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145 results on '"Grinyer, G.F."'

1. Energy loss profile measurements using the ACTAR TPC demonstrator active target

Author

Camaiani, A., Barlini, S., Stefanini, A.A., Casini, G., Alvarez-Pol, H., Arokiaraj, A., Baldesi, L., Bolzonella, R., Cardella, G., Ciampi, C., Cicerchia, M., Cinausero, M., Collazuol, G., De Filippo, E., Domenichetti, L., Fabris, D., Fernández-Domínguez, B., Fioretto, E., Frosin, C., Galtarossa, F., Giovinazzo, J., Gnoffo, B., Gramegna, F., Grinyer, G.F., Lombardo, I., Marchi, T., Martorana, N.S., Mentana, A., Ottanelli, P., Pagano, E.V., Pancin, J., Pellegriti, M.G., Piantelli, S., Pirrone, S., Poleshchuk, O., Raabe, R., Roger, T., Russo, M., Russotto, P., Scomparin, L., Swartz, J.A., Valdré, S., Verde, G., Vigilante, M., and Yang, J.

Published
2023
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2. Proton 3D tracking and emission time from a short-lived isomer with ACTAR TPC

Author

Giovinazzo, J., Roger, T., Blank, B., Rudolph, D., Alvarez-Pol, H., Arokiaraj, A., Ascher, P., Camaaño-Fresco, M., Caceres, L., Cox, D.M., Fernández-Domínguez, B., Lois-Fuentes, J., Gerbaux, M., Grévy, S., Grinyer, G.F., Kamalou, O., Mauss, B., Mentana, A., Ortega Moral, A., Pancin, J., Pibernat, J., Piot, J., Sorlin, O., Stodel, C., Thomas, J.-C., and Versteegen, M.

Published
2022
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4. Cross-shell states in 15C: A test for p-sd interactions

Author

Lois-Fuentes, J., primary, Fernández-Domínguez, B., additional, Pereira-López, X., additional, Delaunay, F., additional, Catford, W.N., additional, Matta, A., additional, Orr, N.A., additional, Duguet, T., additional, Otsuka, T., additional, Somà, V., additional, Sorlin, O., additional, Suzuki, T., additional, Achouri, N.L., additional, Assié, M., additional, Bailey, S., additional, Bastin, B., additional, Blumenfeld, Y., additional, Borcea, R., additional, Caamaño, M., additional, Caceres, L., additional, Clément, E., additional, Corsi, A., additional, Curtis, N., additional, Deshayes, Q., additional, Farget, F., additional, Fisichella, M., additional, de France, G., additional, Franchoo, S., additional, Freer, M., additional, Gibelin, J., additional, Gillibert, A., additional, Grinyer, G.F., additional, Hammache, F., additional, Kamalou, O., additional, Knapton, A., additional, Kokalova, Tz., additional, Lapoux, V., additional, Le Crom, B., additional, Leblond, S., additional, Marqués, F.M., additional, Morfouace, P., additional, Pancin, J., additional, Perrot, L., additional, Piot, J., additional, Pollacco, E., additional, Ramos, D., additional, Regueira-Castro, D., additional, Rodríguez-Tajes, C., additional, Roger, T., additional, Rotaru, F., additional, Sénoville, M., additional, de Séréville, N., additional, Smith, R., additional, Stanoiu, M., additional, Stefan, I., additional, Stodel, C., additional, Suzuki, D., additional, Thomas, J.C., additional, Timofeyuk, N., additional, Vandebrouck, M., additional, Walshe, J., additional, and Wheldon, C., additional

Published
2023
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6. Demonstrator Detection System for the Active Target and Time Projection Chamber (ACTAR TPC) project

Author

Roger, T., Pancin, J., Grinyer, G.F., Mauss, B., Laffoley, A.T., Rosier, P., Alvarez-Pol, H., Babo, M., Blank, B., Caamaño, M., Ceruti, S., Daemen, J., Damoy, S., Duclos, B., Fernández-Domínguez, B., Flavigny, F., Giovinazzo, J., Goigoux, T., Henares, J.L., Konczykowski, P., Marchi, T., Lebertre, G., Lecesne, N., Legeard, L., Maugeais, C., Minier, G., Osmond, B., Pedroza, J.L., Pibernat, J., Poleshchuk, O., Pollacco, E.C., Raabe, R., Raine, B., Renzi, F., Saillant, F., Sénécal, P., Sizun, P., Suzuki, D., Swartz, J.A., Wouters, C., Wittwer, G., and Yang, J.C.

Published
2018
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8. GET: A generic electronics system for TPCs and nuclear physics instrumentation

Author

Pollacco, E.C., Grinyer, G.F., Abu-Nimeh, F., Ahn, T., Anvar, S., Arokiaraj, A., Ayyad, Y., Baba, H., Babo, M., Baron, P., Bazin, D., Beceiro-Novo, S., Belkhiria, C., Blaizot, M., Blank, B., Bradt, J., Cardella, G., Carpenter, L., Ceruti, S., De Filippo, E., Delagnes, E., De Luca, S., De Witte, H., Druillole, F., Duclos, B., Favela, F., Fritsch, A., Giovinazzo, J., Gueye, C., Isobe, T., Hellmuth, P., Huss, C., Lachacinski, B., Laffoley, A.T., Lebertre, G., Legeard, L., Lynch, W.G., Marchi, T., Martina, L., Maugeais, C., Mittig, W., Nalpas, L., Pagano, E.V., Pancin, J., Poleshchuk, O., Pedroza, J.L., Pibernat, J., Primault, S., Raabe, R., Raine, B., Rebii, A., Renaud, M., Roger, T., Roussel-Chomaz, P., Russotto, P., Saccà, G., Saillant, F., Sizun, P., Suzuki, D., Swartz, J.A., Tizon, A., Trifiró, A., Usher, N., Wittwer, G., and Yang, J.C.

