Higgsino mass matrix ansatz for MSSM

Kang Sin Choi, Ki Young Choi, Kyuwan Hwang, Jihn E. Kim

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An ansatz, Det M = 0, for the Higgsino mass matrix is suggested toward the minimal supersymmetric standard model (MSSM). Small instanton solutions effective around the GUT scale can fulfill this condition. An argument that the couplings contain a moduli field is given for a dynamical realization of this Higgsino mass matrix ansatz. We also present a string orbifold trinification toward this realization.

Original languageEnglish
Pages (from-to)165-172
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1-2
StatePublished - 15 Jan 2004

Bibliographical note

Funding Information:
J.E.K. thanks Hans Peter Nilles for helpful comments. K.S.C., K.Y.C., and J.E.K. thank the Physikalisches Institut of Universität Bonn for the hospitality extended to them when this work was completed. This work is supported in part by the KOSEF ABRL Grant to Particle Theory Research Group of SNU, the BK21 program of Ministry of Education, and Korea Research Foundation Grant No. KRF-PBRG-2002-070-C00022.


  • Higgsino mass
  • MSSM
  • Orbifold
  • Trinification


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