13 results on '"Ghys, L."'
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2. Hyperfine anomaly in gold and magnetic moments of Iπ=11/2− gold isomers
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Barzakh, A., Atanasov, D., Andreyev, A., Al Monthery, M., Althubiti, N., Andel, B., Antalic, S., Blaum, K., Cocolios, T., Cubiss, J., Duppen, P., Goodacre, T., de Roubin, A., Demidov, Y., Farooq-Smith, G., Fedorov, D., Fedosseev, V., Fink, D., Gaffney, L., Ghys, L., Harding, R., Joss, D., Herfurth, F., Huyse, M., Imai, N., Kozlov, M., Kreim, S., Lunney, D., Lynch, K., Manea, V., Marsh, B., Palenzuela, Y., Molkanov, P., Neidherr, D., Page, R., Rosenbusch, M., Rossel, R., Rothe, S., Schweikhard, L., Seliverstov, M., Sels, S., Beveren, C., Verstraelen, E., Welker, A., Wienholtz, F., Wolf, R., and Zuber, K.
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Präzisionsexperimente - Abteilung Blaum - Abstract
ispartof: Physical Review C vol:101 issue:3 pages:034308-1-034308-9 status: published
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- 2020
3. α-decay branching ratio of 180Pt
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Cubiss, JG, Harding, RD, Andreyev, AN, Althubiti, N, Andel, B, Antalic, S, Barzakh, AE, Cocolios, TE, Goodacre, TD, Farooq-Smith, GJ, Fedorov, DV, Fedosseev, VN, Gaffney, LP, Ghys, L, Huyse, M, Lynch, KM, Marsh, BA, Martinez Palenzuela, Y, Molkanov, PL, Rossel, RE, Rothe, S, Seliverstov, MD, Sels, S, Spagnoletti, P, Van Beveren, C, Van Duppen, P, Veinhard, M, Verstraelen, E, and Zadvornaya, A
- Abstract
ispartof: Physical Review C vol:101 issue:1 pages:014314-014314 status: published
- Published
- 2020
4. Inverse odd-even staggering in nuclear charge radii and possible octupole collectivity in 217,218,219At revealed by in-source laser spectroscopy
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Barzakh, A. E., Cubiss, J. G., Andreyev, A. N., Seliverstov, M. D., Andel, B., Antalic, S., Ascher, P., Atanasov, D., Beck, D., Bieroifmmode nelse, J., Blaum, K., Borgmann, Ch., Breitenfeldt, M., Capponi, L., Cocolios, T. E., Day Goodacre, T., Derkx, X., De Witte, H., Elseviers, J., Fedorov, D. V., Fedosseev, V. N., Fritzsche, S., Gaffney, L. P., George, S., Ghys, L., Heßberger, F. P., Huyse, M., Imai, N., Kalaninová, Z., Kisler, D., Köster, U., Kowalska, M., Kreim, S., Lane, J. F. W., Liberati, V., Lunney, D., Lynch, K. M., Manea, V., Marsh, B. A., Mitsuoka, S., Molkanov, P. L., Nagame, Y., Neidherr, D., Nishio, K., Ota, S., Pauwels, D., Popescu, L., Radulov, D., Rapisarda, E., Revill, J. P., Rosenbusch, M., Rossel, R. E., Rothe, S., Sandhu, K., Schweikhard, L., Sels, S., Truesdale, V. L., Van Beveren, C., Van den Bergh, P., Van Duppen, P., Wakabayashi, Y., Wendt, K. D. A., Wienholtz, F., Whitmore, B. W., Wilson, G. L., Wolf, R. N., and Zuber, K.
