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Study of Belle Search Motivation for Mass Measurement and Confirmation of BaBar Observations

This study focuses on measuring 111 mass with high accuracy, including systematic uncertainties. It aims to confirm the observation made by the BaBar experiment, specifically in relation to the decay properties analogous to the DsJ decay where isospin violation was previously noted by BaBar, CLEO, and Belle. The research covers various decay diagrams and reconstruction techniques, including Gaussian and Crystal Ball fitting for better analysis. Results will contribute to understanding particle decay and interactions.

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Study of Belle Search Motivation for Mass Measurement and Confirmation of BaBar Observations

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Presentation Transcript

  1. Study of and at Belle

  2. Search Motivation • To measure 111 mass with the best accuracy, including systematics; • To confirm BaBar observation of ; • Analogue with DsJ decay with isospin violation was observed byBaBaR, CLEO, Belle

  3. Properties

  4. Decay Diagrams s s s u s s s c d u s d d calibration modes s s u c s u s s s u c s s d d u s

  5. Reconstruction ffit=Gaussian+P3

  6. Reconstruction ffit=Gaussian+P3

  7. Properties

  8. Reconstruction ffit=Crystal Ball+P3•arctg

  9. Summary

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