CERN Accelerating science

CERN Document Server 380 registres trobats  1 - 10següentfinal  anar al registre: La cerca s'ha fet en 0.66 segons. 
1.
Refining the nuclear mass surface with the mass of $^{103}$Sn / Nies, L. (CERN ; Greifswald U.) ; Atanasov, D. (LP2I, Bordeaux) ; Athanasakis-Kaklamanakis, M. (CERN ; Leuven U.) ; Au, M. (CERN ; Mainz U.) ; Bernerd, C. (CERN) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Chrysalidis, K. (CERN) ; Fischer, P. (Greifswald U.) ; Heinke, R. (CERN) ; Klink, C. (CERN ; Darmstadt, Tech. U.) et al.
Mass measurements with the ISOLTRAP mass spectrometer at CERN-ISOLDE improve mass uncertainties of neutron-deficient tin isotopes towards doubly-magic $^{100}$Sn. [...]
arXiv:2410.17995.
- 13.
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2.
Simulations of a cryogenic, buffer-gas filled Paul trap for low-emittance ion bunches / Lechner, S (CERN ; Vienna, Tech. U. ; McGill U.) ; Sels, S (CERN) ; Belosevic, I (TRIUMF) ; Buchinger, F (McGill U.) ; Fischer, P (Greifswald U.) ; Kanitz, C (Erlangen - Nuremberg U.) ; Lagaki, V (CERN ; Greifswald U.) ; Maier, F M (CERN ; Greifswald U.) ; Plattner, P (CERN ; Innsbruck U.) ; Schweikhard, L (Greifswald U.) et al.
Many experiments with pulsed ion beams benefit from or even require ion bunches with both small temporal width as well as small energy spread. To achieve optimal ion-beam preparation, a buffer-gas filled cryogenic Paul trap is being developed in the context of the Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS). [...]
2024 - 13 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1065 (2024) 169471 Fulltext: PDF;
3.
Testing the mass separation capabilities of the new ISOLDE isobar separator / Nies, L (CERN, Switzerland) ; Fischer, P (University of Greifswald, Germany) ; Giesel, P F (University of Greifswald, Germany) ; Lange, D (MPIK, Germany) ; Lechner, S (CERN, Switzerland) ; Maier, F M (FRIB, USA) ; Malbrunot-Ettenauer, S (TRIUMF, Canada) ; Roitman, A (McGill University, Canada) ; Schmidt, A (Technical University of Darmstadt, Germany) ; Schweikhard, L (University of Greifswald, Germany) et al.
CERN-INTC-2024-043 ; INTC-I-279.
- 2024.
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4.
A multi-reflection time-of-flight mass spectrometer for the offline ion source of the PUMA experiment / Schlaich, M. (Darmstadt, Tech. Hochsch.) ; Fischer, J. (Darmstadt, Tech. Hochsch.) ; Fischer, P. (Greifswald U.) ; Klink, C. (Darmstadt, Tech. Hochsch.) ; Obertelli, A. (Darmstadt, Tech. Hochsch.) ; Schmidt, A. (Darmstadt, Tech. Hochsch.) ; Schweikhard, L. (Greifswald U.) ; Wienholtz, F. (Darmstadt, Tech. Hochsch.)
The antiProton Unstable Matter Annihilation experiment (PUMA) at CERN aims at investigating the nucleon composition in the matter density tail of radioactive as well as stable isotopes by use of low-energy antiproton-nucleon annihilation processes. For this purpose, antiprotons provided by the Extra Low ENergy Antiproton (ELENA) facility will be trapped together with the ions of interest. [...]
arXiv:2311.16150.- 2023-10-31 - 9 p. - Published in : Int. J. Mass Spectrometry 495 (2024) 117166 Fulltext: PDF;
5.
Further evidence for shape coexistence in $^{79}$Zn$^{m}$ near doubly-magic $^{78}$Ni / Nies, L. (CERN ; Greifswald U.) ; Canete, L. (Jyvaskyla U. ; Surrey U.) ; Dao, D.D. (Strasbourg, IPHC) ; Giraud, S. (GANIL) ; Kankainen, A. (Jyvaskyla U.) ; Lunney, D. (IJCLab, Orsay) ; Nowacki, F. (Strasbourg, IPHC) ; Bastin, B. (GANIL) ; Stryjczyk, M. (Jyvaskyla U.) ; Ascher, P. (LP2I, Bordeaux) et al.
