Realistic standard model fermion mass relations in generalized minimal supergravity (GmSUGRA)

Balázs, Csaba; Li, Tianjun; Nanopoulos, Dimitri V.; Wang, Fei

doi:10.1007/jhep02(2011)096

Cited by 8 publications

(8 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Relevant calculations can be found in our previous works [37][38][39][40]. Similar calculations give the resulting trilinear terms…”

Section: Jhep06(2015)079supporting

confidence: 57%

“…Note that our previous calculations [37][38][39][40] indicate that the up-type squark trilinear terms vanish if we only introduce the F-term VEV for 75.…”

Section: Jhep06(2015)079mentioning

confidence: 83%

“…In this note we try to build such a gluino-SUGRA model from the generalized gravity mediation of SUSY breaking [37][38][39][40]. Oue results show that this scenario can be naturally obtained with proper high dimensional operators in the framework of SU (5) GUT.…”

Section: Jhep06(2015)079mentioning

confidence: 99%

See 2 more Smart Citations

Reconcile muon g-2 anomaly with LHC data in SUGRA with generalized gravity mediation

Wang

Yang

2015

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

From generalized gravity mediation we build a SUGRA scenario in which the gluino is much heavier than the electroweak gauginos at the GUT scale. We find that such a non-universal gaugino scenario with very heavy gluino at the GUT scale can be naturally obtained with proper high dimensional operators in the framework of SU (5) GUT. Then, due to the effects of heavy gluino, at the weak scale all colored sparticles are heavy while the uncolored sparticles are light, which can explain the Brookhaven muon g − 2 measurement while satisfying the collider constraints (both the 125 GeV Higgs mass and the direct search limits of sparticles) and dark matter requirements. We also find that, in order to explain the muon g − 2 measurement, the neutralino dark matter is lighter than 200 GeV in our scenario, which can be mostly covered by the future Xenon1T experiment.

show abstract

“…Relevant calculations can be found in our previous works [37][38][39][40]. Similar calculations give the resulting trilinear terms…”

Section: Jhep06(2015)079supporting

confidence: 57%

“…Note that our previous calculations [37][38][39][40] indicate that the up-type squark trilinear terms vanish if we only introduce the F-term VEV for 75.…”

Section: Jhep06(2015)079mentioning

confidence: 83%

See 1 more Smart Citation

Reconcile muon g-2 anomaly with LHC data in SUGRA with generalized gravity mediation

Wang

Yang

2015

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The presence of higher-dimensional operators generated at the Planck scale must have impact to GUT and its phenomenology, as has been shown in Refs. [5,[7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. These operators modify the usual gauge coupling unification condition [7][8][9][10][11][12][13].…”

mentioning

confidence: 99%

“…These operators modify the usual gauge coupling unification condition [7][8][9][10][11][12][13]. They affect analysis of proton decay [5,15,16] and supersymmetric (SUSY) particle spectrum in SUSY GUT and supergravity [17][18][19][20][21][22][23][24]. Therefore, one should consider effects of these higher dimension operators in model building of GUT and SUSY GUT.…”

mentioning

confidence: 99%

Effects of dimension-5 operators in E₆ grand unified theories

Huang

2014

Mod. Phys. Lett. A

View full text Add to dashboard Cite

The effective dimension-5 operators can be induced by quantum gravity or inspired by string and M theories. They have important impacts on grand unified theories. We investigate their effects for the well known E(6) model. Considering the breaking chains E6 → H = SO(10) × U V ′ (1) → SU (5) × UV (1) × U V ′ (1) → SU (3) × SU (2) × UZ(1) × UV (1) × U V ′ (1) and E6 → H = SO(10) × U V ′ (1) → SU (4) × SUL(2) × SUR(2) × U V ′ (1) → SU (3) × SUL(2) × SUR(2) × US(1) × U V ′ (1), we derive and give all of the Clebsch-Gordan coefficients Φ (r) s,z associated with E6 breaking to the standard model. Physical effects of nonzero vacuum expectations of SM singlets Higgs in E6 grand unified theories are discussed.PACS numbers: 12.10. Dm, 12.10.Kt, Grand unification theories (GUT) are among the most promising models for physics beyond the standard model (SM). Grand unification assumes that the three gauge coupling constants in SM should be unified at a high scale, the unification scale M G , but would be split at low energy due to their different renormalization group evolution from the grand unification scale to low scales. It seems that the assumption is supported by experiments since there is the apparent unification of the measured gauge couplings within the minimal SUSY SM (MSSM) at scale M G ∼ 2 × 10 16GeV [1][2][3][4]. In addition to the GUT scale, one has the Planck scale defined byGeV at which quantum gravity enters [5,6]. It is well-known that the GUT scale M G is smaller than the Planck scale M P l by two orders of magnitude. Therefore, we can investigate unification of particle interactions including effects of gravity in the effective field theory approach. That is, we introduce non-renormalizable higher dimension operators to describe the effects of quantum gravity. They are d ≥ 5 operators which are induced by gravity, enter the Lagrangian scaled by factors Of (M P l ) −(d−4) with order unity coefficients, and are subject only to the constraints of the symmetries (gauge invariance, supersymmetry, etc.) of the low energy theory. The presence of higher-dimensional operators generated at the Planck scale must have impact to GUT and its phenomenology, as has been shown in Refs. [5,[7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. These operators modify the usual gauge coupling unification condition [7][8][9][10][11][12][13]. They affect analysis of proton decay [5,15,16] and supersymmetric (SUSY) particle spectrum in SUSY GUT and supergravity [17][18][19][20][21][22][23][24]. Therefore, one should consider effects of these higher dimension operators in model building of GUT and SUSY GUT.The effects to the unification of gauge couplings produced by dimension-5 operators which are singlets of the grand unified gauge group G and formed from gauge field strengths G µν and Higgs multiplets H k of Gwhere a,b are group indices and k labels different multiplets, have been examined systematically for G = SU (5), SO(10) in the ref. [25]. In particular, differing from those given before in the literatu...

