2023-11-29
04:19 |
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2023-11-28
10:20 |
Feasibility of using crystal channeling for the beam loss mitigation in slow extraction at 8GeV
/ Nagaslaev, V (Fermilab) ; Tropin, I (Fermilab) ; Esposito, L (CERN) ; Fraser, M (CERN) ; Goddard, B (CERN) ; Velotti, F (CERN) ; Bandiera, L (Ferrara U.) ; Guidi, V (Ferrara U.) ; Mazzolari, A (Ferrara U.) ; Romagnoni, M (Ferrara U.) et al.
In the accelerator applications of slow extraction for High Energy Physics (HEP), one of the prime challenges is the mitigation of beam losses, which is becoming increasingly critical with the continuous rise in beam power. A significant breakthrough was achieved earlier at CERN through the successful deployment of proton beam channeling in a crystal at 400 GeV, effectively diverting the beam away from extraction septa and offering new avenues for improving slow extraction efficiency. [...]
2023 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1058 (2024) 168892
In : 9th International Conference on Charged & Neutral Particles Channeling Phenomena (Channeling 2023), Riccione, Italy, 4 - 9 June 2023, pp.168892
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2023-11-28
10:20 |
Deformation versus Sphericity in the Ground States of the Lightest Gold Isotopes
/ Cubiss, J G (York U., England) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Barzakh, A E (Unlisted) ; Van Duppen, P (KU Leuven, Dept. Phys. Astron.) ; Hilaire, S (CEA DAM) ; Péru, S (CEA DAM) ; Goriely, S (Brussels U., IAA) ; Al Monthery, M (York U., England) ; Althubiti, N A (Manchester U. ; Al Jouf U. ; Ain Shames U.) ; Andel, B (Comenius U.) et al.
The changes in mean-squared charge radii of neutron-deficient gold nuclei have been determined using the in-source, resonance-ionization laser spectroscopy technique, at the ISOLDE facility (CERN). From these new data, nuclear deformations are inferred, revealing a competition between deformed and spherical configurations. [...]
2023 - 8 p.
- Published in : Phys. Rev. Lett. 131 (2023) 202501
Fulltext: PDF;
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2023-11-28
10:20 |
Shape evolution in even-mass $^{98-104}$Zr isotopes via lifetime measurements using the $\gamma \gamma $-coincidence technique
/ Pasqualato, G (IJCLab, Orsay) ; Ansari, S (IRFU, Saclay) ; Heines, J S (Oslo U.) ; Modamio, V (Oslo U.) ; Görgen, A (Oslo U.) ; Korten, W (IRFU, Saclay) ; Ljungvall, J (IJCLab, Orsay ; Strasbourg, IPHC) ; Clément, E (GANIL) ; Dudouet, J (IP2I, Lyon) ; Lemasson, A (GANIL) et al.
The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first $2^+$ state and the increase in the transition strength B(E2; $2^+_1\rightarrow 0^+_1)$ going from $^{98}$Zr to $^{100}$Zr has been the first example of “quantum phase transition” in nuclear shapes, which has few equivalents in the nuclear chart. [...]
2023 - 13 p.
- Published in : Eur. Phys. J. A 59 (2023) 276
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2023-11-28
10:20 |
Top Quarks from Tevatron to the LHC
/ Jung, Andreas (Purdue U.) ; Kieseler, Jan (CERN)
Recent measurements in the top quark sector at the CERN Large Hadron Collider are discussed. This review discusses the most recent measurements of inclusive and differential top quark cross-sections in strong and electroweak production of top quarks and related measurements, such as top quark properties, as well as searches, including EFT approaches..
2023 - 27 p.
