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Towards model-independent exclusion of light Stops

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  • Published: 18 January 2016
  • Volume 2016, article number 102, (2016)
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Towards model-independent exclusion of light Stops
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  • Alexander Belyaev1,2,
  • Verónica Sanz3 &
  • Marc Thomas1,2 

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A preprint version of the article is available at arXiv.

Abstract

Understanding the extent to which experimental searches are sensitive to Light Stops (LST) scenarios is essential to resolve questions about naturalness, electroweak baryo-genesis and Dark Matter. In this paper we characterize the reach on LST scenarios in two ways. We extend experimental searches to cover specific gaps in the LST parameter space, showing for the first time that assuming a single decay channel one can exclude the region of \( {m}_{\tilde{t}}<{m}_{\mathrm{top}} \), which in its turn excludes electroweak baryogenesis in MSSM. Also, we explore the extent to which searches are weakened in a more generic scenario when more than one decay channel takes place, even after their combination. This study highlights the need for a more comprehensive exploration of the LST parameter space.

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Authors and Affiliations

  1. School of Physics and Astronomy, University of Southampton, University Road, Highfield, Southampton, SO17 1BJ, U.K.

    Alexander Belyaev & Marc Thomas

  2. Particle Physics Department, Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxon, OX11 0QX, U.K.

    Alexander Belyaev & Marc Thomas

  3. Department of Physics and Astronomy, University of Sussex, Falmer Campus, Brighton, BN1 9QH, U.K.

    Verónica Sanz

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  1. Alexander Belyaev
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Correspondence to Marc Thomas.

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ArXiv ePrint: 1510.07688

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Belyaev, A., Sanz, V. & Thomas, M. Towards model-independent exclusion of light Stops. J. High Energ. Phys. 2016, 102 (2016). https://doi.org/10.1007/JHEP01(2016)102

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  • Received: 16 November 2015

  • Revised: 04 January 2016

  • Accepted: 05 January 2016

  • Published: 18 January 2016

  • DOI: https://doi.org/10.1007/JHEP01(2016)102

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