C. Yoshida

Evidence for a KNN quasi-bound state in the γd → K⁰Λp reaction

R. Kobayakawa, J.K. Ahn, S. Ajimura, W. C. Chang et autres

jp, kr, tw, cn, vn, ca (code pays fourni par la source)

Direct Measurement of the In-Medium η ′ Mass Spectrum through the γ γ Decay Channel

Y. Matsumura, N Muramatsu, T.A. Hashimoto, M. Miyabe et autres

We measured the invariant mass of the η^{'}(958) meson through the η^{'}→γγ decay channel to search for possible character change of η^{'} in a nuclear medium. The measured invariant-mass spectra were analyzed by fitting realistic spectral functions. An enhancement was observed in …

jp, cn, tw, us, vn, ca (code pays fourni par la source)

Comprehensive measurement of η ′ photoproduction off the proton at E γ < 2.4 GeV

Norihito Muramatsu, J. K. Ahn, W. C. Chang, J. Y. Chen et autres

For the spectroscopy of nucleon resonances at the total energies from the $η^\prime$-meson production threshold to $2.32$ $\mathrm{GeV}$, photon beam asymmetries of the reaction $γp \to η^\prime p$ were measured together with total and differential cross sections by analyzing the two decay …

cn, tw, jp, us, de, vn, ru, ca (code pays fourni par la source)

First measurement of kaonic helium-4 M-series transitions

Francesco Sgaramella, D Sirghi, L. Abbene, F. Artibani et autres

Abstract 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 …

it, hr, cz, at, de, jp, pl (code pays fourni par la source)

Kaonic Helium-4 \(L\)-series Yield Measurement at 2.25 g/l Density by SIDDHARTA-2 at DA\(\Phi \)NE

Francesco Sgaramella, M. Bazzi, A. Clozza, Catalina Curceanu et autres

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 spectroscopy is used to examine the interaction between negatively charged kaons and …

CdZnTe detectors tested at the DAΦNE collider for future kaonic atoms measurements

A. Scordo, L. Abbene, F. Artibani, M. Bazzi et autres

it, hr, ro, at, de, jp (code pays fourni par la source)

SIDDHARTA-2 apparatus for kaonic atoms research on the DA$Φ$NE collider

Florin Catalin Sirghi, F. Sgaramella, L. Abbene, C. Amsler et autres

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 provides an exceptional tool to comprehend the strong interactions in the …

The SIDDHARTA-2 Veto-2 system for X-ray spectroscopy of kaonic atoms at DAΦNE

M. Tüchler, C. Amsler, M. Bazzi, D. Bosnar et autres

Abstract 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 measurement of X-ray transitions to the …

at, it, hr, ro, de, jp, pl (code pays fourni par la source)

First measurement of kaonic helium-4 M-series transitions

Francesco Sgaramella, D. L. Sirghi, L. Abbene, F. Artibani et autres

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 belonging to …

CdZnTe detectors tested at the DAΦNE collider for future kaonic atoms measurements

A. Scordo, L. Abbene, F. Artibani, M. Bazzi et autres

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 plan to install additional detectors to perform …

Kaonic atoms at the DAΦNE collider: a strangeness adventure

Catalina Curceanu, L. Abbene, C. Amsler, M. Bazzi et autres

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 …

it, at, hr, ro, de, pl, jp (code pays fourni par la source)

First measurement of differential cross sections and photon beam asymmetries for photoproduction of the f0(980) meson decaying into π0π0 at Eγ<2.4 GeV

Norihito Muramatsu, S. K. Wang, Q. He, J. K. Ahn et autres

For the first time, differential cross sections and photon beam asymmetries were measured for the reaction $\ensuremath{\gamma}p\ensuremath{\rightarrow}{f}_{0}(980)p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}p$ by using a linearly polarized photon beam up to $2.4\phantom{\rule{4pt}{0ex}}\mathrm{GeV}$ and a liquid hydrogen target. The ${f}_{0}$(980) photoproduction signal was clearly observed owing to the …

jp, cn, kr, tw, us, vn, ca, ru (code pays fourni par la source)