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Physics of Particles and Nuclei Letters

, Volume 9, Issue 1, pp 29–46 | Cite as

Scalar top quarks production in polarized photon-photon collisions at ILC

  • A. Bartl
  • W. Majerotto
  • K. Mönig
  • A. N. Skachkova
  • N. B. Skachkov
Physics of Elementary Particles and Atomic Nuclei. Theory
  • 32 Downloads

Abstract

We study pair production of scalar top quarks (stop, \(\tilde t_1\)) in polarized photon-photon collisions with the subsequent decay of the top squarks into b quarks and charginos \(\tilde t_1 \to b\tilde \chi _1^ \pm\). We simulate this process by using PYTHIA6.4 for an electron beam energy \(2E_{beam}^e = \sqrt {s_{ee} } = 1000 GeV\). The energy spectrum of back-scattered photons is generated by CIRCE2 program. A set of criteria for physical variables is proposed which leads to a 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, provided that the neutralino mass is known.

Keywords

Invariant Mass Pair Production Nucleus Letter Stop Mass Quark Level 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • A. Bartl
    • 1
  • W. Majerotto
    • 2
  • K. Mönig
    • 3
  • A. N. Skachkova
    • 2
  • N. B. Skachkov
    • 4
  1. 1.Faculty of PhysicsUniversity of ViennaViennaAustria
  2. 2.Institute for High Energy Physics (HEPHY Vienna)ViennaAustria
  3. 3.DESYZeuthenGermany
  4. 4.Joint Institute for Nuclear ResearchDubnaRussia

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