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Title: Pati-Salam SUSY GUT with Yukawa unification

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Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 11; Related Information: CHORUS Timestamp: 2017-06-23 22:13:01; Journal ID: ISSN 2470-0010
American Physical Society
Country of Publication:
United States

Citation Formats

Poh, Zijie, Raby, Stuart, and Wang, Zi-zhi. Pati-Salam SUSY GUT with Yukawa unification. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.95.115025.
Poh, Zijie, Raby, Stuart, & Wang, Zi-zhi. Pati-Salam SUSY GUT with Yukawa unification. United States. doi:10.1103/PhysRevD.95.115025.
Poh, Zijie, Raby, Stuart, and Wang, Zi-zhi. 2017. "Pati-Salam SUSY GUT with Yukawa unification". United States. doi:10.1103/PhysRevD.95.115025.
title = {Pati-Salam SUSY GUT with Yukawa unification},
author = {Poh, Zijie and Raby, Stuart and Wang, Zi-zhi},
abstractNote = {},
doi = {10.1103/PhysRevD.95.115025},
journal = {Physical Review D},
number = 11,
volume = 95,
place = {United States},
year = 2017,
month = 6

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on June 23, 2018
Publisher's Accepted Manuscript

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  • Assuming that the electroweak group is the Glashow-Weinberg-Salam model, it is proved that the smallest Pati-Salam--type grand-unification groups are SU/sub L/(8)xSU/sub R/(8) with a single coupling constant or SU(4)xSU/sub L/(2)xSU/sub R/(2) with two coupling constants. The color group must be SU(3) with quarks in color triplets. The smallest groups in the Pati-Salam--type models which are capable of unifying three families in the same multiplet, are SU/sub L/(24)xSU/sub R/(24) with a single coupling constant and SU(4)xSp/sub L/(6)xSp/sub R/(6) with two coupling constants.
  • We provide what we believe is the minimal three family N=1 SUSY and conformal Pati-Salam model from type IIB superstring theory. This Z{sub 3} orbifolded AdS x S{sup 5} model has long lived protons and has potential phenomenological consequences for LHC (Large Hadron Collider)
  • Cited by 2
  • In this paper the authors examine whether the unification constraints on the Yukawa couplings and on the Higgs masses in the minimal supersymmetric Standard Model can be consistent with the observed mass pattern of the third generation fermions. The effects of the QCD interaction and the SU(2)[sub R] breaking owing to the U(1)[sub Y] gauge interaction and the absence of [sup nu][tau][sub R] are crucial. The authors observe that the parameter choice of no-scale supergravity is favored and the SUSY breaking scale has a lower bound, in order for the top quark to be much heavier than the bottom quark.
  • The minimal supersymmetric (SUSY) SO(10) model, where only two Higgs multiplets {l_brace}10 Circled-Plus 126-bar{r_brace} are utilized for Yukawa couplings with matter fields, can nicely fit the neutrino oscillation parameters as well as charged fermion masses and mixing angles. In the fitting of the fermion mass matrix data, the largest element in the Yukawa coupling with the 126-bar -plet Higgs (Y{sup 126}) is found to be of order one, so that the right see-saw scale should be provided by Higgs vacuum expectation values (VEVs) of {beta}(10{sup 14}GeV). This fact causes a serious problem, namely, the gauge coupling unification is spoiled becausemore » of the presence of many exotic Higgs multiples emerging at the see-saw scale. In order to solve this problem, we consider a unification between bottom-quark and tau Yukawa couplings (b - {tau} Yukawa coupling unification) at the grand unified theory (GUT) scale, due to threshold corrections of superpartners to the Yukawa couplings at the 1 TeV scale. When the b - {tau} Yukawa coupling unification is very accurate, the largest element in Y{sub 126} can become {beta}(0.01), so that the right see-saw scale is realized by the GUT scale VEV and the usual gauge coupling unification is maintained. Since the b - {tau} Yukawa unification alters the Yukawa coupling data at the GUT scale, we re-analyze the fitting of the fermion mass matrix data by taking all the relevant free parameters into account. Unfortunately, we find that no parameter region shows up to give a nice fit for the current neutrino oscillation data and therefore, the usual picture of the gauge coupling unification cannot accommodate the fermion mass matrix data fitting in our procedure.« less