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Author |
Domingo-Pardo, C. |
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Title |
Beta-delayed neutron emission: first measurements in the heavy mass region and future prospects |
Type |
Journal Article |
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Year |
2016 |
Publication  |
Acta Physica Polonica B |
Abbreviated Journal |
Acta Phys. Pol. B |
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Volume |
47 |
Issue |
3 |
Pages |
729-737 |
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Keywords |
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Abstract |
Beta-delayed neutrons play a key role in the formation of heavy elements in explosive stellar environments. The final r-process abundance distribution, including the rare-earth peak, is tailored to a large extent by the neutrons released after the beta decay of very exotic neutron-rich nuclei encountered along the r-process path and during the freeze-out phase. Such scenarios involve a vast amount of – yet undiscovered – nuclei, and most of them are expected to be neutron emitters. In this respect, existing beta-delayed neutron emission data is rather scarce, spanning from the lightest isotopes up to the region of the fission-fragments with masses up to A similar to 150. This contribution gives an overview on the latest measurements of neutron branching ratios in the heavy mass region around N = 126, which was practically unexplored in the past. Present plans to access very exotic nuclei at the RIB-facility of RIKEN in the framework of the BRIKEN project, are presented, together with the expected impact in r-process nucleosynthesis studies. |
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Address |
[Domingo-Pardo, C.; S410 GSI Collaboration; BRIKEN Collaboration] Univ Valencia, CSIC, IFIC, Valencia, Spain |
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Publisher |
Wydawnictwo Uniwersytetu Jagiellonskiego |
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English |
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ISSN |
0587-4254 |
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Conference |
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Notes |
WOS:000373495500015 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
no |
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Call Number |
IFIC @ pastor @ |
Serial |
2623 |
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Author |
IGISOL Collaboration (Briz, J.A. et al); Algora, A.; Tain, J.L.; Guadilla, V.; Agramunt, J.; Estevez, E.; Jordan, M.D.; Molina, F.; Montaner-Piza, A.; Orrigo, S.E.A.; Perez, A.B.; Rubio, B. |
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Title |
Total absorption spectroscopy of fission fragments relevant for reactor antineutrino spectra determination |
Type |
Journal Article |
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Year |
2016 |
Publication |
Acta Physica Polonica B |
Abbreviated Journal |
Acta Phys. Pol. B |
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Volume |
47 |
Issue |
3 |
Pages |
755-762 |
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Keywords |
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Abstract |
The contribution of each fission fragment to the reactor antineutrino spectra was determined using the summation method based on the existing information on fission yields and decay data contained in nuclear databases and the reactor evolution code MURE. The beta decay of some of the main contributors has been studied using the Total Absorption Spectroscopy (TAS) technique during two experimental campaigns at the IGISOL facility, in Jyvaskyla (Finland). Results on the decay of Rb-92, the most important contributor in the 4-8 MeV energy region are reported. The status of the analysis of the second experiment is presented as well. |
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Address |
[Briz, J. A.; Zakari-Issoufou, A-A; Fallot, M.; Porta, A.; Bui, V. M.; Cormon, S.; Cucoanes, A.; Estienne, M.; Shiba, T.] Univ Nantes, Ecole Mines Nantes, SUBATECH, CNRS,IN2P3, Nantes, France |
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Publisher |
Wydawnictwo Uniwersytetu Jagiellonskiego |
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English |
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Original Title |
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ISSN |
0587-4254 |
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Conference |
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Notes |
WOS:000373495500018 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2624 |
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Author |
AGATA Collaboration (Krzysiek, M. et al); Gadea, A. |
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Title |
Gamma decay of the possible 1(-) two-phonon state in Ce-140 excited via inelastic scattering of O-17 |
Type |
Journal Article |
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Year |
2016 |
Publication |
Acta Physica Polonica B |
Abbreviated Journal |
Acta Phys. Pol. B |
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Volume |
47 |
Issue |
3 |
Pages |
859-866 |
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Keywords |
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Abstract |
