Dark matter and collider signals in supersymmetric 
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 models with nonuniversal 
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 couplings

Frank, Mariana; Huitu, Katri; Mondal, Subhadeep

doi:10.1103/physrevd.100.115018

Cited by 8 publications

(4 citation statements)

References 79 publications

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“…Whereas in general U(1) models one must either introduce exotic fermion fields, or add three scalar singlets (secluded U(1) models) to cancel all anomalies. This class of models have been explored [75][76][77][78][79][80][81][82] by assuming family-universal U(1) charges for the MSSM fields inspired by the lepton universality of the SM. However, it is also possible to consider sets of U(1) charges in which different families of matter fields can have distinct charges [83].…”

Section: Jhep10(2021)063mentioning

confidence: 99%

Electron and muon magnetic moments and implications for dark matter and model characterisation in non-universal U(1)′ supersymmetric models

Frank

Hiçyılmaz

Mondal

et al. 2021

J. High Energ. Phys.

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We attribute deviations of the muon and electron magnetic moments from the theoretical predictions to the presence of an additional U(1)′ supersymmetric model. We interpret the discrepancies between the muon and electron anomalous magnetic moments to be due to the presence of non-universal U(1)′ charges. In a minimally extended model, we show that requiring both deviations to be satisfied imposes constraints on the spectrum of the model, in particular on dark matter candidates and slepton masses and ordering. Choosing three benchmarks with distinct dark matter features, we study implications of the model at colliders, concentrating on variables that can distinguish our non-universal scenario from other U(1)′ implementations.

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Section: Jhep10(2021)063mentioning

confidence: 99%

Electron and muon magnetic moments and implications for dark matter and model characterisation in non-universal U(1)′ supersymmetric models

Frank

Hiçyılmaz

Mondal

et al. 2021

J. High Energ. Phys.

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“…However, when non-universality is allowed only for leptons the problem is not that severe. Additionally, non-universal leptonic charges may bring desired predictions for recently discussed B-anomalies [36,37].…”

Section: Ii1 Anomaliesmentioning

confidence: 99%

Family Non-Universal U(1)$^\prime$ Model with Minimal Number of Exotics

Hiçyılmaz,

Moretti,

Solmaz

2021

Preprint

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We have studied phenomenological implications of several family non-universal U(1) sub-models in the U(1) -extended Minimal Supersysmmetric Standard Model (UMSSM) possesing an extra down quark type exotic field. In doing this, we have started by enforcing anomaly cancellation criteria to generate a number of solutions in which the extra U(1) charges of the particles are treated as free parameters. We have then imposed existing bounds coming from colliders and astrophysical observations on the assumed sub-models and observed that current limits dictate certain charge orientations, for instance, QH u ∼ QH d is preferred in general and the charge of the singlet QS cannot be very small (|QS| > 0.4) even if any of the charges is allowed to take any value within the [−1, 1] range. We have finally studied the potential impact of such non-universal charges on Z mediated processes and made predictions for existing and future experiments. It has turned out that UMSSMs with or without the presence of light exotic quarks can yield distinguishable signatures if non-universal charges are realised in the leptonic sector of such models.

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“…There have been studies of the Z boson where the mass constraints were considerably reduced, assuming the model to be leptophobic [61][62][63] or quark-phobic [64]. For these, Z couplings to the leptons or quarks are tuned (by assuming family non-universality [65], by using a specific value of the kinetic mixing [63], or by a choice of U (1) charges [65]). We propose here take a different point of view.…”

Section: Introductionmentioning

confidence: 99%

Heavy $$Z^\prime $$ bosons in the secluded $$U(1)^\prime $$ model at hadron colliders

Frank

Selbuz²,

Turan³

2021

Eur. Phys. J. C

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We study $$Z^{\prime }$$ Z ′ phenomenology at hadron colliders in an $$U(1)^{\prime }$$ U ( 1 ) ′ extended MSSM. We choose a $$U(1)^{\prime }$$ U ( 1 ) ′ model with a secluded sector, where the tension between the electroweak scale and developing a large enough mass for $$Z^{\prime }$$ Z ′ is resolved by incorporating three additional singlet superfields into the model. We perform a detailed analysis of the production, followed by decays, including into supersymmetric particles, of a $$Z^{\prime }$$ Z ′ boson with mass between 4 and 5.2 TeV, with particular emphasis on its possible discovery. We select three different scenarios consistent with the latest available experimental data and relic density constraints, and concentrate on final signals with $$2\ell +\not \! \! E_{T}$$ 2 ℓ + ⧸ E T , $$4\ell +\not \! \! E_{T}$$ 4 ℓ + ⧸ E T and $$6\ell +\not \! \! E_{T}$$ 6 ℓ + ⧸ E T . Including the SM background from processes with two, three or four vector bosons, we show the likelihood of observing a $$Z^\prime $$ Z ′ boson is not promising for the HL-LHC at 14 TeV. While at 27 and 100 TeV, the situation is more optimistic, and we devise specific benchmark scenarios which could be observed.

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Dark matter and collider signals in supersymmetric U(1)′ models with nonuniversal Z′ couplings

Cited by 8 publications

References 79 publications

Electron and muon magnetic moments and implications for dark matter and model characterisation in non-universal U(1)′ supersymmetric models

Electron and muon magnetic moments and implications for dark matter and model characterisation in non-universal U(1)′ supersymmetric models

Family Non-Universal U(1)$^\prime$ Model with Minimal Number of Exotics

Heavy $$Z^\prime $$ bosons in the secluded $$U(1)^\prime $$ model at hadron colliders

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