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Physics::Atomic Physics ,Präzisionsexperimente - Abteilung Blaum ,Nuclear Experiment - Abstract
© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Hyperfine-structure parameters and isotope shifts for the 795-nm atomic transitions in At217,218,219 have been measured at CERN-ISOLDE, using the in-source resonance-ionization spectroscopy technique. Magnetic dipole and electric quadrupole moments, and changes in the nuclear mean-square charge radii, have been deduced. A large inverse odd-even staggering in radii, which may be associated with the presence of octupole collectivity, has been observed. Namely, the radius of the odd-odd isotope At218 has been found to be larger than the average of its even-N neighbors, At217,219. The discrepancy between the additivity-rule prediction and experimental data for the magnetic moment of At218 also supports the possible presence of octupole collectivity in the considered nuclei. ispartof: Physical Review C vol:99 issue:5 status: published
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- 2019
5. SoLid: a short baseline reactor neutrino experiment
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SoLid Collaboration, Abreu, Y., Amhis, Y., Arnold, L., Barber, G., Beaumont, W., Binet, S., Bolognino, I., Bongrand, M., Borg, J., Boursette, D., Buridon, V., Castle, B. C., Chanal, H., Clark, K., Coupe, B., Crochet, P., Cussans, D., De Roeck, A., Durand, D., Durkin, T., Fallot, M., Ghys, L., Giot, L., Graves, K., Guillon, B., Henaff, D., Hosseini, B., Jenzer, S., Kalcheva, S., Kalousis, L. N., Labare, M., Lehaut, G., Manley, S., Manzanillas, L., Mermans, J., Michiels, I., Monteil, S., Moortgat, C., Newbold, D., Pestel, V., Petridis, K., Pinera, I., Popescu, L., Roy, N., Ryckbosch, D., Ryder, N., Saunders, D., Schune, M. -H., Settimo, M., Sfar, H. Rejeb, Simard, L., Vacheret, A., Vandierendonck, G., Van Dyck, S., Van Mulders, P., Van Remortel, N., Vercaemer, S., Verstraeten, M., Viaud, B., Weber, A., Yermia, F., Physics, Commission of the European Communities, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), SoLid, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), and ANR-16-CE31-0018,SoLid,Recherche d'oscillations à très courte distance avec un détecteur au Lithium6 auprès du SCK-CEN BR2(2016)
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Sterile neutrino ,Physics - Instrumentation and Detectors ,Physics::Instrumentation and Detectors ,Nuclear engineering ,01 natural sciences ,09 Engineering ,thermal ,High Energy Physics - Experiment ,Particle identification methods ,High Energy Physics - Experiment (hep-ex) ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Neutrino detectors ,Detectors and Experimental Techniques ,physics.ins-det ,Instrumentation ,Mathematical Physics ,Physics ,02 Physical Sciences ,Detector ,Instrumentation and Detectors (physics.ins-det) ,neutrino: nuclear reactor ,Nuclear & Particles Physics ,neutrino: detector ,Neutrino detector ,mechanical engineering ,Neutrino ,Particle Physics - Experiment ,performance ,fast neutrons) ,STERILE NEUTRINO ,FOS: Physical sciences ,fabrication ,lithium: nuclide ,SEARCH ,0103 physical sciences ,Calibration ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,010306 general physics ,Neutrino oscillation ,DETECTOR ,detector: design ,hep-ex ,010308 nuclear & particles physics ,calibration ,Neutron detectors (cold ,Physics and Astronomy ,Nuclear reactor core ,High Energy Physics::Experiment ,neutrino: oscillation ,Electron neutrino - Abstract