The gamma decay from the low-lying dipole states of Ce-140 excited via inelastic scattering of O-17 at bombarding energy of 340 MeV was measured using the high resolution AGATA-Demonstrator array in coincidence with scattered ions detected in two segmented Delta E-E silicon detectors of the TRACE array. Particular attention is here given to the decay of the first 1(-) state at 3643 keV which is considered to be of two-phonon character. The gamma-gamma coincidence method was applied to select desired decay branch. No direct decay from this state was observed to 2(+) and 3(-) phonon states which would be the proof of the pure harmonic coupling. The comparison between experimentally obtained differential cross sections and analysis with distorted wave Born approximation (DWBA) allowed to conclude that the first 1(-) state has a different nature than higher-lying pygmy dipole states. This was possible using the form factor obtained by folding a microscopically calculated transition density. |
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Address |
[Krzysiek, M.; Kmiecik, M.; Maj, A.; Bednarczyk, P.; Ciemala, M.; Grebosz, J.; Mazurek, K.; Zieblinski, M.] H Niewodniczanski Inst Nucl Phys, PAN, PL-31342 Krakow, Poland |
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Publisher |
Wydawnictwo Uniwersytetu Jagiellonskiego |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0587-4254 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000373495500032 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2625 |
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Author |
Fujita, Y.; Rubio, B.; Molina, F.; Adachi, T.; Fujita, H.; Blank, B.; Ganioglu, E.; Gelletly, W.; Orrigo, S.E.A. |
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Title |
The Tz = ±1 → 0 and ±2 →±1 Mirror Gamow–Teller transitions in pf-shell nuclei |
Type |
Journal Article |
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Year |
2016 |
Publication |
Acta Physica Polonica B |
Abbreviated Journal |
Acta Phys. Pol. B |
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Volume |
47 |
Issue |
3 |
Pages |
867-881 |
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Keywords |
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Abstract |
Gamow-Teller (GT) transitions are the most common weak-interaction processes in the Universe. They play important roles in various processes of nucleosynthesis, for example, in the rapid proton-capture process (rp-process). In the pf-shell region, the rp-process runs through neutron-deficient nuclei with T-z = -2, -1, and 0 mainly by means of GT and Fermi transitions, where T-z is the z component of isospin T defined by T-z = (N = Z)/2. Under the assumption of isospin symmetry, mirror nuclei with reversed Z and N numbers, and thus with opposite signs of T-z, have the same structure. Therefore, symmetry is also expected for the GT transitions starting from and ending up in mirror nuclei. We have been studying the T-z = -2 -> -1 and -1 -> 0 GT transitions in beta decays, while those from stable T-z = +2 and +1 nuclei by means of hadronic (He-3; t) charge-exchange (CE) reactions. The results from these studies are compared in order to examine the mirror-symmetry structure in nuclei. In addition, these results are combined for the better understanding of GT transitions in the pf-shell region. |
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Address |
[Fujita, Y.; Adachi, T.; Fujita, H.] Osaka Univ, RCNP, Ibaraki, Osaka 5670047, Japan |
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Corporate Author |
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Thesis |
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Publisher |
Wydawnictwo Uniwersytetu Jagiellonskiego |
Place of Publication |
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Language |
English |
Summary Language |
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Original Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0587-4254 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000373495500033 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2626 |
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Author |
Oset, E.; Bayar, M.; Dote, A.; Hyodo, T.; Khemchandani, K.P.; Liang, W.H.; Martinez Torres, A.; Oka, M.; Roca, L.; Uchino, T.; Xiao, C.W. |
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Title |
Two-, Three-, Many-body Systems Involving Mesons. Multimeson Condensates |
Type |
Journal Article |
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Year |
2016 |
Publication |
Acta Physica Polonica B |
Abbreviated Journal |
Acta Phys. Pol. B |
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Volume |
47 |
Issue |
2 |
Pages |
357-365 |
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Keywords |
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Abstract |
In this paper, we review results from studies with unconventional many-hadron systems containing mesons: systems with two mesons and one baryon, three mesons, some novel systems with two baryons and one meson, and finally, systems with many vector mesons, up to six, with their spins aligned forming states of increasing spin. We show that in many cases, one has experimental counterparts for the states found, while in some other cases, they remain as predictions, which we suggest to be searched in BESIII, Belle, LHCb, FAIR and other facilities. |
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Address |
