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View article: Measurement of $^{3,4}$He($K^-, π^0$)$^{3,4}_Λ$H reaction cross section and evaluation of hypertriton binding energy
Measurement of $^{3,4}$He($K^-, π^0$)$^{3,4}_Λ$H reaction cross section and evaluation of hypertriton binding energy Open
Light $s$-shell hypernuclei ($^{3,4}_Λ\text{H}$) and their ground-state properties are crucial benchmarks in hypernuclear physics. In particular, comparing the production cross sections of $^{3}_Λ\text{H}$ and $^{4}_Λ\text{H}$ provides ins…
View article: High precision X-ray spectroscopy of kaonic neon
High precision X-ray spectroscopy of kaonic neon Open
The high-precision kaonic neon X-ray transitions measurement performed by the SIDDHARTA-2 collaboration at the DAΦNE collider is reported. Both the X-ray energies and yields for high-n transitions were measured, demonstrating the feasibili…
View article: Prospects for Pentaquark Baryon Search with the Upgraded LEPS2 Facility
Prospects for Pentaquark Baryon Search with the Upgraded LEPS2 Facility Open
We present prospects for the \({\mit \Theta }^+\) pentaquark baryon search using the newly constructed LEPS2 facility at SPring-8. The LEPS2 detector system features significant improvements in acceptance for multi-particle final states co…
View article: Tests of New CZT detectors at DAΦNE collider for Kaonic Atoms Measurements
Tests of New CZT detectors at DAΦNE collider for Kaonic Atoms Measurements Open
Kaonic atom spectroscopy provides key observables for investigating low-energy strong interactions in strange systems. In this paper, we present an overview of the SIDDHARTA-2 collaboration’s activities in the field of kaonic atoms, with a…
View article: Prospects for Pentaquark Baryon Search with the Upgraded LEPS2 Facility
Prospects for Pentaquark Baryon Search with the Upgraded LEPS2 Facility Open
We present prospects for the $\Theta^+$ pentaquark baryon search using the newly constructed LEPS2 facility at SPring-8. The LEPS2 detector system features significant improvements in acceptance for multi-particle final states compared to …
View article: Kaonic atoms studies with the SIDDHARTA-2 experiment
Kaonic atoms studies with the SIDDHARTA-2 experiment Open
The SIDDHARTA-2 collaboration is performing research in the field of kaonic atoms spectroscopy. In this work, following an introduction on kaonic atoms and their importance for the development of low-energy strong interaction theories, the…
View article: First Stability Characterization for a CZT Detection System in an e+e− Collider Environment
First Stability Characterization for a CZT Detection System in an e+e− Collider Environment Open
The SIDDHARTA-2 collaboration has developed a novel X-ray detection system based on cadmium-zinc-telluride (CZT, CdZnTe), marking the first application of this technology at the DAΦNE electron-positron collider at INFN-LNF. This work aims …
View article: Impact of structural factors around the accessory nerve on the pathogenesis of essential neck and upper‐back stiffness: a sonographic investigation
Impact of structural factors around the accessory nerve on the pathogenesis of essential neck and upper‐back stiffness: a sonographic investigation Open
Introduction Neck and upper‐back stiffness involves discomfort/ache in the trapezius muscle (TM). The pathogenesis of ‘essential neck and upper‐back stiffness’ without obvious causes remains uncertain. In symptomatic subjects, TM hardness …
View article: SIDDHARTA-2 apparatus for kaonic atoms research on the DAΦNE collider
SIDDHARTA-2 apparatus for kaonic atoms research on the DAΦNE collider Open
SIDDHARTA-2 is a state-of-the-art experiment designed to perform measurements of kaonic atoms, which are exotic atoms composed of a negatively charged kaon orbiting nucleus. These atoms constitute an exceptional probe for investigating the…
View article: Intermediate Mass Kaonic Atoms at DA$Φ$NE
