A Little Solution to the Little Hierarchy Problem: A Vector-like Generation - High Energy Physics - PhenomenologyReportar como inadecuado




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Abstract: We present a simple solution to the little hierarchy problem in the MSSM: avector-like fourth generation. With O1 Yukawa couplings for the new quarks,the Higgs mass can naturally be above 114 GeV. Unlike a chiral fourthgeneration, a vector-like generation can solve the little hierarchy problemwhile remaining consistent with precision electroweak and direct productionconstraints, and maintaining the success of the grand unified framework. Thenew quarks are predicted to lie between ~ 300 - 600 GeV and will thus bediscovered or ruled out at the LHC. This scenario suggests exploration ofseveral novel collider signatures.



Autor: Peter W. Graham, Ahmed Ismail, Surjeet Rajendran, Prashant Saraswat

Fuente: https://arxiv.org/







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