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Open AccessArticle

Characterization of the SIDDHARTA-2 Setup via the Kaonic Helium Measurement

by Francesco Sgaramella, Francesco Clozza, Leonardo Abbene, Francesco Artibani, Massimiliano Bazzi, Giacomo Borghi, Mario Bragadireanu, Antonino Buttacavoli, Michael Cargnelli, Marco Carminati, Alberto Clozza, Griseld Deda, Raffaele Del Grande, Luca De Paolis, Kamil Dulski, Carlo Fiorini, Carlo Guaraldo, Mihail Iliescu, Masahiko Iwasaki, Aleksander Khreptak, Simone Manti, Johann Marton, Marco Miliucci, Paweł Moskal, Fabrizio Napolitano, Szymon Niedźwiecki, Hiroaki Ohnishi, Kristian Piscicchia, Fabio Principato, Alessandro Scordo, Michal Silarski, Diana Sirghi, Florin Sirghi, Magdalena Skurzok, Antonio Spallone, Kairo Toho, Marlene Tüchler, Johann Zmeskal and Catalina Curceanu Show full author list Hide full author list

Condens. Matter 2024, 9(1), 16; https://doi.org/10.3390/condmat9010016 - 28 Feb 2024

Cited by 5 | Viewed by 4079

Abstract

The aim of the SIDDHARTA-2 experiment is to perform the first measurement ever of the width and shift induced by the strong interaction to the

2 p \to 1 s

energy transition of kaonic deuterium. This ambitious goal implies a challenging task due [...] Read more.

The aim of the SIDDHARTA-2 experiment is to perform the first measurement ever of the width and shift induced by the strong interaction to the

2 p \to 1 s

energy transition of kaonic deuterium. This ambitious goal implies a challenging task due to the very low X-ray yield of kaonic deuterium, which is why an accurate and thorough characterization of the experimental apparatus is mandatory before starting the data-taking campaign. Helium-4 is an excellent candidate for this characterization since it exhibits a high yield in particular for the

3 d \to 2 p

transition, roughly 100 times greater than that of the kaonic deuterium. The ultimate goal of the work reported in this paper is to study the performances of the full experimental setup in view of the kaonic deuterium measurement. This is carried out by measuring the values of the shift and the width for the

3 d \to 2 p

energy transition of kaonic helium-4, induced by the strong interaction. The values obtained for these quantities, for a total integrated luminosity of ∼31/

p

b

, are

ε_{2 p} = 2.0 \pm 1.2 (stat) \pm 1.5 (syst) eV

and

Γ_{2 p} = 1.9 \pm 5.7 (stat) \pm 0.7 (syst) eV

. The results, compared to the value of the shift measured by the SIDDHARTA experiment

ε_{2 p} = 0 \pm 6 (stat) \pm 2 (syst) eV

, show a net enhancement of the resolution of the apparatus, providing strong evidence of the potential to perform the challenging measurement of the kaonic deuterium. Full article

(This article belongs to the Special Issue High Precision X-ray Measurements 2023)

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8 pages, 252 KB

Open AccessEditor’s ChoiceArticle

On the Importance of Future, Precise, X-ray Measurements in Kaonic Atoms

by Sławomir Wycech and Kristian Piscicchia

Condens. Matter 2024, 9(1), 4; https://doi.org/10.3390/condmat9010004 - 11 Jan 2024

Cited by 2 | Viewed by 2556

Abstract

Progress in the construction of precise X-ray detectors allows measurements of energies and widths of “upper levels” in K⁻ mesic atoms. These can be used to determine sub-threshold Kaon-nucleon amplitudes, which are important in investigations of nuclear states of these mesons. The special case of the 2P state in Kaonic Helium is discussed and used to check the properties of the K⁻ proton quasi-bound state. Similar attempts in other elements indicate a need for new, precise measurements. Full article

(This article belongs to the Special Issue High Precision X-ray Measurements 2023)

18 pages, 6027 KB

Open AccessArticle

Potentialities of CdZnTe Quasi-Hemispherical Detectors for Hard X-ray Spectroscopy of Kaonic Atoms at the DAΦNE Collider

by Leonardo Abbene, Antonino Buttacavoli, Fabio Principato, Gaetano Gerardi, Manuele Bettelli, Andrea Zappettini, Massimiliano Bazzi, Mario Bragadireanu, Michael Cargnelli, Marco Carminati, Alberto Clozza, Griseld Deda, Raffaele Del Grande, Luca De Paolis, Laura Fabbietti, Carlo Fiorini, Carlo Guaraldo, Mihail Iliescu, Misahiko Iwasaki, Aleksander Khreptak, Simone Manti, Johann Marton, Marco Miliucci, Pawel Moskal, Fabrizio Napolitano, Szymon Niedźwiecki, Hiroaky Ohnishi, Kristian Piscicchia, Yuta Sada, Francesco Sgaramella, Hexi Shi, Michalł Silarski, Diana Laura Sirghi, Florin Sirghi, Magdalena Skurzok, Antonio Spallone, Kairo Toho, Marlene Tüchler, Oton Vazquez Doce, Chihiro Yoshida, Johannes Zmeskal, Alessandro Scordo and Catalina Curceanu Show full author list Hide full author list

