New opportunities for kaonic atoms measurements from CdZnTe detectors

Autor(en)

L. Abbene, M. Bettelli, A. Buttacavoli, F. Principato, A. Zappettini, C. Amsler, M. Bazzi, D. Bosnar, M. Bragadireanu, M. Cargnelli, M. Carminati, A. Clozza, G. Deda, L. De Paolis, R. Del Grande, L. Fabbietti, C. Fiorini, I. Friščić, C. Guaraldo, M. Iliescu, M. Iwasaki, A. Khreptak, S. Manti, J. Marton, M. Miliucci, P. Moskal, F. Napolitano, S. Niedźwiecki, H. Ohnishi, K. Piscicchia, Y. Sada, F. Sgaramella, H. Shi, M. Silarski, D. L. Sirghi, F. Sirghi, M. Skurzok, A. Spallone, K. Toho, M. Tüchler, O. Vazquez Doce, C. Yoshida, J. Zmeskal, A. Scordo, C. Curceanu

Abstrakt

We present the tests performed by the SIDDHARTA-2 collaboration at the DA Φ NE collider with a quasi-hemispherical CdZnTe detector. The very good room-temperature energy resolution and efficiency in a wide energy range show that this detector technology is ideal for studying radiative transitions in intermediate and heavy mass kaonic atoms. The CdZnTe detector was installed for the first time in an accelerator environment to perform tests on the background rejection capabilities, which were achieved by exploiting the SIDDHARTA-2 Luminosity Monitor. A spectrum with an ²⁴¹Am source has been acquired, with beams circulating in the main rings, and peak resolutions of 6% at 60 keV and of 2.2% at 511 keV have been achieved. The background suppression factor, which turned out to be of the order of ≃ 10 ^{5 - 6} , opens the possibility to plan for future kaonic atom measurements with CdZnTe detectors.

Organisation(en)

Fakultät für Physik

Externe Organisation(en)

Università degli Studi di Palermo, Consiglio Nazionale delle Ricerche, Österreichische Akademie der Wissenschaften (ÖAW), INFN - Laboratori Nazionali Di Frascati, University of Zagreb, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Politecnico di Milano, Technische Universität München, RIKEN, Jagiellonian University in Krakow, Tohoku University, Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi

Journal

European Physical Journal: Special Topics

Band

232

Seiten

1487–1492

Anzahl der Seiten

6

ISSN

1951-6355

DOI

https://doi.org/10.1140/epjs/s11734-023-00881-x

Publikationsdatum

06-2023

Peer-reviewed

Ja

ÖFOS 2012

103012 Hochenergiephysik

ASJC Scopus Sachgebiete

Allgemeine Materialwissenschaften, Allgemeine Physik und Astronomie, Physical and Theoretical Chemistry

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/1bcb5a94-3151-4fb8-abdc-be5362ae86f1