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Now showing items 61-80 of 217
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Mean field study of structural changes in Pt isotopes with the Gogny interaction
Rodríguez Guzmán, R.; Sarriguren, P.; Robledo, L. M.; García Ramos, José Enrique
(American Physical Society, 2010-02)
The evolution of the nuclear shapes along the triaxial landscape is studied in the Pt isotopic chain using the selfconsistent Hartree-Fock-Bogoliubov approximation based on the Gogny interaction. In addition to the ... -
MATS and LaSpec: High-precision experiments using ion traps and lasers at FAIR
Rodríguez Rubiales, Daniel; Blaum, K.; Nörtershäuser, W.; García Ramos, José Enrique (Springer, 2010-05)
Nuclear ground state properties including mass, charge radii, spins and moments can be determined by applying atomic physics techniques such as Penning-trap based mass spectrometry and laser spectroscopy. The MATS and ... -
Relationship between X(5)-models and the interacting boson model
Barea, José; Arias Carrasco, José Miguel; García Ramos, José Enrique (American Physical Society, 2010-08-19)
The connections between the X(5)-models (the original X(5) using an infinite square well, X(5)- 8, X(5)- 6, X(5)- 4, and X(5)- 2), based on particular solutions of the geometrical Bohr Hamiltonian with harmonic potential ... -
Spectroscopy of proton-unbound nuclei by tracking their decay products in-flight: One- and two-proton decays of (15)F, (16)Ne, and (19)Na
Mukha, I.; Sümmerer, K.; Acosta Sánchez, Luis Armando; Álvarez, M. A. G.; García Ramos, José Enrique (American Physical Society, 2010-11-29)
A powerful method of investigating proton-unbound nuclear states by tracking their decay prod- ucts in °ight is discussed in details. To verify the method, four known levels in 15F, 16Ne, and 19Na were investigated by ... -
On the leading OPE corrections to the ghost-gluon vertex and the Taylor theorem
Boucaud, Ph.; Dudal, D.; Leroy, J. P.; Pène, O.; Rodríguez Quintero, José (Springer Verlag, 2011)
This brief note is devoted to a study of genuine non-perturbative corrections to the Landau gauge ghost-gluon vertex in terms of the non-vanishing dimension-two gluon condensate. We prove these corrections to give account ... -
Structure effects in the reactions 9,10,11Be+64Zn at the Coulomb barrier
Scuderi, V.; Di Pietro, A.; Acosta Sánchez, Luis Armando; Amorini, F.; Borge, M. J. G.; Figuera, P.; Fisichella, M.; Fraile, L. M.; Gómez Camacho, Joaquín; Jeppesen, H.; Lattuada, M.; Martel Bravo, Ismael; Milin, M.; Musumarra, A.; Papa, M.; Pellegriti, M. G.; Pérez Bernal, Francisco; Raabe, R.; Randisi, G.; Rizzo, F.; Santonocito, D.; Scalia, G.; Torresi, D.; Vidal, A. M.; Zadro, M.; Tengblad, Olof (IOP Publishing, 2011)
Elastic scattering and direct reactions have been studied for the collisions induced by the three Beryllium isotopes 9,10,11Be, on a medium mass 64Zn target at energies around the Coulomb barrier. The elastic scattering ... -
Evidence of strong effects of the 11Be halo structure on reaction processes at energies around the Coulomb barrier
Di Pietro, A.; Amorini, F.; Fisichella, M.; Lattuada, M.; Musumarra, A.; Papa, M.; Pellegriti, M. G.; Randisi, G.; Rizzo, F.; Santonocito, D.; Scalia, G.; Scuderi, V.; Strano, E.; Torresi, D.; Acosta Sánchez, Luis Armando; Martel Bravo, Ismael; Pérez Bernal, Francisco; Borge, M. J. G.; Maira Vidal, A.; Tengblad, Olof; Fraile, L. M.; Jeppesen, H.; Voulot, D.; Wenander, F.; Gómez Camacho, Joaquín; Milin, M.; Raabe, R.; Zadro, M. (IOP Publishing, 2011)
The collision induced by the three Beryllium isotopes, 9;10;11Be, on 64Zn target were investigated at Ec:m: 1.4 the Coulomb barrier. Elastic scattering angular distributions were measured for the 9;10Be collisions ... -
Nuclear shape coexistence : a study of the even-even Hg isotopes using the interacting boson model with configuration mixing
García Ramos, José Enrique; Heyde, K. (American Institute of Physics, 2011)
Background: The Po, Pb, Hg, and Pt region is known for the presence of coexisting structures that correspond to different particle-hole configurations in the Shell Model language or equivalently to nuclear shapes with ... -
Novel results from an algebraic approach to molecular bending dynamics
Pérez Bernal, Francisco; Álvarez Bajo, Osiris; Arias Carrasco, José Miguel; Carvajal Zaera, Miguel; García Ramos, José Enrique; Larese, Danielle; Pérez Fernández, Pedro (Institute of Physics, 2011)
We present a brief review of research topics of current interest that depend on an algebraic approach to molecular bending dynamics. This approach is based on a u(3) spectrum generating algebra. In particular, we briefly ... -
Searches for lepton flavour violation at a linear collider
Carquín, E.; Ellis, J.; Gómez Santamaría, Mario Emilio; Lola, S. (Springer Verlag, 2011)
