On pair production of scalar top quarks in e + e − collisions at ILC and a possibility of their mass reconstruction

Author(s)
Alfred Bartl, Walter Majerotto, K Mönig, Anna N Skachkova, N B Skachkov
Abstract

We study pair production of scalar top quarks in e+e- collisions with the subsequent decay of the top squarks into b-quarks and charginos. We simulate this process by using PYTHIA6.4 for the beam energy 2Ebeam = 350, 400, 500, 800, 1000 GeV. A set of criteria for physical variables is proposed, which provides good separation of stop signal events from top quark pair production being the main background. These criteria allow us to reconstruct the mass of the top squark with an integrared luminosity of 1000 1/fb provided that the neutralino mass is known.

Organisation(s)
Particle Physics
External organisation(s)
Österreichische Akademie der Wissenschaften (ÖAW), Deutsches Elektronen-Synchrotron DESY, Joint Institute for Nuclear Research
Journal
Physics of Particles and Nuclei Letters
Volume
6
Pages
181-189
No. of pages
9
ISSN
1547-4771
DOI
https://doi.org/10.1134/S1547477109030017
Publication date
2009
Peer reviewed
Yes
Austrian Fields of Science 2012
1030 Physics, Astronomy
Portal url
https://ucrisportal.univie.ac.at/en/publications/on-pair-production-of-scalar-top-quarks-in-e--e--collisions-at-ilc-and-a-possibility-of-their-mass-reconstruction(ea837232-0003-4222-bf47-f9bb8b10668b).html