Results 231 to 240 of about 163,637 (266)

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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Scattering of Protons by Protons

Physical Review, 1953
The data of Worthington, McGruer, and Findley (WMF) on scattering of protons by protons show an apparently real contribution to the cross section arising from scattering in the $p$ state. Results of phase shift analysis of these data are presented in Table I and in Fig. 1.
H. H. Hall, J. L. Powell
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The external proton beams and the proton‐proton experiments

AIP Conference Proceedings, 1980
The ZGS was one of the first accelerators in which extracted primary proton beams and experimental halls were part of the initial design. Special features incorporated into the ring made it possible to permanently position extraction magnets, and there was no need to plunge them as in other machines.
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When Is a Proton Not a Proton?

Chemistry - A European Journal, 1998
In spite of the large number of protonated complexes, their use in catalytic cycles has been little explored. The existing examples suggest that catalytic processes initiated by the protonation of a low-valent metal hold promise for the development of selective, efficient, and atom-economical addition reactions under very mild conditions, if the ...
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Proton-Proton Collisions

2016
This chapter is intended to give an overview of the basics of the description and simulation of proton-proton (pp) collisions. The terminology is introduced in Sect. 4.1. Section 4.2 contains a brief discussion of parton density functions and Sect. 4.3 introduces the basic concepts for the calculation of hadron–hadron cross sections.
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Experiments with 315-Mev Polarized Protons: Proton-Proton and Proton-Neutron Scattering

Physical Review, 1957
The polarization in elastic $p\ensuremath{-}p$ and $p\ensuremath{-}n$ scattering at 315 Mev has been measured as a function of the scattering angle. The maximum polarization observed in each of these interactions is approximately 40 percent. A similar measurement of the polarization in $p\ensuremath{-}p$ scattering at 276 Mev is also reported.
O. Chamberlain, E. Segre, R. D. Tripp, C. Wiegand, T. Ypsilantis   +4 more
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Proton-Proton Bremsstrahlung at 99 MeV

Physical Review Letters, 1968
Abstract The reaction p+p → p+p+γ at 99 MeV has been investigated. The two final-state protons were detected in coincidence at equal polar angles on opposite sides of the beam. Cross sections dσ/dΩ1dΩ2 of 3.77, 5.14, 9.01 and 18.8 μb sr 2 ±5 % were obtained at laboratory angles of 25°, 30°, 35° and 40° respectively.
F. Sannes, J. Trischuk, D.G. Stairs
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On the Comparison of Proton-Proton and Proton-Neutron Interactions

Physical Review, 1937
Breit, G., Stehn, J. R.
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The Scattering of Protons by Protons. III

Physical Review, 1939
Heydenburg, N. P., Hafstad, L. R., Tuve, M. A.   +2 more
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