Model-Independent Bounds on Kinetic Mixing

By A. Hook, E. Izaguirre, J. Wacker. 2010

227 citations recorded by the source corpus.

New Abelian vector bosons can kinetically mix with the hypercharge gauge boson of the Standard Model. This letter computes the model independent limits on vector bosons with masses from 1 GeV to 1 TeV. The limits arise from the numerous e{sup +}e{sup -} experiments that have been performed in this energy range and bound the kinetic mixing by {epsilon} {approx}< 0.03 for most of the mass range studied, regardless of any additional interactions that the new vector boson may have.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/7c2ac2a9febbc2facfc6654cc35df7f3b1b8d715

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In Nuclear and High Energy Physics

1. Tongyan Lin
2. R. Essig
3. G. Krnjaic
4. T. Volansky
5. J. Mardon
6. P. Schuster
7. N. Toro
8. A. Berlin

Citations in the corpus

• SIMP spectroscopy (2015, unknown): “After electroweak symmetry breaking occurs, Aμ becomes a mixture of the Z-boson and the dark photon V [8, 27], V μ = −ζ cχ Z + cζ cχ A , (3.”
• Dark matter, millicharges, axion and scalar particles, gauge bosons, and other new physics with LDMX (2018, background): “Nearly all 2 viable thermal DM scenarios below the GeV-scale contain all of the following ingredients: 1) SM Neutrality: Unlike WIMPs, which can realize thermal freeze-out via SM gauge interactions, sub-GeV relics must not carry electroweak quantum numbers; new electroweak states are essentially rul”
• Dark matter models and direct detection (2019, background): “For dark photon masses above MeV, we show constraints from electroweak precision observables (EWPO) [98] and accelerator bounds on a visibly-decaying dark photon [99, 100, 101, 102, 103].”
• Direct detection of sub-GeV dark matter with semiconductor targets (2015, background): “Among these, we only show the strongest constraints, which are a BaBar search for e+e− → γ + invisible [49, 51, 52] as well as electroweak precision tests (EWPT) [77, 78]; however, to guide the eye, we also show the “favored” 2σ-region for which the A′ can explain the discrepancy between the measure”