽  
Closed Timelike Curves ◽  
Scalar Wave Equation ◽  
Kerr Spacetime ◽  
Symmetric Spacetimes ◽  
Resonant Modes ◽  
Unstable Solutions ◽  
Scalar Resonances

We study properties of resonant solutions to the scalar wave equation in several axially symmetric spacetimes. We prove that nonaxial resonant modes do not exist neither in the Lanczos dust cylinder, the extreme (2 + 1) dimensional Bañados–Taitelboim–Zanelli (BTZ) spacetime nor in a class of simple rotating wormhole solutions. Moreover, we find unstable solutions to the wave equation in the Lanczos dust cylinder and in the r2 < 0 region of the extreme (2 + 1) dimensional BTZ spacetime, two solutions that possess closed timelike curves. Similarities with previous results obtained for the Kerr spacetime are explored.

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