Isomers close to doubly-magic $^{78}_{28}$Ni$_{50}$ provide essential information on the shell evolution and shape coexistence near the ${Z=28}$ and ${N=50}$ double shell closure. We report the excitation energy measurement of the $1/2^{+}$ isomer in $^{79}_{30}$Zn$_{49}$ through independent high-precision mass measurements with the JYFLTRAP double Penning trap and with the ISOLTRAP Multi-Reflection Time-of-Flight Mass Spectrometer. [...]
arXiv:2310.16915.- 2023-11-30 - 10 p. - Published in : Phys. Rev. Lett.
- Published in : Phys. Rev. Lett. Fulltext: PDF;
6.
Increased beam energy as a pathway towards a highly selective and high-flux MR-ToF mass separator / Maier, F M (CERN ; Greifswald U.) ; Buchinger, F (McGill U.) ; Croquette, L (McGill U.) ; Fischer, P (Greifswald U.) ; Heylen, H (CERN) ; Hummer, F (CERN ; McGill U.) ; Kanitz, C (CERN) ; Kwiatkowski, A A (TRIUMF) ; Lagaki, V (CERN) ; Lechner, S (CERN ; McGill U.) et al.
Many experiments at radioactive ion beam (RIB) facilities suffer from isobaric contamination, i.e. unwanted ions of similar mass. [...]
2023 - 17 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1056 (2023) 168545 Fulltext: PDF;
7.
Measurement of the inclusive semileptonic $B$ meson branching fraction in 62.8 fb$^{-1}$ of Belle II data / Belle-II Collaboration
We report a measurement of the branching fraction of inclusive semileptonic $B$ meson decays $B\to X_c\ell\nu\ell$ in $\Upsilon(4S)\to B\bar B$~data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy $e^+e^-$ collider and corresponding to 62.8 fb$^{-1}$ of integrated luminosity. [...]
arXiv:2111.09405 ; BELLE2-CONF-PH-2021-012.
- 17.
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8.
The ATLAS experiment at the CERN Large Hadron Collider: a description of the detector configuration for Run 3 / ATLAS Collaboration
The ATLAS detector is installed in its experimental cavern at Point 1 of the CERN Large Hadron Collider. During Run 2 of the LHC, a luminosity of $\mathcal{L}=2\times 10^{34}\mathrm{cm}^{-2}\mathrm{s}^{-1}$ was routinely achieved at the start of fills, twice the design luminosity. [...]
arXiv:2305.16623; CERN-EP-2022-259.- Geneva : CERN, 2024-05-23 - 233 p. - Published in : JINST 19 (2024) P05063 Fulltext: 2305.16623 - PDF; document - PDF; External link: Previous draft version
In : The Large Hadron Collider and The Experiments for Run 3
9.
In-source and in-trap formation of molecular ions in the actinide mass range at CERN-ISOLDE / Au, M. (CERN ; Mainz U.) ; Athanasakis-Kaklamanakis, M. (CERN ; Leuven U.) ; Nies, L. (CERN ; Greifswald U.) ; Ballof, J. (CERN ; Michigan State U., East Lansing (main) ; Philipps U. Marburg) ; Berger, R. (CERN) ; Chrysalidis, K. (CERN) ; Fischer, P. (Greifswald U.) ; Heinke, R. (CERN) ; Johnson, J. (Leuven U.) ; Köster, U. (CERN ; Laue-Langevin Inst.) et al.
The use of radioactive molecules for fundamental physics research is a developing interdisciplinary field limited dominantly by their scarce availability. In this work, radioactive molecular ion beams containing actinide nuclei extracted from uranium carbide targets are produced via the Isotope Separation On-Line technique at the CERN-ISOLDE facility. [...]
arXiv:2303.12215.- 2023-06-02 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., B 541 (2023) 375-379 Fulltext: 2303.12215 - PDF; Publication - PDF;
10.
Exclusive $B \to X_u \ell \nu_\ell$ Decays with Hadronic Full-event-interpretation Tagging in 62.8 fb$^{-1}$ of Belle II Data / Belle-II Collaboration
We present a reconstruction in early data of the semileptonic decay $B^+ \to \pi^0 \ell^+ \nu_\ell$, and first results of a reconstruction of the decays $B^+ \to \rho^0 \ell^+ \nu_\ell$ and $B^0 \to \rho^- \ell^+ \nu_\ell$ in a sample corresponding to 62.8 fb$^{-1}$ of Belle II data using hadronic $B$-tagging via the full-event-interpretation algorithm. [...]
arXiv:2111.00710 ; BELLE2-CONF-PH-2021-013.
- 24.
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