The little Higgs from a simple group
نویسندگان
چکیده
منابع مشابه
00 3 The Little Higgs from a Simple Group
We present a model of electroweak symmetry breaking in which the Higgs boson is a pseudo-Nambu-Goldstone boson. By embedding the standard model’s SU(2)×U(1) into an SU(4) × U(1) gauge group, one-loop quadratic divergences to the Higgs mass from gauge and top loops are canceled automatically with the minimal particle content. The potential contains a Higgs quartic coupling which does not introdu...
متن کاملLittle Higgs Models: A Group Theoretic Primer
One of the outstanding problems in particle physics is the solution to the Standard Model hierarchy problem. In essence, this problem seeks to understand why the scale of electroweak symmetry breaking (EWSB), dominantly the Higgs mass, does not appear at the grand unification scale, or the Planck scale of quantum gravity which lay 16-18 orders of magnitude higher. The standard model scalar Higg...
متن کاملBig Corrections from a Little Higgs
We calculate the tree-level expressions for the electroweak precision observables in the SU(5)/SO(5) littlest Higgs model. The source for these corrections are the exchange of heavy gauge bosons and a triplet Higgs VEV. Weak isospin violating contributions are present because there is no custodial SU(2) global symmetry. The bulk of these weak isospin violating corrections arise from heavy gauge...
متن کاملA minimal Little Higgs model
We discuss a Little Higgs scenario that introduces below the TeV scale just the two minimal ingredients of these models, a vectorlike T quark and a singlet component (implying anomalous couplings) in the Higgs field, together with a pseudoscalar singlet η. In the model, which is a variation of Schmaltz’s simplest Little Higgs model, all the extra vector bosons are much heavier than the T quark....
متن کاملA Quirky Little Higgs Model
We consider an extra dimensional model where the quadratically divergent top loop contribution to the Higgs mass is cancelled by an uncolored heavy “top quirk” charged under a different SU(3) gauge group. The cancellation is enforced by bulk gauge symmetries. Thus we have an unusual type of little Higgs model which has some quirky signatures. The top partner in this model could be identified at...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2003
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2003/10/039