New Experimental Test of Coulomb's Law: A Laboratory Upper Limit on the Photon Rest Mass

Williams, Edwin R.; Faller, J. E.; Hill, H. A.

doi:10.1103/physrevlett.26.721

Cited by 328 publications

(277 citation statements)

References 5 publications

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“…The value m w(e) = 7.3725 x 10 -51 identifies the electron waveform with the photon's upper bound mass m photon ≤ 10 -14 eV/c 2 (Adelberger et al, 2007) and ≤ 10 -18 eV/c 2 (Williams et al, 1971, andAmsler et al, 2008). Empirically, inertial mass retrieves from E/c 2 value with the expression For E/c 2 ~ 10 -14 and 10 -18 eV; (12a) yields m w(e) ~10 -47 and ~10 -51 kg and (12b) gives m w(e) ~10 -52 and ~10 -56 kg respectively.…”

Section: Possibility For Convergence Of Quantum and Classical Mechanicsmentioning

confidence: 99%

Atomic Mass: Origin, Units and Constants

Obande¹

2016

APR

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Absolute and relative atomic mass values are obtained in kg/atom, MeV, C, and u for the chemical elements. The results show that: (i) Absolute atomic mass value is, of course, given by the classical mass formula m = hϑ/c 2 ; however, rotational speed per radius ω/r correlates with strain τ on the element's intrinsic electromagnetic (e-m) transverse radiation to give the coefficient k whose value turns out to be atomic mass unit energy equivalent amu/eV = k = τ/(ω/r) ½ . (ii) Each component of the wave-particle doublet plays unique roles in atomic mass phenomenology; these roles readily account for H atom's seeming fundamentality and preponderance of internal structures in virtually all particulate matter down to the electron. atomic mass shows that the former redeems the inherent error to retrieve proximate gm from E/c 2 value. (vi) Given the current literature E/c 2 values, the electron waveform mass does converge with the photon's value, i.e., m w(e) ≅ m photon . It is submitted, therefore, that particle physics has already struck matter's fundamental unit in the photon mass, maybe unknowingly for lack of litmus test.

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Section: Possibility For Convergence Of Quantum and Classical Mechanicsmentioning

confidence: 99%

Atomic Mass: Origin, Units and Constants

Obande¹

2016

APR

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“…Clearly, such a large birefringence is sufficient for the phase matchability in the visible and ultraviolet region. The phase-matching conditions have been deduced from the calculated refractive indices, as shown in Supplementary 35 , the magnitude of the electrostatics force of interaction can be calculated using the equation (1):…”

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confidence: 99%

Beryllium-free Li4Sr(BO3)2 for deep-ultraviolet nonlinear optical applications

et al. 2014

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Nonlinear optical (NLO) materials are of great importance in laser science and technology, as they can expand the wavelength range provided by common laser sources. Few NLO materials, except KBe 2 BO 3 F 2 (KBBF), can practically generate deep-ultraviolet coherent light by direct second-harmonic generation process, limited by the fundamental requirements on the structure-directing optical properties. However, KBBF suffers a strong layering tendency and high toxicity of the containing beryllium, which hinder the commercial availability of KBBF. Here we report a new beryllium-free borate, Li 4 Sr(BO 3 ) 2 , which preserves the structural merits of KBBF, resulting in the desirable optical properties. Furthermore, Li 4 Sr(BO 3 ) 2 mitigates the layering tendency greatly and enhances the efficiency of second-harmonic generation by more than half that of KBBF. These results suggest that Li 4 Sr(BO 3 ) 2 is an attractive candidate for the next generation of deep-ultraviolet NLO materials. This beryllium-free borate represents a new research direction in the development of deep-ultraviolet NLO materials.

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“…But whatever the theoretical motivations are for doing this experiment, the fact remains that the strongest null result to date comes from the most precise direct test of Coulomb's law [52], which corresponds to an effective upper limit on |ǫ| of 2 × 10 −5 . This means that unknown physics could yield signal strengths of up to ∼ 10 14 times the estimate given in Eq.…”

Section: Discussionmentioning

confidence: 99%

“…[51], if the photon acquires a mass due to the Higgs effect then the sharp limits posed by the galactic vector potential are invalid. In that case the sharpest limit on the photon mass is given by the most precise experimental test of Coulomb's law to date [52], which implies an upper limit on the photon mass of ∼ 10 −14 eV. This corresponds to an upper limit on |ǫ| of 2 × 10 −5 .…”

Section: Polarizing the Mirror Plasmamentioning

confidence: 99%

Detecting dark matter in electromagnetic field penetration experiments

Mitra

2006

Phys. Rev. D

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Dark matter in the form of particles from a hidden mirror sector has recently been proposed as an explanation for the DAMA annual modulation signal. Here one assumes that there exists a small mixing between photons and mirror photons. We show that dark matter with this property can also be detected in electromagnetic field penetration experiments. Such experiments can be used to measure the speed and direction of the dark matter halo wind, the local density, the temperature, and the strength of the photon-mirror photon mixing interaction. An additional result would be a significant improvement of the upper limit on the photon mass.PACS numbers: 95.35.+d

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New Experimental Test of Coulomb's Law: A Laboratory Upper Limit on the Photon Rest Mass

Cited by 328 publications

References 5 publications

Atomic Mass: Origin, Units and Constants

Atomic Mass: Origin, Units and Constants

Beryllium-free Li4Sr(BO3)2 for deep-ultraviolet nonlinear optical applications

Detecting dark matter in electromagnetic field penetration experiments

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