CERN Accelerating science

CERN Document Server Znaleziono 32 rekordów  1 - 10następnykoniec  skocz do rekordu: Szukanie trwało 0.64 sekund. 
1.
CEPC Technical Design Report: Accelerator / CEPC Study Group Collaboration
The Circular Electron Positron Collider (CEPC) is a large scientific project initiated and hosted by China, fostered through extensive collaboration with international partners. The complex comprises four accelerators: a 30 GeV Linac, a 1.1 GeV Damping Ring, a Booster capable of achieving energies up to 180 GeV, and a Collider operating at varying energy modes (Z, W, H, and ttbar). [...]
arXiv:2312.14363; IHEP-CEPC-DR-2023-01; IHEP-AC-2023-01.- 2024-06-03 - 1106 p. - Published in : Radiat. Detect. Technol. Methods 8 (2024) 1-1105 Fulltext: 2312.14363 - PDF; Publication - PDF;
2.
Between atomic and nuclear physics: radioactive decays of highly-charged ions / Atanasov, Dinko (Darmstadt, GSI ; Heidelberg, Max Planck Inst.) ; Blaum, Klaus (Heidelberg, Max Planck Inst. ; Heidelberg U.) ; Bosch, Fritz (Darmstadt, GSI) ; Brandau, Carsten (Darmstadt, GSI ; U. Giessen (main)) ; Bühler, Paul (Stefan Meyer Inst. Subatomare Phys.) ; Chen, Xiangcheng (Darmstadt, GSI ; Lanzhou, Inst. Modern Phys.) ; Dillmann, Iris (Darmstadt, GSI ; U. Giessen (main) ; TRIUMF) ; Faestermann, Thomas (Munich, Tech. U.) ; Gao, Bingshui (Darmstadt, GSI ; Heidelberg, Max Planck Inst. ; Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) ; Geissel, Hans (Darmstadt, GSI ; U. Giessen (main)) et al. /FRS-ESR ; ILIMA ; SPARC ; TBWD,
Highly charged radioactive ions can be stored for extended periods of time in storage rings which allows for precision measurements of their decay modes. The straightforward motivation for performing such studies is that fully ionised nuclei or few-electron ions can be viewed as clean quantum-mechanical systems, in which the interactions of the many electrons can be either excluded or treated precisely. [...]
IOP, 2015 - 17 p. - Published in : J. Phys. B 48 (2015) 144024
3.
New test of modulated electron capture decay of hydrogen-like $^{142}$Pm ions: precision measurement of purely exponential decay / FRS-ESR Collaboration
An experiment addressing electron capture (EC) decay of hydrogen-like $^{142}$Pm$^{60+}$ ions has been conducted at the experimental storage ring (ESR) at GSI. The decay appears to be purely exponential and no modulations were observed. [...]
arXiv:1907.06920.- 2019-10-10 - 9 p. Article from SCOAP3: PDF; Fulltext: PDF;
4.
CEPC Conceptual Design Report: Volume 2 - Physics & Detector / CEPC Study Group Collaboration
The Circular Electron Positron Collider (CEPC) is a large international scientific facility proposed by the Chinese particle physics community to explore the Higgs boson and provide critical tests of the underlying fundamental physics principles of the Standard Model that might reveal new physics. [...]
arXiv:1811.10545 ; IHEP-CEPC-DR-2018-02 ; IHEP-EP-2018-01 ; IHEP-TH-2018-01.
- 2018 - 424.
Fulltext
5.
$\beta$-decay half-lives and $\beta$-delayed neutron emission probabilities for several isotopes of Au, Hg, Tl, Pb and Bi, beyond $N=126$ / Caballero-Folch, R. (Barcelona, Polytechnic U. ; TRIUMF) ; Domingo-Pardo, C. (Valencia U., IFIC) ; Agramunt, J. (Valencia U., IFIC) ; Algora, A. (Valencia U., IFIC ; Debrecen, Inst. Nucl. Res.) ; Ameil, F. (Darmstadt, GSI) ; Ayyad, Y. (U. Santiago de Compostela (main)) ; Benlliure, J. (U. Santiago de Compostela (main)) ; Bowry, M. (Surrey U.) ; Calviño, F. (Barcelona, Polytechnic U.) ; Cano-Ott, D. (Madrid, CIEMAT) et al.
$Background:$ Previous measurements of $\beta$-delayed neutron emitters comprise around 230 nuclei, spanning from the $^{8}$He up to $^{150}$La. Apart from $^{210}$Tl, with a minuscule branching ratio of 0.007\%, no other neutron emitter is measured yet beyond $A=150$. [...]
arXiv:1701.03845.- 2017-06-23 - 16 p. - Published in : Phys. Rev. C 95 (2017) 064322 Fulltext: PDF;
6.
