X-ray transition yields of low-Z kaonic atoms produced in Kapton

M. Bazzi , G. Beer , C. Berucci , L. Bombelli , A.M. Bragadireanu , M. Cargnelli , C. Curceanu , A. d'Uffizi

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C. Fiorini F. Ghio C. Guaraldo R.S. Hayano M. Iliescu T. Ishiwatari M. Iwasaki P. Kienle P. Levi Sandri A. Longoni J. Marton S. Okada D. Pietreanu T. Ponta R. Quaglia A. Romero Vidal E. Sbardella A. Scordo H. Shi D.L. Sirghi F. Sirghi H. Tatsuno A. Tudorache V. Tudorache O. Vazquez Doce E. Widmann J. Zmeskal (SIDDHARTA collaboration)

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keywords atomskaonicx-rayyieldskaptonproducedweredetermined

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The X-ray transition yields of kaonic atoms produced in Kapton polyimide (C22H10N2O5) were measured for the first time in the SIDDHARTA experiment. X-ray yields of the kaonic atoms with low atomic numbers (Z = 6, 7, and 8) and transitions with high principal quantum numbers (n = 5-8) were determined. The relative yield ratios of the successive transitions and those of carbon-to-nitrogen (C:N) and carbon-to-oxygen (C:O) were also determined. These X-ray yields provide important information for understanding the capture ratios and cascade mechanisms of kaonic atoms produced in a compound material, such as Kapton.

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X-ray transition yields of low-Z kaonic atoms produced in Kapton

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