Comparison with experimental data of different theoretical approaches to high-energy electron bremsstrahlung including quantum coherence effects

Autor(es)

Mangiarotti, A. ^[1] ; Sona, P. ^[2] ; Uggerhoj, I, U.

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Fis, Rua Matao 1371, BR-05508090 Sao Paulo - Brazil

^[2] Ist Nazl Fis Nucl, Sez Firenze, Polo Sci, Via G Sansone 1, I-50019 Sesto Fiorentino - Italy

• Tipo de documento: Artigo Científico
• Fonte: Physical Review D; v. 104, n. 9 NOV 1 2021.
• Citações Web of Science: 0

Resumo

The basic expressions for the differential nuclear bremsstrahlung cross section at high electron energy, as derived under different theoretical approaches and approximations to quantum coherence effects, are compared. The Baier-Katkov treatment is reformulated to allow introduction of the same value of the radiation length in all calculations. A dedicated Monte Carlo code is employed for obtaining photon energy spectra in the framework of the Baier-Katkov approach taking into account multiphoton emission, attenuation by pair production, and pile-up with photons from the background. The results of Monte Carlo simulations for both the Migdal and Baier-Katkov descriptions are compared to all available data that show the Landau-Pomeranchuk-Migdal suppression. The issue of the sensitivity of the experiments to the difference of the two approaches is investigated. (AU)

• Processo FAPESP: 16/13116-5 - Medidas sistemáticas do espalhamento múltiplo de elétrons e prótons com energias até 5 MEV
• Beneficiário: Alessio Mangiarotti
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 13/15634-5 - Estudo das propriedades do bremsstrahlung na faixa de energia de alguns MeV
• Beneficiário: Marcos Nogueira Martins
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisador Visitante - Internacional