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Author |
Moschner, K. et al; Algora, A. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Relativistic Coulomb excitation of Kr-88 |
Type |
Journal Article |
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Year |
2016 |
Publication |
Physical Review C |
Abbreviated Journal |
Phys. Rev. C |
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Volume |
94 |
Issue |
5 |
Pages |
054323 - 5pp |
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Abstract |
To investigate the systematics of mixed-symmetry states in N = 52 isotones, a relativistic Coulomb excitation experiment was performed during the PreSPEC campaign at the GSI Helmholtzzentrum fur Schwerionenforschung to determine E2 transition strengths to 2(+) states of the radioactive nucleus Kr-88. Absolute transition rates could be measured towards the first and third 2+ states. For the latter a mixed-symmetry character is suggested on the basis of the indication for a strong M1 transition to the fully symmetric 2(1)(+) state, extending the knowledge of the N = 52 isotones below Z = 40. A comparison with the proton-neutron interacting boson model and shell-model predictions is made and supports the assignment. |
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Address ![sorted by Address field, descending order (down)](img/sort_desc.gif) |
[Moschner, K.; Blazhev, A.; Jolie, J.; Warr, N.; Braun, N.; Hackstein, M.; Naqvi, F.; Reiter, P.; Rudigier, M.; Taprogge, J.; Thomas, T.; Wendt, A.] Univ Cologne, Inst Kernphys, Cologne, Germany |
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Publisher |
Amer Physical Soc |
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English |
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ISSN |
2469-9985 |
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Notes |
WOS:000388821800005 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2910 |
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Author |
Montanari, D. et al; Gadea, A. |
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Title |
Pair neutron transfer in Ni-60+Sn-116 probed via gamma-particle coincidences |
Type |
Journal Article |
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Year |
2016 |
Publication |
Physical Review C |
Abbreviated Journal |
Phys. Rev. C |
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Volume |
93 |
Issue |
5 |
Pages |
054623 - 6pp |
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Abstract |
We performed a gamma-particle coincidence experiment for the Ni-60 + Sn-116 system to investigate whether the population of the two-neutron pickup channel leading to Ni-62 is mainly concentrated in the ground-state transition, as has been found in a previous work [D. Montanari et al., Phys. Rev. Lett. 113, 052501 (2014)]. The experiment has been performed by employing the PRISMA magnetic spectrometer coupled to the Advanced Gamma Tracking Array (AGATA) demonstrator. The strength distribution of excited states corresponding to the inelastic, one-and two-neutron transfer channels has been extracted. We found that in the two-neutron transfer channel the strength to excited states corresponds to a fraction (less than 24%) of the total, consistent with the previously obtained results that the 2n channel is dominated by the ground-state to ground-state transition. |
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Address ![sorted by Address field, descending order (down)](img/sort_desc.gif) |
[Montanari, D.; Bazzacco, D.; Mengoni, D.; Montagnoli, G.; Recchia, F.; Scarlassara, F.; Ur, C. A.] Univ Padua, Dipartimento Fis & Astron, I-35131 Padua, Italy |
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Publisher |
Amer Physical Soc |
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English |
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ISSN |
2469-9985 |
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Notes |
WOS:000376921400006 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2705 |
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Permanent link to this record |
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Author |
Moline, A.; Schewtschenko, J.A.; Palomares-Ruiz, S.; Boehm, C.; Baugh, C.M. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Isotropic extragalactic flux from dark matter annihilations: lessons from interacting dark matter scenarios |
Type |
Journal Article |
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Year |
2016 |
Publication |
Journal of Cosmology and Astroparticle Physics |
Abbreviated Journal |
J. Cosmol. Astropart. Phys. |
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Volume |
08 |
Issue |
8 |
Pages |
069 - 23pp |
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Keywords |
dark matter simulations; dark matter theory; gamma ray theory |
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Abstract |
