Observation of a parity violation in cesium

Bouchiat, Marie-Anne; Guéna, Jocelyne; Hunter, L. R.; Pottier, L.

doi:10.1016/0370-2693(82)90736-5

Cited by 189 publications

(125 citation statements)

References 22 publications

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“…Yet, a clear parity violation in quantitative agreement with the theoretical predictions has already been observed in the 6S -7S transition in our group [2,3], then confirmed by other authors [4]. In view of the unusually long integration times in our 6S -7S measurements (5 h for S/N = 1), our first priority is to improve the technique.…”

Section: Discussionsupporting

confidence: 88%

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Measurement of the forbidden 6S - 8S M1 transition in caesium with an electric field

et al. 1986

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Grâce à une détermination théorique de 03B1, nous en déduisons M1 = ( 2014 3,11 ± 0,48) 10-5|03BC03B2| /c. Abstract 2014 The 6S1/2 -8S1/2 caesium transition is excited in a Stark field, with a pulsed narrow-band nitrogenpumped dye-laser. It is detected by monitoring the fluorescence light emitted in the 8S1/2 -6P1/2 decay. The scalarto-vector off-diagonal polarizability ratio is obtained : 03B1/03B2 = -4.8 ± 0.5. The M1 amplitude is observed through the electronic polarization created in 8S1/2 by its interference with the Stark-induced amplitude. We obtain M1/03B2 = ( -9.15 ± 1.05) V/cm. Using a theoretical determination of 03B1, we deduce M1

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Section: Discussionsupporting

confidence: 88%

“…It is now well established since three experiments on the 6S -7S transition of caesium have been successfully performed [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Measurement of the forbidden 6S - 8S M1 transition in caesium with an electric field

et al. 1986

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“…In the following section, the published data are presented in details, in chronological order. These studies were always motivated by measurements of small phase retardation such as parity violation experiments [1,2] or vacuum magnetic birefringence experiment [3].…”

Section: Experimental Studymentioning

confidence: 99%

“…In the last decades, high reflectivity interferential mirrors have been widely used in optical cavities to measure small light polarization variations induced by the propagation in a weakly anisotropic medium such as in parity violation experiments [1,2] or in vacuum magnetic birefringence experiments [3,4,5]. Mirrors themselves are birefringent and this is manifestly a problem for such a kind of applications because they induce a phase retardation [6] which superimposes to the signal to be measured.…”

Section: Introductionmentioning

confidence: 99%

Birefringence of interferential mirrors at normal incidence

et al. 2009

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In this paper we present a review of the existing data on interferential mirror birefringence. We also report new measurements of two sets of mirrors that confirm that mirror phase retardation per reflection decreases when mirror reflectivity increases. We finally developed a computational code to calculate the expected phase retardation per reflection as a function of the total number of layers constituting the mirror. Different cases have been studied and we have compared computational results with the trend of the experimental data. Our study indicates that the origin of the mirror intrinsic birefringence can be ascribed to the reflecting layers close to the substrate.

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“…Statistical tests and various internal consistency checks are described. The results of our two independent measurements, on the two different hyperfine components AF = 0 [3] (Exp 1) and AF = 1 [4] (Exp 2), are discussed and compared. The detailed reanalysis of the systematics performed in part II, together with a more thorough examination of the calibration procedure after the results were first published [5], allows us to slightly improve the precision initially quoted.…”

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confidence: 99%

Atomic parity violation measurements in the highly forbidden 6S 1/2 - 7S1/2 caesium transition. - III. Data acquisition and processing. Results and implications

et al. 1986

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Résumé. 2014 Ce papier achève la présentation détaillée de notre expérience de Abstract. -This paper completes the detailed presentation of our PV experiment on the 6S1/2 -7S1/2 transition in Cs. A detailed description of the data acquisition and processing is given. The results of two independent measurements made on 0394F = 0 and 0394F =1 hfs components agree, providing an important crosscheck. After a complete reanalysis of systematics and calibration, the precision is slightly improved, leading to the weighted average Im Epv1/03B2 = -1.52 ± 0.18 mV/cm. Later results from an independent group agree quite well. With the semi-empirical value 03B2 = (26.8 ± 0.8) a30, our result yields Epv1 = (-0.79 ± 0.10) x 10-11 i |e|a0. Coupled with the atomic calculations, this implies that the weak nuclear charge of Cs is Qw = -68 ± 9. This value agrees with the standard electroweak theory and leads to a weak interaction angle sin2 03B8W = 0.21 ± 0.04. The complementarity of these measurements with high energy experiments is illustrated.

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Observation of a parity violation in cesium

Cited by 189 publications

References 22 publications

Measurement of the forbidden 6S - 8S M1 transition in caesium with an electric field

Measurement of the forbidden 6S - 8S M1 transition in caesium with an electric field

Birefringence of interferential mirrors at normal incidence

Atomic parity violation measurements in the highly forbidden 6S 1/2 - 7S1/2 caesium transition. - III. Data acquisition and processing. Results and implications

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