Published
2018
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9. First inverse-kinematics fission measurements in a gaseous active target

Author

Rodríguez-Tajes, C., Farget, F., Acosta, L., Alvarez-Pol, H., Babo, M., Boulay, F., Caamaño, M., Damoy, S., Fernández-Domínguez, B., Galaviz, D., Grinyer, G.F., Grinyer, J., Harakeh, M.N., Konczykowski, P., Martel, I., Pancin, J., Randisi, G., Renzi, F., Roger, T., Sánchez-Benítez, A.M., Teubig, P., and Vandebrouck, M.

Published
2017
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12. Experimental investigation of ground-state properties of H with transfer reactions

Author

Caamaño, M., Roger, T., Moro, A.M., Grinyer, G.F., Pancin, J., Bagchi, S., Sambi, S., Gibelin, J., Fernández–Domínguez, B., Itagaki, N., Benlliure, J., Cortina–Gil, D., Farget, F., Jacquot, B., Pérez–Loureiro, D., Pietras, B., Raabe, R., Ramos, D., Rodríguez Tajes, C., Savajols, H., and Vandebrouck, M.

Abstract

The properties of nuclei with extreme neutron–to–proton ratios, far from those naturally occurring on Earth, are key to understand nuclear forces and how nucleons hold together to form nuclei. $^{7}$H, with six neutrons and a single proton, is the nuclear system with the most unbalanced neutron–to–proton ratio known so far. However, its sheer existence and properties are still a challenge for experimental efforts and theoretical models. Here we report experimental evidences on the formation of $^{7}$H as a resonance, detected with independent observables, and the first measurement of the structure of its ground state. The resonance is found at ∼0.7 MeV above the $^{3}$H+4n mass, with a narrow width of ∼0.2 MeV and a 1/2+ spin and parity. These data are consistent with a $^{7}$H as a $^{3}$H core surrounded by an extended four-neutron halo, with a unique four-neutron decay and a relatively long half-life thanks to neutron pairing; a prime example of new phenomena occurring in what would be the most pure-neutron nuclear matter we can access in the laboratory.

Published
2023

13. First Report of a Doublet 2209-keV State in \(^{100}\)Zr

Author

Kalaydjieva, D., primary, Garrett, P.E., additional, Bidaman, H., additional, Rocchini, M., additional, Zielińska, M., additional, Korten, W., additional, Bildstein, V., additional, Pannu, S., additional, Ahmed, Z., additional, Andreoiu, C., additional, Annen, D., additional, Ball, G.C., additional, Benzoni, G., additional, Bhattacharjee, S.S., additional, Buck, S., additional, Coleman, R.J., additional, Devinyak, S., additional, Dillmann, I., additional, Caballero-Folch, R., additional, Garcia, F.H., additional, Garnsworthy, A.B., additional, Greaves, B., additional, Griffin, C.J., additional, Grinyer, G.F., additional, Gyabeng Fuakye, E., additional, Hackman, G., additional, Hymers, D., additional, Kanungo, R., additional, Kapoor, K., additional, Kasanda, E., additional, Marchini, N., additional, Mashtakov, K.M., additional, Nannini, A., additional, Natzke, C., additional, Olaizola, B., additional, Ortner, K., additional, Petrache, C.M., additional, Polettini, M., additional, Radich, A.J., additional, Saei, N., additional, Satrazani, M., additional, Siciliano, M., additional, Singh, M., additional, Spagnoletti, P., additional, Svensson, C.E., additional, Torres, D.A., additional, Umashankar, R., additional, Vedia, V., additional, and Zidar, T., additional

Published
2023
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15. Cross-shell states in $^{15}$C: a test for p-sd interactions

Author

Lois-Fuentes, J., Fernandez-Dominguez, B., Pereira-Lopez, X., Delaunay, F., Catford, W.N., Matta, A., Orr, N.A., Duguet, T., Otsuka, T., Soma, V., Sorlin, O., Suzuki, T., Achouri, N.L., Assie, M., Bailey, S., Bastin, B., Blumenfeld, Y., Borcea, R., Caamano, M., Caceres, L., Clement, E., Corsi, A., Curtis, N., Deshayes, Q., Farget, F., Fisichella, M., de France, G., Franchoo, S., Freer, M., Gibelin, J., Gillibert, A., Grinyer, G.F., Hammache, F., Kamalou, O., Knapton, A., Kokalova, Tz., Lapoux, V., Le Crom, B., Leblond, S., Marques, F.M., Morfouace, P., Pancin, J., Perrot, L., Piot, J., Pollacco, E., Ramos, D., Regueira-Castro, D., Rodriguez-Tajes, C., Roger, T., Rotaru, F., Senoville, M., de Sereville, N., Smith, R., Stanoiu, M., Stefan, I., Stodel, C., Suzuki, D., Thomas, J.C., Timofeyuk, N., Vandebrouck, M., Walshe, J., Wheldon, C., 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear Theory (nucl-th), [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Nuclear Theory, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

International audience; The low-lying structure of $^{15}$C has been investigated via the neutron-removal $^{16}$C$(d,t)$ reaction. Along with bound neutron sd-shell hole states, unbound p-shell hole states have been firmly confirmed. The excitation energies and the deduced spectroscopic factors of the cross-shell states are an important measure of the $[(p)^{-1}(sd)^{2}]$ neutron configurations in $^{15}$C. Our results show a very good agreement with shell-model calculations using the SFO-tls interaction for $^{15}$C. However, a modification of the $p$-$sd$ and $sd$-$sd$ monopole terms was applied in order to reproduce the $N=9$ isotone $^{17}$O. In addition, the excitation energies and spectroscopic factors have been compared to the first calculations of $^{15}$C with the $ab~ initio$ self-consistent Green's function method employing the NNLO$_{sat}$ interaction. The results show the sensitivity to the size of the $N=8$ shell gap and highlight the need of going beyond the current truncation scheme in the theory.