Inst Invest Paterna, Ctr Mixto Univ Valencia CSIC, Dept Fis Teor, Apartado 22085, Valencia 46071, Spain |
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Corporate Author |
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Thesis |
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Publisher |
Wydawnictwo Uniwersytetu Jagiellonskiego |
Place of Publication |
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Editor |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0587-4254 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000373493700015 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2627 |
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Author |
Bernabeu, J. |
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Title |
Discrete Symmetries CP,T,CPT |
Type |
Journal Article |
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Year |
2016 |
Publication |
Acta Physica Polonica B |
Abbreviated Journal |
Acta Phys. Pol. B |
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Volume |
47 |
Issue |
2 |
Pages |
417-424 |
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Keywords |
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Abstract |
The role of symmetry breaking mechanisms to search for new physics is of highest importance. We discuss the status and prospects of the discrete symmetries CP, T, CPT looking for their separate violation in LHC experiments and meson factories. |
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Address |
[Bernabeu, Jose] Univ Valencia, Dept Theoret Phys, E-46003 Valencia, Spain, Email: jose.bernabeu@uv.es |
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Corporate Author |
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Thesis |
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Publisher |
Wydawnictwo Uniwersytetu Jagiellonskiego |
Place of Publication |
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Editor |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0587-4254 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000373493700022 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
no |
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Call Number |
IFIC @ pastor @ |
Serial |
2628 |
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| Permanent link to this record |
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Author |
Davesne, D.; Becker, P.; Pastore, A.; Navarro, J. |
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Title |
Infinite matter properties and zero-range limit of non-relativistic finite-range interactions |
Type |
Journal Article |
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Year |
2016 |
Publication |
Annals of Physics |
Abbreviated Journal |
Ann. Phys. |
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Volume |
375 |
Issue |
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Pages |
288-312 |
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Keywords |
Equation of state; Effective interaction; Infinite matter |
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Abstract |
We discuss some infinite matter properties of two finite-range interactions widely used for nuclear structure calculations, namely Gogny and M3Y interactions. We show that some useful informations can be deduced for the central, tensor and spin orbit terms from the spin-isospin channels and the partial wave decomposition of the symmetric nuclear matter equation of state. We show in particular that the central part of the Gogny interaction should benefit from the introduction of a third Gaussian and the tensor parameters of both interactions can be deduced from special combinations of partial waves. We also discuss the fact that the spin orbit of the M3Y interaction is not compatible with local gauge invariance. Finally, we show that the zero-range limit of both families of interactions coincides with the specific form of the zero-range Skyrme interaction extended to higher momentum orders and we emphasize from this analogy its benefits. |
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Address |
[Davesne, D.; Becker, P.] Univ Lyon 1, Univ Lyon, CNRS IN2P3, Nucl Phys Inst Lyon,UMR 5822, F-69622 Villeurbanne, France, Email: pbecker@ipnl.in2p3.fr |
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Publisher |
Academic Press Inc Elsevier Science |
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Editor |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0003-4916 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000389788100017 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2887 |
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Author |
Boyero Garcia, R.; Carpentier, A.V.; Gomez-Cadenas, J.J.; Peralta Conde, A. |
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Title |
A novel technique to achieve atomic macro-coherence as a tool to determine the nature of neutrinos |
Type |
Journal Article |
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Year |
2016 |
Publication |
Applied Physics B |
Abbreviated Journal |
Appl. Phys. B |
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Volume |
122 |
Issue |
10 |
Pages |
262 - 13pp |
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Keywords |
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Abstract |
