A feasibility study of the measurement of kaonic lead X-rays at DAΦNE for the precise determination of the charged kaon mass

D. Bosnar, L. Abbene, C. Amsler, F. Artibani, M. Bazzi, M. Bragadireanu, A. Buttacavoli, M. Cargnelli, M. Carminati, A. Clozza, F. Clozza, G. Deda, L. De Paolis, R. Del Grande, K. Dulski, L. Fabbietti, C. Fiorini, I. Friščić, C. Guaraldo, M. IliescuM. Iwasaki, A. Khreptak, M. Makek, S. Manti, J. Marton, P. Moskal, F. Napolitano, S. Niedźwiecki, H. Ohnishi, K. Piscicchia, A. Scordo, F. Sgaramella, D. Sirghi, F. Sirghi, M. Skurzok, M. Silarski, A. Spallone, K. Toho, M. Tüchler, O. Vasquez Doce, J. Zmeskal, C. Curceanu

Research output: Contribution to journalArticlepeer-review

Abstract

An HPGe detector equipped with a transistor reset preamplifier and readout with a CAEN DT5781 fast pulse digitizer was employed in the measurement of X-rays from kaonic lead at the DAΦNE e+e collider at the Laboratori Nazionali di Frascati of INFN. A thin scintillator in front of a lead target was used to select kaons impinging on it and to form the trigger for the HPGe detector. We present the results of the kaonic lead feasibility measurement, where we show that the resolution of the HPGe detector in regular beam conditions remains the same as that without the beam and that a satisfactory background reduction can be achieved. This measurement serves as a test bed for future dedicated kaonic X-rays measurements for the more precise determination of the charged kaon mass.

Original languageEnglish
Article number169966
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume1069
DOIs
StatePublished - Dec 2024
Externally publishedYes

Keywords

  • Charged kaon mass
  • Fast pulse digitizer
  • HPGe detector
  • Kaonic atoms

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