Conveners
Accelerators and Instrumentation: 1
- Constantin Mihai (IFIN-HH)
Accelerators and Instrumentation: 2
- Achim Denig
Accelerators and Instrumentation: 3
- Adam Maj (IFJ PAN)
Accelerators and Instrumentation: 4
- Marek Lewitowicz (GANIL)
Accelerators and Instrumentation: 5
- Dieter Ackermann (GANIL)
Accelerators and Instrumentation: 6
- Norbert Pietralla (TU Darmstadt, IKP)
The electron-ion collider is a future, US-based, facility dedicated to the investigation of the hadron structure and hadron formation. One of its key deliverables involves the study of the three-dimensional nucleon and nucleus structure in momentum and position space, accessible through the measurement of exclusive processes. A presentation of how exclusive processes will be studied at the EIC...
We present the status of European lepton accelerators, which are operated successfully for the fields of nuclear, hadron and low-energy particle physics. A special emphasis is given to the GeV-scale fixed-target accelerators ELSA in Bonn and MAMI in Mainz. Furthermore, the physics programme of the upcoming new MESA accelerator is discussed. At MESA, the innovative concept of energy-recovery...
In-beam ฮณ-ray spectroscopy and invariant/missing mass studies from quasi-free scattering or knockout reactions on secondary fragmentation beams are often the preferable techniques to give access to the most exotic nuclei and perform their first spectroscopy. Illustratively, such studies have recently enabled to quantify the magic character of 54Ca [1,2], 78Ni[3], but as importantly to...
The WASA-FRS HypHI Experiment focuses on the study of light hypernuclei by means of heavy-ion induced reactions in 6Li collisions with 12C at 1.96GeV/u. It is part of the WASA-FRS experimental campaign, and so is the eta-prime experiment [1]. The distinctive combination of the high-resolution spectrometer FRagment Separator (FRS) [2] and the high-acceptance detector system WASA [3] is used....
The dual-radiator RICH (dRICH) detector of the ePIC experiment at the future Electron-Ion Collider (EIC) will employ Silicon Photomultipliers (SiPMs) for Cherenkov light detection. The photodetector system will cover an area of approximately 3 mยฒ, using 3x3 mmยฒ pixel sensors and exceeding 300,000 readout channels, marking the first use of SiPMs for single-photon detection in a high-energy...
A. Sharma$^1$, G. D'Amen$^2$, F. Bouyjou$^3$, O. Brand-Foissac$^1$, V. Chaumat$^1$, W. Chen$^2$, S. Conforti$^4$, T. Cornet$^1$, F. Dulucq$^4$, S. Extier$^4$, G. Giacomini$^2$, K. Hara$^5$, A. Ikbal$^6$, T. Imamura$^5$, M. Idzik$^7$, A. Jentsch$^2$, S. Kita$^5$, B.-Y. Ky$^1$, D. Marchand$^1$, J. Moron$^7$, K. Nakamura$^8$, S. Paul$^2$, P. Shanmuganathan$^2$, N. Seguin-Moreau$^4$, L. Serin$^1$,...
The primary objective of the ALICE physics program is to investigate the properties of the quark-gluon plasma (QGP), the deconfined state of strongly interacting matter, and to understand how these properties emerge from the fundamental interactions governed by quantum chromodynamics (QCD). By colliding heavy nuclei, the LHC generates quark-gluon plasma with record-breaking temperature and...
The ALICE experiment at the Large Hadron Collider (LHC) is preparing for an upgrade during Long Shutdown 3 (LS3, 2026-2030), which includes replacing the three innermost layers of the Inner Tracking System (ITS2). The new ITS3 detector will introduce an innovative design featuring wafer-scale monolithic pixel sensors in 65 nm CMOS technology, thinned to 50 $\mu$m and bent into truly...
The Apparatus for Mesons and Baryon Experimental Research (AMBER, NA66) is a high-energy physics experiment at CERNโs M2 beam line, with a broad physics program extending beyond 2032. It includes studies on: antiproton production cross-sections on protons, helium and deuterium; the charge radius of the proton, and Kaon and Pion PDFs via the Drell-Yan process.
As part of medium- and long-term...
The Compressed Baryonic Matter (CBM) experiment at the Facility for Antiproton and Ion Research (FAIR) aims to explore the phase diagram of strongly interacting matter at high baryon densities. It is designed to study heavy-ion collisions at beam energies of up to 11 AGeV using the SIS100 synchrotron. The CBM will explore collisions of high-intensity nuclear beams with thick fixed targets...
In recent years, significant advancements in CMOS silicon pixel detectors have led to their widespread adoption across various fields of physics, driving substantial progress in particle detection technologies. A notable example is the ALTAI chip, a CMOS Monolithic Active Pixel Sensor developed as part of the ALICE (A Large Ion Collider Experiment) ITS sensor studies.
