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arxiv: hep-ex/9703016 · v1 · pith:EMD5LUP3new · submitted 1997-03-28 · ✦ hep-ex

Bremsstrahlung Suppression due to the LPM and Dielectric Effects in a Variety of Materials

P. L. Anthony , R. Becker-Szendy , P. E. Bosted , M. Cavalli-Sforza , L. P. Keller , L. A. Kelley , S. R. Klein , G. Niemi
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M. L. Perl L. S. Rochester J. L. White: E146 Collaboration
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classification ✦ hep-ex
keywords bremsstrahlungmaterialseffectselectronsobservetargetsvarietyaccuracy
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The cross section for bremsstrahlung from highly relativistic particles is suppressed due to interference caused by multiple scattering in dense media, and due to photon interactions with the electrons in all materials. We present here a detailed study of bremsstrahlung production of 200 keV to 500 MeV photons from 8 and 25 GeV electrons traversing a variety of target materials. For most targets, we observe the expected suppressions to a good accuracy. We observe that finite thickness effects are important for thin targets.

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  1. Prompt photon production in a bremsstrahlung in proton-proton collisions at $\sqrt{\mathbf{s}}$=10 GeV NICA energies

    hep-ph 2026-05 unverdicted novelty 3.0

    Bremsstrahlung contributes 0.03% to prompt photon production in 10 GeV pp collisions, with large polarization effects at high transverse momentum and a studied double-spin asymmetry.