Emerging jets displaced into the future

Archer-Smith, Paul; Linthorne, Dylan; Stolarski, Daniel

doi:10.1007/jhep02(2022)027

Cited by 4 publications

(4 citation statements)

References 60 publications

(83 reference statements)

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“…In the context of the LHC, it will be interesting to study the sensitivity of proposed experiments dedicated to the search for LLPs, such as CODEX-b [76], ANUBIS [77] or MATHUSLA [78,79] as well as to the search for forward physics such as FASER [80] and other experiments at a Forward Physics Facility [81] (see the recent study in Ref. [82]). Nevertheless, we emphasise that dark shower production is not strongly peaked in the forward direction, making Belle II particularly well-suited to probe this model.…”

Section: Discussionmentioning

confidence: 99%

Forecasting dark showers at Belle II

Bernreuther¹,

Böse²,

Hearty³

et al. 2022

Preprint

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Dark showers from strongly interacting dark sectors that confine at the GeV scale can give rise to novel signatures at e + e − colliders. In this work, we study the sensitivity of B factory experiments to dark showers produced through an effective interaction arising from a heavy off-shell mediator. We show that a prospective search for displaced vertices from GeV-scale long-lived particles at Belle II can improve the sensitivity to dark showers substantially compared to an existing search at BaBar. We compare the sensitivity of searches for displaced signals to searches for promptly produced resonances at BaBar and KLOE and calculate sensitivity projections for a single-photon search at Belle II to invisible dark showers produced through an effective interaction. The underlying structure of the effective interaction can be resolved at higher-energy experiments, where the mediator can be produced on-shell. To study the resulting constraints, we update electroweak precision bounds on kinetically mixed Z bosons and reinterpret a search for low-mass di-muon resonances at LHCb in terms of dark showers. We find that LHCb and Belle II are most sensitive to different particle decay lengths, underscoring the complementarity of LHC and intensity frontier experiments.

show abstract

Section: Discussionmentioning

confidence: 99%

Forecasting dark showers at Belle II

Bernreuther¹,

Böse²,

Hearty³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…In the context of the LHC, it will be interesting to study the sensitivity of proposed experiments dedicated to the search for LLPs, such as CODEX-b [76], ANUBIS [77] or MATHUSLA [78,79] as well as to the JHEP12(2022)005 search for forward physics such as FASER [80] and other experiments at a Forward Physics Facility [81] (see the recent study in ref. [82]). Nevertheless, we emphasise that dark shower production is not strongly peaked in the forward direction, making Belle II particularly well-suited to probe this model.…”

Section: Jhep12(2022)005 6 Conclusionmentioning

confidence: 99%

Forecasting dark showers at Belle II

Bernreuther

Böse

Hearty

et al. 2022

J. High Energ. Phys.

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Dark showers from strongly interacting dark sectors that confine at the GeV scale can give rise to novel signatures at e+e− colliders. In this work, we study the sensitivity of B factory experiments to dark showers produced through an effective interaction arising from a heavy off-shell mediator. We show that a prospective search for displaced vertices from GeV-scale long-lived particles at Belle II can improve the sensitivity to dark showers substantially compared to an existing search at BaBar. We compare the sensitivity of searches for displaced signals to searches for promptly produced resonances at BaBar and KLOE and calculate sensitivity projections for a single-photon search at Belle II to invisible dark showers produced through an effective interaction. The underlying structure of the effective interaction can be resolved at higher-energy experiments, where the mediator can be produced on-shell. To study the resulting constraints, we update electroweak precision bounds on kinetically mixed Z′ bosons and reinterpret a search for low-mass di-muon resonances at LHCb in terms of dark showers. We find that LHCb and Belle II are most sensitive to different particle decay lengths, underscoring the complementarity of LHC and intensity frontier experiments.

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“…In a collider setting, dark partons are produced through some portal [9][10][11][12][13][14] to the Standard Model (SM) before showering and eventually hadronizing. These dark hadrons may decay entirely or partially into SM particles, resulting in various experimental signatures including semivisible jets [15][16][17][18][19][20], emerging jets [21][22][23][24][25], SUEPs [26][27][28][29], and more [30][31][32][33][34][35][36][37][38], see [39] for a recent review. A subset of these dark sector models have strong theoretical motivations as solutions to the "little hierarchy problem," referred to as neutral naturalness models [40][41][42][43][44][45][46][47][48][49].…”

Section: Introductionmentioning

confidence: 99%

Dark sector glueballs at the LHC

Batz,

Cohen,

Curtin

et al. 2024

J. High Energ. Phys.

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We study confining dark sectors where the lightest hadrons are glueballs. Such models can provide viable dark matter candidates and appear in some neutral naturalness scenarios. In this work, we introduce a new phenomenological model of dark glueball hadronization inspired by the Lund string model. This enables us to make the most physically-motivated predictions for dark glueball phenomenology at the LHC to date. Our model approximately reproduces the expected thermal distribution of hadron species as an emergent consequence of hadronization dynamics. The ability to predict the production of glueball states heavier than the lightest species significantly expands the reach of long-lived glueball searches in MATHUSLA compared to previous simplified estimates. We also characterize regions of parameter space where emerging and/or semivisible jets could arise from pure-glue dark sectors, thereby providing new benchmark models that motivate searches for these signatures.

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Emerging jets displaced into the future

Cited by 4 publications

References 60 publications

Forecasting dark showers at Belle II

Forecasting dark showers at Belle II

Forecasting dark showers at Belle II

Dark sector glueballs at the LHC

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