The SoLid experiment, short for Search for Oscillations with a Lithium-6 detector, is a new generation neutrino experiment which tries to address the key challenges for high precision reactor neutrino measurements at very short distances from a reactor core and with little or no overburden. The primary goal of the SoLid experiment is to perform a precise measurement of the electron antineutrino energy spectrum and flux and to search for very short distance neutrino oscillations as a probe of eV-scale sterile neutrinos. This paper describes the SoLid detection principle, the mechanical design and the construction of the detector. It then reports on the installation and commissioning on site near the BR2 reactor, Belgium, and finally highlights its performance in terms of detector response and calibration., 39 pages, 30 figures
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- 2021
6. Charge radii and electromagnetic moments of $^{195--211}\mathrm{At}$
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Cubiss, JG, Barzakh, AE, Seliverstov, MD, Andreyev, AN, Andel, B, Antalic, S, Ascher, P, Atanasov, D, Beck, D, Bieroń, J, Blaum, K, Borgmann, C, Breitenfeldt, M, Capponi, L, Cocolios, TE, Day Goodacre, T, Derkx, X, De Witte, H, Elseviers, J, Fedorov, DV, Fedosseev, VN, Fritzsche, S, Gaffney, LP, George, S, Ghys, L, Heßberger, FP, Huyse, M, Imai, N, Kalaninová, Z, Kisler, D, Köster, U, Kowalska, M, Kreim, S, Lane, JFW, Liberati, V, Lunney, D, Lynch, KM, Manea, V, Marsh, BA, Mitsuoka, S, Molkanov, PL, Nagame, Y, Neidherr, D, Nishio, K, Ota, S, Pauwels, D, Popescu, L, Radulov, D, Rapisarda, E, Revill, JP, Rosenbusch, M, Rossel, RE, Rothe, S, Sandhu, K, Schweikhard, L, Sels, S, Truesdale, VL, Van Beveren, C, Van den Bergh, P, Wakabayashi, Y, Van Duppen, P, Wendt, KDA, Wienholtz, F, Whitmore, BW, Wilson, GL, Wolf, RN, and Zuber, K
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Nuclear Experiment - Abstract
© 2018 authors. Hyperfine-structure parameters and isotope shifts of At195-211 have been measured for the first time at CERN-ISOLDE, using the in-source resonance-ionization spectroscopy method. The hyperfine structures of isotopes were recorded using a triad of experimental techniques for monitoring the photo-ion current. The Multi-Reflection Time-of-Flight Mass Spectrometer, in connection with a high-resolution electron multiplier, was used as an ion-counting setup for isotopes that either were affected by strong isobaric contamination or possessed a long half-life; the ISOLDE Faraday cups were used for cases with high-intensity beams; and the Windmill decay station was used for short-lived, predominantly α-decaying nuclei. The electromagnetic moments and changes in the mean-square charge radii of the astatine nuclei have been extracted from the measured hyperfine-structure constants and isotope shifts. This was only made possible by dedicated state-of-the-art large-scale atomic computations of the electronic factors and the specific mass shift of atomic transitions in astatine that are needed for these extractions. By comparison with systematics, it was possible to assess the reliability of the results of these calculations and their ascribed uncertainties. A strong deviation in the ground-state mean-square charge radii of the lightest astatine isotopes, from the trend of the (spherical) lead isotopes, is interpreted as the result of an onset of deformation. This behavior bears a resemblance to the deviation observed in the isotonic polonium isotopes. Cases for shape coexistence have been identified in At197,199, for which a significant difference in the charge radii for ground (9/2-) and isomeric (1/2+) states has been observed. ispartof: Physical Review C vol:97 issue:5 status: Published online
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- 2018
7. In-source laser spectroscopy with the laser ion source and trap: first direct study of the ground-state properties of Po-217,Po-219
