Test of Lorentz invariance in β decay of polarized 20Na

A. Sytema; J. E. van den Berg; O. Böll; D. Chernowitz; E. A. Dijck; J. O. Grasdijk; S. Hoekstra; K. Jungmann; S. C. Mathavan; C. Meinema; A. Mohanty; S. E. Muller; J. P. Noordmans; M. Nunez Portela; C. J. G. Onderwater; C. Pijpker; R. G. E. Timmermans; K. K. Vos; L. Willmann; H. W. Wilschut

doi:10.1103/PhysRevC.94.025503

Test of Lorentz invariance in β decay of polarized ²⁰Na

A. Sytema^*, J. E. van den Berg, O. Böll, D. Chernowitz, E. A. Dijck, J. O. Grasdijk, S. Hoekstra, K. Jungmann, S. C. Mathavan, C. Meinema, A. Mohanty, S. E. Muller, J. P. Noordmans, M. Nunez Portela, C. J. G. Onderwater, C. Pijpker, R. G. E. Timmermans, K. K. Vos, L. Willmann, H. W. Wilschut

^*Corresponding author voor dit werk

Fundamental Interactions and Symmetries

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3 Citaten (Scopus)

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Samenvatting

Background: Lorentz invariance is key in our understanding of nature, yet relatively few experiments have tested Lorentz invariance in weak interactions.

Purpose: Our goal is to obtain limits on Lorentz-invariance violation in weak interactions, in particular rotational invariance in beta decay.

Method: We search for a dependence of the lifetime of Na-20 nuclei on the nuclear spin direction. Such directional dependence would be evidence for Lorentz-invariance violation in weak interactions. A difference in lifetime between nuclei that are polarized in the east and west direction is searched for. This difference is maximally sensitive to the rotation of the Earth, while the sidereal dependence is free from most systematic errors.

Results: The experiment sets a limit of 2 x 10(-4) at 90% C.L. on the amplitude of the sidereal variation of the relative lifetime differences, an improvement by a factor 15 compared to an earlier result.

Conclusions: No significant violation of Lorentz invariance is found. The result sets limits on parameters of theories describing Lorentz-invariance violation.

Originele taal-2	English
Artikelnummer	025503
Aantal pagina's	9
Tijdschrift	Physical Review C
Volume	94
Nummer van het tijdschrift	2
DOI's	https://doi.org/10.1103/PhysRevC.94.025503
Status	Published - 16-aug.-2016

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Sytema, A., van den Berg, J. E., Böll, O., Chernowitz, D., Dijck, E. A., Grasdijk, J. O., Hoekstra, S., Jungmann, K., Mathavan, S. C., Meinema, C., Mohanty, A., Muller, S. E., Noordmans, J. P., Portela, M. N., Onderwater, C. J. G., Pijpker, C., Timmermans, R. G. E., Vos, K. K., Willmann, L., & Wilschut, H. W. (2016). Test of Lorentz invariance in β decay of polarized ²⁰Na. Physical Review C, 94(2), Artikel 025503. https://doi.org/10.1103/PhysRevC.94.025503

@article{6d7343edf16043e697e4858f20b45644,

title = "Test of Lorentz invariance in β decay of polarized 20Na",

abstract = "Background: Lorentz invariance is key in our understanding of nature, yet relatively few experiments have tested Lorentz invariance in weak interactions.Purpose: Our goal is to obtain limits on Lorentz-invariance violation in weak interactions, in particular rotational invariance in beta decay.Method: We search for a dependence of the lifetime of Na-20 nuclei on the nuclear spin direction. Such directional dependence would be evidence for Lorentz-invariance violation in weak interactions. A difference in lifetime between nuclei that are polarized in the east and west direction is searched for. This difference is maximally sensitive to the rotation of the Earth, while the sidereal dependence is free from most systematic errors.Results: The experiment sets a limit of 2 x 10(-4) at 90% C.L. on the amplitude of the sidereal variation of the relative lifetime differences, an improvement by a factor 15 compared to an earlier result.Conclusions: No significant violation of Lorentz invariance is found. The result sets limits on parameters of theories describing Lorentz-invariance violation.",

