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Beta delayed neutron emission of $N=84$ $^{132}$Cd
/ Madurga, M. (U. Tennessee, Knoxville) ; Xu, Z.Y. (U. Tennessee, Knoxville) ; Grzywacz, R. (U. Tennessee, Knoxville) ; Andreyev, A. (York U., England) ; Benzoni, G. (INFN, Milan) ; Borge, M.J.G. (CERN) ; Costache, C. (Bucharest, IFIN-HH) ; Cox, I. (U. Tennessee, Knoxville) ; Dimitrov, B. (Sofiya, Inst. Nucl. Res.) ; Van Duppen, P. (Leuven U.) et al.
Using the time-of-flight technique, we measured the beta-delayed neutron emission of $^{132}$Cd. [...]
arXiv:2412.04333.
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Exotic decay of $^{115}$Cs
/ Das, P (Saha Inst. ; HBNI, Mumbai) ; Datta, Ushasi (Saha Inst. ; HBNI, Mumbai) ; Chakraborty, S (Saha Inst. ; Pailan Coll. Mgt. Tech.) ; Rahaman, A (Saha Inst. ; A.C. Coll., Jalpaiguri) ; Tengblad, O (Madrid, Inst. Estructura Materia) ; Agrawal, B K (Saha Inst. ; HBNI, Mumbai) ; Becerril, A (Madrid, Inst. Estructura Materia) ; Cederkall, J (Lund U. (main)) ; Dey, J (Saha Inst. ; HBNI, Mumbai) ; Gottberg, A (CERN ; TRIUMF) et al.
The detailed study of the β+/EC decay of the very neutron-deficient and alpha-unbound nucleus Cs115 is presented. The measurement was performed at the ISOLDE, CERN where delayed charged particles and γ rays were detected. [...]
2023 - 6 p.
- Published in : Phys. Rev. C 108 (2023) 064304
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Differential measurement of trident production in strong electromagnetic fields
/ Nielsen, Christian F. (Aarhus U.) ; Holtzapple, Robert (Cal. Poly.) ; Lund, Mads M. (Aarhus U.) ; Surrow, Jeppe H. (Aarhus U.) ; Sørensen, Allan H. (Aarhus U.) ; Sørensen, Marc B. (Aarhus U.) ; Uggerhøj, Ulrik I. (Aarhus U.)
/CERN NA63 Collaboration
In this paper, we present experimental results and numerical simulations of trident production, $e^-\rightarrow e^-e^+e^-$, in a strong electromagnetic field. The experiment was conducted at CERN for the purpose of probing the strong-field parameter $\chi$ up to 2.4, using a 200 GeV electron beam penetrating a 400 $\mu$m thick germanium crystal oriented along the $\langle 110\rangle$ axis. [...]
arXiv:2307.03464.-
2023-09-01 - 29 p.
- Published in : Phys. Rev. D 108 (2023) 052013
Fulltext: Publication - PDF; 2307.03464 - PDF;
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The ECFA Early Career Researcher's Panel: composition, structure, and activities, 2021 - 2022
/ Alexandru Geanta, Andrei (Bucharest U.) ; Amendola, Chiara (IRFU, Saclay) ; Apolinario, Liliana (LIP, Lisbon) ; Arling, Jan-Hendrik (DESY) ; Ashkenazi, Adi (Tel Aviv U.) ; Augsten, Kamil (Prague, Tech. U.) ; Bagnaschi, Emanuele (CERN) ; Bakos, Evelin (Belgrade, Inst. Phys.) ; Barak, Liron (Tel Aviv U.) ; Bastos, Diogo (LIP, Lisbon) et al.
The European Committee for Future Accelerators (ECFA) Early Career Researcher's (ECR) panel, which represents the interests of the ECR community to ECFA, officially began its activities in January 2021. [...]
arXiv:2212.11238.
