16–19 ott 2012
INFN-LNF
Europe/Rome fuso orario

Search for dark photons at low energy e-gamma collider

17 ott 2012, 18:50
30m
Aula B. Touschek, Bldg 36 (INFN-LNF)

Aula B. Touschek, Bldg 36

INFN-LNF

Via E. Fermi, 40 00044 Frascati Italy

Relatore

Sig. Sergiy Ivashyn (ITP NSC KIPT (Kharkiv))

Descrizione

We study a possibility of neutral pion and dark photon production at a high-luminosity photon-electron collider with the energy of the photon about 20 Mev and the energy of the electron about 1 GeV. The neutral pion production channel is Primakoff-type via the t-channel photon exchange. The dark photon production channel is similar to the timelike Compton scattering on the electron. We developed the Monte Carlo generator and used it to estimate the signal feasibility and to investigate the event distributions affected by a realistic smearing of the photon and electron beams. We estimate the luminosity of the photon-electron collisions required to measure the pion decay width with 1% error and to set a limit on dark photon coupling parameter epsilon for the dark photon mass below 250 MeV competitive with the current and future experiments.

Autore principale

Sig. Sergiy Ivashyn (ITP NSC KIPT (Kharkiv))

Coautore

Dr. Graziano Venanzoni (Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali di Frascati) Dr. Olga Shekhovtsova (Universidad de Valencia - Instituto de Fisica Corpuscular)

Materiali di presentazione

Non sono ancora presenti materiali