Published
2023
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17. Mirror symmetry at mass = 54: 4 Effective Charges Near Doubly Magic Ni

Author

Rudolph, D., Blank, B., Giovinazzo, J., Roger, T., Alvarez-Pol, H., Arokia Raj, A., Ascher, P., Caamaño-Fresco, M., Caceres, L., Cox, D.M., Fernández-Domínguez, B., Lois-Fuentes, J., Gerbaux, M., Grévy, S., Grinyer, G.F., Kamalou, O., Mauss, B., Mentana, A., Pancin, J., Pibernat, J., Piot, J., Sorlin, O., Stodel, C., Thomas, J.C., and Versteegen, M.

Abstract

Proton-emission branches of the 10+ isomer in the Tz=−1 nucleus $^{54}$Ni have been imaged with the active target and time projection chamber (ACTAR TPC) in an experiment conducted at the Grand Accélérateur National d'Ions Lourds (GANIL). The completed decay scheme allows derivation of the reduced transition strengths, B(E2;10+→8+) and B(E4;10+→6+), for the two competing γ-ray transitions. By means of a comparison with their well-known ‘mirror transitions’ in Tz=+1 $^{54}$Fe, and aided by a variety of shell-model calculations in the fp model space, effective charges for E4 transitions near N=Z $^{56}$Ni can be deduced: επ≈1.40 and εν≈0.30. Mirror-energy differences are explored with various shell-model interactions and isospin-symmetry breaking terms.

Published
2022

18. Mirror symmetry at mass A = 54: E4 effective charges near doubly magic 56Ni

Author

Rudolph, D., primary, Blank, B., additional, Giovinazzo, J., additional, Roger, T., additional, Alvarez-Pol, H., additional, Arokia Raj, A., additional, Ascher, P., additional, Caamaño-Fresco, M., additional, Caceres, L., additional, Cox, D.M., additional, Fernández-Domínguez, B., additional, Lois-Fuentes, J., additional, Gerbaux, M., additional, Grévy, S., additional, Grinyer, G.F., additional, Kamalou, O., additional, Mauss, B., additional, Mentana, A., additional, Pancin, J., additional, Pibernat, J., additional, Piot, J., additional, Sorlin, O., additional, Stodel, C., additional, Thomas, J.-C., additional, and Versteegen, M., additional

Published
2022
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20. Improved measurement of the <math><mrow><msub><mn>0</mn><mn>2</mn></msub><msup><mrow/><mo>+</mo></msup><mo>→</mo><msub><mn>0</mn><mn>1</mn></msub><msup><mrow/><mo>+</mo></msup><mspace width='0.28em'/><mi>E</mi><mn>0</mn></mrow></math> transition strength for <math><mmultiscripts><mi>Se</mi><mprescripts/><none/><mn>72</mn></mmultiscripts></math> using the SPICE spectrometer

Author

Smallcombe, J., Garnsworthy, A.B., Korten, W., Singh, P., Ali, F.A., Andreoiu, C., Ansari, S., Ball, G.C., Barton, C.J., Bhattacharjee, S.S., Bowry, M., Caballero-Folch, R., Chester, A., Gillespie, S.A., Grinyer, G.F., Hackman, G., Jones, C., Melon, B., Moukaddam, M., Nannini, A., Ruotsalainen, P., Starosta, K., Svensson, C.E., Wadsworth, R., Williams, J., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; The selenium isotopes lie at the heart of a tumultuous region of the nuclear chart where shape coexistence effects grapple with neutron-proton pairing correlations, triaxiality, and the impending proton drip line. In this work, a study of Se72 by internal conversion electron and γ-ray spectroscopy was undertaken with the SPICE and TIGRESS arrays. New measurements of the branching ratio and lifetime of the 02+ state were performed, yielding a determination of ρ2(E0;02+→01+)=29(3) milliunits. Two-state mixing calculations were performed that highlighted the importance of interpretation of such E0 strength values in the context of shape coexistence.

Published
2022
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23. Experimental approach to measure thick target neutron yields induced by heavy ions for shielding

Author

Trinh N.D., Fadil M., Lewitowicz M., Brouillard C., Clerc T., Damoy S., Desmezières V., Dessay E., Dupuis M., Grinyer G.F., Grinyer J., Jacquot B., Ledoux X., Madeline A., Menard N., Michel M., Morel V., Porée F., Rannou B., and Savalle A.

Subjects
Physics, QC1-999
Abstract

Double differential (angular and energy) neutron distributions were measured using an activation foil technique. Reactions were induced by impinging two low-energy heavy-ion beams accelerated with the GANIL CSS1 cyclotron: (36S (12 MeV/u) and 208Pb (6.25 MeV/u)) onto thick natCu targets. Results have been compared to Monte-Carlo calculations from two codes (PHITS and FLUKA) for the purpose of benchmarking radiation protection and shielding requirements. This comparison suggests a disagreement between calculations and experiment, particularly for high-energy neutrons.

