The light stop quark with small stop-neutralino difference in the MSSM

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The MSSM can explain electro-weak symmetry breaking if one scalar top quark (stop) is light. In addition, in this framework, the neutralino is a good dark matter candidate and for small stop-neutralino mass differences dm{sub i} = 30 GeV, co-annihilation plays an important role to match the results from WMAP and SDSS for the relic density in the universe. In this scenario, the stops mainly decays into charm and neutralino, making its discovery difficult at hadron colliders due to background and trigger limitations. They present results for the discovery reach of the ILC for a DM candidate as low as ... continued below

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5 pages

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Milstene, C.; Carena, M.; /Fermilab; Freitas, A.; U., /Zurich; Finch, A. et al. December 1, 2005.

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The MSSM can explain electro-weak symmetry breaking if one scalar top quark (stop) is light. In addition, in this framework, the neutralino is a good dark matter candidate and for small stop-neutralino mass differences dm{sub i} = 30 GeV, co-annihilation plays an important role to match the results from WMAP and SDSS for the relic density in the universe. In this scenario, the stops mainly decays into charm and neutralino, making its discovery difficult at hadron colliders due to background and trigger limitations. They present results for the discovery reach of the ILC for a DM candidate as low as 0(5 GeV) based on a realistic experimental simulation. Moreover, the stop parameters could be measured with high precision.

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5 pages

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  • Presented at 2005 International Linear Collider Physics and Detector Workshop and 2nd ILC Accelerator Workshop, Snowmass, Colorado, 14-27 Aug 2005

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  • Report No.: FERMILAB-FN-0781-E
  • Grant Number: AC02-76CH03000
  • DOI: 10.2172/879117 | External Link
  • Office of Scientific & Technical Information Report Number: 879117
  • Archival Resource Key: ark:/67531/metadc878632

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  • December 1, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 29, 2016, 6:31 p.m.

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Milstene, C.; Carena, M.; /Fermilab; Freitas, A.; U., /Zurich; Finch, A. et al. The light stop quark with small stop-neutralino difference in the MSSM, report, December 1, 2005; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc878632/: accessed November 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.