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Prof. Norma Mankoč Borštnik: Spin-Charge-Family theory explains origin of families and scalar fields

Date of publication: 16. 11. 2011
Monday physics colloquium
Ponedeljek, 21. novembra 2011, ob 16:15 v predavalnici F1, FMF UL, Jadranska 19, Ljubljana
Pred predavanjem vse udeležence vabimo na čaj!

Povzetek:

   Spin-Charge-Family theory explains origin of families and scalar fields

  Prof. Norma Mankoč Borštnik, Fakulteta za matematiko in fiziko, Univerza v Ljubljani

The Standard model brought an elegant step to understanding fermion and boson fields.It postulated a concept of massless family members carrying all the charges in the fundamental (spinor) representation of the charge groups. To each charge it postulated the existence of vector fields, all with the charges in the adjoint (vector) representations of the charge groups. It postulated the existence of the scalar Higgs with the charges in the fundamental representations of the groups to "dress" right handed fermions into the charges of the left handed ones and to take care of masses of the weak bosons. To explain masses of fermion families it postulated the existence of Yukawas. The Standard model never has the ambition to explain the assumptions.

In this talk I shall show, how does my Spin-Charge-Family theory, the only proposal in the literature which offers the explanation for the existence of families, ‘'see'' the assumptions of the Standard model and explains them. In the Spin-Charge-family theory there are several scalar fields, carrying all the charges in the adjoint representations. They take care of masses of fermions and bosons in agreement with the experimental data as the so far made calculations manifest. I shall present the predictions and comment on the fermion nature of the Higgs and other trials extending the fermion/boson nature of the Higgs to Yukawa scalar fields.

Še slovenski prevod:

Moj predlog enotne teorije spina nabojev in družin pojasni izvor družin in skalarnih polj:  

Standardni model je prinesel eleganten nov korak v razumevanju fermionskih in bozonskih polj ter interakcije med njimi. Postavil je koncept članov ene družine fermionov z maso nič: kvarke, ki nosijo barvni naboj ter leptone brez barvnega naboja. Levoročnim je pripisal šibki in hiper naboj, desnoročnim samo hiper naboj. Vsi fermioni nosijo vse naboje v spinorski upodobitvi grup. Za vsak naboj je predpisal vektorska polja z maso nič in naboji v ,,vektorski'' upodobitvi istih grup. Postuliral je obstoj skalarnega polja (Higgsa), ki nosi fermionke naboje zato, da  ,,obleče'' desnoročne fermione v kvantna števila levoročnih in poskrbi za maso vektorskih polj s šibkim nabojem. Da razloži mase družin fermionov, je postuliral  Yukawine sklopitve. Ni pa imel ambicije pojasniti svojih privzetkov.

V tokratnem predavanju bom pokazala, kako moj predlog teorije, ki edini ponuja mehanizem za pojav družin, vidi predpostavke standardnega modela pri doslej opazljivih energijah in jih pojasni. V mojem predlogu je skalarnih polj več, vsa pa nosijo vse naboje v ,,vektorski'' upodobitvi grup. Skalarna polja poskrbijo za maso fermionov in bozonov. V opazljivem območju ponudijo doslej opažene lastnosti fermionov in bozonov. Pokazala bom tudi, kakšne napovedi ponuja predlog in komentirala, kako je v predlogu videti Higgs in drugi poskusi, ki družinsko kvantno število pojasnijo z grupo, Yukawine sklopitve pa s skalarnimi polji, ki posnemajo lastnosi Higgsovega polja.