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Search for a very light CP odd neutral Higgs boson of the MSSM

Research output: Contribution to journalJournal article

Published
  • ALEPH Collaboration
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<mark>Journal publication date</mark>1992
<mark>Journal</mark>Physics Letters B
Issue number3
Volume285
Number of pages10
Pages (from-to)309-318
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

The reactions have been used to search for the neutral Higgs bosons h and A of the MSSM in the case where the CP-odd A is lighter than 2mμ, taking into account the large h → AA decay branching ratio. No signal was found in the data sample collected until the end of 1991 by the ALEPH experiment at LEP. For tan β ⩾, mA < 2mμ is excluded at 95% CL for any mh.