The ALTAI chip offers...
A long time operation of Multi-Gap Resistive Plate Chambers with gas mixtures based on C$_2$H$_2$F$_4$ and SF$_6$ leads to aging effects reflected in an increase of the dark current and dark counting rate, with impact on the chamber performance. Moreover, the higher noise rate leads to an artificial increase of the data volume in a free-streaming data acquisition operation used in high...
PARIS is an advanced gamma calorimeter designed for high-resolution nuclear spectroscopy, particularly in the study of exotic nuclear properties. The detector system is based on a phoswitch architecture combining high-efficiency scintillators such as LaBr_3(Ce)/CeBr_3 and NaI(Tl), offering good energy and excelent time resolution. The primary goal of PARIS is to enhance the detection...
The problem to discriminate between gamma-rays and neutrons is a long standing one and it was faced in the past using Time of Flight or PSD techniques as the charge difference technique.
The CLYC (Cs2LiYCl6:Ce) scintillator can easily discriminate between gamma-rays and neutrons induced events but, unfortunately, it has a too low density (only 3.3 g/cm3) and the decay time constant of the...
More than 80 years after its discovery, a complete description of the fission process remains a challenge. It is a many-body dynamic problem involving both microscopic and macroscopic aspects of nuclear matter. To further understand the fission process, new experimental data on exotic fissioning systems that cannot be probed using direct neutron-induced fission are needed. Moreover,...
Due to high Q-values and low neutron separation energies, ฮฒ-decay of neutron-rich nuclei can often populate neutron unbound states in the daughter nuclei, and close to the dripline, ฮฒ-delayed multi-neutron emission becomes possible. Decay schemes are commonly studied via neutron time-of-flight (TOF) spectroscopy using modular arrays based on organic scintillators.
In principle, the use of...
n_TOF, at CERN, is the neutron time-of-flight facility dedicated to the study of neutron-induced reactions for fundamental and applied nuclear research. With high-precision neutron cross-section data, n_TOF plays a crucial role in addressing key questions in nuclear astrophysics and for innovation in advanced nuclear technologies. In nuclear astrophysics, experiments performed at n_TOF provide...
The Bellotti Ion Beam Facility (IBF) [1] is located in the deep underground site of Laboratori del Gran Sasso (LNGS), Italy. The facility is named in honor of Enrico Bellotti, the first director of the Laboratori Nazionali del Gran Sasso (LNGS), Italy, who initiated the first installation of an underground accelerator for the study of nuclear reactions of astrophysical interest, following a...
ALTO (Accรฉlรฉrateur Linรฉaire et Tandem ร Orsay) is the two-accelerator research platform of IJCLab (alto.ijclab.in2p3.fr). The first is a 15 MV Tandem accelerator which produces a wide range of heavy ion beams, from proton up to gold. ALTO is also unique in its capacity to provide high-flux naturally directional neutron beams with the LICORNE neutron converter in inverse kinematics. The second...
J. Stricker(1, 2), K. Gaul(1,2), L. M. Arndt(1), Ch. E. Duellmann(1, 2, 3), D. Renisch(1,2), J. Velten(1) and the TACTICa Collaboration(1, 2, 3). (1) Johannes Gutenberg-University Mainz, 55099 Mainz, Germany. (2) Helmholtz Institute Mainz, 55099 Mainz, Germany. (3) GSI Helmholtzzentrum fรผr Schwerionenforschung GmbH, 64291 Darmstadt, Germany.
Trapped atomic and molecular actinide ions are...
The ISOLDE Decay Station (IDS) [1] is a permanent experiment at CERNโs ISOLDE facility. The device provides a versatile and flexible tool for studying the wide range of radioactive beams available at the laboratory, and consists of a recently upgraded array of clover detectors surrounding a movable tape system. This core setup is complemented by arrays of ancillary detector for charged...
The stability of nuclei beyond the spherical double shell closure of $^{208}$Pb rapidly decreases because of the disappearance of the macroscopic fission barrier. This phenomenon is however compensated by quantum shell effects caused by alternating zones of high and low densities caused by deformation. The island of superheavy stability is foreseen as a doubly spherical gap whose position...
N.S. Martorana1, G. DโAgata1,2, A. Barbon1,2, G. Cardella1, E. Geraci1,2,3, L. Acosta4,5,6, C. Altana6, A. Castoldi7, E. De Filippo 1, S. De Luca6, P. Figuera6, N. Giudice1,2, B. Gnoffo1,2, C. Guazzoni7, C. Maiolino6, E.V. Pagano6, S. Pirrone 1, G. Politi 1,2, L. Quattrocchi1,8, F. Risitano1,8, F. Rizzo2,3,6, P. Russotto6, G. Sapienza6, M. Trimarchi1,7, S. Tudisco6, C. Zagami...
