Scalar Bremsstrahlung in Gravity-Mediated Ultrarelativistic Collisionsстатья
Статья опубликована в высокорейтинговом журнале
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:[arXiv:1106.3509]
Classical bremsstrahlung of a massless scalar field Φ is studied in gravity
mediated ultra-relativistic collisions with impact parameter b of two massive point particles
in the presence of d non-compact or toroidal extra dimensions. The spectral and angular
distribution of the scalar radiation are analyzed, while the total emitted Φ−energy is
found to be strongly enhanced by a d−dependent power of the Lorentz factor. The direct
radiation amplitude from the accelerated particles is shown to interfere destructively (in
the first two leading ultra-relativistic orders) with the one due to the Φ − Φ − graviton
interaction.