$\beta$-decay and $\beta$-delayed Neutron Emission Measurements at GSI-FRS Beyond N=126, for r-process Nucleosynthesis / Caballero-Folch, R (Barcelona U.) ; Domingo-Pardo, C (Valencia U., IFIC) ; Cortès, G (Barcelona U.) ; Taín, J L (Valencia U., IFIC) ; Agramunt, J (Valencia U., IFIC) ; Algora, A (Valencia U., IFIC ; Debrecen, Inst. Nucl. Res.) ; Ameil, F (Darmstadt, GSI) ; Ayyad, Y (U. Santiago de Compostela (main)) ; Benlliure, J (U. Santiago de Compostela (main)) ; Bowry, M (Surrey U.) et al.
New measurements of very exotic nuclei in the neutron-rich region beyond N=126 have been performed at the GSI facility with the fragment separator (FRS). The aim of the experiment is to determine half-lives and beta-delayed neutron emission branching ratios of isotopes of Hg, Tl and Pb in this region. [...]
2014 - 3 p. - Published in : Nucl. Data Sheets 120 (2014) 81-83
7.
First measurement of several $\beta$-delayed neutron emitting isotopes beyond N=126 / Caballero-Folch, R. ; Domingo-Pardo, C. ; Agramunt, J. ; Algora, A. ; Ameil, F. ; Arcones, A. ; Ayyad, Y. ; Benlliure, J. ; Borzov, I.N. ; Bowry, M. et al.
The $\beta$-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with $\beta$-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb and Bi in the mass region N$\gtrsim$126. These are the heaviest species where neutron emission has been observed so far. [...]
arXiv:1511.01296.- 2016-06-29 - 6 p. - Published in : Phys. Rev. Lett. 117 (2016) 012501 Fulltext: 10.1103_PhysRevLett.117.012501 - PDF; arXiv:1511.01296 - PDF; External link: Preprint
8.
Concept for a Future Super Proton-Proton Collider / Tang, Jingyu (Beijing, Inst. High Energy Phys.) ; Berg, J. Scott (Brookhaven) ; Chai, Weiping (Lanzhou, Inst. Modern Phys.) ; Chen, Fusan (Beijing, Inst. High Energy Phys.) ; Chen, Nian (Tsinghua U., Beijing) ; Chou, Weiren (Fermilab) ; Dong, Haiyi (Beijing, Inst. High Energy Phys.) ; Gao, Jie (Beijing, Inst. High Energy Phys.) ; Han, Tao (Pittsburgh U.) ; Leng, Yongbin (Shanghai SSRF ; SINAP, Shanghai) et al.
Following the discovery of the Higgs boson at LHC, new large colliders are being studied by the international high-energy community to explore Higgs physics in detail and new physics beyond the Standard Model. [...]
arXiv:1507.03224.
- 2015. - 34 p.
Full text - Fulltext
9.
Designs of High-intensity Proton Linacs with Non-equipartitioning / Meng, Cai (Beijing, Inst. High Energy Phys.) ; Li, Zhihui (Beijing, Inst. High Energy Phys.) ; Pei, Shilun (Beijing, Inst. High Energy Phys.) ; Sun, Biao (Beijing, Inst. High Energy Phys.) ; Tang, Jingyu (Beijing, Inst. High Energy Phys.) ; Yan, Fang (Beijing, Inst. High Energy Phys.) ; Garoby, Roland (CERN) ; Gerigk, Frank (CERN) ; Lombardi, Alessandra (CERN)
Superconducting technology is playing more and more important roles in high-power proton linacs. Periodic phase advance less than 90 degrees and equipartitioning design are considered very important principles in linac design. [...]
2014 - 3 p. - Published in : , pp. THPME021 Fulltext: PDF; External link: Published version from JACoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.THPME021
10.
High-resolution measurement of the time-modulated orbital electron capture and of the $\beta^+$ decay of hydrogen-like $^{142}$Pm$^{60+}$ ions / Two-Body-Weak-Decays Collaboration
The periodic time modulations, found recently in the two-body orbital electron-capture (EC) decay of both, hydrogen-like $^{140}$Pr$^{58+}$ and $^{142}$Pm$^{60+}$ ions, with periods near to 7s and amplitudes of about 20%, were re-investigated for the case of $^{142}$Pm$^{60+}$ by using a 245 MHz resonator cavity with a much improved sensitivity and time resolution. We observed that the exponential EC decay is modulated with a period $T = 7.11(11)$s, in accordance with a modulation period $T = 7.12(11)$ s as obtained from simultaneous observations with a capacitive pick-up, employed also in the previous experiments. [...]
arXiv:1309.7294.- 2013-11-04 - 8 p. - Published in : Phys. Lett. B 726 (2013) 638-645 Fulltext: PDF; External link: Preprint

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