The yield of kaonic hydrogen X-rays in the SIDDHARTA experiment

oleh: Shi H., Bazzi M., Beer G., Berucci C., Bragadireanu A.M., Cargnelli M., Curceanu C., d’Uffizi A., Fiorini C., Ghio F., Guaraldo C., Hayano R.S., Iliescu M., Ishiwatari T., Iwasaki M., Kienle P., Levi Sandri P., Marton J., Okada S., Pietreanu D., Piscicchia K., Ponta T., Quaglia R., Romero Vidal A., Sbardella E., Scordo A., Sirghi D.L., Sirghi F., Tatsuno H., Vazquez Doce O., Widmann E., Zmeskal J.

Format: Article
Diterbitkan: EDP Sciences 2014-03-01

Deskripsi

We measured K-series kaonic hydrogen X-rays in the SIDDHARTA experiment performed at the DAΦNE electron-positron collider of Laboratori Nazionali di Frascati. With a gaseous hydrogen target of density 15 ρSTP, preliminary values of the absolute yields, defined as the number of atomic X-rays emitted per kaon stopped inside the target, were determined to be 0.012−0.004+0.003 for Kα transition and 0.045−0.012+0.009 for Ktot, the summation of all the emitted K-series transitions.