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- J. C. Anjos, I. M. Pepe, +31 authors E. W. Vaandering
- 2001

A high statistics measurement of the Lambda(+)(c) lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis technique with particular attention to the determination of the systematic uncertainty. The measured value of 204.6 +/- 3.4 (stat) +/- 2.5 (syst) fs from 8034 +/- 122 Lambda(+)(c)-->pK(-)pi(+)… (More)

A parametrization of the three asymptotic conical intersections between the energies of the H3(+) ground state and the first excited singlet state is presented. The influence of an additional, fourth conical intersection between the first and second excited states at the equilateral geometry on the connection between the three conical regions is studied,… (More)

- X Urbain, N de Ruette, +6 authors B Pons
- Physical review letters
- 2013

There is no consensus on the magnitude and shape of the charge transfer cross section in low-energy H+ + H2 collisions, in spite of the fundamental importance of these collisions. Experiments have thus been carried out in the energy range 15≤E≤5000 eV. The measurements invalidate previous recommended data for E≤200 eV and confirm the existence of a local… (More)

- L F Errea, Clara Illescas, +4 authors A Riera
- The Journal of chemical physics
- 2010

H(+)+H(2) collisions are studied by means of a semiclassical approach that explicitly accounts for nuclear rearrangement channels in nonadiabatic electron processes. A set of classical trajectories is used to describe the nuclear motion, while the electronic degrees of freedom are treated quantum mechanically in terms of a three-state expansion of the… (More)

- Int J Mol, Sci, +4 authors A Riera
- 2002

The effect of the anisotropy of the interaction potential on ion-diatom non-adiabatic collisions is analized by considering the influence of the anisotropy on orientation averaged total cross sections for charge transfer in H + +H 2 (X 1 Σ + g) collisions. We discuss the possibility of employing simplified methods such as an isotropic approximation , where… (More)

- A. Sánchez-Hernández, L. Cinquini, +15 authors K. Stenson
- 2000

- Leopoldo Méndez, Deborah Caplow, José Clemente Orozco
- 2008

- Jaime Suárez, L Méndez, I Rabadán
- The journal of physical chemistry letters
- 2015

A quantum-mechanical study of the predissociation of H2O(+) (B̃ (2)B2) is carried out by using wave packet propagations on ab initio potential energy surfaces connected by nonadiabatic couplings. The simulations show that within the first 30 fs 80% of the initial wave packet is transferred from the B̃ (2)B2 to the Ã (2)A1 electronic state through a conical… (More)

- A. Sánchez-Hernández, L. Cinquini, +15 authors K. Stenson
- 2000