Foundation, HEP Software Aarrestad, Thea Amoroso, Simone Atkinson, Markus Julian Bendavid, Joshua Boccali, Tommaso Bocci, Andrea Buckley, Andy Cacciari, Matteo Calafiura, Paolo
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Common and community software packages, such as ROOT, Geant4 and event generators have been a key part of the LHC's success so far and continued development and optimisation will be critical in the future. The challenges are driven by an ambitious physics programme, notably the LHC accelerator upgrade to high-luminosity, HL-LHC, and the correspondi...

Gulyás, András Heszberger, Zalán Biró, József Pléh, Csaba Sári (a.k.a. Su-la-ce), László

Aktosun, Tuncay Weder, Ricardo Aktosun, Tuncay Weder, Ricardo

Charlton, M. Choi, J. J. Chung, M. Clade, P. Comini, P. Crepin, P-P. Crivelli, P. Dalkarov, O. Debu, P. Dodd, L.
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For the GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment at CERN's Antiproton Decelerator (AD) facility we have constructed a source of slow positrons, which uses a low-energy electron linear accelerator (linac). The driver linac produces electrons of 9 MeV kinetic energy that create positrons from bremsstrahlung-induced pair produ...

Allori, Valia Bassi, Angelo Dürr, Detlef Zanghì, Nino Adler, Stephen L. Bricmont, Jean Goldstein, Sheldon Hemmick, Douglas Dürr, Detlef Struyve, Ward
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Gadelshin, Vadim Maratovich Wilkins, Shane Fedosseev, Valentin Nikolaevich Barbero, Ermanno Barozier, Vincent Bernardes, Ana-Paula Chevallay, Eric Cocolios, Thomas Elias Crepieux, Bernard Dockx, Kristof
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Published in
Hyperfine Interactions

The CERN-MEDICIS facility aims to produce emerging medical radionuclides for the theranostics approach in nuclear medicine with mass separation of ion beams. To enhance the radioisotope yield and purity of collected samples, the resonance ionization laser ion source MELISSA was constructed, and provided the first laser ions at the facility in 2019....

Li, Ju Shan, Zhiwei Ma, Evan
Published in
MRS Bulletin

“Smaller is stronger.” Nanostructured materials such as thin films, nanowires, nanoparticles, bulk nanocomposites, and atomic sheets can withstand non-hydrostatic (e.g., tensile or shear) stresses up to a significant fraction of their ideal strength without inelastic relaxation by plasticity or fracture. Large elastic strains, up to ∼10%, can be ge...

Yordanov, Deyan T. Rodríguez, Liss V. Balabanski, Dimiter L. Bieroń, Jacek Bissell, Mark L. Blaum, Klaus Cheal, Bradley Ekman, Jörgen Gaigalas, Gediminas Garcia Ruiz, Ronald F.
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Published in
Communications Physics

Measurements of the hyperfine structure of chemical elements isotopes provide unique insight into the atomic nucleus in a nuclear model-independent way. The authors present collinear laser spectroscopy data obtained at the CERN ISOLDE and measure hyperfine splitting along a long chain of odd-mass tin isotopes.

Ellis, John He, Hong-Jian Xiao, Rui-Qing
Published in
Science China Physics, Mechanics & Astronomy

Neutral triple gauge couplings (nTGCs) are absent in the standard model effective theory up to dimension-6 operators, but could arise from dimension-8 effective operators. In this work, we study the pure gauge operators of dimension-8 that contribute to nTGCs and are independent of the dimension-8 operator involving the Higgs doublet. We show that ...

Anand, Nikhil Khandker, Zuhair U. Walters, Matthew T.
Published in
Journal of High Energy Physics

We consider Lorentzian CFT Wightman functions in momentum space. In particular, we derive a set of reference formulas for computing two- and three-point functions, restricting our attention to three-point functions where the middle operator (corresponding to a Hamiltonian density) carries zero spatial momentum, but otherwise allowing operators to h...