Abstract
We present a re-analysis of the decay b{yields}s{gamma} in the Minimal Supersymmetric Standard Model with radiatively induced breaking of the gauge group SU(2)xU(1). We extend this analysis to regions of the supersymmetric parameter space wider than those previously studied. Results are explicitly presented for m{sub t}=150 GeV. We emphasize the consequences for future searches of charged Higgs and charginos from a measurement of this decay at the Standard Model level. In spite of the strong sensitivity of this decay to the effects of supersymmetry, we find that, at the moment, no lower limit on the mass of these particles can be obtained. The large chargino contributions to the branching ratio for b{yields}s{gamma}, for large values of tan {beta}, are effectively reduced by pushing the lightest eigenvalue of the up-squark mass matrix closer to the electroweak scale, i.e. by increasing the degree of degeneracy among the up-squarks. (orig.)
Borzumati, F M
[1]
- Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik
Citation Formats
Borzumati, F M.
The decay b {yields}s{gamma}in the MSSM revisited.
Germany: N. p.,
1993.
Web.
Borzumati, F M.
The decay b {yields}s{gamma}in the MSSM revisited.
Germany.
Borzumati, F M.
1993.
"The decay b {yields}s{gamma}in the MSSM revisited."
Germany.
@misc{etde_10137892,
title = {The decay b {yields}s{gamma}in the MSSM revisited}
author = {Borzumati, F M}
abstractNote = {We present a re-analysis of the decay b{yields}s{gamma} in the Minimal Supersymmetric Standard Model with radiatively induced breaking of the gauge group SU(2)xU(1). We extend this analysis to regions of the supersymmetric parameter space wider than those previously studied. Results are explicitly presented for m{sub t}=150 GeV. We emphasize the consequences for future searches of charged Higgs and charginos from a measurement of this decay at the Standard Model level. In spite of the strong sensitivity of this decay to the effects of supersymmetry, we find that, at the moment, no lower limit on the mass of these particles can be obtained. The large chargino contributions to the branching ratio for b{yields}s{gamma}, for large values of tan {beta}, are effectively reduced by pushing the lightest eigenvalue of the up-squark mass matrix closer to the electroweak scale, i.e. by increasing the degree of degeneracy among the up-squarks. (orig.)}
place = {Germany}
year = {1993}
month = {Aug}
}
title = {The decay b {yields}s{gamma}in the MSSM revisited}
author = {Borzumati, F M}
abstractNote = {We present a re-analysis of the decay b{yields}s{gamma} in the Minimal Supersymmetric Standard Model with radiatively induced breaking of the gauge group SU(2)xU(1). We extend this analysis to regions of the supersymmetric parameter space wider than those previously studied. Results are explicitly presented for m{sub t}=150 GeV. We emphasize the consequences for future searches of charged Higgs and charginos from a measurement of this decay at the Standard Model level. In spite of the strong sensitivity of this decay to the effects of supersymmetry, we find that, at the moment, no lower limit on the mass of these particles can be obtained. The large chargino contributions to the branching ratio for b{yields}s{gamma}, for large values of tan {beta}, are effectively reduced by pushing the lightest eigenvalue of the up-squark mass matrix closer to the electroweak scale, i.e. by increasing the degree of degeneracy among the up-squarks. (orig.)}
place = {Germany}
year = {1993}
month = {Aug}
}