On the photon mass

Kobzarev, I.Yu.; Okun, L.B.

doi:10.3367/ufnr.0095.196805i.0131

Cited by 30 publications

(25 citation statements)

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“…It represents the best laboratory limit to date, an improvement in voltage sensitivity of more than 10' over Plimpton and Lawton and 10" over Cavendish I check de Broglie's simple numerical calculation. ' The 6rst published correction appeared in Kobzarev and Okun' (1968). We noticed it in preparing Goldhaber and Nieto (1968).…”

Section: B Deviations From Coulomb's Lawmentioning

confidence: 91%

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Terrestrial and Extraterrestrial Limits on The Photon Mass

1971

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We give a review of methods used to set a limit on the mass p of the photon. Direct tests for frequency dependence of the speed of light are discussed, along with more sensitive techniques which test Coulomb's Law and its analog in magnetostatics. The link between dynamic and static implications of finite p, is deduced from a set of postulates that make Proca's equations the unique generalization of Maxwell's. We note one hallowed postulate, that of energy conservation, which may be tested severely using pulsar signals. We present the merits of the old methods and of possible new experiments, and discuss other physical implications of finite p, . A simple theorem is proved: For an experiment confined in dimensions D, effects of finite p, are of order (ttbD)' -there is no "resonance" as the oscillation frequencyã pproaches p, (h, =c=1).The best results from past experiments are (a) terrestrial measurements of c at diRerent frequencies @&2&(10 "g= -7&(10 ' cm '= -10 ' eV;(b) measurements of radio dispersion in pulsar signals (whistler effect)

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Section: B Deviations From Coulomb's Lawmentioning

confidence: 91%

“…Among publications of the last few years, the works of Bartlett, Goldhagen and Phillips (1970); Feinberg (1969); Kobzarev and Okun' (1968); and Williams and Park (1971) have been most helpful.…”

Section: Acknowledgmentsmentioning

confidence: 98%

Terrestrial and Extraterrestrial Limits on The Photon Mass

1971

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“…For this problem the ensemble of nuclear S-matrices has the form [18][19][20] S = USU ~, S= 1-iR, R = FrQF, (1) Q: E-Ho-V+zFF where U is a unitary matrix of dimension N• N, which is equivalent to the Engelbrecht-Weidenmiiller transformation matrix [21,22], Vand FareA • andA • random matrices with elements V~,, F~k , respectively; I is a N• N unit matrix in channel space; N is the number of open channels (k = 1,2,..., N) and A is the number of quasibound states (~ = l, 2,..., A). For this problem the ensemble of nuclear S-matrices has the form [18][19][20] S = USU ~, S= 1-iR, R = FrQF, (1) Q: E-Ho-V+zFF where U is a unitary matrix of dimension N• N, which is equivalent to the Engelbrecht-Weidenmiiller transformation matrix [21,22], Vand FareA • andA • random matrices with elements V~,, F~k , respectively; I is a N• N unit matrix in channel space; N is the number of open channels (k = 1,2,..., N) and A is the number of quasibound states (~ = l, 2,..., A).…”

Section: Representation Of S-matrixmentioning

confidence: 99%

“…Equations (19)(20)(21)(22)(23)(24) permit to evaluate th average scattering matrix, i.e. the average total cross section as well as the shape elastic cross section, using the spectral properties of the Hamiltonian.…”

Section: The Average S-matrixmentioning

confidence: 99%

“…Figure 2 illustrates the influence of the coupling strength (F~) on the average S-matrix when (V 2) =0 and the energy E lies at the centre of the spectrum. Calculations were carried out according to (11,19,20,32) for two cases: 1) f (y) = 5 (y -37) (statistically equivalent channels); 2) f (y)=(2Jz fiy)-l/2 exp(-Y). It aggrees with the results of K-matrix parametrization for isolated resonances [5].…”

Section: The Solutions Of the Integral Equationsmentioning

confidence: 99%

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