Explanipedia

Measurement of KN scattering below the KN mass threshold Open

H. Noumi, Kentaro Inoue, Shingo Kawasaki, S. Aikawa, Shuhei Ajimura , et al. · 2024

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…

LIDAL, a Time-of-Flight Radiation Detector for the International Space Station: Description and Ground Calibration Open

Giulia Romoli, Luca Di Fino, Giorgia Santi Amantini, Virginia Boretti, Luca Lunati , et al. · 2023

LIDAL (Light Ion Detector for ALTEA, Anomalous Long-Term Effects on Astronauts) is a radiation detector designed to measure the flux, the energy spectra and, for the first time, the time-of-flight of ions in a space habitat. It features a …

Pole position of Λ(1405) measured in d(K−,n)πΣ reactions Open

S. Aikawa, S. Ajimura, T. Akaishi, H. Asano, G. Beer , et al. · 2022

We measured a set of π±Σ∓, π0Σ0, and π−Σ0 invariant mass spectra below and above the K¯N mass threshold in K−-induced reactions on deuteron. The measured πΣ mass spectral shape is well reproduced via the two-step mechanism, i.e., a neutron…

$\bar{K}$-Nuclear Bound State at J-PARC Open

F. Sakuma, Shuhei Ajimura, H. Asano, George Beer, C. Berucci , et al. · 2020

Kaonic Deuterium Precision Measurement at DA$$\varPhi $$NE: The SIDDHARTA-2 Experiment Open

Marco Miliucci, Aidin Amirkhani, A. Baniahmad, M. Bazzi, Giovanni Bellotti , et al. · 2020

VIP2 at Gran Sasso - Test of the validity of the spin statistics theorem for electrons with X-ray spectroscopy Open

J. Márton, Andreas Pichler, S. Bartalucci, M. Bazzi, S. Bertolucci , et al. · 2020

In the VIP2 VIolation of the Pauli Exlusion Principle (PEP) experiment at the Gran Sasso underground laboratory (LNGS) we are searching for possible violations of standard quantum mechanics predictions. With high precision we investigate t…

K− pp bound system at J-PARC Open

F. Sakuma, Shuhei Ajimura, H. Asano, George Beer, C. Berucci , et al. · 2020

The K̄NN bound system, symbolically denoted as "K-pp", is the simplest K̄-nuclear bound system which has been widely discussed as a consequence of the strongly attractive K̄N interaction in I = 0 channels. Many theoretical works have pointed …

Kaonic Atom Experiments at J-PARC Open

T. Hashimoto, S. Aikawa, S. Ajimura, T. Akaishi, H. Asano , et al. · 2019

Probing Strong Interaction with SIDDHARTA-2 Open

J. Zmeskal, A. Scordo, Aidin Amirkhani, C. Amsler, A. Baniahmad , et al. · 2019

The antikaon-nucleon interaction close to threshold provides crucial information on the interplay between spontaneous and explicit chiral symmetry breaking in low-energy QCD involving strangeness. The unique feature of DAΦNE, namely the pr…

Results of $\bar{K}NN$ Search via the (K−, n) Reaction at J-PARC Open

T. Yamaga, Shuhei Ajimura, H. Asano, George Beer, C. Berucci , et al. · 2019

Kaonic atoms measurements at the DAΦNE Collider Open

Diana Laura Sirghi, Aidin Amirkhani, A. Baniahmad, M. Bazzi, Giovanni Bellotti , et al. · 2019

The DAFNE electron-positron collider of the Laboratori Nazionali di Frascati of INFN is a worldwide unique low-energy kaon source, which is being used to produce and to study kaonic atoms by the SIDDHARTA collaboration. The X-ray measureme…

High Precision X-Ray Measurements Open

A. Scordo, M. A. Andreeva, R. A. Baulin, A. I. Chumakov, Salvatore Macis , et al. · 2019

Since their discovery in 1895, the detection of X-rays has had a strong impact on and various applications in several fields of science and human life. Impressive efforts have been made to develop new types of detectors and new techniques,…

Monte Carlo simulation of the LIDAL-ALTEA detector system Open

C. Berucci, C. De Donato, Luca Di Fino, C. La Tessa, G. Masciantonio , et al. · 2019

The LIDAL (Light Ion Detector for ALTEA) is a device designed to work paired with three silicon detector units of ALTEA (Anomalous Long Term Effects on Astronauts) in order to improve the particle identification capabilities of ALTEA on th…

LIDAL (Light Ion Detector for ALTEA): a compact Time-Of-Flight detector for radiation risk assessment in space Open

A. Rizzo, C. Berucci, C. De Donato, Luca Di Fino, Francesca Romana Lamastra , et al. · 2019

Manned space missions towards Moon and Mars planned in the next decades require a reliable radiation risk assessment considering the long time exposure of astronauts (up to years) to different radiation fields. The radiation environment in…

X-ray Detectors for Kaonic Atoms Research at DAΦNE Open

C. Curceanu, Aidin Amirkhani, A. Baniahmad, M. Bazzi, Giovanni Bellotti , et al. · 2019

This article presents the kaonic atom studies performed at the INFN National Laboratory of Frascati (Laboratori Nazionali di Frascati dell’INFN, LNF-INFN) since the opening of this field of research at the DA Φ NE collider in early 2000. S…

“K−pp”, a -meson nuclear bound state, observed in 3He(K−,Λp)n reactions Open

S. Ajimura, H. Asano, G. Beer, C. Berucci, H. Bhang , et al. · 2019

We observed a distinct peak in the Ap invariant mass spectrum of 3 He(K −, Ap)n, well below mK 2mp , i.e., the mass threshold of the K − to be bound to two protons. By selecting a relatively large momentum- transfer region q = 350 ∼ 650 Me…