Published
2017
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24. Performance tests of a LaBr 3 :Ce detector coupled to a SiPM array and the GET electronics for γ -ray spectroscopy in a strong magnetic field

Author

Poleshchuk, O., Swartz, J.A., Arokiaraj, A., Ceruti, S., De Witte, H., Grinyer, G.F., Laffoley, A.T., Marchi, T., Raabe, R., Renaud, M., Yang, J., Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Scintillation detector, Magnetic field, LaBr3:Ce, SiPM, LaBr 3 :Ce, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], GET electronics, SpecMAT
Abstract

International audience; Measurements have been performed with scintillation crystals of LaBr 3 :Ce coupled to an array of Silicon Photomultipliers (SiPMs) in a 3 T magnetic field. The SiPMs were read out by digital data acquisition systems, including the GET electronics system. Inside of the B-field, energy resolution values of 3.82% FWHM at 661.7 keV are reported for a 1.5 $\protect \relax \special {t4ht=′}\protect \relax \special {t4ht=′}$ cubic LaBr 3 :Ce crystal coupled to a 6 × 6 array of 6 × 6 mm 2 SiPMs. No measurable degradation in energy resolution due to the presence of the strong magnetic field was observed.

Published
2021
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25. Low-lying single-particle structure of 17C and the N = 14 sub-shell closure

Author

Pereira-López, X., Fernández-Domínguez, B., Delaunay, F., Achouri, N.L., Orr, N.A., Catford, W.N., Assié, M., Bailey, S., Bastin, B., Blumenfeld, Y., Borcea, R., Caamaño, M., Caceres, L., Clément, E., Corsi, A., Curtis, N., Deshayes, Q., Farget, F., Fisichella, M., de France, G., Franchoo, S., Freer, M., Gibelin, J., Gillibert, A., Grinyer, G.F., Hammache, F., Kamalou, O., Knapton, A., Kokalova, T., Lapoux, V., Lay, J.A., Le Crom, B., Leblond, S., Lois-Fuentes, J., Marqués, F.M., Matta, A., Morfouace, P., Moro, A.M., Otsuka, T., Pancin, J., Perrot, L., Piot, J., Pollacco, E., Ramos, D., Rodríguez-Tajes, C., Roger, T., Rotaru, F., Sénoville, M., de Séréville, N., Smith, R., Sorlin, O., Stanoiu, M., Stefan, I., Stodel, C., Suzuki, D., Suzuki, T., Thomas, J.C., Timofeyuk, N., Vandebrouck, M., Walshe, J., and Wheldon, C.

Published
2020
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26. Low-lying single-particle structure of C and the = 14 Sub-shell Closure

Author

Pereira-López, X., Fernández-Domínguez, B., Delaunay, F., Achouri, N.L., Orr, N.A., Catford, W.N., Assié, M., Bailey, S., Bastin, B., Blumenfeld, Y., Borcea, R., Caamaño, M., Caceres, L., Clément, E., Corsi, A., Curtis, N., Deshayes, Q., Farget, F., Fisichella, M., de France, G., Franchoo, S., Freer, M., Gibelin, J., Gillibert, A., Grinyer, G.F., Hammache, F., Kamalou, O., Knapton, A., Kokalova, T., Lapoux, V., Lay, J.A., Le Crom, B., Leblond, S., Lois-Fuentes, J., Marqués, F.M., Matta, A., Morfouace, P., Moro, A.M., Otsuka, T., Pancin, J., Perrot, L., Piot, J., Pollacco, E., Ramos, D., Rodríguez-Tajes, C., Roger, T., Rotaru, F., Sénoville, M., de Séréville, N., Smith, R., Sorlin, O., Stanoiu, M., Stefan, I., Stodel, C., Suzuki, D., Suzuki, T., Thomas, J.C., Timofeyuk, N., Vandebrouck, M., Walshe, J., and Wheldon, C.

Abstract

The first investigation of the single-particle structure of the bound states of $^{17}$C, via the d(16C,p) transfer reaction, has been undertaken. The measured angular distributions confirm the spin-parity assignments of 1/2+ and 5/2+ for the excited states located at 217 and 335 keV, respectively. The spectroscopic factors deduced for these states exhibit a marked single-particle character, in agreement with shell model and particle-core model calculations, and combined with their near degeneracy in energy provide clear evidence for the absence of the N=14 sub-shell closure. The very small spectroscopic factor found for the 3/2+ ground state is consistent with theoretical predictions and indicates that the ν1d3/2 strength is carried by unbound states. With a dominant ℓ=0 valence neutron configuration and a very low separation energy, the 1/2+ excited state is a one-neutron halo candidate.

Published
2020

27. The TRIUMF nuclear structure program and TIGRESS

Author

Garrett, P.E., Andreyev, A., Austin, R.A.E., Ball, G.C., Bandyopadhyay, D., Becker, J.A., Boston, A.J., Boston, H.C., Chakrawarthy, R.S., Churchman, R., Cline, D., Cooper, R.J., Cross, D., Dashdorj, D., Demand, G.A., Dimmock, M.R., Drake, T., Finlay, P., Gagnon, K., Gallant, A.T., Green, K.L., Grint, A.N., Grinyer, G.F., Hackman, G., Harkness, L.J., Hayes, A.B., Kanungo, R., Kulp, W.D., Leach, K.G., Lee, G., Leslie, J.R., Maharaj, R., Martin, J.-P., Mattoon, C., Mills, W.J., Morton, A.C., Nelson, L., Newman, O., Nolan, P.J., Padilla-Rodal, E., Pearson, C.J., Phillips, A.A., Porter-Peden, M., Ressler, J.J., Ruiz, C., Sarazin, F., Schumaker, M.A., Scraggs, D.P., Strange, M.D., Subramanian, M., Svensson, C.E., Waddington, J.C., Wan, J., Whitbeck, A., Williams, S.J., Wood, J.L., Wong, J.C., Wu, C.Y., and Zganjar, E.F.

