Zobrazeno 1 - 10
of 452
pro vyhledávání: '"Pires, R. A."'
Publikováno v:
Phys. Rev. Lett. 125, 104301 (2020)
In a bearing state, touching spheres (disks in two dimensions) roll on each other without slip. Here we frustrate a system of touching spheres by imposing two different bearing states on opposite sides and search for the configurations of lowest ener
Externí odkaz:
http://arxiv.org/abs/2009.01295
Autor:
Godos D., Acosta L., Fernández-García J. P., O’Malley P., Sánchez-Benítez A. M., Di Pietro A., Tumino A., Vicente A., Boomershine C., Dembski C., Fougères C., Jones C., Bardayan D., Galaviz D., Aguilera E., Afonso F., Barba F. G., Rivero F., Mulcahy G., Casal J., Morales Rivera J. C., Gómez-Camacho J., Arias J. M., Ruffino J., Lee K., Couder M., La Commara M., Mazzocco M., Rodríguez-Gallardo M., Figuera P., Teubig P., Pires R., Zite R., Coil S., Bailey T., von Seeger W.
Publikováno v:
EPJ Web of Conferences, Vol 304, p 02003 (2024)
In this work, we report the measurement of elastic and Coulomb break-up channels in 6He+208Pb collisions at Elab = 19.3 MeV, close to the Coulomb barrier of this system ∼ 19 MeV. In the context of the astrophysical r-process, the reaction 4He(2n,γ
Externí odkaz:
https://doaj.org/article/3532b0db55564f8bbcadc3e4cb9b802c
Autor:
Martins, J.A., Guerra, R., Pires, R., Antunes, M.D., Panagopoulos, T., Brázio, A., Afonso, A.M., Silva, L., Lucas, M.R., Cavaco, A.M.
Publikováno v:
In Computers and Electronics in Agriculture June 2022 197
Publikováno v:
Phys. Rev. E 96, 052123 (2017)
We investigate the properties of a two-state sandpile model subjected to a confining potential in two dimensions. From the microdynamical description, we derive a diffusion equation, and find a stationary solution for the case of a parabolic confinin
Externí odkaz:
http://arxiv.org/abs/1706.03853
Akademický článek
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Autor:
Ulmanis, J., Häfner, S., Pires, R., Werner, F., Petrov, D. S., Kuhnle, E. D., Weidemüller, M.
Publikováno v:
Phys. Rev. A 93, 022707 (2016)
We study Efimov resonances via three-body loss in an ultracold two-component gas of fermionic $^6$Li and bosonic $^{133}$Cs atoms close to a Feshbach resonance at 843~G, extending results reported previously [Pires \textit{et al.}, Phys. Rev. Lett. 1
Externí odkaz:
http://arxiv.org/abs/1509.05585
Publikováno v:
New J. Phys. 17, 055009 (2015)
We study the interspecies scattering properties of ultracold Li-Cs mixtures in their two energetically lowest spin channels in the magnetic field range between 800 G and 1000 G. Close to two broad Feshbach resonances we create weakly bound LiCs dimer
Externí odkaz:
http://arxiv.org/abs/1501.04799
We investigate the behavior of a two-state sandpile model subjected to a confining potential in one and two dimensions. From the microdynamical description of this simple model with its intrinsic exclusion mechanism, it is possible to derive a contin
Externí odkaz:
http://arxiv.org/abs/1404.0632
We observe two consecutive heteronuclear Efimov resonances in an ultracold Li-Cs mixture by measuring three-body loss coefficients as a function of magnetic field near a Feshbach resonance. The first resonance is detected at a scattering length of $a
Externí odkaz:
http://arxiv.org/abs/1403.7246
Publikováno v:
Phys. Rev. A 87, 010701 (2013)
We report on the observation of nineteen interspecies Feshbach resonances in an optically trapped ultracold Bose-Fermi mixture of ^{133}Cs and ^{6}Li in the two energetically lowest spin states. We assign the resonances to s- and p-wave molecular cha
Externí odkaz:
http://arxiv.org/abs/1211.2139