Sample records for ESPECTROSCOPIA DE NEUTRONES (neutron spectroscopy)

Sample records 1 - 10 shown.


Yrast studies of Se-80,Se-82 using deep-inelastic reactions

Jones, G. A.; Regan, P. H.; Podolyak, Zs.; Yoshinaga, N.; Higashiyama, K.; De Angelis, G.; Zhang, Y. H.

5 pages, 5 figures.-- PACS nrs.: 21.10.-k; 21.60.Cs; 25.70.Hi; 27.50.+e.-- ISI Article Identifier: 000251327000034. | We report the results of an experiment in which we studied the near-yrast states in selenium isotopes approaching N=50 following their population in multinucleon transfer reactions b...

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Tracking the effects of rigidity percolation down to the liquid state: relaxational dynamics of binary chalcogen melts

Bermejo, Francisco Javier; Cabrillo García, Carlos; Bychkov, E.; Fouquet, P.; Ehlers, G.; Häussler, W.

4 pags. ; 4 figs. | The stochastic dynamics of binary liquids with formula AxB1-x, x=0–0.4 is investigated by neutron spin-echo spectroscopy. These compositions comprise samples of varying chemical connectivity, ranging from twofold-coordinated liquid Se to higher average coordinated As2S3. The para...

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The La-139(n,γ) cross section: Key for the onset of the s-process

Terlizzi, R.; Abbondanno, U.; Aerts, G.; Álvarez, H.; Álvarez-Velarde, H.; Álvarez-Velarde, F.; Andriamonje, S.

15 pages, 9 figures.-- PACS nrs.: 25.40.Lw; 26.20.+f; 27.60.+j; 97.10.Cv.-- ISI Article Identifier: 000245332200071.-- ArXiv pre-print available at: | The nuclear resonance parameters and the capture cross section of the neutron magic isotope La-139 have been mea...

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Study of neutron rich neon isotopes

Tengblad, Olof; García Borge, María José; Johannsen, L.; Jonson, B.; Lindroos, M.; Nilsson, T.; Nyman, G.

5 pages, 4 figures, 2 tables.-- PACS nrs.: 27.30.+t; 21.90.+f; 23.90.+w. | The half-lives and P(n)-values of the neutron rich isotopes Ne-26-29 have been determined. The results are compared to shell-model calculations and good agreement is found except for Ne-29, where the half-life exceeds the pre...

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Structure of Ac-231: Measurements of level half-lives

Boutami, R.; García Borge, María José; Mach, H.; Fraile, Luis M.; Gulda, K.; Aas, A. J.; García Raffi, Luis M.

2 pages, 2 figures.-- PACS nrs.: 21.10.Tg; 23.20.Lv; 27.90.+b; 29.30.Kv. | There is lack of knowledge of the structure of the Ac-231 nucleus located in the upper border of the island of octupole deformation centered around A = 225. We have populated the excited states in Ac-231 by beta-decay from th...

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Projectile Coulomb excitation with fast radioactive beams

Anne, R.; Bazin, D.; Bimbot, R.; García Borge, María José; Corre, J. M.; Dogny, S.; Emling, H.; Guillemaud-Mueller, D.

5 pages, 5 figures, 1 table.-- PACS nrs.: 23.20.Ck; 27.20.+n. | We report a search for γ rays emanating from Coulomb excitation of fast (30-46 MeV/u) radioactive projectiles He-8, Be-11, Be-12, Be-14 interacting with a lead target. These are clearly identified by their Doppler shift. The 320 keV 1/2...

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Invariant-mass spectroscopy of Li-10 and Li-11

Zinser, M.; Humbert, F.; Nilsson, T.; Schwab, W.; Simon, H.; Aumann, T.; García Borge, María José; Chulkov, L. V.

26 pages, 5 tables, 10 figures.-- PACS nrs.: 25.60.+v; 27.20.+n; 25.70.Mn; 25.70.De. | Break-up of secondary Li-11 ion beams (280 MeV/nucleon) on C and Pb targets into Li-9 and neutrons is studied experimentally. Cross sections and neutron multiplicity distributions are obtained, characterizing diff...

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Halo structure of Be-14

Labiche, M.; Orr, N. A.; Marqués, F. M.; Angélique, J. C.; Axelsson, L.; Benoit, B.; Bergmann, U. C.

4 pages, 3 figures.-- PACS nrs.: 27.20.+n, 24.30.Gd, 25.60.Dz, 25.60.Gc. | The two-neutron halo nucleus Be-14 has been investigated in a kinematically complete measurement of the fragments (Be-12 and neutrons) produced in dissociation at 35 MeV/nucleon on C and Pb targets. Two-neutron removal cross ...

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Continuum excitations in He-6

Aumann, T.; Aleksandrov, D.; Axelsson, L.; Baumann, T.; García Borge, María José; Chulkov, L. V.; Cub, J.

11 pages, 2 tables, 6 figures.-- PACS nrs.: 27.20.+n; 25.60.Gc; 25.70.De; 29.30.Hs. | The three-body breakup He-6 --> He-4 + n + n is studied experimentally, using a secondary He-6 ion beam of 240 MeV/nucleon incident on carbon and lead targets. integrated cross sections for one- and two-neutron kno...

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