Published
2007
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28. Pile-up corrections for high-precision superallowed [formula omitted] decay half-life measurements via [formula omitted]-ray photopeak counting

Author

Grinyer, G.F., Svensson, C.E., Andreoiu, C., Andreyev, A.N., Austin, R.A.E., Ball, G.C., Bandyopadhyay, D., Chakrawarthy, R.S., Finlay, P., Garrett, P.E., Hackman, G., Hyland, B., Kulp, W.D., Leach, K.G., Leslie, J.R., Morton, A.C., Pearson, C.J., Phillips, A.A., Sarazin, F., Schumaker, M.A., Smith, M.B., Valiente-Dobón, J.J., Waddington, J.C., Williams, S.J., Wong, J., Wood, J.L., and Zganjar, E.F.

Published
2007
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29. Optimization of Compton-suppression and summing schemes for the TIGRESS HPGe detector array

Author

Schumaker, M.A., Svensson, C.E., Andreoiu, C., Andreyev, A., Austin, R.A.E., Ball, G.C., Bandyopadhyay, D., Boston, A.J., Chakrawarthy, R.S., Churchman, R., Drake, T.E., Finlay, P., Garrett, P.E., Grinyer, G.F., Hackman, G., Hyland, B., Jones, B., Maharaj, R., Morton, A.C., Pearson, C.J., Phillips, A.A., Sarazin, F., Scraggs, H.C., Smith, M.B., Valiente-Dobón, J.J., Waddington, J.C., and Watters, L.M.

Published
2007
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30. Measured and simulated performance of Compton-suppressed TIGRESS HPGe clover detectors

Author

Schumaker, M.A., Hackman, G., Pearson, C.J., Svensson, C.E., Andreoiu, C., Andreyev, A., Austin, R.A.E., Ball, G.C., Bandyopadhyay, D., Boston, A.J., Chakrawarthy, R.S., Churchman, R., Drake, T.E., Finlay, P., Garrett, P.E., Grinyer, G.F., Hyland, B., Jones, B., Maharaj, R., Morton, A.C., Phillips, A.A., Sarazin, F., Scraggs, H.C., Smith, M.B., Valiente-Dobón, J.J., Waddington, J.C., and Watters, L.M.

Published
2007
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32. Multiple Shape Coexistence in 110,112Cd and Beyond Mean Field Calculations

Author

Garrett, P.E., primary, Rodríguez, T.R., additional, Varela, A. Diaz, additional, Green, K.L., additional, Bangay, J., additional, Finlay, A., additional, Austin, R.A.E., additional, Ball, G.C., additional, Bandyopadhyay, D.S., additional, Bildstein, V., additional, Colosimo, S., additional, Cross, D.S., additional, Demand, G.A., additional, Finlay, P., additional, Garnsworthy, A.B., additional, Grinyer, G.F., additional, Hackman, G., additional, Jigmeddorj, B., additional, Jolie, J., additional, Kulp, W.D., additional, Leach, K.G., additional, Morten, A.C., additional, Orce, J.N., additional, Person, C.J., additional, Phillips, A.A., additional, Radich, A.J., additional, Rand, E.T., additional, Schumaker, M.A., additional, Svensson, C.E., additional, Sumithrarachchi, C., additional, Triambak, S., additional, Warr, N., additional, Wong, J., additional, Wood, J.L., additional, and Yates, S.W., additional

Published
2020
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33. TIGRESS highly-segmented high-purity germanium clover detector

Author

Scraggs, H.C., Pearson, C.J., Hackman, G., Smith, M.B., Austin, R.A.E., Ball, G.C., Boston, A.J., Bricault, P., Chakrawarthy, R.S., Churchman, R., Cowan, N., Cronkhite, G., Cunningham, E.S., Drake, T.E., Finlay, P., Garrett, P.E., Grinyer, G.F., Hyland, B., Jones, B., Leslie, J.R., Martin, J.-P., Morris, D., Morton, A.C., Phillips, A.A., Sarazin, F., Schumaker, M.A., Svensson, C.E., Valiente-Dobón, J.J., Waddington, J.C., Watters, L.M., and Zimmerman, L.

Published
2005
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34. Position sensitivity of the TIGRESS 32-fold segmented HPGe clover detector

Author

Svensson, C.E., Hackman, G., Pearson, C.J., Schumaker, M.A., Scraggs, H.C., Smith, M.B., Andreoiu, C., Andreyev, A., Austin, R.A.E., Ball, G.C., Boston, A.J., Chakrawarthy, R.S., Churchman, R., Cowan, N., Drake, T.E., Finlay, P., Garrett, P.E., Grinyer, G.F., Hyland, B., Jones, B., Martin, J.P., Morton, A.C., Phillips, A.A., Roy, R., Sarazin, F., Starinsky, N., Valiente-Dobón, J.J., Waddington, J.C., and Watters, L.M.

Published
2005
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35. Studies of high- K isomers at TRIUMF-ISAC

Author

Smith, M.B., Walker, P.M., Chakrawarthy, R.S., Austin, R.A.E., Ball, G.C., Carroll, J.J., Cunningham, E., Finlay, P., Garrett, P.E., Grinyer, G.F., Hackman, G., Hyland, B., Koopmans, K., Kulp, W.D., Leslie, J.R., Phillips, A.A., Propri, R., Regan, P.H., Sarazin, F., Schumaker, M.A., Scraggs, H.C., Shizuma, T., Svensson, C.E., von Schwarzenberg, J., Waddington, J.C., Ward, D., Wood, J.L., Washbrook, B., and Zganjar, E.F.