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Fink, D.A., Cocolios, T.E., Andreyev, A. N., Antalic, S., Barzakh, A.E., Bastin, B., Fedorov, D.V., Fedosseev, V.N., Flanagan, K.T., Ghys, L., Gottberg, A., Wendt, K. D. A., SCOAP, Japan Atomic Energy Agency, Slovak Research and Development Agency, European Commission, Belgian Science Policy Office, Research Foundation - Flanders, Federal Ministry of Education and Research (Germany), and Science and Technology Facilities Council (UK)
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Atomic and molecular physics ,Nuclear Physics - Abstract
D. A. Fink et al.; 15 págs.; 17 figs.; 3 tabs.; Open Access funded by Creative Commons Atribution Licence 3.0, A Laser Ion Source and Trap (LIST) for a thick-target, isotope-separation on-line facility has been implemented at CERN ISOLDE for the production of pure, laser-ionized, radioactive ion beams. It offers two modes of operation, either as an ion guide, which performs similarly to the standard ISOLDE resonance ionization laser ion source (RILIS), or as a more selective ion source, where surface-ionized ions from the hot ion-source cavity are repelled by an electrode, while laser ionization is done within a radiofrequency quadrupole ion guide. The first physics application of the LIST enables the suppression of francium contamination in ion beams of neutron-rich polonium isotopes at ISOLDE by more than 1000 with a reduction in laser-ionization efficiency of only 20. Resonance ionization spectroscopy is performed directly inside the LIST device, allowing the study of the hyperfine structure and isotope shift of 217Po for the first time. Nuclear decay spectroscopy of 219Po is performed for the first time, revealing its half-life, α- to-β-decay branching ratio, and α-particle energy. This experiment demonstrates the applicability of the LIST at radioactive ion-beam facilities for the production and study of pure beams of exotic isotopes. Published by the American Physical Society, This work was supported by the Bundesministerium für Bildung und Forschung (BMBF, Germany) within the Wolfgang- Gentner programme as well as through the consecutive project fundings of 06Mz9181I, 06Mz7177D, and 05P12UMCIA, by FWO-Vlaanderen (Belgium), by GOA/2010/010 (BOF-KULeuven), by the IUAP-Belgian State Belgian Science Policy (BRIX network P7/12), by the U.K. Science and Technology Facilities Council (STFC), by the European Union within FP7 (ENSAR No. 262010), by the Slovak Research and Development Agency (Contract No. APVV-0105-10), by the Slovak grant agency VEGA, and the Reimei Foundation of JAEA (Contract No. 1/0576/13). T. E. C. was supported by STFC Ernest Rutherford Grant No. ST/J004189/1.
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- 2015
8. In-source laser spectroscopy of mercury isotopes
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Gaffney, Liam Paul, Day Goodacre, Thomas, Andreyev, Andrei, Seliverstov, Maxim, Althubiti, N, Andel, B, Antalic, S, Atanasov, D, Barzakh, A E, Blaum, K, Billowes, J, Cocolios, T E, Cubiss, J, Farooq-Smith, G, Fedorov, D V, Fedosseev, V N, Ferrer, R, Flanagan, K T, Ghys, L, Granados, C, Gottberg, A, Herfurth, F, Huyse, M, Jenkins, D G, Kisler, D, Kreim, S, Kron, T, Kudryavtsev, Yu, Lunney, D, Lynch, K M, Marsh, B A, Manea, V, Mendonca, T M, Molkanov, P L, Neidherr, D, Raabe, R, Ramos, J P, Raeder, S, Rapisarda, E, Rosenbusch, M, Rossel, R E, Rothe, S, Schweikhard, L, Sels, S, Stora, T, Tsekhanovich, I, Van Beveren, C, Van Duppen, P, Veinhard, M, Wadsworth, R, Welker, A, Wienholtz, F, Wendt, K, Wilson, G L, Witkins, S, Wolf, R, and Zuber, K
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Detectors and Experimental Techniques - Published
- 2014
9. Symptoomcontrole in de palliatieve zorg bij bejaarden
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null DEVULDER J, null GHYS L, and null DE LAAT M
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General Medicine - Published
