Propagators in noncommutative instantons

Lee, Bum-Hoon; Yang, Hyun Seok

doi:10.1103/physrevd.66.045027

Cited by 42 publications

(76 citation statements)

References 56 publications

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“…The drops are at terminal velocity as they fall through the ionized air, for example a 25 µm diameter drop has a terminal velocity of about 1.7 cm/s. The charge measuring part of the search apparatus [6] lies just below the neutralizer and uses a horizontal, alternating electric field to give the drops horizontal, alternating motion, the extent of the motion being proportional to the charge on the drop. The position of the drops as they fall under gravity and move horizontally under the alternating electric field is recorded onto a computer using a lens and CCD system with a stroboscopic LED light source.…”

Section: Description Of Neutralizermentioning

confidence: 99%

“…The drops are at terminal velocity as they fall through the ionized air. The charge measuring part of the search apparatus [6] lies just below the neutralizer and uses a horizontal, alternating electric field to give the drops horizontal, alternating motion, the extent of the motion being proportional to the charge on the drop. Fig.…”

Section: Thomson and G P Thomson In Their 1928 Book Conduction Of Ementioning

confidence: 99%

“…1, our drop generator with this oil produces a very narrow spread of drop charges close to zero charge. This narrow spread enabled us to set the maximum rms charge error per drop to less than 0.03e [6]. We do not know the reason for this narrow spread.…”

Section: Introductionmentioning

confidence: 99%

“…In our fractional charge search experiments the drops produced by a drop-on-demand method [6,8] have diameters in the range of 10 to 25 µm, but in any particular search the drop diameter is maintained to a fraction of a per cent over the life of the search. It is important in these searches to keep the average drop charge close to zero and to keep the spread of the drop charges within a range of about +15e to -15e.…”

Section: Introductionmentioning

confidence: 99%

“…We developed this method to use in our searches for fractional charge elementary particles using a new version of the Millikan oil drop experiment [6,7]. A qualitative model of how the neutralizer works is given in the Appendix.…”

Section: Introductionmentioning

confidence: 99%

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A device for precision neutralization of electric charge of small drops using ionized air

Fan

Kim

Lee

et al. 2003

Review of Scientific Instruments

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For use in our Millikan type liquid drop searches for fractional charge elementary particles we have developed a simple ionized air device for neutralizing a narrow stream of small drops. The neutralizer has been used for drops ranging in diameter from 10 to 25 µm. The width of the produced charge distribution is given by the Boltzmann equilibrium charge distribution and the mean of the distribution is set by a bias voltage.Using the bias voltage, the mean can be set with a precision of better than e, the electron charge. The use of the neutralizer is illustrated in an application to mineral oil drops produced with charges of the order of 1000e. We also show the interesting case of silicone oil drops that are produced in our drop generator with a charge distribution narrower than the Boltzmann equilibrium charge distribution, the charge distribution being broadened by the neutralizer.

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Section: Description Of Neutralizermentioning

confidence: 99%

Section: Thomson and G P Thomson In Their 1928 Book Conduction Of Ementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A device for precision neutralization of electric charge of small drops using ionized air

Fan

Kim

Lee

et al. 2003

Review of Scientific Instruments

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Implications of canonical gauge coupling unification in high-scale supersymmetry breaking

et al. 2008

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We systematically construct two kinds of models with canonical gauge coupling unification and universal high-scale supersymmetry breaking. In the first we introduce standard vector-like particles while in the second we also include non-standard vector-like particles. We require that the gauge coupling unification scale is from 5 × 10 15 GeV to the Planck scale, that the universal supersymmetry breaking scale is from 10 TeV to the unification scale, and that the masses of the vector-like particles (M V ) are universal and in the range from 200 GeV to 1 TeV. Using two-loop renormalization group equation (RGE) running for the gauge couplings and one-loop RGE running for Yukawa couplings and the Higgs quartic coupling, we calculate the supersymmetry breaking scales, the gauge coupling unification scales, and the corresponding Higgs mass ranges. When the vector-like particle masses are less than 1 TeV, these models can be tested at the LHC.

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Lattice renormalization of the static quark derivative operator

Blossier¹,

Yaouanc²,

Morénas³

et al. 2006

Physics Letters B

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We give the analytical expressions and numerical values of radiative corrections to the covariant derivative operator on the static quark line, used for the lattice calculation of the Isgur-Wise form factors $\tau_{1/2}(1)$ and $\tau_{3/2}(1)$. Those corrections induce an enhancement of renormalized quantities if an hypercubic blocking is applied to the Wilson line, whereas there is a reduction without such a blocking

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Propagators in noncommutative instantons

Cited by 42 publications

References 56 publications

A device for precision neutralization of electric charge of small drops using ionized air

A device for precision neutralization of electric charge of small drops using ionized air

Implications of canonical gauge coupling unification in high-scale supersymmetry breaking

Lattice renormalization of the static quark derivative operator

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