The extragalactic gamma-ray and neutrino emission may have a contribution from dark matter (DM) annihilations. In the case of discrepancies between observations and standard predictions, one could infer the DM pair annihilation cross section into cosmic rays by studying the shape of the energy spectrum. So far all analyses of the extragalactic DM signal have assumed the standard cosmological model (ACDM) as the underlying theory. However, there are alternative DM scenarios where the number of low-mass objects is significantly suppressed. Therefore the characteristics of the gamma-ray and neutrino emission in these models may differ from ACDM as a result. Here we show that the extragalactic isotropic signal in these alternative models has a similar energy dependence to that in ACDM, but the overall normalisation is reduced. The similarities between the energy spectra combined with the flux suppression could lead one to misinterpret possible evidence for models beyond ACDM as being due to CDM particles annihilating with a much weaker cross section than expected. |
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Address ![sorted by Address field, descending order (down)](img/sort_desc.gif) |
[Moline, Angeles] Univ Tecn Lisboa, Inst Super Tecn, CFTP, Av Rovisco Pais 1, P-1049001 Lisbon, Portugal, Email: maria.moline@ist.utl.pt; |
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Publisher |
Iop Publishing Ltd |
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English |
Summary Language |
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ISSN |
1475-7516 |
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Notes |
WOS:000389859100053 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2900 |
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Permanent link to this record |
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Author |
Molina, R.; Doring, M.; Oset, E. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Determination of the compositeness of resonances from decays: The case of the B-s(0) -> J/Psi f(1)(1285) |
Type |
Journal Article |
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Year |
2016 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
93 |
Issue |
11 |
Pages |
114004 - 10pp |
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Abstract |
We develop a method to measure the amount of compositeness of a resonance, mostly made as a bound state of two hadrons, by simultaneously measuring the rate of production of the resonance and the mass distribution of the two hadrons close to threshold. By using different methods of analysis we conclude that the method allows one to extract the value of 1-Z with about 0.1 of uncertainty. The method is applied to the case of the (B) over bar (0)(s) -> J/Psi f(1)(1285) decay, by looking at the resonance production and the mass distribution of K (K) over bar*. |
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Address ![sorted by Address field, descending order (down)](img/sort_desc.gif) |
[Molina, R.; Doring, M.] George Washington Univ, Inst Nucl Studies, 725 21st St NW, Washington, DC 20052 USA, Email: oset@ific.uv.es |
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Publisher |
Amer Physical Soc |
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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 |
2470-0010 |
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Conference |
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Notes |
WOS:000377303000002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2719 |
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Permanent link to this record |
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Author |
Miranda, O.G.; Valle, J.W.F. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Neutrino oscillations and the seesaw origin of neutrino mass |
Type |
Journal Article |
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Year |
2016 |
Publication |
Nuclear Physics B |
Abbreviated Journal |
Nucl. Phys. B |
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Volume |
908 |
Issue |
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Pages |
436-455 |
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Keywords |
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Abstract |
The historical discovery of neutrino oscillations using solar and atmospheric neutrinos, and subsequent accelerator and reactor studies, has brought neutrino physics to the precision era. We note that CP effects in oscillation phenomena could be difficult to extract in the presence of unitarity violation. As a result upcoming dedicated leptonic CP violation studies should take into account the non-unitarity of the lepton mixing matrix. Restricting non-unitarity will shed light on the seesaw scale, and thereby guide us towards the new physics responsible for neutrino mass generation. |
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Address ![sorted by Address field, descending order (down)](img/sort_desc.gif) |
[Miranda, O. G.] IPN, Ctr Invest & Estudios Avanzados, Dept Fis, Apdo Postal 14-740, Mexico City 07000, DF, Mexico, Email: omr@fis.cinvestav.mx |
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Publisher |
Elsevier Science Bv |
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English |
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Edition |
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ISSN |
0550-3213 |
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Conference |
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Notes |
WOS:000377334000028 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2716 |
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Permanent link to this record |