Intermediate Mass Kaonic Atoms at DA$Φ$NE Open
The SIDDHARTA-2 collaboration aims to measure for the first time the shift and width induced on the $1s$ level of kaonic deuterium by the strong interaction. In the preliminary phase to the experiment, a test run using a Helium-4 target wa…
View article: First Linearity and Stability Characterization for CZT Detection System in a e$^+$e$^-$ Collider Environment
First Linearity and Stability Characterization for CZT Detection System in a e$^+$e$^-$ Collider Environment Open
The SIDDHARTA-2 collaboration built a new cadmium-zinc-telluride (CZT, CdZnTe)-based X-ray detection system, used for the first time in the DA$Φ$NE electron-positron collider at INFN-LNF. The aim of this work is to show that these detector…
View article: Measurement of the mesonic decay branch of the $\bar{K}\!N\!N$ quasi-bound state
Measurement of the mesonic decay branch of the $\bar{K}\!N\!N$ quasi-bound state Open
We conducted measurements of $K^- + {^3{\rm He}} \to π\!Y \!N + N'$ reactions using a $1~{\rm GeV}/c$ $K^-$-beam, with the objective of understanding the broad decay width of $\bar{K} \!N \!N$ (approximately twice as broad as that of $Λ(14…
View article: First measurement of kaonic helium-4 M-series transitions
First measurement of kaonic helium-4 M-series transitions Open
In this paper we present the results of a new kaonic helium-4 measurement with a 1.37 g l −1 gaseous target by the SIDDHARTA-2 experiment at the DAΦNE collider. We measured, for the first time, the energies and yields of three transitions …
View article: Characterization of the SIDDHARTA-2 Setup via the Kaonic Helium Measurement
Characterization of the SIDDHARTA-2 Setup via the Kaonic Helium Measurement Open
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 2p→1s energy transition of kaonic deuterium. This ambitious goal implies a challenging task due …
View article: Kaonic atoms with SIDDHARTA-2 at the DAΦNE collider
Kaonic atoms with SIDDHARTA-2 at the DAΦNE collider Open
The most important information still missing in the field of the low-energy antikaon-nucleon inter actions studies is the experimental determination of the hadronic energy shift and width of kaonic deuterium. This measurement will be perfo…
View article: The Odyssey of Kaonic Atoms Studies at the DA\(\Phi \)NE Collider: From DEAR to SIDDHARTA-2
The Odyssey of Kaonic Atoms Studies at the DA\(\Phi \)NE Collider: From DEAR to SIDDHARTA-2 Open
In this paper, an overview of kaonic atoms studies from the late 90s to nowadays at the DAΦNE collider at INFN-LNF is presented. Experiments on kaonic atoms are an important tool to test and optimize phenomenological models on the low-ener…
View article: Measurement of <i>KN</i> scattering below the <i>KN</i> mass threshold
Measurement of <i>KN</i> scattering below the <i>KN</i> mass threshold Open
We measured πE invariant mass spectra below and above the K¯N mass threshold in the K − d → NπE reaction in order to study the K¯N interaction and the Λ(1405) resonance. This reaction can be described by the two-step process: (i) K¯N 1 → K…
View article: PANTHEON: Towards High-precision Tests of the Pauli Exclusion Principle in Nuclear Reaction as a Testbed of Theories Beyond the Standard Model
PANTHEON: Towards High-precision Tests of the Pauli Exclusion Principle in Nuclear Reaction as a Testbed of Theories Beyond the Standard Model Open
The PANTHEON project aims to test the Pauli Exclusion Principle (PEP) in nuclear reactions by searching for nuclear transitions prohibited by PEP in processes respecting the Messiah–Greenberg super-selection rule. The project aims at using…
View article: Kaonic Helium-4 \(L\)-series Yield Measurement at 2.25 g/l Density by SIDDHARTA-2 at DA\(\Phi \)NE
Kaonic Helium-4 \(L\)-series Yield Measurement at 2.25 g/l Density by SIDDHARTA-2 at DA\(\Phi \)NE Open