Published
2004
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37. Double differential neutron spectra generated by the interaction of a 12 MeV/nucleon $^{36}$S beam on a thick $^{nat}$Cu target

Author

Trinh, N.D., Fadil, M., Lewitowicz, M., Ledoux, X., Laurent, B., Thomas, J.-C., Clerc, T., Desmezières, V., Dupuis, M., MADELINE, A., Dessay, E., Grinyer, G.F., Grinyer, J., Menard, N., Porée, F., Achouri, L., Delaunay, F., Parlog, M., Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université de Caen Normandie (UNICAEN), Normandie Université (NU), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de physique corpusculaire de Caen (LPCC), 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), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Heavy-ion induced reaction, Time-of-flight, Nuclear Theory, Activation, Monte-Carlo simulation, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, Unfolding method, Thick target neutron yield
Abstract

International audience; Double differential neutron spectra (energy, angle) originating from a thick nat Cu target bombarded by a 12 MeV/nucleon 36 S 16+ beam were measured by the activation method and the Time-of-flight technique at the Grand Accélérateur National d’Ions Lourds (GANIL). A neutron spectrum unfolding algorithm combining the SAND-II iterative method and Monte-Carlo techniques was developed for the analysis of the activation results that cover a wide range of neutron energies. It was implemented into a graphical user interface program, called GanUnfold. The experimental neutron spectra are compared to Monte-Carlo simulations performed using the PHITS and FLUKA codes.

Published
2018
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38. Commissioning of the ACtive TARget and Time Projection Chamber (ACTAR TPC)

Author

Mauss, B., primary, Morfouace, P., additional, Roger, T., additional, Pancin, J., additional, Grinyer, G.F., additional, Giovinazzo, J., additional, Alcindor, V., additional, Álvarez-Pol, H., additional, Arokiaraj, A., additional, Babo, M., additional, Bastin, B., additional, Borcea, C., additional, Caamaño, M., additional, Ceruti, S., additional, Fernández-Domínguez, B., additional, Foulon-Moret, E., additional, Gangnant, P., additional, Giraud, S., additional, Laffoley, A., additional, Mantovani, G., additional, Marchi, T., additional, Monteagudo, B., additional, Pibernat, J., additional, Poleshchuk, O., additional, Raabe, R., additional, Refsgaard, J., additional, Revel, A., additional, Saillant, F., additional, Stanoiu, M., additional, Wittwer, G., additional, and Yang, J., additional

Published
2019
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40. High precision measurement of the $^{19}$Ne $\beta$-decay half-life using real-time digital acquisition

Author

Fontbonne, C., Ujić, P., de Oliveira Santos, F., Fléchard, X., Rotaru, F., Achouri, N.L., Girard Alcindor, V., Bastin, B., Boulay, F., Briand, J.B., Sánchez-Benítez, A.M., Bouzomita, H., Borcea, C., Borcea, R., Blank, B., Carniol, B., Čeliković, I., Delahaye, P., Delaunay, F., Etasse, D., Fremont, G., de France, G., Fontbonne, J.M., Grinyer, G.F., Harang, J., Hommet, J., Jevremović, A., Lewitowicz, M., Martel, I., Mrazek, J., Parlog, M., Poincheval, J., Ramos, D., Spitaels, C., Stanoiu, M., Thomas, J.C., Toprek, D., 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de physique corpusculaire de Caen ( LPCC ), Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -Ecole Nationale Supérieure d'Ingénieurs de Caen ( ENSICAEN ), Normandie Université ( NU ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Grand Accélérateur National d'Ions Lourds ( GANIL ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Centre d'Etudes Nucléaires de Bordeaux Gradignan ( CENBG ), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
12.15.Hh, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], 24.80.+y, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 12.60.-i, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 23.40.-s
Abstract

International audience; The half-life of Ne19 was measured using a real-time digital multiparametric acquisition system, providing an accurate time stamp and relevant information on the detector signals for each decay event. An exhaustive offline analysis of the data gave unique access to experimental effects potentially biasing the measurement. After establishing the influence factors impacting the measurement such as after-pulses, pile-up, gain, and baseline fluctuations, their effects were accurately estimated and the event selection optimized. The resulting half-life, 17.2569±0.0019(stat)±0.0009(syst) s, is the most precise up to now for Ne19. It is found to be in agreement with two recent precise measurements and not consistent with the most recent one [L. J. Broussard , Phys. Rev. Lett. 112, 212301 (2014)PRLTAO0031-900710.1103/PhysRevLett.112.212301] by 3.0 standard deviations. The full potential of the technique for nuclei with half-lives of a few seconds is discussed.

Published
2017
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41. GET electronics samples data analysis

Author

Giovinazzo, J., Goigoux, T., Anvar, S., Baron, P., Blank, B., Delagnes, E., Grinyer, G.F., Pancin, J., Pedroza, J.L., Pibernat, J., Pollacco, E., Rebii, A., Roger, T., and Sizun, P.

