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Author |
Taprogge, J. et al; Gadea, A.; Montaner-Piza, A. |
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Title |
Proton-hole and core-excited states in the semi-magic nucleus In-131(82) |
Type |
Journal Article |
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Year |
2016 |
Publication |
European Physical Journal A |
Abbreviated Journal |
Eur. Phys. J. A |
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Volume  |
52 |
Issue |
11 |
Pages |
347 - 10pp |
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Abstract |
The decay of the N = 83 nucleus Cd-131 has been studied at the RIBF facility at the RIKEN Nishina Center. The main purpose of the study was to identify the position of the and proton-hole states and the energies of core-excited configurations in the semi-magic nucleus In-131. From the radiation emitted following the decay, a level scheme of In-131 was established and the feeding to each excited state determined. Similarities between the single-particle transitions observed in the decays of the N = 83 isotones In-132 and Cd-131 are discussed. Finally the excitation energies of several core-excited configurations in In-131 are compared to QRPA and shell-model calculations. |
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Address |
[Taprogge, J.; Jungclaus, A.] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain, Email: andrea.jungclaus@csic.es |
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Springer |
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English |
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ISSN |
1434-6001 |
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Notes |
WOS:000391427400001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2913 |
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Author |
Guo, F.K.; Meissner, U.G.; Nieves, J.; Yang, Z. |
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Title |
Remarks on the P-c structures and triangle singularities |
Type |
Journal Article |
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Year |
2016 |
Publication |
European Physical Journal A |
Abbreviated Journal |
Eur. Phys. J. A |
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Volume |
52 |
Issue |
10 |
Pages |
318 - 6pp |
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Keywords |
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Abstract |
It was proposed that the narrow P-c(4450) structure observed by the LHCb Collaboration in the reaction Lambda(b) -> J/psi pK might be due to a triangle singularity around the chi(c1)-proton threshold at 4.45 GeV. We discuss the occurrence of a similar triangle singularity in the J/psi p invariant mass distribution for the decay Lambda(b) -> J/psi p pi, which could explain the bump around 4.45 GeV in the data. More precise measurements of this process would provide valuable information towards an understanding of the P-c structures. |
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Address |
[Guo, Feng-Kun] Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China, Email: fkguo@itp.ac.cn; |
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Springer |
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English |
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ISSN |
1434-6001 |
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Conference |
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Notes |
WOS:000391807700001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2914 |
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Author |
PANDA Collaboration (Singh, B. et al); Diaz, J. |
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Title |
Feasibility studies of time-like proton electromagnetic form factors at PANDA at FAIR |
Type |
Journal Article |
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Year |
2016 |
Publication |
European Physical Journal A |
Abbreviated Journal |
Eur. Phys. J. A |
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Volume |
52 |
Issue |
10 |
Pages |
325 - 23pp |
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Keywords |
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Abstract |
Simulation results for future measurements of electromagnetic proton form factors at PANDA (FAIR) within the PandaRoot software framework are reported. The statistical precision with which the proton form factors can be determined is estimated. The signal channel (p) over barp -> e(+)e(-) is studied on the basis of two different but consistent procedures. The suppression of the main background channel, i.e. (p) over barp -> pi(+)pi(-), is studied. Furthermore, the background versus signal efficiency, statistical and systematical uncertainties on the extracted proton form factors are evaluated using two different procedures. The results are consistent with those of a previous simulation study using an older, simplified framework. However, a slightly better precision is achieved in the PandaRoot study in a large range of momentum transfer, assuming the nominal beam conditions and detector performance. |
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Address |
[Singh, B.] Aligarth Muslim Univ, Dept Phys, Aligarh, India, Email: khaneftd@kph.uni-mainz.de |
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Springer |
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English |
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ISSN |
1434-6001 |
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Conference |
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Notes |
WOS:000391808200001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2933 |
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Author |
Liang, W.H.; Uchino, T.; Xiao, C.W.; Oset, E. |
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Title |
Baryon states with open charm in the extended local hidden gauge approach |
Type |
Journal Article |
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Year |
2015 |
Publication |
European Physical Journal A |
Abbreviated Journal |
Eur. Phys. J. A |
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Volume |
51 |
Issue |
2 |
Pages |
16 - 14pp |
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Keywords |
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Abstract |
In this paper we examine the interaction of DN and D* N states, together with their coupled channels, by using an extension of the local hidden gauge formalism from the light meson sector, which is based on heavy quark spin symmetry. The scheme is based on the use of the impulse approximation at the quark level, with the heavy quarks acting as spectators, which occurs for the dominant terms where there is the exchange of a light meson. The pion exchange and the Weinberg-Tomozawa interactions are generalized and with this dynamics we look for states generated from the interaction, with a unitary coupled channels approach that mixes the pseudoscalar-baryon and vector-baryon states. We find two states with nearly zero width, which are associated to the I > (c) (2595) and I > (c) (2625). The lower state, with J (P) = 1/2(-), couples to DN and D* N, and the second one, with J (P) = 3/2(-), to D* N. In addition to these two I > (c) states, we find four more states with I = 0, one of them nearly degenerate in two states of J (P) = 1/2, 3/2. Furthermore we find three states in I = 1, two of them degenerate in J = 1/2, 3/2. |
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Address |
[Liang, W. H.] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China, Email: liangwh@gxnu.edu.cn |
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Publisher |
Springer |
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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 |
1434-6001 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000349297200001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2105 |
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Author |
Bizzeti, P.G.; Sona, P.; Michelagnoli, C.; Melon, B.; Bazzacco, D.; Farnea, E.; Bizzeti-Sona, A.M.; de Angelis, G.; Gadea, A.; Gottardo, A.; Lunardi, S.; Menegazzo, R.; Mengoni, D.; Nannini, A.; Napoli, D.R.; Perego, A.; Recchia, F.; Sahin, E.; Valiente-Dobon, J.J.; Ur, C.A. |
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Title |
Analyzing power of AGATA triple clusters for gamma-ray linear polarization |
Type |
Journal Article |
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Year |
2015 |
Publication |
European Physical Journal A |
Abbreviated Journal |
Eur. Phys. J. A |
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Volume |
51 |
Issue |
4 |
Pages |
49 - 11pp |
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Keywords |
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Abstract |
We have investigated the ability of AGATA triple clusters to measure the linear polarization of gamma rays, exploiting the azimuthal-angle dependence of the Compton scattering differential cross section. To this aim, partially polarized gamma rays have been produced by Coulomb excitation of the first excited state of Pd-104 and Pd-108, which decay to the ground state by emission of gamma rays of 555.8 keV and 433.9 keV, respectively. Pulse-shape analysis and gamma-ray tracking techniques have been used to determine the position and time sequence of the interaction points inside the germanium crystals. Anisotropies in the detection efficiency have been taken into account using 661.6 keV gammas from a Cs-137 radioactive source. We obtain an average analyzing power of 0.451(34) at 433.9 keV and 0.484(24) at 555.8 keV. |
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Address |
[Bizzeti, P. G.; Sona, P.; Melon, B.; Bizzeti-Sona, A. M.; Perego, A.] Univ Florence, Dipartimento Fis, Florence, Italy, Email: bizzeti@fi.infn.it |
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Corporate Author |
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Thesis |
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Publisher |
Springer |
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 |
1434-6001 |
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:000353789600001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2214 |
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| Permanent link to this record |
