Discovery and measurement of sleptons, binos, and winos with a<i>Z</i>′

Baumgart, Matthew; Hartman, Thomas; Kılıç, Can; Wang, Lian-Tao

doi:10.1088/1126-6708/2007/11/084

Cited by 46 publications

(46 citation statements)

References 27 publications

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“…This has been explored in detail for slepton production, pp → Z ′ → ℓ ℓ * , with ℓ → ℓ+ LSP, assuming that M Z ′ is already known from the conventional ℓ + ℓ − channel (Baumgart et al, 2007). This can greatly extend the discovery reach of the ℓ and may give information on the identity of the LSP.…”

Section: B Exoticsmentioning

confidence: 99%

The physics of heavyZ′gauge bosons

2009

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The U (1) ′ symmetry associated with a possible heavy Z ′ would have profound implications for particle physics and cosmology. The motivations for such particles in various extensions of the standard model, possible ranges for their masses and couplings, and classes of anomaly-free models are discussed. Present limits from electroweak and collider experiments are briefly surveyed, as are prospects for discovery and diagnostic study at future colliders. Implications of a Z ′ are discussed, including an extended Higgs sector, extended neutralino sector, and solution to the µ problem in supersymmetry; exotic fermions needed for anomaly cancellation; possible flavor changing neutral current effects; neutrino mass; possible Z ′ mediation of supersymmetry breaking; and cosmological implications for cold dark matter and electroweak baryogenesis.

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Section: B Exoticsmentioning

confidence: 99%

The physics of heavyZ′gauge bosons

2009

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“…In our phenomenological analysis, as well as in those performed in Refs. [12,16,17], leptons and quarks contained in the H and D fields are neglected and assumed to be too heavy to contribute to Z ′ phenomenology. We are nevertheless aware that this is a quite strong assumption and that in forthcoming BSM investigations one may well assume that such exotics leptons and quarks (sleptons and squarks) are lighter than the Z ′ and therefore they can contribute to Z ′ decays.…”

Section: U(1) ′ Models and Chargesmentioning

confidence: 99%

Heavy neutral gauge bosons at the LHC in an extended MSSM

Corcella

Gentile

2013

Nuclear Physics B

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Searching for heavy neutral gauge bosons Z ′ , predicted in extensions of the Standard Model based on a U(1) ′ gauge symmetry, is one of the challenging objectives of the experiments carried out at the Large Hadron Collider. In this paper, we study Z ′ phenomenology at hadron colliders according to several U(1) ′ -based models and in the Sequential Standard Model. In particular, possible Z ′ decays into supersymmetric particles are included, in addition to the Standard Model modes so far investigated. We point out the impact of the U(1) ′ group on the MSSM spectrum and, for a better understanding, we consider a few benchmarks points in the parameter space. We account for the D-term contribution, due to the breaking of U(1) ′ , to slepton and squark masses and investigate its effect on Z ′ decays into sfermions. Results on branching ratios and cross sections are presented, as a function of the MSSM and U(1) ′ parameters, which are varied within suitable ranges. We pay special attention to final states with leptons and missing energy and make predictions on the number of events with sparticle production in Z ′ decays, for a few values of integrated luminosity and centre-of-mass energy of the LHC.

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“…[6] and improves Refs. [7,8] by consistently including the so-called D-term correction, due to the extra U (1) ′ group, to the sfermion masses. The U (1) ′ groups result from the breaking of a rank-6 GUT group E 6 → SO(10) × U(1) …”

Section: Introductionmentioning

confidence: 99%

Searching for supersymmetry inZ’decays

Corcella

2013

EPJ Web of Conferences

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Abstract. I investigate production and decay of heavy neutral gauge bosons Z ′ in GUT-inspired U(1) ′ groups and in the Sequential Standard Model. In particular, decays into supersymmetric particles, such as slepton, chargino and neutralino pairs, as predicted in the MSSM, are accounted for, with a special interest in final states with leptons and missing energy. For a representative point of the parameter space, it is found that the inclusion of supersymmetric decay modes has an impact of 200-300 GeV on the Z ′ mass exclusion limits.

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Discovery and measurement of sleptons, binos, and winos with aZ′

Cited by 46 publications

References 27 publications

The physics of heavyZ′gauge bosons

The physics of heavyZ′gauge bosons

Heavy neutral gauge bosons at the LHC in an extended MSSM

Searching for supersymmetry inZ’decays

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