Publications (15)
Measurement of excitation spectra in the C reaction near the emission threshold
Y. K. Tanaka, K. Itahashi, H. Fujioka +51
Excitation spectra of C were measured in the C reaction near the emission threshold. A proton beam extracted from the synchrotron SIS-18 at GSI with an i…
Observation of Tensor-Driven High-Momentum Neutrons in O via () Reactions and Zero-Degree Deuteron Momentum Spectroscopy
X. Wang, H. J. Ong, S. Terashima +42
The reaction has been studied at using 403-, 604-, 907- and 1209-MeV protons, comparing cross sections populating positive- and ne…
Search for η'(958)-nucleus bound states by (p,d) reaction at GSI and FAIR
H. Fujioka, Y. Ayyad, J. Benlliure +51
The mass of the η' meson is theoretically expected to be reduced at finite density, which indicates the existence of η'-nucleus bound states. To investigate these states, we perf…
Hadron Physics Opportunities at FAIR
J. G. Messchendorp, F. Nerling, P. Achenbach +103
This White Paper outlines a coordinated, decade-spanning programme of hadron and QCD studies anchored at the GSI/FAIR accelerator complex. Profiting from intense deuteron, proton a…
Hypernuclear event detection in the nuclear emulsion with Monte Carlo simulation and machine learning
A. Kasagi, W. Dou, V. Drozd +18
This study developed a novel method for detecting hypernuclear events recorded in nuclear emulsion sheets using machine learning techniques. The artificial neural network-based obj…
Missing-mass spectroscopy of the reaction near the -meson production threshold
Y. K. Tanaka, K. Itahashi, H. Fujioka +51
Excitation-energy spectra of C nuclei near the -meson production threshold have been measured by missing-mass spectroscopy using the C(,) reaction. A…
Hypernuclear spectroscopy of products from 6Li projectiles on a carbon target at 2 AGeV
C. Rappold, E. Kim, D. Nakajima +50
A novel experiment, aiming at demonstrating the feasibility of hypernuclear spectroscopy with heavy-ion beams, was conducted. Using the invariant mass method, the spectroscopy of h…
The HypHI project: Hypernuclear spectroscopy with stable heavy ion beams and rare isotope beams at GSI and FAIR
S. Bianchin, P. Achenbach, S. Ajimura +26
The HypHI collaboration aims to perform a precise hypernuclear spectroscopy with stable heavy ion beams and rare isotope beams at GSI and fAIR in order to study hypernuclei at extr…
Performance of newly constructed plastic scintillator barrel in the WASA-FRS experiments and evaluation of radiation damage effects on multi-pixel photon counter
Y. K. Tanaka, R. Sekiya, K. Itahashi +70
A barrel-shaped plastic scintillation counter with Multi-Pixel Photon Counter (MPPC) readout has been developed and operated in the first WASA-FRS experimental campaign at GSI. The…
High-resolution, accurate MR-TOF-MS for short-lived, exotic nuclei of few events in their ground and low-lying isomeric states
S. Ayet, C. Hornung, J. Ebert +37
Mass measurements of fission and projectile fragments, produced via U and Xe primary beams, have been performed with the multiple-reflection time-of-flight mass spe…
Spectroscopy of -nucleus bound states at GSI and FAIR --- very preliminary results and future prospects ---
H. Fujioka, Y. Ayyad, J. Benlliure +51
The possible existence of η'-nucleus bound states has been put forward through theoretical and experimental studies. It is strongly related to the η' mass at finite density, whic…
In-beam tests of scintillating fibre detectors at MAMI and at GSI
P. Achenbach, C. Ayerbe Gayoso, J. C. Bernauer +27
The performance of scintillating fibre detectors was studied with electrons at the spectrometer facility of the Mainz microtron MAMI, as well as in a C-12 beam of 2 AGeV energy and…
Excitation Spectra of the Reaction near the -Meson Emission Threshold Measured in Coincidence with High-Momentum Protons
R. Sekiya, K. Itahashi, Y. K. Tanaka +74
The missing mass of the reaction has been measured near the -meson emission threshold in coincidence with a high-momentum proton to selectively collect $…
Examination of experimental conditions for the production of proton-rich and neutron-rich hypernuclei
C. Rappold, J. F. López Fidalgo
After the demonstration of the feasibility of hypernuclear spectroscopy with heavy-ion beams, the HypHI Collaboration will next focus on the study of proton- and neutron-rich hyper…
Observation of Lambda H-4 hyperhydrogen by decay-pion spectroscopy in electron scattering
A. Esser, S. Nagao, F. Schulz +38
At the Mainz Microtron MAMI, the first high-resolution pion spectroscopy from decays of strange systems was performed by electron scattering off a Be-9 target in order to study the…