Study of the S-wave K? {u2192} Amplitude Using the Decay D+ {u2192} K-?+?+. PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages : 145
Book Description
In this work the S-wave component of the K? amplitude from decay of D+ → K+?+?+ it is directly measured. The data come from the Fermilab E831/FOCUS experiment. The amplitude measurement is made using the partial wave analysis without any preliminary assumption about the nature of the S-wave component of the K? system. The phase and magnitude of the S-wave amplitude are generic functions to be determined directly through the Dalitz plot fit. For the sake of comparison, our results the same decay is analyzed using the isobar model, which is the standard way to analyze the Dalitz plot. The data fit obtained with the partial wave analysis is better than the data fit from the isobar model. The phase variation with respect to the invariant mass K? is compared with the measurement of the phase ?$0top{I=1/2}$ (mK?) from K? → K? scattering. The difference between both analysis is discussed considering: a difference in the composition of the isospin components I = 1/2 and I = 3/2 of the K? system between D+ decay and the K? → K? scattering; and the final state interaction involving all particles from decay.
Author: Publisher: ISBN: Category : Languages : en Pages : 145
Book Description
In this work the S-wave component of the K? amplitude from decay of D+ → K+?+?+ it is directly measured. The data come from the Fermilab E831/FOCUS experiment. The amplitude measurement is made using the partial wave analysis without any preliminary assumption about the nature of the S-wave component of the K? system. The phase and magnitude of the S-wave amplitude are generic functions to be determined directly through the Dalitz plot fit. For the sake of comparison, our results the same decay is analyzed using the isobar model, which is the standard way to analyze the Dalitz plot. The data fit obtained with the partial wave analysis is better than the data fit from the isobar model. The phase variation with respect to the invariant mass K? is compared with the measurement of the phase ?$0top{I=1/2}$ (mK?) from K? → K? scattering. The difference between both analysis is discussed considering: a difference in the composition of the isospin components I = 1/2 and I = 3/2 of the K? system between D+ decay and the K? → K? scattering; and the final state interaction involving all particles from decay.
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Author: Lauren Martin