The Light Stop Scenario from Gauge Mediation

Delgado A, Nardini G, Quiros M (2012)
JHEP 2012(4).

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
In this paper we embed the light stop scenario, a MSSM framework whichexplains the baryon asymmetry of the universe through a strong first orderelectroweak phase transition, in a top-down approach. The required low energyspectrum consists in the light SM-like Higgs, the right-handed stop, thegauginos and the Higgsinos while the remaining scalars are heavy. This spectrumis naturally driven by renormalization group evolution starting from a heavyscalar spectrum at high energies. The latter is obtained through asupersymmetry-breaking mix of gauge mediation, which provides the scalarsmasses by new gauge interactions, and gravity mediation, which generatesgaugino and Higgsino masses. This supersymmetry breaking also explains the \mu\and B_\mu\ parameters necessary for electroweak breaking and predicts smalltri-linear mixing terms A_t in agreement with electroweak baryogenesisrequirements. The minimal embedding predicts a Higgs mass around itsexperimental lower bound and by a small extension higher masses m_H\lesssim 127GeV can be accommodated.
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JHEP
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2012
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4
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Delgado A, Nardini G, Quiros M. The Light Stop Scenario from Gauge Mediation. JHEP. 2012;2012(4).
Delgado, A., Nardini, G., & Quiros, M. (2012). The Light Stop Scenario from Gauge Mediation. JHEP, 2012(4). doi:10.1007/JHEP04(2012)137
Delgado, A., Nardini, G., and Quiros, M. (2012). The Light Stop Scenario from Gauge Mediation. JHEP 2012.
Delgado, A., Nardini, G., & Quiros, M., 2012. The Light Stop Scenario from Gauge Mediation. JHEP, 2012(4).
A. Delgado, G. Nardini, and M. Quiros, “The Light Stop Scenario from Gauge Mediation”, JHEP, vol. 2012, 2012.
Delgado, A., Nardini, G., Quiros, M.: The Light Stop Scenario from Gauge Mediation. JHEP. 2012, (2012).
Delgado, Antonio, Nardini, Germano, and Quiros, Mariano. “The Light Stop Scenario from Gauge Mediation”. JHEP 2012.4 (2012).

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