Sensors 2023, 23(17), 7328; https://doi.org/10.3390/s23177328 - 22 Aug 2023

Cited by 7 | Viewed by 2069

Abstract

Kaonic atom X-ray spectroscopy is a consolidated technique for investigations on the physics of strong kaon–nucleus/nucleon interaction. Several experiments have been conducted regarding the measurement of soft X-ray emission (<20 keV) from light kaonic atoms (hydrogen, deuterium, and helium). Currently, there have been new research activities within the framework of the SIDDHARTA-2 experiment and EXCALIBUR proposal focusing on performing precise and accurate measurements of hard X-rays (>20 keV) from intermediate kaonic atoms (carbon, aluminum, and sulfur). In this context, we investigated cadmium–zinc–telluride (CdZnTe or CZT) detectors, which have recently demonstrated high-resolution capabilities for hard X-ray and gamma-ray detection. A demonstrator prototype based on a new cadmium–zinc–telluride quasi-hemispherical detector and custom digital pulse processing electronics was developed. The detector covered a detection area of 1 cm² with a single readout channel and interesting room-temperature performance with energy resolution of 4.4% (2.6 keV), 3% (3.7 keV), and 1.4% (9.3 keV) FWHM at 59.5, 122.1, and 662 keV, respectively. The results from X-ray measurements at the DAΦNE collider at the INFN National Laboratories of Frascati (Italy) are also presented with particular attention to the effects and rejection of electromagnetic and hadronic background. Full article

(This article belongs to the Special Issue Particle Detector R&D: Design, Characterization and Applications)

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7 pages, 3307 KB

Open AccessArticle

Silicon Drift Detectors’ Spectroscopic Response during the SIDDHARTA-2 Kaonic Helium Run at the DAΦNE Collider

by Marco Miliucci, Massimiliano Bazzi, Damir Bosnar, Mario Bragadireanu, Marco Carminati, Michael Cargnelli, Alberto Clozza, Catalina Curceanu, Griseld Deda, Luca De Paolis, Raffaele Del Grande, Carlo Fiorini, Carlo Guaraldo, Mihail Iliescu, Masahiko Iwasaki, Pietro King, Paolo Levi Sandri, Johann Marton, Paweł Moskal, Fabrizio Napolitano, Szymon Niedźwiecki, Kristian Piscicchia, Alessandro Scordo, Francesco Sgaramella, Hexi Shi, Michał Silarski, Diana Sirghi, Florin Sirghi, Magdalena Skurzok, Antonio Spallone, Marlene Tüchler, Oton Vazquez Doce and Johann Zmeskal Show full author list Hide full author list

Condens. Matter 2021, 6(4), 47; https://doi.org/10.3390/condmat6040047 - 25 Nov 2021

Cited by 13 | Viewed by 3523

Abstract

A large-area silicon drift detectors (SDDs) system has been developed by the SIDDHARTA-2 collaboration for high precision light kaonic atom X-ray spectroscopy at the DA

Φ

NE collider of Istituto Nazionale di Fisica Nucleare—Laboratori Nazionali di Frascati. The SDDs’ geometry and electric field [...] Read more.

A large-area silicon drift detectors (SDDs) system has been developed by the SIDDHARTA-2 collaboration for high precision light kaonic atom X-ray spectroscopy at the DA

Φ

NE collider of Istituto Nazionale di Fisica Nucleare—Laboratori Nazionali di Frascati. The SDDs’ geometry and electric field configuration, combined with their read-out electronics, make these devices suitable for performing high precision light kaonic atom spectroscopy measurements in the background of the DA

Φ

NE collider. This work presents the spectroscopic response of the SDDs system during the first exotic atoms run of SIDDHARTA-2 with kaonic helium, a preliminary to the kaonic deuterium data taking campaign. The SIDDHARTA-2 spectroscopic system has good energy resolution and a 2 μs timing window which rejects the asynchronous events, scaling the background by a factor of

10^{- 5}

. The results obtained for the first exotic atoms run of SIDDHARTA-2 prove this system to be ready to perform the challenging kaonic deuterium measurement. Full article

(This article belongs to the Special Issue High Precision X-ray Measurements 2021)

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