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A concept for the extraction of the most refractory elements at CERN-ISOLDE as carbonyl complex ions
/ Ballof, J. (CERN ; Mainz U.) ; Chrysalidis, K. (CERN ; Mainz U., Inst. Phys.) ; Düllmann, Ch. E. (Mainz U. ; Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Fedosseev, V. (CERN) ; Granados, E. (CERN) ; Leimbach, D. (CERN ; Mainz U., Inst. Phys.) ; Marsh, B.A. (CERN) ; Ramos, J.P. (CERN ; Ecole Polytechnique, Lausanne ; SCK-CEN, Mol) ; Ringvall-Moberg, A. (CERN ; U. Gothenburg (main)) ; Rothe, S. (CERN) et al.
We introduce a novel thick-target concept tailored to the extraction of refractory 4d and 5d transition metal radionuclides of molybdenum, technetium, ruthenium and tungsten for radioactive ion beam production. Despite the more than 60-year old history of thick-target ISOL mass-separation facilities like ISOLDE, the extraction of the most refractory elements as radioactive ion beam has so far not been successful. [...]
arXiv:2108.01745.-
2022-05-17 - 18 p.
- Published in : Eur. Phys. J. A 58 (2022) 94
Fulltext: 2108.01745 - PDF; document - PDF;
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2.
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A cold electron-impact ion source driven by a photo-cathode – New opportunities for the delivery of radioactive molecular beams?
/ Ballof, Jochen (CERN ; Mainz U.) ; Au, Mia (CERN ; Mainz U.) ; Barbero, Ermanno (CERN) ; Chrysalidis, Katerina (CERN) ; Düllmann, Christoph E. (Mainz U. ; Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Fedosseev, Valentin (CERN) ; Granados, Eduardo (CERN) ; Heinke, Reinhard (CERN) ; Marsh, Bruce A. (CERN) ; Owen, Michael (CERN) et al.
The thick-target ISOL (Isotope mass Separation OnLine) method provides beams of more than 1000 radionuclides of 74 elements. The method is well established for elements with sufficiently high volatility at ca. [...]
arXiv:2110.00651.-
2022 - 8 p.
- Published in : J. Phys. : Conf. Ser. 2244 (2022) 012072
Fulltext: document - PDF; 2110.00651 - PDF;
In : 19th International Conference on Ion Sources (ICIS 2021), Vancouver, BC, Canada, 20 - 24 Sep 2021, pp.012072
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3.
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GeantV: Results from the prototype of concurrent vector particle transport simulation in HEP
/ Amadio, G. (CERN) ; Ananya, A. (CERN) ; Apostolakis, J. (CERN) ; Bandieramonte, M. (CERN ; Pittsburgh U.) ; Banerjee, S. (Fermilab) ; Bhattacharyya, A. (Bhabha Atomic Res. Ctr.) ; Bianchini, C. (Sao Paulo, IFT ; Mackenzie Presbiteriana U.) ; Bitzes, G. (CERN) ; Canal, P. (Fermilab) ; Carminati, F. (CERN) et al.
Full detector simulation was among the largest CPU consumer in all CERN experiment software stacks for the first two runs of the Large Hadron Collider (LHC). In the early 2010's, the projections were that simulation demands would scale linearly with luminosity increase, compensated only partially by an increase of computing resources. [...]
arXiv:2005.00949; FERMILAB-PUB-20-200-SCD.-
2021-01-03 - 34 p.
- Published in : Comput. Softw. Big Sci. 5 (2021) 3
Fulltext: fermilab-pub-20-200-scd - PDF; 2005.00949 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server (fulltext available)
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4.
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Spin density matrix elements in exclusive $\rho ^0$ meson muoproduction
/ COMPASS Collaboration
We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive $\rho ^0$ meson muoproduction at COMPASS using 160~GeV/$c$ polarised $ \mu ^{+}$ and $ \mu ^{-}$ beams impinging on a liquid hydrogen target. The measurement covers the kinematic range 5.0~GeV/$c^2$ $< W <$ 17.0~GeV/$c^2$, 1.0 (GeV/$c$)$^2$ $< Q^2 <$ 10.0 (GeV/$c$)$^2$ and 0.01 (GeV/$c$)$^2$ $< p_{\rm{T}}^2 <$ 0.5 (GeV/$c$)$^2$. [...]
arXiv:2210.16932; CERN-EP-2022-231.-
Geneva : CERN, 2023-10-13 - 32 p.
- Published in : Eur. Phys. J. C 83 (2023) 924
Draft (restricted): PDF; Fulltext: CERN-EP-2022-231 - PDF; Publication - PDF; 2210.16932 - PDF;
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Detecting and Studying High-Energy Collider Neutrinos with FASER at the LHC
/ FASER Collaboration
Neutrinos are copiously produced at particle colliders, but no collider neutrino has ever been detected. Colliders, and particularly hadron colliders, produce both neutrinos and anti-neutrinos of all flavors at very high energies, and they are therefore highly complementary to those from other sources. [...]
arXiv:1908.02310; CERN-EP-2019-160; KYUSHU-RCAPP-2019-003; SLAC-PUB-17460, UCI-TR-2019-19; SLAC-PUB-17460,
UCI-TR-2019-19.-
2020-01-25 - 33 p.
