نتایج جستجو برای: shell sections

تعداد نتایج: 143387  

Journal: :Monthly Notices of the Royal Astronomical Society 2000

Journal: :The journal of physical chemistry. A 2015
Niyazi Bulut François Lique Octavio Roncero

The exchange and inelastic state-to-state cross sections for the OH(+) + H collisions are computed from wave packet calculations using the doublet and quartet ground electronic potential energy surface (PES) correlating to the open shell reactants, for collision energies in the range of 1 meV to 0.7 eV. The doublet PES presents a deep insertion well, of ≈6 eV, but the exchange reaction has a ra...

2015
M. Schmid S. Tsakanikas G. Mangalgiri P. Andrae M. Song G. Yin W. Riedel P. Manley

Efficient light management in optoelectronic devices requires nanosystems where high optical qualities coincide with suitable device integration. The requirement of chemical and electrical passivation for integrating nanostrutures in e.g. thin film solar cells points towards the use of insulating and stable dielectric material, which however has to provide high scattering and near-fields as wel...

Journal: :Physical review. C, Nuclear physics 1995
Engel Ressell Towner Ormand

We calculate spin-dependent cross sections for the scattering from mica of hypothetical weakly interacting dark-matter particles such as neutralinos. The most abundant odd-A isotopes in mica, 27 Al and 39 K, require different shell-model treatments. The calculated cross sections will allow the interpretation of ongoing experiments that look for tracks due to the interaction of dark-matter parti...

1998
G. Q. Li C. M. Ko W. S. Chung

Kaon production cross sections in nucleon-nucleon, nucleon-delta and delta-delta interactions are studied in a boson exchange model. For the latter two interactions, the exchanged pion can be on-mass shell, only contributions due to a virtual pion are included via the Peierls method by taking into account the finite delta width. With these cross sections and also those for pion-baryon interacti...

1997
W. S. Chung

Kaon production cross sections in nucleon-nucleon, nucleon-delta and delta-delta interactions are studied in a boson exchange model. For the latter two interactions, the exchanged pion can be on-mass shell, only contributions due to a virtual pion are included via the Peierls method by taking into account the finite delta width. With these cross sections and also those for pion-baryon interacti...

1970
D. M. Ritson

. With preliminary information from colliding beams relative to the coupling of photons with 7'high massn hadron states, we have extended the 1960 Drell model for photons interacting with nucleons, to estimate off the mass-shell photon cross sections. Based on kinematic considerations as to the domain in which the propagator of the virtual intermediate particle is large, one can predict cross s...

2010
A. I. Mikhailov A. V. Nefiodov

The single ionization of inner-shell bound electrons by lepton impact is a fundamental atomic process of particular interest. Recently, essential progress has been achieved in fragmentation experiments due to developments in many-particle imaging techniques, so-called reaction microscopes [1]. The measurements of the multiply differential cross sections become now feasible. We have deduced the ...

Journal: :Physical review. A, General physics 1987
Mehler Müller Greiner Soff

We present calculations for the impact-parameter dependence of K-shell ionization rates in p-Cu and in p-Ag collisions at various projectile energies. We show that the effect of the attractive Coulomb potential on the Rutherford trajectory and the antibinding effect caused by the negative charge of the antiproton result in a considerable increase of the ionization probability. Total ionization ...

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