Nonanomalous R-symmetry in supersymmetric unified theories of quarks and leptons

Kurosawa, Kiichi; Maru, Nobuhito; Yanagida, Tsutomu T.

doi:10.1016/s0370-2693(01)00699-2

Cited by 80 publications

(98 citation statements)

References 26 publications

(37 reference statements)

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“…Such a matter field is actually introduced by e.g. models which do not have quantum anomaly in R-symmetry [21,22]. The matter field gives the contributions in two ways [16,18].…”

Section: Gaugino Masses From a Vector-like Matter Fieldmentioning

confidence: 99%

Gaugino coannihilations

2014

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The high-scale supersymmetry (SUSY) breaking scenario is now attracting many attentions, because it is consistent with almost all experiments of particle physics, astrophysics, and cosmology performed so far: e.g. it is possible to explain the Higgs mass of about 126 GeV and contains WIMP dark matter candidates. In the scenario, gauginos are predicted to be around the TeV scale, and thus within a kinematically accessible range of near future experiments. Calculation of the thermal relic abundance for gaugino (bino or wino) dark matter is then of particular importance in order to clarify its mass consistent with cosmology and to determine future directions for exploring the high-scale SUSY breaking scenario. In this article, we calculate the abundance of the gaugino dark matter, with especially focusing on various coannihilations between gauginos, which has not been extensively studied so far. Our calculation involves the Sommerfeld effect on wino and gluino annihilations, which is known to give significant contributions to their cross sections. Based on obtained results, we discuss some implications to gaugino searches at collider and indirect detection experiments of dark matter.

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“…Such a matter field is actually introduced by e.g. models which do not have quantum anomaly in R-symmetry [21,22]. The matter field gives the contributions in two ways [16,18].…”

Section: Gaugino Masses From a Vector-like Matter Fieldmentioning

confidence: 99%

Gaugino coannihilations

2014

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“…the MSSM superpotential (supplemented by heavy neutrino Majorana mass terms in accord with the seesaw mechanism [48]), this condition then necessitates that [47] (see also [34,49])…”

Section: Unique Discrete R Symmetry For Pure Gravity Mediationmentioning

confidence: 99%

Peccei-Quinn symmetry from dynamical supersymmetry breaking

et al. 2015

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The proximity of the Peccei-Quinn scale to the scale of supersymmetry breaking in models of pure gravity mediation hints at a common dynamical origin of these two scales. To demonstrate how to make such a connection manifest, we embed the Peccei-Quinn mechanism into the vector-like model of dynamical supersymmetry breakingà la IYIT. Here, we rely on the anomaly-free discrete Z R 4 symmetry required in models of pure gravity mediation to solve the µ problem to protect the Peccei-Quinn symmetry from the dangerous effect of higher-dimensional operators. This results in a rich phenomenology featuring a QCD axion with a decay constant of O 10 10 GeV and mixed WIMP/axion dark matter. In addition, exactly five pairs of extra 5 and 5 * matter multiplets, directly coupled to the supersymmetry breaking sector and with masses close to the gravitino mass, m 3/2 ∼ 100 TeV, are needed to cancel the Z R 4 anomalies.

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“…If their masses are comparable, because they have the structure of a complete SU(5) multiplet, they will not spoil (and can even improve) gauge coupling unification. 4 If at high energies the R symmetry was anomaly-free with respect to the SM nonabelian gauge groups, the low-energy theory will be anomalous. In the same way, if the high energy anomalies with respect to SU(3) and SU(2) were universal, they will no longer be in the low energy theory, as fields with different R charges coupling to the different gauge groups have been integrated out.…”

Section: Jhep01(2014)011mentioning

confidence: 99%

“…We conclude this section by discussing unification in more detail: it has been argued that non-universal axion couplings in the low-energy spoils gauge coupling unification, 4 Unification of coupling, with different R charges for such fields, might arise, for example, in the sort of direct product representations discussed in [11], or in string theory models [7]. 5 In the model presented above, we almost always have mq < m ; this is because for most of our parameter space, S2 > S1; then, the field coupling to S2 will in general be heavier.…”

Section: Jhep01(2014)011mentioning

confidence: 99%

“…Even within more conventional grand unification, this possibility may arise; it is not necessary that the same linear combination of axions that cancels the high-energy anomaly couples universally to the Standard Model gauge groups. As an existence proof, consider a field theory model in which unification is achieved in a product group: following the decon-JHEP01(2014)011 structed models of [11], we can consider a product group SU(5) 4 . A field transforming in the bifundamental representation of the first two SU(5)'s can break SU(5) 2 to the diagonal subgroup SU(3) diag × U(1), while another bifundamental in the last two SU(5)'s breaks them to SU(2) diag × U(1).…”

Section: Jhep01(2014)011mentioning

confidence: 99%

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Discrete R symmetries and anomalies

Dine

Monteux

2014

J. High Energ. Phys.

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Abstract:We comment on aspects of discrete anomaly conditions focussing particularly on R symmetries. We review the Green-Schwarz cancellation of discrete anomalies, providing a heuristic explanation why, in the heterotic string, only the "model-independent dilaton" transforms non-linearly under discrete symmetries; this argument suggests that, in other theories, multiple fields might play a role in anomaly cancellations, further weakening any anomaly constraints at low energies. We provide examples in open string theories of non-universal discrete anomalies at low energies. We then consider the fact that R symmetries are necessarily broken at low energies. We exhibit dynamical models, in which fields charged under the Standard Model gauge group (for example, a doublet and a triplet) gain roughly equal masses, but where the doublet and the triplet possess different discrete charges and the low-energy anomaly conditions fail.

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Nonanomalous R-symmetry in supersymmetric unified theories of quarks and leptons

Cited by 80 publications

References 26 publications

Gaugino coannihilations

Gaugino coannihilations

Peccei-Quinn symmetry from dynamical supersymmetry breaking

Discrete R symmetries and anomalies

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