The photon spectrum in macro-coherent atomic deexcitation via radiative emission of neutrino pairs has been proposed as a sensitive probe of the neutrino mass spectrum, capable of competing with conventional neutrino experiments. In this paper, we revisit this intriguing possibility, presenting an alternative method for inducing large coherence in a target based on adiabatic techniques. More concretely, we propose the use of a modified version of coherent population return (CPR), namely two-photon CPR, that turns out to be extremely robust with respect to the experimental parameters and capable of inducing a coherence close to 100 % in the target. |
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Address |
[Boyero Garcia, R.] Univ Salamanca, Fac Ciencias, E-37008 Salamanca, Spain, Email: robertobg@usal.es; |
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Thesis |
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Publisher |
Springer |
Place of Publication |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0946-2171 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000388419100013 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
no |
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Call Number |
IFIC @ pastor @ |
Serial |
2871 |
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Author |
Gimenez-Alventosa, V.; Ballester, F.; Vijande, J. |
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Title |
VoxelMages: a general-purpose graphical interface for designing geometries and processing DICOM images for PENELOPE |
Type |
Journal Article |
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Year |
2016 |
Publication |
Applied Radiation And Isotopes |
Abbreviated Journal |
Appl. Radiat. Isot. |
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Volume |
118 |
Issue |
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Pages |
251-257 |
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Keywords |
87.53.Bn; 87.53.Jw; 87.55.Qr; 87.55.km; 87.55.K |
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Abstract |
The design and construction of geometries for Monte Carlo calculations is an error-prone, time-consuming, and complex step in simulations describing particle interactions and transport in the field of medical physics. The software VoxelMages has been developed to help the user in this task. It allows to design complex geometries and to process DICOM image files for simulations with the general-purpose Monte Carlo code PENELOPE in an easy and straightforward way. VoxelMages also allows to import DICOM-RT structure contour information as delivered by a treatment planning system. Its main characteristics, usage and performance benchmarking are described in detail. |
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Address |
[Gimenez-Alventosa, V.; Ballester, F.; Vijande, J.] Univ Valencia, Dept Fis Atom Mol & Nucl, E-46100 Valencia, Spain |
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Publisher |
Pergamon-Elsevier Science Ltd |
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Language |
English |
Summary Language |
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Original Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0969-8043 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000390736100039 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
no |
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Call Number |
IFIC @ pastor @ |
Serial |
2904 |
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| Permanent link to this record |
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Author |
Davesne, D.; Pastore, A.; Navarro, J. |
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Title |
Extended Skyrme equation of state in asymmetric nuclear matter |
Type |
Journal Article |
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Year |
2016 |
Publication |
Astronomy & Astrophysics |
Abbreviated Journal |
Astron. Astrophys. |
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Volume |
585 |
Issue |
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Pages |
A83 - 11pp |
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Keywords |
dense matter; equation of state |
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Abstract |
We present a new equation of state for infinite systems (symmetric, asymmetric, and neutron matter) based on an extended Skyrme functional that has been constrained by microscopic Brueckner-Bethe-Goldstone results. The resulting equation of state reproduces the main features of microscopic calculations very accurately and is compatible with recent measurements of two times Solar-mass neutron stars. We provide all necessary analytical expressions to facilitate a quick numerical implementation of quantities of astrophysical interest. |
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Address |
[Davesne, D.] Univ Lyon 1, CNRS, Inst Phys Nucl Lyon, UMR 5822,IN2P3, 43 Bd 11 Novembre 1918, F-69622 Villeurbanne, France, Email: alessandro.pastore@york.ac.uk |
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Corporate Author |
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Thesis |
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Publisher |
Edp Sciences S A |
Place of Publication |
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Editor |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1432-0746 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000369710300090 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2562 |
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| Permanent link to this record |
