Photoproduction of leptophobic bosons

Fanelli, C.; Williams, M.

doi:10.1088/0954-3899/44/1/014002

Cited by 15 publications

(14 citation statements)

References 33 publications

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“…The other gray constraints are (left to right) from φ and η decays [64], and Υ decays [10]. Improved 'tree-level' limits are expected from photoproduction of X at the GlueX experiment [75]. Right panel: As above, but with the assumption that X dominantly decays invisibly.…”

Section: Fig 1 Left Panelmentioning

confidence: 98%

Dark forces coupled to nonconserved currents

2017

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New light vectors with dimension-4 couplings to Standard Model states have (energy/vector mass) 2 enhanced production rates unless the current they couple to is conserved. These processes allow us to derive new constraints on the couplings of such vectors, that are significantly stronger than the previous literature for a wide variety of models. Examples include vectors with axial couplings to quarks and vectors coupled to currents (such as baryon number) that are only broken by the chiral anomaly. Our new limits arise from a range of processes, including rare Z decays and flavor changing meson decays, and rule out a number of phenomenologically-motivated proposals.

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Section: Fig 1 Left Panelmentioning

confidence: 98%

Dark forces coupled to nonconserved currents

2017

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“…In addition, we provide the B B→F values for all important decay modes of the B, including specific hadronic final states, in figure 10 of appendix B as there are plans to use some of these final states in future searches (see, e.g., ref. [89]). The only hadronic final state used in any search considered here is A → π + π − , which was employed in the mass region near m(ω).…”

Section: Decays To Sm Final Statesmentioning

confidence: 99%

“…The protophobic model has a similar hadronic decay width to the A below the φ; however, at larger masses its width is larger due to its larger s-quark coupling. Finally, we also provide the B B→F values for all important decay modes of the B, including specific hadronic final states, in figure 10 as there are plans to use some of these final states in future searches [89].…”

Section: B X → Hadronsmentioning

confidence: 99%

Serendipity in dark photon searches

Ilten

Soreq

Williams

et al. 2018

J. High Energ. Phys.

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313

421

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Searches for dark photons provide serendipitous discovery potential for other types of vector particles. We develop a framework for recasting dark photon searches to obtain constraints on more general theories, which includes a data-driven method for determining hadronic decay rates. We demonstrate our approach by deriving constraints on a vector that couples to the B-L current, a leptophobic B boson that couples directly to baryon number and to leptons via B-γ kinetic mixing, and on a vector that mediates a protophobic force. Our approach can easily be generalized to any massive gauge boson with vector couplings to the Standard Model fermions, and software to perform any such recasting is provided at https://gitlab.com/philten/darkcast.

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“…"leptophobic B bosons"). Existing limits on B bosons compared to the expected sensitivity obtained from η decays at JEF [26] and photoproduction [25].…”

Section: Preliminary Resultsmentioning

confidence: 99%

The GlueX Experiment: First Results

Fanelli

2017

Few-Body Syst

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GlueX is a nuclear physics experiment located at the Thomas Jefferson National Accelerator Facility (JLab) designed to study and understand the nature of confinement in QCD by mapping the spectrum of exotic mesons. The experiment will be able to probe new areas by using photoproduction, i.e. the scattering on nucleon of ∼9 GeV linearly polarized photons derived from the recently upgraded CEBAF with a 12 GeV electron beam. Spring 2016 has been characterized by a continued detector commissioning and initial running at the full design energy. The current status of the GlueX detector performance and data collection will be discussed, with a brief overview of first physics results, future run plans, and long term upgrades.

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Photoproduction of leptophobic bosons

Cited by 15 publications

References 33 publications

Dark forces coupled to nonconserved currents

Dark forces coupled to nonconserved currents

Serendipity in dark photon searches

The GlueX Experiment: First Results

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