Spectroscopic study of the Λ(1405) resonance via the d(K−, n) reaction at J-PARC Open

H. Asano, S. Aikawa, S. Ajimura, T. Akaishi, G. Beer , et al. · 2019

The structure of the Λ(1405) hyperon is an important and long-standing issue related to the K̄-nucleus interaction. The J-PARC E31 experiment has been performed to investigate the Λ(1405) spectrum shape. Because it is hard to form the Λ(140…

Kaonic Atoms Measurement at DA $$\Phi $$ Φ NE: SIDDHARTA and SIDDHARTA-2 Open

L. De Paolis, D. Sirghi, Aidin Amirkhani, A. Baniahmad, M. Bazzi , et al. · 2019

Spectroscopy of kaonic atoms at DAFNE and J-PARC Open

J. Márton, A. Amirkhan, A. Baniahmad, M. Bazzi, Giovanni Bellotti , et al. · 2019

The interaction of antikaons (K − ) with nucleons and nuclei in the low-energy regime represents a very active research field in hadron physics. A unique and rather direct experimental access to the antikaon-nucleon scattering lengths is p…

A charged particle veto detector for kaonic deuterium measurements at DAΦNE Open

M. Tüchler, J. Zmeskal, Aidin Amirkhani, M. Bazzi, Giovanni Bellotti , et al. · 2018

The antikaon-nucleon interaction close to threshold provides crucial information on the interplay between spontaneous and explicit chiral symmetry breaking in low-energy QCD. In this context, the importance of kaonic deuterium x-ray spectr…

The kaonic atoms research program at DAΦNE: overview and perspectives Open

C. Curceanu, Aidin Amirkhani, A. Baniahmad, M. Bazzi, Giovanni Bellotti , et al. · 2018

The interaction of antikaons with nucleons and nuclei in the low-energy regime represents an active research field in hadron physics with still many important open questions. The investigation of light kaonic atoms is, in this context, a u…

A New Silicon Drift Detector System for Kaonic Atom Measurements Open

C. Trippl, J. Zmeskal, S. Aikawa, Aidin Amirkhani, M. Bazzi , et al. · 2018

The kaonic deuterium measurement at J-PARC and DAΦNE will provide a piece of information still missing to the antikaon-nucleon interaction close to threshold, providing valuable information to answer one of the most fundamental problems in…

The kaonic atoms research program at DAΦNE: from SIDDHARTA to SIDDHARTA-2 Open

A. Scordo, Aidin Amirkhani, M. Bazzi, Giovanni Bellotti, C. Berucci , et al. · 2018

\nThe interaction of antikaons with nucleons and nuclei in the low-energy regime represents an active research field in hadron physics with still many important open questions. The investigation of light kaonic atoms, in which one electron…

"$\mathbf{{\textit K^-}{\textit p}{\textit p}}$", a ${\overline{K}}$-Meson Nuclear Bound State, Observed in $^{3}{\rm He}({K^-}, Λ p)n$ Reactions Open

J-PARC E Collaboration, S. Ajimura, H. Asano, G. Beer, C. Berucci , et al. · 2018

We observed a distinct peak in the $Λp$ invariant mass spectrum of $^{3}{\rm He}(K^-, \, Λp)n$, well below the mass threshold of $m_K + 2 m_p$. By selecting a relatively large momentum-transfer region $q = 350 \sim 650$ MeV/$c$, one can cl…

"$K^-pp$", a ${\overline K}$-Meson Nuclear Bound State, Observed in $^{3}$He$(K^-, \Lambda p) n$ Reactions Open

S. Ajimura, P. Kienle, F. Sakuma, Takeshi Yamazaki, K. Itahashi , et al. · 2018

Underground Test of Quantum Mechanics: The VIP2 Experiment Open

J. Márton, S. Bartalucci, Angelo Bassi, M. Bazzi, S. Bertolucci , et al. · 2018

Low-Energy Antikaon Interaction with Nuclei: The AMADEUS Challenge Open

J. Márton, M. Bazzi, Giovanni Bellotti, C. Berucci, D. Bosnar , et al. · 2017

The low-energy strong interaction of antikaons (K -) with nuclei has many facets and represents a lively and challenging research field.It is interconnected to the peculiar role of strangeness, since the strange quark is rather light, but …

VIP2 at Gran Sasso - Test of the validity of the spin statistics theorem for electrons with X-ray spectroscopy Open

J. Márton, Andreas Pichler, S. Bartalucci, M. Bazzi, S. Bertolucci , et al. · 2017

In the VIP2 (VIolation of the Pauli Exlusion Principle) experiment at the Gran Sasso underground laboratory (LNGS) we are searching for possible violations of standard quantum mechanics predictions. With high precision we investigate the P…

Underground tests of quantum mechanics. Whispers in the cosmic silence? Open

C. Curceanu, S. Bartalucci, Angelo Bassi, M. Bazzi, S. Bertolucci , et al. · 2017

By performing X-rays measurements in the "cosmic silence" of the underground laboratory of Gran Sasso, LNGS-INFN, we test a basic principle of quantum mechanics: the Pauli Exclusion Principle (PEP), for electrons. We present the achieved r…

Strangeness in the Universe? Low-Energy Kaon-Nuclei Interaction Studies with AMADEUS at the DAΦNE Collider Open

C. Curceanu, M. Bazzi, Giovanni Bellotti, C. Berucci, D. Bosnar , et al. · 2017

C. Berucci YOU? Author Swipe