Brane–antibrane kinetic mixing, millicharged particles and SUSY breaking

By S. Abel, B. Schofield. 2003

155 citations recorded by the source corpus.

It is known that hidden U(1) gauge factors can couple to visible U(1)s through kinetic mixing. This phenomenon is shown to occur in non-supersymmetric string set-ups, between D-branes and D-branes. Kinetic mixing, if present, acts either to give millicharges (of, e.g., hypercharge) to would-be hidden sector fermions, or to generate an enhanced communication of supersymmetry breaking that dominates over the usual gravitational suppression. In either case, the conclusion is that the string scale in non-supersymmetric brane configurations has a generic upper bound of Ms≲108 GeV.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/0fa280df0accc0fd0b17c9feb6809b4a09b28a62

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Citations in the corpus

Cosmology and Fundamental Physics with the Euclid Satellite (2012, background): “In string theory, such hidden U(1)s and the required kinetic mixing are a generic feature [5, 4, 311, 6, 402].”
Illuminating the hidden sector of string theory by shining light through a magnetic field (2006, background): “(Note that the strong bounds on Ms obtained in [13] from the astrophysical bounds on ǫ do not apply in general due to the charge screening mechanism proposed in [10].”
The Dark Photon (2020, background): “…is non-perturbartive; for example, values between O(10−12) and O(10−6) have been discussed—mostly within the broad heading of string compactification (Abel and Schofield, 2004; Abel et al., 2008; Dienes et al., 1997; Goodsell, 2009; Goodsell et al., 2009; Heckman and Vafa, 2011), or in…”
Testing string vacua in the lab: from a hidden CMB to dark forces in flux compactifications (2011, unknown): “alled hidden photons are a prime candidate for such particles. At low energies, their interactions with the visible sector occur primarily via kinetic mixing [1, 2] (studied in string – 1 – theory in [3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]) with the electromagnetic12 U(1), L ⊃ − 1 4 F(vis) µν F µν (vi”