Published
2016
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42. Double differential neutron spectra generated by the interaction of a 12 MeV/nucleon 36S beam on a thick natCu target

Author

Trinh, N.D., primary, Fadil, M., additional, Lewitowicz, M., additional, Ledoux, X., additional, Laurent, B., additional, Thomas, J.-C., additional, Clerc, T., additional, Desmezières, V., additional, Dupuis, M., additional, Madeline, A., additional, Dessay, E., additional, Grinyer, G.F., additional, Grinyer, J., additional, Menard, N., additional, Porée, F., additional, Achouri, L., additional, Delaunay, F., additional, and Parlog, M., additional

Published
2018
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43. In-beam γ -ray spectroscopy of $^{63}$Mn

Author

Baugher, T., Gade, A., Janssens, R.V.F., Lenzi, S.M., Bazin, Dominique, Carpenter, M.P., Chiara, C.J., Deacon, A.N., Freeman, S.J., Grinyer, G.F., Hoffman, C.R., Kay, . P., Kondev, F.G., Lauritsen, T., Lunderberg, E.M., Mcdaniel, S., Meierbachtol, K.C., Ratkiewicz, A., Stroberg, S.R., Walsh, K.A., Weisshaar, D., Zhu, S., National Superconducting Cyclotron Laboratory (NSCL), Michigan State University [East Lansing], Michigan State University System-Michigan State University System, Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

The measurement was performed at the National Superconducting Cyclotron Laboratory (NSCL).; International audience; Background: Neutron-rich, even-mass chromium and iron isotopes approaching neutron number N = 40 havebeen important benchmarks in the development of shell-model effective interactions incorporating the effectsof shell evolution in the exotic regime. Odd-mass manganese nuclei have received less attention, but provideimportant and complementary sensitivity to these interactions.Purpose:We report the observation of two newγ -ray transitions in 63Mn,which establish the (9/2−) and (11/2−)levels on top of the previously known (7/2−) first-excited state. The lifetime for the (7/2−) and (9/2−) excitedstates were determined for the first time, while an upper limit could be established for the (11/2−) level.Method: Excited states in 63Mn have been populated in inelastic scattering from a 9Be target and in thefragmentation of 65Fe. γγ coincidence relationships were used to establish the decay level scheme. A Dopplerline-shape analysis for the Doppler-broadened (7/2−) → 5/2−, (9/2−)→ (7/2−), and (11/2−) → (9/2−)transitions was used to determine (limits for) the corresponding excited-state lifetimes.Results: The low-lying level scheme and the excited-state lifetimes were compared with large-scale shell-modelcalculations using different model spaces and effective interactions in order to isolate important aspects of shellevolution in this region of structural change.Conclusions: While the theoretical (7/2−) and (9/2−) excitation energies show little dependence on the modelspace, the calculated lifetime of the (7/2−) level and calculated energy of the (11/2−) level reveal the importanceof including the neutron g9/2 and d5/2 orbitals in the model space. The LNPS effective shell-model interactionprovides the best overall agreement with the new data.

Published
2016
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44. Observation of isoscalar multipole strengths in exotic doubly-magic 56Ni in inelastic α scattering in inverse kinematics

Author

Bagchi, S., Gibelin, J., Harakeh, M.N., Kalantar-Nayestanaki, N., Achouri, N.L., Akimune, H., Bastin, B., Boretzky, K., Bouzomita, H., Caamaño, M., Càceres, L., Damoy, S., Delaunay, F., Fernández-Domínguez, B., Fujiwara, M., Garg, U., Grinyer, G.F., Kamalou, O., Khan, E., Krasznahorkay, A., Lhoutellier, G., Libin, J.F., Lukyanov, S., Mazurek, K., Najafi, M.A., Pancin, J., Penionzhkevich, Y., Perrot, L., Raabe, R., Rigollet, C., Roger, T., Sambi, S., Savajols, H., Senoville, M., Stodel, C., Suen, L., Thomas, J.C., Vandebrouck, M., and Van de Walle, J.

Published
2015
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45. Auxiliary Detectors and electronics

Author

Grinyer, G.F., Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Lion, Michel

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2015

46. Physics opportunities with ACTAR TPC

Author

Grinyer, G.F., Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Lion, Michel

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2015

47. Spectroscopy of $^{28}$Na: shell evolution toward the drip line

Author

Lepailleur, A., Wimmer, K., Mutschler, A., Sorlin, O., Bader, V., Bancroft, C., Barofsky, D., Bastin, B., Baugher, T., Bazin, Dominique, Bildstein, V., Borcea, C., Borcea, R., Brown, B.A., Caceres, L., Gade, A., Gaudefroy, L., Grévy, S., Grinyer, G.F., Iwasaki, H., Khan, E., Kröll, T., Langer, C., Lemasson, A., Llidoo, O., Lloyd, J., Negoita, F., de Oliveira Santos, Francois, Perdikakis, G., Recchia, F., Redpath, T., Roger, T., Rotaru, F., Saenz, S., Saint-Laurent, M.G., Smalley, D., Sohler, D., Stanoiu, M., Stroberg, S.R., Thomas, J.C., Vandebrouck, M., Weisshaar, D., Westerberg, A., Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), 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), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), GANILEXP, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
21.60.Cs, FOS: Physical sciences, 23.20.Lv, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 27.30.+t, Nuclear Experiment
Abstract

Excited states in $^{28}$Na have been studied using the $\beta$-decay of implanted $^{28}$Ne ions at GANIL/LISE as well as the in-beam $\gamma$-ray spectroscopy at the NSCL/S800 facility. New states of positive (J$^{\pi}$=3,4$^+$) and negative (J$^{\pi}$=1-5$^-$) parity are proposed. The former arise from the coupling between 0d$\_{5/2}$ protons and a 0d$\_{3/2}$ neutron, while the latter are due to couplings with 1p$\_{3/2}$ or 0f$\_{7/2}$ neutrons. While the relative energies between the J$^{\pi}$=1-4$^+$ states are well reproduced with the USDA interaction in the N=17 isotones, a progressive shift in the ground state binding energy (by about 500 keV) is observed between $^{26}$F and $^{30}$Al. This points to a possible change in the proton-neutron 0d$\_{5/2}$-0d$\_{3/2}$ effective interaction when moving from stability to the drip line. The presence of J$^{\pi}$=1-4$^-$ negative parity states around 1.5 MeV as well as of a candidate for a J$^{\pi}$=5$^-$ state around 2.5 MeV give further support to the collapse of the N=20 gap and to the inversion between the 0f$\_{7/2}$ and 1p$\_{3/2}$ levels below Z=12. These features are discussed in the framework of Shell Model and EDF calculations, leading to predicted negative parity states in the low energy spectra of the $^{26}$F and $^{25}$O nuclei., Comment: Exp\'erience GANIL/LISE et NSCL/S800