- 1999
10. Shape coexistence in the lightest Tl isotopes studied by laser spectroscopy
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Andreyev, A, Liberati, V, Lane, J, Sandhu, K, Chapman, R, Darby, I, Diriken, J, De Witte, H, Elseviers, J, Huyse, M, Ghys, L, Rapisarda, E, Radulov, D, Seliverstov, M, Van den Bergh, P, Van Duppen, P, Flanagan, KT, Popescu, L, Pauwels, P, Antalic, A, Kalaninova, Z, Barzakh, A, Fedorov, D, Köster, U, Page, RD, Venhart, M, Veselský, M, Cocolios, TE, Fedosseev, V, March, B, Beck, D, Herfurth, F, Blaum, K, Borgmann, C, Kreim, S, Kowalska, M, Lunney, D, Naimi, S, Rosenbusch, M, Schweikhard, L, Wolf, R, Schwarz, S, Zuber, K, and Herlert, A
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Detectors and Experimental Techniques - Published
- 2011
11. Detailed $\beta$DF studies of $^{202}$Fr and a search for$\beta$DF of $^{204}$Fr
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Andreyev, A, Liberati, V, Lane, J, Sandhu, K, Chapman, R, Darby, IG, Diriken, J, De Witte, H, Elseviers, J, Huyse, M, Ghys, L, Rapisarda, E, Radulov, D, Van den Bergh, P, Van Duppen, P, Flanagan, KT, Popescu, L, Pauwels, D, Antalic, S, Kalaninova, Z, Nishio, K, Köster, U, Page, RD, Tsekhanovich, I, Vermote, S, Wagemans, C, Venhart, M, Veselský, M, Möller, P, Sierk, AJ, Itchikawa, T, and Cocolios, TE
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Detectors and Experimental Techniques - Published
- 2011
12. Palliative care: knowledge and attitudes of general practitioners: the results of a questionnaire after training
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Jacques Devulder, Georges Rolly, K. Dumoulin, De Laat M, and Ghys L
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Health Knowledge, Attitudes, Practice ,Palliative care ,MEDLINE ,Pain ,Health knowledge ,Nursing ,Neoplasms ,Surveys and Questionnaires ,Medicine ,Humans ,Symptom control ,Practice Patterns, Physicians' ,Response rate (survey) ,Morphine ,business.industry ,Palliative Care ,Hospices ,Nociceptors ,General Medicine ,Analgesics, Opioid ,Asthenia ,Etiology ,Clinical Competence ,Clinical competence ,Nervous System Diseases ,Opioid analgesics ,business ,Family Practice - Abstract
A questionnaire about attitudes and knowledge in palliative care treatment was sent to 185 general practitioners who participated such a seminar some months before. The response rate was low (69/185). Pain is the most frequent symptom. All the responding doctors assume they can treat pain adequately. However, none of them can answer the knowledge questions correctly. They appreciate the palliative care organizations for the help in symptom control or for difficulties in psychological symptoms. A multifactorial etiology might explain the difficult control of asthenia. This survey agrees with other studies that knowledge in symptom control and palliative care should be improved.
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- 1997
13. Laser spectroscopy of neutron-rich 207,208Hg isotopes: Illuminating the kink and odd-even staggering in charge radii across the N = 126 shell closure
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Afanasjev, A. V., Barzakh, A. E., Marsh, B. A., Sels, S., Ring, P., Nakada, H., Andreyev, A. N., Duppen, P., Althubiti, N. A., Andel, B., Atanasov, D., Billowes, J., Blaum, K., Cocolios, T. E., Cubiss, J. G., Farooq-Smith, G. J., Fedorov, D. V., Fedosseev, V. N., Flanagan, K. T., Ganey, L. P., Ghys, L., Huyse, M., Kreim, S., Lunney, D., Kara Lynch, Manea, V., Martinez Palenzuela, Y., Molkanov, P. L., Rosenbusch, M., Rossel, R. E., Rothe, S., Schweikhard, L., Seliverstov, M. D., Spagnoletti, P., Beveren, C., Veinhard, M., Verstraelen, E., Welker, A., Wendt, K., Wienholtz, F., Wolf, R. N., Zadvornaya, A., and Zuber, K.
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