- Published in : Eur. Phys. J. C 80 (2020) 61
Article from SCOAP3: PDF; Fulltext: PDF;
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7.
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Workshop summary: Kaons@CERN 2023
/ Anzivino, G. (INFN, Perugia ; Perugia U.) ; Cuendis, Sergio Arguedas (Costa Rica U.) ; Bernard, V. (IJCLab, Orsay) ; Bijnens, J. (Lund U.) ; Bloch-Devaux, B. (Turin U.) ; Bordone, M. (CERN) ; Brizioli, F. (INFN, Perugia ; CERN) ; Brod, J. (Cincinnati U.) ; Camalich, J.M. (IAC, La Laguna ; Laguna U., Tenerife) ; Ceccucci, A. (CERN) et al.
Kaon physics is at a turning point -- while the rare-kaon experiments NA62 and KOTO are in full swing, the end of their lifetime is approaching and the future experimental landscape needs to be defined. With HIKE, KOTO-II and LHCb-Phase-II on the table and under scrutiny, it is a very good moment in time to take stock and contemplate about the opportunities these experiments and theoretical developments provide for particle physics in the coming decade and beyond. [...]
arXiv:2311.02923; CERN-TH-2023-206.-
2024-04-09 - 55 p.
- Published in : Eur. Phys. J. C
Fulltext: 2311.02923 - PDF; document - PDF;
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8.
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Smooth trends in fermium charge radii and the impact of shell effects
/ Warbinek, Jessica (Darmstadt, GSI ; Mainz U. ; CERN ; Helmholtz Inst., Mainz) ; Rickert, Elisabeth (Darmstadt, GSI ; Mainz U. ; Helmholtz Inst., Mainz) ; Raeder, Sebastian (Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Albrecht-Schönzart, Thomas (Colorado School of Mines) ; Andelic, Brankica (Darmstadt, GSI ; Helmholtz Inst., Mainz ; Groningen U.) ; Auler, Julian (Mainz U.) ; Bally, Benjamin (IRFU, Saclay) ; Bender, Michael (IP2I, Lyon) ; Berndt, Sebastian (Mainz U.) ; Block, Michael (Darmstadt, GSI ; Mainz U. ; Helmholtz Inst., Mainz) et al.
The quantum-mechanical nuclear-shell structure determines the stability and limits of the existence of the heaviest nuclides with large proton numbers Z ≳ 100 (refs. $^{1–3}$). [...]
2024 - 5 p.
- Published in : Nature 634 (2024) 1075-1079
Fulltext: PDF;
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9.
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A Common Tracking Software Project
/ Ai, Xiaocong (DESY) ; Allaire, Corentin (CERN) ; Calace, Noemi (CERN) ; Czirkos, Angéla (Eotvos U.) ; Elsing, Markus (CERN) ; Ene, Irina (UC, Berkeley) ; Farkas, Ralf (Bonn U.) ; Gagnon, Louis-Guillaume (UC, Berkeley) ; Garg, Rocky (Stanford U.) ; Gessinger, Paul (CERN) et al.
The reconstruction of the trajectories of charged particles, or track reconstruction, is a key computational challenge for particle and nuclear physics experiments. While the tuning of track reconstruction algorithms can depend strongly on details of the detector geometry, the algorithms currently in use by experiments share many common features. [...]
arXiv:2106.13593.-
2022-04-13 - 27 p.
- Published in : Comput. Softw. Big Sci. 6 (2022) 8
Fulltext: 2106.13593 - PDF; document - PDF;
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10.
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Radioactive boron beams produced by isotope online mass separation at CERN-ISOLDE
/ Ballof, J (CERN ; Mainz U., Inst. Kernchem.) ; Seiffert, C (CERN ; Darmstadt, Tech. U.) ; Crepieux, B (CERN) ; Düllmann, Ch E (Mainz U., Inst. Kernchem. ; Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Delonca, M (CERN) ; Gai, M (Connecticut U. LNS Avery Point Groton) ; Gottberg, A (CERN) ; Kröll, T (Darmstadt, Tech. U.) ; Lica, R (CERN ; Bucharest, IFIN-HH) ; Madurga Flores, M (CERN) et al.
We report on the development and characterization of the first radioactive boron beams produced by the isotope mass separation online (ISOL) technique at CERN-ISOLDE. Despite the long history of the ISOL technique which exploits thick targets, boron beams have up to now not been available. [...]
2019 - 11 p.
- Published in : Eur. Phys. J. A 55 (2019) 65
Fulltext (Open Access version from publisher): PDF;
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