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High-resolution, low-latency, bunch-by-bunch feedback system for nanobeam stabilization
/ Bett, D.R. (JAI, UK ; CERN) ; Blaskovic Kraljevic, N. (JAI, UK ; Lund U., MAX-lab) ; Bromwich, T. (JAI, UK ; Edinburgh U.) ; Burrows, P.N. (JAI, UK) ; Christian, G.B. (JAI, UK ; Diamond Light Source) ; Perry, C. (JAI, UK) ; Ramjiawan, R. (JAI, UK ; CERN)
We report the design, operation and performance of a high-resolution, low-latency, bunch-by-bunch feedback system for nano-beam stabilisation. The system employs novel, ultra-low quality-factor cavity beam position monitors (BPMs), a two-stage analogue signal down-mixing system, and a digital signal processing and feedback board incorporating an FPGA. [...]
arXiv:2201.01531.-
2022-02-01 - 14 p.
- Published in : Phys. Rev. Accel. Beams 25 (2022) 022801
Fulltext: Publication - PDF; 2201.01531 - PDF;
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Precision Measurement of Trident Production in Strong Electromagnetic Fields
/ Nielsen, Christian F. (Aarhus U.) ; Holtzapple, Robert (Cal. Poly.) ; Lund, Mads M. (Aarhus U.) ; Surrow, Jeppe H. (Aarhus U.) ; Sørensen, Marc B. (Aarhus U.) ; Uggerhøj, Ulrik I. (Aarhus U.)
/NA63 Collaboration
We demonstrate experimentally that the trident process $e^-\rightarrow e^-e^+e^-$ in a strong external field, with a spatial extension comparable to the effective radiation length, is well understood theoretically. The experiment, conducted at CERN, probes values for the strong field parameter $\chi$ up to 2.4. [...]
arXiv:2211.02390.-
2023-02-14 - 5 p.
- Published in : Phys. Rev. Lett. 130 (2023) 071601
Fulltext: 2211.02390 - PDF; Publication - PDF;
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Competition between Allowed and First-Forbidden $β$ Decay: The Case of $^{208}$Hg$→^{208}$Tl
/ Carroll, R J (Surrey U.) ; Podolyák, Zs (Surrey U. ; Darmstadt, GSI) ; Berry, T (Surrey U.) ; Grawe, H (Darmstadt, GSI) ; Alexander, T (Surrey U.) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Ansari, S (Cologne U.) ; Borge, M J G (CERN) ; Brunet, M (Surrey U.) ; Creswell, J R (Liverpool U.) et al.
The $β$ decay of $^{208}$Hg into the one-proton hole, one neutron-particle $^{208}_{81}$Tl$_{127}$ nucleus was investigated at CERN-ISOLDE. Shell-model calculations describe well the level scheme deduced, validating the proton-neutron interactions used, with implications for the whole of the N>126, Z<82 quadrant of neutron-rich nuclei. [...]
2020 - 6 p.
- Published in : Phys. Rev. Lett. 125 (2020) 192501
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Application of Accelerators and Storage Rings
/ Dohlus, M (DESY) ; Rossbach, J (DESY) ; Bethge, K H W (U. Leipzig (main)) ; Meijer, J (U. Leipzig (main)) ; Amaldi, U (CERN) ; Magrin, G (Unlisted, AT) ; Lindroos, M (CERN) ; Molloy, S (Lund U., MAX-lab) ; Rees, G (Rutherford) ; Seidel, M (PSI, Villigen) et al.
It is well known from Maxwell theory that electromagnetic radiation is emitted whenever electric charges are accelerated in free space. This radiation assumes quite extraordinary properties whenever the charged particles move at ultrarelativistic speed: The radiation becomes very powerful and tightly collimated in space, and it may easily cover a rather wide spectrum ranging from the THz into the hard X-ray regime. [...]
Cham : Springer, 2020 - 135 p.
- Published in : 10.1007/978-3-030-34245-6_11
Fulltext: PDF;
In : Particle physics reference library, pp.661-795
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