We demonstrate that spontaneous R-invariance breaking in a low energy SUSY theory inevitably leads to an extra light pseudoscalar boson (pionino). As this possibility is experimentally excluded the R-invariance has to be broken explicitly. for example by a lagrangian gluino Majorana mass term.
|Number of pages||2|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Apr 21 1983|
ASJC Scopus subject areas
- Nuclear and High Energy Physics