منابع مشابه
Ionization and pair creation in relativistic heavy-ion collisions.
Ionization, pair creation, and electron excitations in relativistic heavy-ion collisions are investigated in the framework of the coupled-channel formalisrn. Collisions between heavy projectiles and pb8*+ are considered for various bombarding energies in the region E =500 up to 2000 MeV/u. Useful symmetry relations for the matrix elements are derived and the influence of gauge transformations o...
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Dileptons produced in central heavy ion collisions are investigated as one of the possible signal for the formation of the quark gluon plasma. The electromagnetic production of these leptons mainly in peripheral collisions is the dominant background process and therefore has to be studied in detail. Furthermore the production of muon pairs has been proposed as a possible way to measure the beam...
متن کاملLepton pair production in heavy ion collisions and hadronic phenomenology
We first review the calculations of low invariant mass dilepton production in relativistic heavy ion collisions, using effective hadronic Lagrangians. We go through some of the theoretical techniques used in this kinematical region and we consider some of the appropriate experimental measurements. Moving up to the intermediate invariant mass region, we point out some of the uncertainties that s...
متن کاملAdiabatic Pair Creation
We give here the proof that pair creation in a time dependent potentials is possible. It happens with probability one if the potential changes adiabatically in time and becomes overcritical, that is when an eigenvalue enters the upper spectral continuum. The potential may be assumed to be zero at large negative and positive times. The rigorous treatment of this effect has been lacking since the...
متن کاملOn Adiabatic Pair Creation
We give here the proof that pair creation arises from the Dirac equation with an external time dependent potential. Pair creation happens with probability one if the potential changes adiabatically in time and becomes overcritical, that is when an eigenvalue curve (as function of time) bridges the gap between the negative and positive spectral continuum. The potential may be assumed to be zero ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2016
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2016.01.064