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.
@article{arxiv.2405.12942,
title = {Kaonic lead feasibility measurement at DA{\Phi}NE to solve the charged kaon mass discrepancy},
author = {D. Bosnar and L. Abbene and C. Amsler and F. Artibani and M. Bazzi and M. Bragadireanu and A. Buttacavoli and M. Cargnelli and M. Carminati and A. Clozza and F. Clozza and G. Deda and L. De Paolis and R. Del Grande and K. Dulski and L. Fabbietti and C. Fiorini and I. Friščić and C. Guaraldo and M. Iliescu and M. Iwasaki and A. Khreptak and M. Makek and S. Manti and J. Marton and P. Moskal and F. Napolitano and S. Niedźwiecki and H. Ohnishi and K. Piscicchia and A. Scordo and F. Sgaramella and D. Sirghi and F. Sirghi and M. Skurzok and M. Silarski and A. Spallone and K. Toho and M. Tüchler and O. Vasquez Doce and J. Zmeskal and C. Curceanu},
journal= {arXiv preprint arXiv:2405.12942},
year = {2024}
}