Physics of the very forward detector region

In the last 10 years we have been involved in detector and physics R&D in the very forward region at ILC, CLIC, and more recently at CEPC. Our current activities include studies of the Luminosity measurement, emphasis on systematic uncertainties and beam tests of the luminometer prototypes. Our past activities comprised electron identification with forward calorimeters, TB simulation with data analysis and the forward calorimetry software integration into DD4HEP. Several publications resulted over the years, as well as numerous contributions to the conferences. Also, 2 PhD thesis have been completed in the group (M. Pandurovic, DESY-THESIS-2011-045; I. Smiljanic, AIDA2020 THESIS, University of Belgrade, 2016). The research is supported through the AIDA2020 and E-JADE projects.

ILD detector R&D with FCAL

 

Layout of the very forward region of the ILD detector of the ILC.

Transverse shower profile of the 2014 Teast Beam data in the luminometer implemented in DD4Hep.

Beam induced effects in the integral luminosity measurements

Bhabha angular losses due to beam-induced effects w.r.t. detector fiducial volume (square) at 250 GeV ILC.

Data-driven correction of Bhabha counting losses induced by beam-beam effects. The method developed in Vinča has been published in JINST 8 (2013) P05008.

Two-photon backgrounds in the luminosity measurment at TeV energies

Selection efficiency for signal and rejection efficiences for backgrounds at 500 GeV and 1 TeV centre-of-mass energies ILC. JINST 8 (2013) P08012

Overall luminosity systematics at ILC. Read more.