We investigate the prospects for detection of lepton flavour violation in spar-ticle production and decays at a Linear Collider (LC), in models guided by neutrino os-cillation data. We consider both slepton pair production ... -
Renormalization of quark propagators from twisted-mass lattice QCD at N-f=2
Blossier, B.; Boucaud, Ph.; Brinet, M.; Soto Borrero, Feliciano Carlos de; Liu, Z.; Morenas, V.; Pène, O.; Petrov, K.; Rodríguez Quintero, José (American Physical Society, 2011)
We present results concerning the nonperturbative evaluation of the renormalization constant for the quark field, Z(q), from lattice simulations with twisted-mass quarks and three values of the lattice spacing. We use the ... -
Formalism and upper limits for spin-dependent cross sections in dark matter elastic scattering with nuclei
Cannoni, Mirco (American Physical Society, 2011)
We revise the spin-dependent neutralino-nucleus elastic scattering comparing the formalisms and approximations found in literature for the momentum transfer dependent structure functions. We argue that one of the normalized ... -
SDSS J162520.29+120308.7 – a new SU Ursae Majoris star in the period gap
Olech, A.; Miguel Agustino, Enrique de; Otulakowska-Hypka, M.; Thorstensen, J. R.; Rutkowski, A.; Novak, R.; Masi, G.; Richmond, M.; Staels, B.; Lowther, S.; Stein, W.; Ak, T.; Boyd, David; Koff, Robert; Patterson, Joseph; Eker, Z. (European Southern Observatory, 2011)
We report results of an extensive world-wide observing campaign devoted to the recently discovered dwarf nova SDSS J162520.29+120308.7 (SDSS J1625). The data were obtained during the July 2010 eruption of the star and in ... -
Elastic scattering and α-particle production in 6He + 208Pb collisions at 22 MeV
Acosta Sánchez, Luis Armando; Sánchez Benítez, Ángel Miguel; Gómez Santamaría, Mario Emilio; Martel Bravo, Ismael; Pérez Bernal, Francisco; Pizarro, F.; Rodríguez Quintero, José; Rusek, K.; Álvarez, M. A. G.; Andrés, M. V.; Espino, José Manuel; Fernández García, J. P.; Gómez Camacho, Joaquín; Moro, A. M.; Angulo, C.; Cabrera Caño, Jesús; Casarejos, E.; Demaret, P.; Borge, M. J. G.; Escrig, D.; Tengblad, Olof; Cherubini, S.; Figuera, P.; Gulino, Marisa; Freer, M.; Metelko, C.; Ziman, V.; Raabe, R.; Mukha, I.; Smirnov, D.; Kakuee, O. R.; Rahighi, J. (American Physical Society, 2011)
Experimental results of the elastic scattering of 6He on 208Pb at ELAB = 22 MeV, measured at the CRC facility (Louvain-la-Neuve, Belgium), are presented, including results on the 4He production channel. These data were taken ... -
Dynamical probes of pairing correlations: two-particle transfer and two-particle break-up reactions
Inci, Ilyas; Pérez Bernal, Francisco; Vitturi, Andrea (IOP Publishing, 2011)
We investigate the role played by pairing correlations in two typical classes of nuclear reactions specifically involving pairs of particles: two-particle transfer reactions, where a pair of nucleons is exchanged between ... -
Reactions induced by 11Be beam at Rex-Isolde
Di Pietro, A.; Amorini, F.; Figuera, P.; Fisichella, M.; Lattuada, M.; Musumarra, A.; Papa, M.; Pellegriti, M.; Randisi, G.; Rizzo, F.; Santonocito, D.; Scalia, G.; Scuderi, V.; Strano, E.; Torresi, D.; Acosta Sánchez, Luis Armando; Martel Bravo, Ismael; Pérez Bernal, Francisco; Borge, M. J. G.; Maira Vidal, A.; Tengblad, Olof; Fraile, L. M.; Jeppesen, H.; Voulot, D.; Wenander, F.; Gómez Camacho, Joaquín; Milin, M.; Raabe, R.; Zadro, M. (EDP Sciences, 2011)
The collision induced by the three Beryllium isotopes, 9,10,11Be, on a 64Zn target were investigated at Ec.m. ≈ 1.4 the Coulomb barrier. The experiments with the radioactive 10,11Be beams were performed at the Rex-Isolde ... -
On the massive gluon propagator, the PT-BFM scheme and the low-momentum behaviour of decoupling and scaling DSE solutions
Rodríguez Quintero, José (Springer Verlag, 2011)
We study the low-momentum behaviour of Yang-Mills propagators obtained from Landau-gauge Dyson-Schwinger equations (DSE) in the PT-BFM scheme. We compare the ghost propagator numerical results with the analytical ones ... -
Exactly solvable pairing Hamiltonian for heavy nuclei
(American Physical Society, 2011)We present a new exactly solvable Hamiltonian with a separable pairing interaction and nondegenerate single-particle energies. It is derived from the hyperbolic family of Richardson-Gaudin models and possesses two free ... -
Scheme for the extraction of WIMP-nucleon scattering cross sections from total event rates
Cannoni, Mirco; Vergados, J. D.; Gómez Santamaría, Mario Emilio (American Physical Society, 2011)
We propose a scheme that allows to analytically determine the three elementary cross sections and connect the solutions to the relative sign between the proton and the neutron spin scattering amplitudes once the measurements ...