Published
2015
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48. High-precision half-life measurements of the T =1/2 mirror $\beta$ decays $^{17}$F and $^{33}$Cl

Author

Grinyer, J., Grinyer, G.F., Babo, M., Bouzomita, H., Chauveau, P., Delahaye, P., Dubois, M., Frigot, R., Jardin, P., Leboucher, C., Maunoury, L., Seiffert, C., Thomas, J.C., Traykov, E., Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), ISOLDE, CERN, CERN [Genève], Institut Pluridisciplinaire Hubert Curien (IPHC), Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), GANILEXP, and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

Expérience GANIL/SPIRAL; International audience; Measurements of the ft values for T=1/2 mirror $\beta$+ decays offer a method to test the conserved vector current hypothesis and to determine Vud, the up-down matrix element of the Cabibbo-Kobayashi-Maskawa matrix. In most mirror decays used for these tests, uncertainties on the ft values are dominated by the uncertainties in the half-lives. Two precision half-life measurements were performed for the T=1/2 $\beta$+ emitters, 17F and 33Cl, in order to eliminate the half-life as the leading source of uncertainty in their ft values. \item[Method] Half-lives of 17F and 33Cl were determined using $\beta$ counting of implanted radioactive ion beam samples on a moving tape transport system at the SPIRAL low energy identification station at GANIL. The 17F half-life result, 64.347~(35) s, precise to $\pm$0.05 %, is a factor of 5 times more precise than the previous world average. The half-life of 33Cl was determined to be 2.5038~(22) s. The current precision of $\pm$0.09 % is nearly 2 times more precise compared to the previous world average. The precision achieved during the present measurements implies that the half-life no longer dominates the uncertainty of the ft values for both T=1/2 mirror decays 17F and 33Cl.

Published
2015
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49. High-precision half-life measurements for the superallowed Fermi β+ emitter $^{18}$Ne

Author

LAFFOLEY, A. T., SVENSSON, C. E., ANDREOIU, C., BALL, G. C., BENDER, P. C., BIDAMAN, H., BILDSTEIN, V., BLANK, Bertram, CROSS, D. S., DENG, G., VARELA, A. Diaz, DUNLOP, M. R., DUNLOP, R., GARNSWORTHY, A. B., GARRETT, P. E., GIOVINAZZO, J., GRINYER, G.F., GRINYER, J., HACKMAN, G., HADINIA, B., JAMIESON, D. S., JIGMEDDORJ, B., KISLIUK, D., LEACH, K. G., LESLIE, J. R., MACLEAN, A. D., MILLER, D., MILLS, B., MOUKADDAM, M., RADICH, A. J., RAJABALI, M. M., RAND, E. T., THOMAS, J.C., TURKO, J., UNSWORTH, C., VOSS, P., Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 23.40.−s, 21.10.Tg, 24.80.+y, 27.20.+n, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2015
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50. Isoscalar response of $^{68}$Ni to $\alpha$-particle and deuteron probes

Author

Vandebrouck, M., Gibelin, J., Khan, E., Achouri, N.L., Baba, H., Beaumel, D., Blumenfeld, Y., Caamano, M., Caceres, L., Colo, G., Delaunay, F., Fernandez-Dominguez, B., Garg, U., Grinyer, G.F., Harakeh, M.N., Kalantar-Nayestanaki, N., Keeley, N., Mittig, W., Pancin, J., Raabe, R., Roger, T., Roussel-Chomaz, P., Savajols, H., Sorlin, O., Stodel, C., Suzuki, D., Thomas, J.C., Institut de Physique Nucléaire d'Orsay (IPNO), 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), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), RIKEN Nishina Center for Accelerator-Based Science [Wako] (RIKEN RNC), RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), Universidade de Santiago de Compostela [Spain] (USC ), University of Notre Dame [Indiana] (UND), KVI-CART, University of Groningen, University of Groningen [Groningen], National Centre for Nuclear Research [Otwock], Narodowe Centrum Badań Jądrowych (NCBJ), National Superconducting Cyclotron Laboratory (NSCL), Michigan State University [East Lansing], Michigan State University System-Michigan State University System, Instituut voor Kern- en Stralingsfysica, Catholic University of Leuven - Katholieke Universiteit Leuven (KU Leuven), CEA / DSM, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), GANILEXP, 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), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
21.10.Re,24.30.Cz,21.60.Jz,24.50.+g,21.60.Ev, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

Exprérience GANIL/LISE/MAYA; International audience; Isoscalar giant resonances have been measured in the unstable Ni68 nucleus using inelastic alpha and deuteron scattering at 50A MeV in inverse kinematics with the active target MAYA at GANIL. Using alpha scattering, the extracted isoscalar giant monopole resonance (ISGMR) centroid was determined to be 21.1±1.9 MeV and the isoscalar giant quadrupole resonance (ISGQR) to be 15.9±1.3 MeV. Indications for soft isoscalar monopole and dipole modes are provided. Results obtained with both (α,α′) and (d,d′) probes are compatible. The evolution of isoscalar giant resonances along the Ni isotopic chain from Ni56 to Ni68 is discussed.

Published
2015
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