Results 301 to 310 of about 1,670,847 (343)
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Il Nuovo Cimento, 1963
The production of YY pairs in pp collisions is shown to be consistent with a peripheral model based on K* exchange, if the SA parity is even. The result is not sensitive to the form of the meson-baryon vertices for comparable values of the coupling constants.
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The production of YY pairs in pp collisions is shown to be consistent with a peripheral model based on K* exchange, if the SA parity is even. The result is not sensitive to the form of the meson-baryon vertices for comparable values of the coupling constants.
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W-pair production viaW-pair fusion
Physical Review D, 1987Using the effective-gauge-boson approximation, we calculate the invariant-mass distribution for the production of W/sup +/W/sup -/ pairs via W/sup +/W/sup -/ fusion at an energy of 40 TeV. All polarizations of initial and final W's are included. The results are compared with an exact calculation of the same process.
, Abbasabadi, , Repko
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Production of Electron-Positron Pairs
Nature, 1935THE production of a pair of positive and negative electrons by two photons was one of the consequences of his theory of the electron first considered by Dirac. This effect is essentially at the basis of all pair production phenomena, and it may be of interest to point out that from the formula for it, recently given by Breit and Wheeler1, we may ...
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Spin correlation in muon-pair production
Il Nuovo Cimento, 1963The correlation of the muon spins in muon pair production by unpolarized photons is calculated in Born approximation. The longitudinal correlation coefficient is found to be sensitive to a cut-off in the muon propagator at 0.1 fermi.
F. Erdas, G. Von Gehlen
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Pair Production in Classical Electrodynamics
Foundations of Physics, 1998One of the most relevant features of quantum field theory is the phenomenon of pair production, the existence of which, first suggested by Dirac, was not even suspected in the older theories. On the other hand Feynman, in the spirit of his spatiotemporal approach to quantum mechanics, showed how a description of pair production could be given within ...
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Physical Review D, 1984
Direct-photon pair production in high-energy hadron collisions is considered. After discussing general aspects of such reactions and giving a brief historical survey of the subject, we present some calculations on the contributions from $q\overline{q}$ and $\mathrm{gg}$ collisions (the latter via the quark box) to the $\ensuremath{\gamma}\ensuremath ...
Carimalo, C. +3 more
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Direct-photon pair production in high-energy hadron collisions is considered. After discussing general aspects of such reactions and giving a brief historical survey of the subject, we present some calculations on the contributions from $q\overline{q}$ and $\mathrm{gg}$ collisions (the latter via the quark box) to the $\ensuremath{\gamma}\ensuremath ...
Carimalo, C. +3 more
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Reviews of Modern Physics, 1969
This paper reviews, analyzes, and integrates the various quantitative results that have been obtained for the process of pair production by photons. Included in this summary is a detailed review of total and differential cross sections for pair production in an atomic and in an electron field, with a critical evaluation of the conditions of validity ...
J. W. MOTZ, HAAKON A. OLSEN, H. W. KOCH
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This paper reviews, analyzes, and integrates the various quantitative results that have been obtained for the process of pair production by photons. Included in this summary is a detailed review of total and differential cross sections for pair production in an atomic and in an electron field, with a critical evaluation of the conditions of validity ...
J. W. MOTZ, HAAKON A. OLSEN, H. W. KOCH
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Journal of Physics G: Nuclear Physics, 1977
The process pi -p to ne+e- is analysed in terms of the polarisation of the virtual photon involved as is normal in pion electroproduction. The PCAC approach to pion photoproduction and electroproduction can then be applied directly to this process.
N Dombey, B J Read
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The process pi -p to ne+e- is analysed in terms of the polarisation of the virtual photon involved as is normal in pion electroproduction. The PCAC approach to pion photoproduction and electroproduction can then be applied directly to this process.
N Dombey, B J Read
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American Journal of Physics, 1999
The subject of strong field pair creation, which has important cosmological implications associated with black hole decay, is studied in the simpler context of strong electric fields. The pair creation rate is calculated by formal methods first given by Schwinger as well as via less forbidding wave function techniques.
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The subject of strong field pair creation, which has important cosmological implications associated with black hole decay, is studied in the simpler context of strong electric fields. The pair creation rate is calculated by formal methods first given by Schwinger as well as via less forbidding wave function techniques.
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Nature, 1936
SOME time ago we described a method1 for calculating rigorously (neglecting screening) the cross–section for production of electron–positron pairs in the field of a nucleus by a beam of γ–rays. This method also gave the energy distribution of the electrons or positrons.
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SOME time ago we described a method1 for calculating rigorously (neglecting screening) the cross–section for production of electron–positron pairs in the field of a nucleus by a beam of γ–rays. This method also gave the energy distribution of the electrons or positrons.
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