- Published in : Symmetry 15 (2023) 1915
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2023-11-28
08:44 |
Ultra-thin polymer foil cryogenic window for antiproton deceleration and storage
/ Latacz, B.M. (CERN ; RIKEN (main)) ; Arndt, B.P. (Heidelberg, Max Planck Inst. ; Darmstadt, GSI) ; Devlin, J.A. (CERN ; RIKEN (main)) ; Erlewein, S.R. (RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Fleck, M. (RIKEN (main) ; Tokyo U., Komaba) ; Jäger, J.I. (CERN ; RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Micke, P. (CERN ; RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Umbrazunas, G. (RIKEN (main) ; Zurich, ETH) ; Wursten, E. (RIKEN (main)) ; Abbass, F. (Mainz U., Inst. Phys.) et al.
We present the design and characterisation of a cryogenic window based on an ultra-thin aluminised PET foil at T < 10K, which can withstand a pressure difference larger than 1bar at a leak rate < $1\times 10^{-9}$ mbar$\cdot$ l/s. Its thickness of approximately 1.7 $\mu$m makes it transparent to various types of particles over a broad energy range. [...]
arXiv:2308.12873.-
2023-10-01 - 11 p.
- Published in : Rev. Sci. Instrum. 94 (2023) 103310
Fulltext: 2308.12873 - PDF; Publication - PDF;
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2023-11-28
08:41 |
Electromagnetic moments of the antimony isotopes $^{112−133}$Sb
/ Lechner, S. (CERN ; Vienna, Tech. U., Atominst.) ; Miyagi, T. (Darmstadt, EMMI ; Heidelberg, Max Planck Inst. ; TRIUMF) ; Xu, Z.Y. (Leuven U. ; Tennessee U.) ; Bissell, M.L. (Manchester U. ; CERN) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cheal, B. (Liverpool U.) ; Devlin, C.S. (Liverpool U.) ; Garcia Ruiz, R.F. (CERN) ; Ginges, J.S.M. (Queensland U.) ; Heylen, H. (CERN ; Heidelberg, Max Planck Inst.) et al.
Nuclear moments of the antimony isotopes $^{113-133}$Sb are measured by collinear laser spectroscopy and used to benchmark phenomenological shell-model and \textit{ab initio} calculations in the valence-space in-medium similarity renormalization group (VS-IMSRG). The shell-model calculations reproduce the electromagnetic moments over all Sb isotopes when suitable effective $g$-factors and charges are employed. [...]
arXiv:2311.01110.-
2023-10-26 - 9 p.
Fulltext: 2311.01110 - PDF; Publication - PDF;
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2023-11-28
08:37 |
Constraining extended cosmologies with GW×LSS cross-correlations
/ Bosi, M. (Padua U.) ; Bellomo, N. (U. Texas, Austin (main)) ; Raccanelli, A. (Padua U. ; INFN, Padua ; Padua Observ. ; CERN)
The rapid development of gravitational wave astronomy provides the unique opportunity of exploring the dynamics of the Universe using clustering properties of coalescing binary black hole mergers. Gravitational wave data, along with information coming from future galaxy surveys, have the potential of shedding light about many open questions in Cosmology, including those regarding the nature of dark matter and dark energy. [...]
arXiv:2306.03031; UTWI-20-2023.-
2023-11-24 - 12 p.
- Published in : JCAP 2311 (2023) 086
Fulltext: Publication - PDF; 2306.03031 - PDF;
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2023-11-23
06:53 |
The micro-RWELL detector for the phase-2 upgrade of the LHCb muon system
/ Bencivenni, G (Frascati) ; De Oliveira, R (CERN) ; Felici, G (Frascati) ; Gatta, M (Frascati) ; Giovannetti, M (Frascati ; INFN, Rome2) ; Morello, G (Frascati) ; Poli Lener, M (Frascati)
The micro-RWELL detector (μ-RWELL) is a single amplification stage resistive Micro Pattern Gaseous Detector (MPGD), based on a copper-clad polyimide foil patterned with a micro-well matrix coupled with the readout PCB through a DLC resistive film (10÷100MΩ/□). For the phase-2 upgrade of the LHCb experiment, proposed for the LHC Run-5, the excellent performance of the current muon detector will need to be maintained at 40 times the pile-up level experienced during Run-2. [...]
2023
In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, Italy, 22 - 28 May 2022, pp.168075
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2023-11-23
06:53 |
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