This article presents the results of the kaonic helium-4 measurement conducted by the SIDDHARTA-2 experiment, aiming to provide crucial insights into the low-energy strong interaction in the strangeness sector. High-precision X-ray spectro…
View article: SIDDHARTA-2 apparatus for kaonic atoms research on the DA$Φ$NE collider
SIDDHARTA-2 apparatus for kaonic atoms research on the DA$Φ$NE collider Open
SIDDHARTA-2 represents a state-of-the-art experiment designed to perform dedicated measurements of kaonic atoms, which are particular exotic atom configurations composed of a negatively charged kaon and a nucleus. Investigating these atoms…
View article: The SIDDHARTA-2 Veto-2 system for X-ray spectroscopy of kaonic atoms at DAΦNE
The SIDDHARTA-2 Veto-2 system for X-ray spectroscopy of kaonic atoms at DAΦNE Open
The Veto-2 is a fundamental component of a multiple-stage veto system for the SIDDHARTA-2 experiment installed at the DAΦNE collider at INFN-LNF in Italy. It was developed to improve the signal-to-background ratio for the challenging measu…
View article: First measurement of kaonic helium-4 M-series transitions
First measurement of kaonic helium-4 M-series transitions Open
In this paper we present the results of a new kaonic helium-4 measurement with a 1.37 g/l gaseous target by the SIDDHARTA-2 experiment at the DAΦNE collider. We measured, for the first time, the energies and yields of three transitions bel…
View article: CdZnTe detectors tested at the DAΦNE collider for future kaonic atoms measurements
CdZnTe detectors tested at the DAΦNE collider for future kaonic atoms measurements Open
The SIDDHARTA-2 collaboration at the INFN Laboratories of Frascati (LNF) aims to perform groundbreaking measurements on kaonic atoms. In parallel and beyond the ongoing kaonic deuterium, presently running on the DA$Φ$NE collider at LNF, we…
View article: Plasma free amino acid profiles are associated with serum high molecular weight adiponectin levels in Japanese medical check-up population without type 2 diabetes mellitus
Plasma free amino acid profiles are associated with serum high molecular weight adiponectin levels in Japanese medical check-up population without type 2 diabetes mellitus Open
To prevent the progression of type 2 diabetes mellitus (T2DM), early detection and intervention are important. Several studies have already shown that the serum adiponectin level could be useful for evaluating the future risk of T2DM. Rece…
View article: Precise lifetime measurement of $^4_Λ$H hypernucleus using in-flight $^4$He$(K^-, π^0)^4_Λ$H reaction
Precise lifetime measurement of $^4_Λ$H hypernucleus using in-flight $^4$He$(K^-, π^0)^4_Λ$H reaction Open
We present a new measurement of the $^4_Λ$H hypernuclear lifetime using in-flight $K^-$ + $^4$He $\rightarrow$ $^4_Λ$H + $π^0$ reaction at the J-PARC hadron facility. We demonstrate, for the first time, the effective selection of the hyper…
View article: Kaonic atoms measurements with SIDDHARTA-2
Kaonic atoms measurements with SIDDHARTA-2 Open
The SIDDHARTA-2 collaboration is aiming to perform the challenging measurement of kaonic deuterium X-ray transitions to the ground state. This will allow to extract the isospin-dependent antikaon-nucleon scattering lengths, providing input…
View article: Investigating the E2 nuclear resonance effect in kaonic atoms
Investigating the E2 nuclear resonance effect in kaonic atoms Open
The nuclear E2 resonance effect occurs when an atomic de-excitation energy is closely matched by a nuclear excitation energy. It produces an attenuation of some of the atomic X-ray lines in the resonant isotope target. Investigating the nu…
View article: SIDDHARTA-2 veto system design and performance for kaonic atoms studies at DAΦNE
SIDDHARTA-2 veto system design and performance for kaonic atoms studies at DAΦNE Open
Light kaonic atoms spectroscopy provides a unique approach to study the low-energy strong interaction in the strangeness sector. Precise measurements of X-ray emission from light kaonic atoms provide valuable information on kaon-nucleus in…