show abstract

Solving the muon g-2 anomaly in CMSSM extension with non-universal gaugino masses

Wang

Yang

et al. 2018

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

We propose to generate non-universal gaugino masses in SU(5) Grand Unified Theory (GUT) with the generalized Planck-scale mediation SUSY breaking mechanism, in which the nonuniversality arises from proper wavefunction normalization with lowest component VEVs of various high dimensional representations of the Higgs fields of SU(5) and an unique F-term VEV by the singlet. Different predictions on gaugino mass ratios with respect to widely studied scenarios are given. The gluino-SUGRA-like scenario, where gluinos are much heavier than winos, bino and universal scalar masses, can be easily realized with appropriate combinations of such highrepresentation Higgs fields. With six GUT-scale free parameters in our scenario, we can solve elegantly the tension between mSUGRA and the present experimental results, including the muon g-2, the dark matter (DM) relic density and the direct sparticle search bounds from the LHC. Taking into account the current constraints in our numerical scan, we have the following observations: (i) The large-tan β ( 35) samples with a moderate M 3 (∼ 5 TeV), a small |A 0 /M 3 | ( 0.35) and a small m A ( 4 TeV) are favoured to generate a 125 GeV SM-like Higgs and predict a large muon g-2, while the stop mass and µ parameter, mainly determined by |M 3 | ( M 0 , |M 1 |, |M 2 |), can be about 6 TeV; (ii) The moderate-tan β (35 ∼ 40) samples with a negative M 3 can have a light smuon (250 ∼ 450 GeV) but a heavy stau ( 1 TeV), which predict a large muon g-2 but a small Br(B s → µ + µ − ); (iii) To obtain the right DM relic density, the annihilation mechanisms should be stau exchange, stau coannihilation, chargino coannihilation, slepton annihilation and the combination of two or three of them; (iv) To obtain the right DM relic density, the spin-independent DM-nucleon cross section is typically much smaller than the present limits of XENON1T 2018 and also an order of magnitude lower than the future detection sensitivity of LZ and XENONnT experiments.scale |M 1/2 | should be larger than about 1 TeV (mg 2|M 1/2 | ), and thus the bino-like neutralino is bounded to be higher than about 400 GeV. All the electroweakinos (higgsinos, sleptons, sneutrinos) are all bounded to be heavier than several hundreds of GeV in CMSSM, and hence the SUSY contributions to the muon g-2 cannot be large enough to account for the discrepancy reported by the Brookhaven AGS [3][4][5]. In fact, CMSSM was found to be excluded at 90% confidence level [6] if it is required to account for both the muon g-2 anomaly and the recent LHC constraints on SUSY particles. The neutralino dark matter in CMSSM, which is heavier than several hundreds of GeV, can mainly have four annihilation mechanisms: stau coannihilation, stop coannihilation, A/H funnel, hybrid (note that the 3 h/Z funnel cannot happen and the focus point or χ ± 1 coannihilation is severely constrained by the recent dark matter direct detection limits) [5,7]. We should mention that even if only the DM relic density upper bound is considered in addition to the muon g-2, a glob...

show abstract

Realistic standard model fermion mass relations in generalized minimal supergravity (GmSUGRA)

Cited by 8 publications

References 71 publications

Reconcile muon g-2 anomaly with LHC data in SUGRA with generalized gravity mediation

Reconcile muon g-2 anomaly with LHC data in SUGRA with generalized gravity mediation

Effects of dimension-5 operators in E₆ grand unified theories

Solving the muon g-2 anomaly in CMSSM extension with non-universal gaugino masses

Contact Info

Product

Resources

About

Realistic standard model fermion mass relations in generalized minimal supergravity (GmSUGRA)

Cited by 8 publications

References 71 publications

Reconcile muon g-2 anomaly with LHC data in SUGRA with generalized gravity mediation

Reconcile muon g-2 anomaly with LHC data in SUGRA with generalized gravity mediation

Effects of dimension-5 operators in E6 grand unified theories

Solving the muon g-2 anomaly in CMSSM extension with non-universal gaugino masses

Contact Info

Product

Resources

About

Effects of dimension-5 operators in E₆ grand unified theories