Comunicazione
Nuclear resosnance effects in kaonic atoms.
De Paolis L., Curceanu C., Bazzi M., Bosnar D., Bragadireanu M., Cargnelli M., Clozza A., Del Grande R., Friscic I., Guaraldo C., Iliescu M., Miliucci M., Napolitano F., Piscicchia K., Scordo A., Sgaramella F., Shi H., Sirghi D., Sirghi F., Sławomir W., Skurzok M., Tuchler M., Zmeskal J.
The nuclear $E2$ resonance effect occurs when atomic de-excitation energy is closely matched by nuclear excitation energy. It produces an attenuation of some of the atomic x-ray lines from resonant $vs.$ normal isotope targets. The investigation of the nuclear $E2$ resonance effect in kaonic ticklish atoms could provide important information about strong kaon nucleus interaction. In four kaonic molybdenum isotopes (molybdenum-94, -96, -98 and -100), the nuclear $E2$ resonance effect is expected at the same transition and could be studied in DAFNE during the SIDDHARTA-2 experiment. The aim is to exploit the negatively charged kaons emitted by the DAFNE $e^{+}e^{-}$ collider in the horizontal direction, not collected by the SIDDHARTA-2 experiment. Four solid strip targets each enriched with one molybdenum isotope could be exposed to negatively charged kaons, using a germanium detector for x-ray transition measurements. A solid strip target of molybdenum-92, in which nuclear $E2$ resonance effect does not occur, would be used as a reference for standard yield transition. This experiment represents a unique opportunity to study kaon-nucleus strong interaction in kaonic ticklish nuclei.