The study of superheavy nuclei has progressed in the last decade with new techniques. In addition to the findings of decay spectroscopy studies [1], the measurement of masses [2] and charge radii [3] have become possible in the fermium-nobelium region, providing new information necessary for the comprehension of the heaviest nuclei. In parallel, a strong international competition is ongoing to...
On behalf of the ePIC collaboration.
The Electron-Ion Collider (EIC) is a next-generation facility to explore quantum chromodynamics (QCD) by colliding polarized electrons with polarized protons and heavy ions. The ePIC detector at the EIC will study the 3D structure of nucleons, the spin-momentum correlations of quarks and gluons, and the emergent properties of dense gluon fields. Leveraging...
The international collaboration constituted based on the Total Absorption Gamma-ray Spectroscopy technique (TAGS) in Europe is aiming to build a Total Absorption Spectrometer (TAS) of the next generation. TAGS is a calorimetric technique using large monolithic or segmented scintillators that cover more than 80% of 4๏ฐ, but with limited energy resolution. It complements high-resolution...
Conventional accelerators, which use radio-frequency fields, can only reach maximum acceleration field strengths on the order of 1 MV/cm [1], resulting in large footprints and high associated costs, especially for low-energy (MeV range) applications. In contrast, laser-driven accelerators have consistently reached acceleration field gradients on the order of GV/cm to TV/cm, rendering them a...
As a Swedish in-kind contribution to FAIR, the storage ring CRYRING@ESR was delivered to GSI in 2014, assembled in the following years and commissioned in 2018. With a relatively compact circumference of 54 m and the maximal magnetic rigidity of 1.44 Tm, CRYRING is suitable for precision experiments with highly charged ion beams at low energies. It consists out of 12 sections, including...
The construction of the DESIR facility at GANIL-SPIRAL2 is almost completed and soon the installation of the experimental setups will start. The experimental hall will feature state-of-the-art setups for decay and laser spectroscopy, as well as trap-based experiments. With the beams produced at SPIRAL1 and S3, DESIR will provide unique opportunities for high-precision low-energy nuclear...
The new PID equipment of the Super-FRS [1], presently under construction at FAIR, was qualified using SIS18 beams (C, Ag, U) delivered at different energies 400-1000 MeV/nucleon.
The absence at GSI of a beam line suitable to be equipped with Super-FRS vacuum detectors, due the large acceptance in momentum of the Super-FRS, enforced to install the first equipped Super-FRS diagnostic chamber in...
The advent of new facilities for radioactive ion beams mainly rich in neutrons, like SPES @ LNL, FRAISE @ LNS and FAIR @ GSI only to give some examples, imposes the joint detection and discrimination of neutrons and charged particles in Heavy radioactive Ion collisions, with high angular and energy resolution. The construction of novel detection systems suitable for this experimental task is...
GANIL facility was upgraded with a superconducting linear accelerator, which delivers highly intense stable beams. Light ions are used at the Neutron for Science (NFS) experimental hall [1] and heavier ions are essential to produce exotic nuclei, like heavy neutron-deficient isotopes and super heavy nuclei, in the Super Separator Spectrometer (S3) [2, 3].
By combining the intense heavy ion...
The PANDORA (Plasmas for Astrophysics, Nuclear Decay Observation and Radiation for Archaeometry) facility aims to investigate the variation of nuclear and atomic properties inside a laboratory magnetoplasma emulating some aspects of the stellar interior [1]. The main goals of the facility are to use an electron cyclotron resonance (ECR) ion trap to measure ฮฒ-decay rates and optical opacities...
The SPIRAL2 facility of GANIL will significantly extend the capability to study short-lived nuclei by producing beams of rare isotopes at unprecedented intensities. The SPIRAL2-LINAC coupled with the Super Separator Spectrometer (S3) recoil separator will facilitate the production of neutron-deficient nuclei close to the proton dripline as well as super heavy nuclei via fusion-evaporation...
The combination of large arrays of high-purity germanium (HPGe) detectors with auxiliary particle detection systems is among the most powerful methods for studying atomic nuclei. It is done through nuclear spectroscopy at radioactive ion beam facilities such as TRIUMF-ISAC [1] together with the use of high-efficiency gamma-ray spectrometers like GRIFFIN (The Gamma-Ray Infrastructure For...
Atoms of different chemical elements possess spectra that serve as their unique fingerprints. Our knowledge of their spectra has allowed the identification of heavy elements in extragalactic stars, and even in neutron star mergers where half of the elements are thought to be produced.
Till date, very little is known about the atomic structure of the heaviest elements, which can only be...
