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Discriminating minimal SUGRA and minimal gauge mediation models at the early LHC

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Abstract

Among various supersymmetric (SUSY) standard models, the gravity mediation model with a neutralino LSP and the gauge mediation model with a very light gravitino are attractive from the cosmological view point. These models have different scales of SUSY breaking and their underlying physics in high energy is quite different. However, if the sparticles’ decay into the gravitino is prompt in the latter case, their collider signatures can be similar: multiple jets and missing transverse momentum. In this paper, we study the discrimination between these models in minimal cases at the LHC based on the method using the significance variables in several different modes and show the discrimination is possible at a very early stage after the discovery.

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Author information

Authors and Affiliations

  1. Department of Physics, University of Tokyo, Tokyo, 113-0033, Japan

    Shoji Asai & Eita Nakamura

  2. Department of Physics, University of California, Berkeley, CA, 94720, USA

    Satoshi Shirai

  3. Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA

    Satoshi Shirai

Authors
  1. Shoji Asai
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  2. Eita Nakamura
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  3. Satoshi Shirai
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Corresponding author

Correspondence to Eita Nakamura.

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ArXiv ePrint: 1202.3584

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Asai, S., Nakamura, E. & Shirai, S. Discriminating minimal SUGRA and minimal gauge mediation models at the early LHC. J. High Energ. Phys. 2012, 3 (2012). https://doi.org/10.1007/JHEP04(2012)003

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  • DOI: https://doi.org/10.1007/JHEP04(2012)003

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