Detailed Analysis of Proton Decay Rate in the Minimal Supersymmetric SO(10) Model

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dc.creatorFukuyama, Takeshi
dc.creatorIlakovac, Amon
dc.creatorKikuchi, Tatsuru
dc.creatorMeljanac, Stjepan
dc.creatorOkada, Nobuchika
dc.date2004-06-07
dc.date2004-09-25
dc.date.accessioned2026-07-07T10:49:07Z
dc.date.available2026-07-07T10:49:07Z
dc.descriptionWe consider the minimal supersymmetric SO(10) model, where only one {\bf 10} and one $\bar{\bf 126}$ Higgs multiplets have Yukawa couplings with matter multiplets. This model has the high predictive power for the Yukawa coupling matrices consistent with the experimental data of the charged fermion mass matrices, and all the Yukawa coupling matrices are completely determined once a few parameters in the model are fixed. This feature is essential for definite predictions to the proton decay rate through the dimension five operators. We analyze the proton decay rate for the dominant decay modes $p \to K^{+} \barν$ by including as many free parameters as possible and varying them. There are two free parameters in the Yukawa sector, while five in the Higgsino sector. It is found that an allowed region exists when the free parameters in the Higgs sector are tuned so as to cancel the proton decay amplitude. The resultant proton lifetime is proportional to $1/\tan^2 β$ and the allowed region eventually disappears as $\tan β$ becomes large.
dc.description15 pages, 3 figures; the version to appear in JHEP
dc.identifierhttps://arxiv.org/abs/hep-ph/0406068
dc.identifierhttp://arxiv.org/abs/hep-ph/0406068
dc.identifierJHEP0409:052,2004
dc.identifierdoi:10.1088/1126-6708/2004/09/052
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184111
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDetailed Analysis of Proton Decay Rate in the Minimal Supersymmetric SO(10) Model
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