Kaonic deuterium from realistic antikaon-nucleon interaction

Horiuchi, W.; Hyodo, Tetsuo; Weise, W.

doi:10.1051/epjconf/201919903003

Cited by 2 publications

(3 citation statements)

References 36 publications

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“…The K − replaces an electron in an excited atomic level, producing an electromagnetic cascade process. In this case, the strong interaction between the kaon and the atomic nucleus/nucleons induces an energy level shift and broadening with respect to the purely electromagnetic values [1][2][3]. Kaonic atoms represent an interesting tool to study the lowenergy regime of quantum chromodynamics (QCD).…”

Section: Introductionmentioning

confidence: 99%

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

Abbene,

Buttacavoli,

Principato

et al. 2023

Sensors

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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.

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Section: Introductionmentioning

confidence: 99%

“…Kaonic atoms represent an interesting tool to study the lowenergy regime of quantum chromodynamics (QCD). Due to the much heavier mass of K − compared to e − , the lower levels are close enough to the nucleus to be influenced by the strong short-range interaction between K − and the nucleus/nucleons [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

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

Abbene,

Buttacavoli,

Principato

et al. 2023

Sensors

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“…The measurements of the 2p → 1s transitions in Kaonic Hydrogen (KH) and Kaonic Deuterium (KD) allow to extract the energy shift and width of the 1s levels resulting from the strong kaon-nucleon interaction. From their values, one can extract the antikaon-nucleon isospin-dependent scattering lengths ( [2][3][4]).…”

Section: Introductionmentioning

confidence: 99%

Kaonic atoms at the DAΦNE collider: a strangeness adventure

Curceanu,

Abbene,

Amsler

et al. 2023

Front. Phys.

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Kaonic atoms are an extremely efficient tool to investigate the strong interaction at the low energy Frontier, since they provide direct access to the K−N interaction at threshold, eliminating the necessity for extrapolation, unlike in the case of scattering experiments. During the 1970s and 1980s, extensive studies were performed on kaonic atoms spanning across a broad spectrum of elements in the periodic table, ranging from lithium to uranium. These measurements provided inputs and constraints for the theoretical description of the antikaon-nuclei interaction potential. Nevertheless, the existing data suffer from significant experimental uncertainties, and numerous measurements have been found to be inconsistent with more recent measurements that utilize advanced detector technology. Furthermore, there remain numerous transitions of kaonic atoms that have yet to be measured. For these reasons, a new era of kaonic atoms studies is mandatory. The DAΦNE electron-positron collider at the INFN Laboratory of Frascati (INFN-LNF) stands out as a unique source of low-energy kaons, having been utilized by Collaborations such as DEAR, SIDDHARTA, and AMADEUS for groundbreaking measurements of kaonic atoms and kaon-nuclei interactions. Presently, the SIDDHARTA-2 experiment is installed at DAΦNE, aiming to perform the first-ever measurement of the 2p → 1s x-ray transition in kaonic deuterium, a crucial step towards determining the isospin-dependent antikaon-nucleon scattering lengths. Based on the experience gained with the SIDDHARTA experiment, which performed the most precise measurement of the kaonic hydrogen 2p → 1s x-ray transition, the SIDDHARTA-2 setup is now fully equipped for the challenging kaonic deuterium measurement. In this paper, we present a comprehensive description of the SIDDHARTA-2 setup and of the first kaonic atoms measurements performed during the commissioning phase of the DAΦNE collider. We also outline a proposal for future measurements of kaonic atoms at DAΦNE beyond SIDDHARTA-2, which is intended to stimulate discussions within the broad scientific community performing research, directly or indirectly, related to this field.

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Kaonic deuterium from realistic antikaon-nucleon interaction

Cited by 2 publications

References 36 publications

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

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

Kaonic atoms at the DAΦNE collider: a strangeness adventure

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