• Reset your password

User account menu

  • Log in
Home
PANDA NEW

Main navigation

  • Home
  • Collaboration
    • Governance rules
    • Boards
      • Collaboration Board
      • Management Board
      • Young Scientist Convent
      • Finance Board
      • Technical Board
      • Theory Advisory Group
      • Physics Committee
      • Publication Committee
      • Speakers Committee
      • Membership Committee
      • Computing Committee
      • Award Committee
    • Contact
    • PhD Prize
    • Theory PhD Prize
    • Services
      • ASICs DB
      • FEMC Production DB
      • PANDA Forum
      • Pandamine
      • PANDA repository
      • PANDA Wiki
      • Storage cluster usage
      • CERN EDMS
    • Links
    • Logos
  • Physics
    • Hadron spectroscopy
    • Hadrons in matter
    • Hypernuclei
    • Nucleon structure
  • Detectors
    • PANDA detector
    • Magnets
    • Tracking
    • Calorimetry
    • Forward
    • Particle ID
    • Target and Beam
  • Documents
    • Publication list

TH-PHD-2014-003

Breadcrumb

  • Home
  • TH-PHD-2014-003

Recent news

Workshop Proton Beams at SIS100

Workshop „Physics Opportunities with Proton Beams at SIS100” was held in Wuppertal

Physicist of the week

Meike Küßner is DPG female physicist of calendar week 30 in 2023!

Endcap travel

Forward Endcap travels to Jülich

+++ Publication list +++
+++ Job Market +++

Subscribe to Recent news

PANDA meetings


25/06-26/06 2024 FEE/DAQ Workshop
04/11-06/11 2024 CM 24/3 at GSI
05/03-07/03 2025 WS at GSI
24/03/2025 16.00 CM 25-ZOOM1
13/05/2025 16.00 CM 25-ZOOM2
16/06-18/06 2025 CM 25/1

Upcoming events

PANDA Collaboration Meeting 25/1
16 June, 2025 - 18 June, 2025
RICH2025 - XII International Workshop on Ring Imaging Cherenkov Detectors
15 September, 2025 - 19 September, 2025

 

FAIR logo

GSI logo


Old website


Simulation of electromagnetic channels for PANDA at FAIR
Binsong MA
TH-PHD-2014-003.pdf (4.21 MB)
Thesis
Phd (PHD)
Physics analysis
Tuesday, September 23, 2014 - 12:00
This PHD work focuses on simulation studies for future measurements with the PANDA detector at FAIR. In particular, I investigated proton antiproton annihilation reactions with an electron-positron pair production which allow to study the structure of nucleons.
One major problem with the studies of such electromagnetic channels is the hadronic background which has cross-sections at least six orders of magnitude larger than the signal, requiring excellent particle identification and good momentum resolution. However the momentum reconstruction for electrons and positrons is degraded due to the emission of Bremsstrahlung photons along their path.
In the first part of this thesis, I studied this problem and developed a method
based on the correction of the momentum of electrons and positrons event by event, using Bremsstrahlung photons detected in the electromagnetic calorimeter. This method, which has been integrated into PANDAroot, the official PANDA reconstruction code, provides a significant improvement of momentum resolution for electrons, and will be exploitable by any measurement with electron-positron pair in the exit channel.
In the second part, I performed a feasibility study of measuring the reaction antiproton p→J/psi π0 using predictions from a model based on pion-nucleon TDAs (Transition Distribution Amplitudes). TDAs are non-perturbative objects that describe the transition between two particles of different nature. For example, pion-nucleon TDAs contain information about the pionic components in the nucleon’s wave function. For this study, I relied on the TDA model to create an event generator, and studied the capability to reject hadronic background. The improvement of the efficiency for the signal due to the Bremsstrahlung correction method was quantified. This study can be used as a basis for a proposal of an experiment with PANDA.
TH-PHD-2014-003: Simulation of electromagnetic channels for PANDA at FAIR

Imprint

Data privacy protection

Powered by Drupal

Copyright © 2025 PANDA collaboration - All rights reserved

Operated by Udo