- Published on 17 September 2021
The 6th workshop of the Hellenic Institute of Nuclear Physics (HINP) took place as a special virtual event, co-organized by the National and Kapodistrian University of Athens and the University of Ioannina on 14-16 May 2021.
The nuclear physics laboratories of these institutions and of the Aristotle University of Thessaloniki are founding members of HINP, which is a virtual institute with non-profitable character.
- Published on 27 August 2021
The 25th edition of the Computing in High Energy and Nuclear Physics (CHEP) conference took place as a special virtual event, organised by CERN, from 17th to 21st May 2021.
The CHEP conference series has run for more than 3 decades and brings together physicists, software engineers and computing experts from major experiments, laboratories and facilities.
- Published on 12 August 2021
The Publishers and Editors-in-Chief of EPJB: Condensed Matter and Complex Systems are delighted to announce the appointment of three new members of the Editorial Board: Prof Veronica Barone of Central Michigan University, Mount Pleasant, USA; Prof Sanghamitra Neogiof the University of Colorado, Boulder, USA; and Dr Philipp Hövel (starting September 1st), of the School of Mathematical Sciences, University College Cork, Ireland.
- Published on 06 August 2021
Advanced mathematical analysis of the ionisation of a helium atom by an impacting proton has revealed where discrepancies arise between experiments and existing theoretical calculations of the process
When an atom is impacted by a fast-moving proton, one of its orbiting electrons may be knocked away, leaving behind a positively-charged ion. To understand this process, it is important for researchers to investigate distributions in the angles at which electrons travel when knocked away. In a new study published in EPJ D, M. Purkait and colleagues at Ramakrishna Mission Residential College in India have clearly identified particular areas where discrepancies arise between the angular distributions measured in theories and experiments.
- Published on 05 August 2021
By combining mass spectroscopy with further analytical and simulation techniques, researchers have revealed key differences in the fragmentation of dipeptide biomolecules with different chiral structures
‘Chirality’ describes the difference in structure between two molecules that are, or are close to being mirror images of each other. Although their chemical formulae are identical, these molecules have slightly different properties, making it useful for chemists to distinguish between them. The technique of ‘mass spectroscopy’ can provide detailed information about their complex molecular structures, but it is also blind to any differences between their chiral structures. In new research published in EPJ D, a team led by Anne Zehnacker at Paris-Saclay University combine mass spectroscopy with a range of other simulation and analytical techniques, allowing them to distinguish between two chiral forms of a dipeptide biomolecule.
- Published on 05 August 2021
Whilst modelling the forces acting upon a thrown beer mat, physicists discover why flat discs have such poor flight potential.
The question ‘Why do beer mats make bad frisbees?’ may initially seem like something of an odd inquiry to spark research. Yet, by considering the physical properties of such a common everyday item, physicists can create models that also describe the behaviours of a wide range of objects. In a new paper published in EPJ Plus, Johann Ostmeyer, the University of Bonn, Germany, and his co-authors look at the dynamics that give beer mats poor fight potential.
- Published on 03 August 2021
New analysis of two recently translated papers, first published in the 1850s, assesses the early methods used by Alfred Clebsch to describe the flow of incompressible fluids, and explores their impact on active areas of cutting-edge research
Alfred Clebsch is widely considered to be one of the fathers of algebraic geometry. Born in Prussia in 1833, he completed his PhD at just 21, and went on to publish two important papers soon afterwards, in 1857 and 1859. In these studies, he introduced mathematical constructs that are now called ‘Clebsch variables,’ which describe the velocity field of a fluid, and which are widely cited. Now, a team of researchers in France, Germany, the US and Brazil present the first English translations of Clebsch’s two early papers after more than 160 years. In an accompanying study published in EPJ H, important new explanations are provided for the difficult language of the papers.
EPJ ST Highlight - Using particle accelerators to investigate the quark-gluon plasma of the infant Universe
- Published on 29 July 2021
In the early stages of the Universe, quarks and gluons were quickly confined to protons and neutrons which went on to form atoms. With particle accelerators reaching increasingly higher energy levels the opportunity to study this fleeting primordial state of matter has finally arrived.
Quark-Gluon Plasma (QGP) is a state of matter which existed only for the briefest of times at the very beginning of the Universe with these particles being quickly clumped together to form the protons and neutrons that make up the everyday matter that surrounds us. The challenge of understanding this primordial state of matter falls to physicists operating the world’s most powerful particle accelerators. A new special issue of EPJ Special Topics entitled ‘Quark-Gluon Plasma and Heavy-Ion Phenomenology’ edited by Munshi G. Mustafa, Saha Institute of Nuclear Physics, Kolkata, India, brings together seven papers that detail our understanding of QGP and the processes that transformed it into the baryonic matter around us on an everyday basis.
- Published on 28 July 2021
A timely new collection reminds us that even in times of great hardship, our understanding of the Universe’s most explosive, spectacular and mysterious events and objects continues to grow
Supernovas, neutron stars, and neutron star mergers are some of the Universe’s most powerful events and mysterious objects, leftover after the burning of nuclear fuel is exhausted within massive stars. A new special issue of EPJ Special Topics entitled ‘Nuclear astrophysics in our time: supernovae, neutron stars and binary neutron star mergers’ edited by Debades Bandyopadhyay, Saha Institute of Nuclear Physics, Kolkata, India, brings together several papers that document our understanding of these astrophysical events and compact stars.
- Published on 27 July 2021
A new collection of papers focusing on the dynamics of nuclei pays fitting tribute to Iraqi/Brazilian physicist Mahir Saleh Hussein.
On 16th May 2019 Iraqi/ Brazilian physicist Mahir Saleh Hussein passed away leaving behind a distinguished career of achievements in a broad range of physics disciplines. There is, perhaps, no better way of paying tribute to this influential figure in physics than presenting a collection of cutting-edge, peer-reviewed papers. A special edition of EPJ A, edited by Valdir Guimarães, Universidade de São Paulo Instituto de Física, Brazil, Carlos Bertulani, Department of Physics of the Texas A&M University-Commerce, USA, and Nicolas Alamanos, Deputy Director of the Institute of Research into the Fundamental Laws of the Universe (IRFU), France, brings together a collection of papers focusing on nuclei clustering and dynamics as a fitting tribute to Hussein.