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Browsing Physics by Issue Date
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Bubin, Sergiy; Varga, Kalman
(2011)
Variational calculations of the ground state of positronium hydride (HPs) are reported, including various expectation values, electron-positron annihilation rates, and leading relativistic corrections to the total and ...
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Bubin, Sergiy; Stanke, Monika; Adamowicz, Ludwik
(2011)
All 18 bound pure vibrational levels of the HD molecule have been calculated within the framework that does not assume the Born-Oppenheimer (BO) approximation. The nonrelativistic energies of the states have been corrected ...
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Beznosko, Dmitriy
(2011)
The T2K experiment observes indications of ! e appearance in data accumulated with
1:43 1020 protons on target. Six events pass all selection criteria at the far detector. In a three-
avor neutrino oscillation ...
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Beznosko, Dmitriy
(2011)
The T2K experiment is a long-baseline neutrino oscillation experiment. Its main goal is to measure the last unknown lepton
sector mixing angle 13 by observing e appearance in a beam. It also aims to make a precision ...
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Sharkey, Keeper L.; Bubin, Sergiy; Adamowicz, Ludwik
(2011)
Very accurate finite-nuclear-mass variational nonrelativistic calculations are performed for the lowest five
1D states (1s2 2p2, 1s2 2s1 3d1, 1s2 2s1 4d1, 1s2 2s1 5d1, and 1s2 2s1 6d1) of the beryllium atom (9Be). The
wave ...
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Bubin, Sergiy; Varga, Kálmán
(2011)
The dynamics of hydrogen desorption from H-terminated silicon surface clusters has been simulated in the framework of real space time-dependent density functional theory complemented with molecular dynamics for ions. It ...
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Driscoll, Joseph A.; Cook, Brandon; Bubin, Sergiy; Varga, Kalman
(2011)
A real-space, real-time implementation of time-dependent density functional theory is used to study
electron field emission from nanostructures. Carbon nanotubes and graphene nanoribbons are used as
model systems. The ...
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Sharkey, Keeper L.; Bubin, Sergiy; Adamowicz, Ludwik
(2011)
Very accurate variational nonrelativistic calculations are performed for the five lowest Rydberg 2D states
(1s2nd1, n = 3, . . . ,7) of the lithium atom (7Li). The finite-nuclear-mass approach is employed and the ...
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Joshi, Pankaj S.; Malafarina, D.
(2011-01-11)
We consider here the classic scenario given by Oppenheimer, Snyder, and Datt, for the gravitational collapse of a massive matter cloud, and examine its stability under the introduction of small tangential stresses. We show, ...
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Patil, Mandar; Joshi, Pankaj S.; Malafarina, D.
(2011-02-14)
We generalize here our earlier results on particle acceleration by naked singularities. We showed recently [1] that the naked singularities that form due to gravitational collapse of massive stars provide a suitable ...
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Malafarina, D.; Joshi, Pankaj S.
(2011-05-06)
Using the general formalism for spherical gravitational collapse developed in [1], we investigate here the final fate of a spherical distribution of a matter cloud, where radial pressures vanish but tangential pressures ...
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Malafarina, D.; Joshi, Pankaj S.
(2011-06-19)
It is known now that a typical gravitational collapse in general relativity, evolving from regular initial data and under physically reasonable conditions would end in either a black hole or a naked singularity final state. ...
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Joshi, Pankaj S.; Narayan, Ramesh; Malafarina, D.
(2011-11-18)
We develop here a new procedure within Einstein’s theory of gravity to generate equilibrium configurations that result as the final state of gravitational collapse from regular initial conditions. As a simplification, we ...
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Bubin, Sergiy; Adamowicz, Ludwik
(2012)
Benchmark variational calculations are performed for the six lowest states of the 1Po 1s22snp state series of the 9Be atom. The wave functions of the states are expanded in terms of all-particle, explicitly correlated ...
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Mandilara, Aikaterini; Cerf, N. J.
(2012)
We rederive the Schr¨odinger-Robertson uncertainty principle for the position and momentum of a quantum
particle. Our derivation does not directly employ commutation relations, but works by reduction to an eigenvalue
problem ...
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Beznosko, Dmitriy
(2012)
The Pi-Zero detector (PØD) is one of the subdetectors that makes up the off-axis near detector for
the Tokai-to-Kamioka (T2K) long baseline neutrino experiment. The primary goal for the PØD
is to measure the relevant ...
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Bubin, Sergiy; Atkinson, Mackenzie; Varga, Kalman
(2012)
Field ionization and Coulomb explosion of small hydrocarbon molecules driven by intense laser pulses are studied in a combined theoretical and experimental framework. The spectra of ejected protons calculated by the ...
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Bubin, Sergiy; Adamowicz, Ludwik
(2012)
Accurate quantum-mechanical nonrelativistic variational calculations are performed for the nine lowest members of the 2Po Rydberg series (1s2np1, n = 2, . . . , 10) of the lithium atom. The effect of the finite nuclear ...
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Beznosko, Dmitriy
(2012)
The Tokai-to-Kamioka (T2K) experiment studies neutrino oscillations using an o -axis muon
neutrino beam with a peak energy of about 0.6 GeV that originates at the J-PARC accelerator
facility. Interactions of the neutrinos ...
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Beznosko, Dmitriy
(2012)
We report a measurement of muon-neutrino disappearance in the T2K experiment. The 295-km muon-neutrino beam from Tokai to Kamioka is the first implementation of the off-axis technique in a long-baseline neutrino oscillation ...