Results 271 to 280 of about 227,563 (317)

Proton–proton correlations observed in two-proton radioactivity of 94Ag

Nature, 2006
The stability and spontaneous decay of naturally occurring atomic nuclei have been much studied ever since Becquerel discovered natural radioactivity in 1896. In 1960, proton-rich nuclei with an odd or an even atomic number Z were predicted to decay through one- and two-proton radioactivity, respectively.
Ivan Mukha, Ernst Roeckl, Leonid Batist, Andrey Blazhev, Joachim Döring, Hubert Grawe, Leonid Grigorenko, Mark Huyse, Zenon Janas, Reinhard Kirchner, LA COMMARA, MARCO, Chiara Mazzocchi, Sam L. Tabor, Piet Van Duppen   +13 more
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Proton–Proton and Proton–Antiproton Colliders

Reviews of Accelerator Science and Technology, 2014
In the last five decades, proton–proton and proton–antiproton colliders have been the most powerful tools for high energy physics investigations. They have also deeply catalyzed innovation in accelerator physics and technology. Among the large number of proposed colliders, only four have really succeeded in becoming operational: the ISR, the SppbarS ...
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Proton Migration and Tautomerism in Protonated Triglycine

Journal of the American Chemical Society, 2001
Proton migration in protonated glycylglycylglycine (GGG) has been investigated by using density functional theory at the B3LYP/6-31++G(d,p) level of theory. On the protonated GGG energy hypersurface 19 critical points have been characterized, 11 as minima and 8 as first-order saddle points.
Rodriquez, CF, Cunje, A, Shoeib, T, Chu, IK, Hopkinson, AC, Siu, KWM   +5 more
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The scattering of protons by protons and the meson field of the proton

Physica, 1948
Abstract New calculations are made on the scattering of protons by protons with several values of the potential energy of the proton, this energy being assumed to be the meson potential. The results of these calculations are compared with the available experimental material.
J.K Lubański, C De Jager
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The Scattering of Protons by Protons

Physical Review, 1936
Our measurements of proton-proton scattering during 1936 established the existence of large nuclear forces between protons at close distances, in addition to the usual Coulomb forces. These nuclear forces give rise to scattering in excess of the Coulomb prediction, appreciable at 700 kilovolts and very marked at 900 kv. In the energy region between 200
M. A. Tuve, N. P. Heydenburg, L. R. Hafstad   +2 more
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Proton-proton bremsstrahlung

AIP Conference Proceedings, 1978
A field theoretic calculation of ppγ is presented. Strong interactions are taken into account to second order. Apart form the contribution of OBE external exmission, the contributions of the ω‐radiative‐decay process and Δ excitation are calculated.
Adam Szyjewicz, A. N. Kamal
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Proton-proton bremsstrahlung with polarized protons

2008
The asymmetry in proton-proton bremsstrahlung is given for a variety of kinematic conditions in the soft photon approximation. It is argued that the asymmetry may be more sensitive to the unknown higher-order terms than the cross section and is shown that several models giving similar cross sections give quite different asymmetries, which could thus be
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Protonated Heme

Chemistry – A European Journal, 2007
AbstractThe ions formally corresponding to protonated heme [FeII–hemeH]+ have been obtained by collision‐induced dissociation from the electrospray ionization of microperoxidase (MP11) and their gas‐phase chemistry has been studied by FTICR mass spectrometry.
CHIAVARINO, Barbara, CRESTONI, Maria Elisa, FORNARINI, Simonetta, Carme Rovira   +3 more
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QCD in High-Energy Proton-Proton and Proton-Antiproton Collisions

1985
The experimental and theoretical investigation of nucleon-nucleon collisions at high energies allows to explore the structure of the nucleon by large momentum transfer (deep-inelastic) processes. In these lectures the structure of the nucleon from momentum scales Q > 1 GeV/c (
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The Scattering of Protons by Protons

Physical Review, 1939
The cross section for scattering of protons by protons has been measured at angles from 15\ifmmode^\circ\else\textdegree\fi{} to 45\ifmmode^\circ\else\textdegree\fi{} for protons of energies 860, 1200, 1390, 2105 and 2392 kev. Observed scattering cross sections at 15\ifmmode^\circ\else\textdegree\fi{} are close to Mott values for all energies.
R. G. Herb, D. W. Kerst, D. B. Parkinson, G. J. Plain   +3 more
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