Unitarity limit on the gaugino-gravitino mass ratio

Bhattacharya, Tanmoy ; Roy, Probir (1988) Unitarity limit on the gaugino-gravitino mass ratio Physics Letters B, 206 (4). pp. 655-660. ISSN 0370-2693

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0370-2693(88)90713-7


The imposition of tree-level unitarity at all energies upto the Planck scale on the amplitude for the scattering of two gauge bosons into two gravitinos is shown to put an upper bound on the ratio between gaugino and gravitino masses. The absolute masses of the lightest gauge singlet scalar and pseudoscalar bosons are also bounded from above

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