keywords = "ROTATIONAL INVARIANCE, SYMMETRY",

author = "A. Sytema and {van den Berg}, {J. E.} and O. B{\"o}ll and D. Chernowitz and Dijck, {E. A.} and Grasdijk, {J. O.} and S. Hoekstra and K. Jungmann and Mathavan, {S. C.} and C. Meinema and A. Mohanty and Muller, {S. E.} and Noordmans, {J. P.} and Portela, {M. Nunez} and Onderwater, {C. J. G.} and C. Pijpker and Timmermans, {R. G. E.} and Vos, {K. K.} and L. Willmann and Wilschut, {H. W.}",

year = "2016",

month = aug,

day = "16",

doi = "10.1103/PhysRevC.94.025503",

language = "English",

volume = "94",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "AMER PHYSICAL SOC",

number = "2",

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Sytema, A, van den Berg, JE, Böll, O, Chernowitz, D, Dijck, EA, Grasdijk, JO, Hoekstra, S , Jungmann, K, Mathavan, SC, Meinema, C, Mohanty, A, Muller, SE, Noordmans, JP, Portela, MN, Onderwater, CJG, Pijpker, C, Timmermans, RGE, Vos, KK, Willmann, L & Wilschut, HW 2016, 'Test of Lorentz invariance in β decay of polarized ²⁰Na', Physical Review C, vol. 94, nr. 2, 025503. https://doi.org/10.1103/PhysRevC.94.025503

TY - JOUR

T1 - Test of Lorentz invariance in β decay of polarized 20Na

AU - Sytema, A.

AU - van den Berg, J. E.

AU - Böll, O.

AU - Chernowitz, D.

AU - Dijck, E. A.

AU - Grasdijk, J. O.

AU - Hoekstra, S.

AU - Jungmann, K.

AU - Mathavan, S. C.

AU - Meinema, C.

AU - Mohanty, A.

AU - Muller, S. E.

AU - Noordmans, J. P.

AU - Portela, M. Nunez

AU - Onderwater, C. J. G.

AU - Pijpker, C.

AU - Timmermans, R. G. E.

AU - Vos, K. K.

AU - Willmann, L.

AU - Wilschut, H. W.

PY - 2016/8/16

Y1 - 2016/8/16

N2 - Background: Lorentz invariance is key in our understanding of nature, yet relatively few experiments have tested Lorentz invariance in weak interactions.Purpose: Our goal is to obtain limits on Lorentz-invariance violation in weak interactions, in particular rotational invariance in beta decay.Method: We search for a dependence of the lifetime of Na-20 nuclei on the nuclear spin direction. Such directional dependence would be evidence for Lorentz-invariance violation in weak interactions. A difference in lifetime between nuclei that are polarized in the east and west direction is searched for. This difference is maximally sensitive to the rotation of the Earth, while the sidereal dependence is free from most systematic errors.Results: The experiment sets a limit of 2 x 10(-4) at 90% C.L. on the amplitude of the sidereal variation of the relative lifetime differences, an improvement by a factor 15 compared to an earlier result.Conclusions: No significant violation of Lorentz invariance is found. The result sets limits on parameters of theories describing Lorentz-invariance violation.

AB - Background: Lorentz invariance is key in our understanding of nature, yet relatively few experiments have tested Lorentz invariance in weak interactions.Purpose: Our goal is to obtain limits on Lorentz-invariance violation in weak interactions, in particular rotational invariance in beta decay.Method: We search for a dependence of the lifetime of Na-20 nuclei on the nuclear spin direction. Such directional dependence would be evidence for Lorentz-invariance violation in weak interactions. A difference in lifetime between nuclei that are polarized in the east and west direction is searched for. This difference is maximally sensitive to the rotation of the Earth, while the sidereal dependence is free from most systematic errors.Results: The experiment sets a limit of 2 x 10(-4) at 90% C.L. on the amplitude of the sidereal variation of the relative lifetime differences, an improvement by a factor 15 compared to an earlier result.Conclusions: No significant violation of Lorentz invariance is found. The result sets limits on parameters of theories describing Lorentz-invariance violation.

KW - ROTATIONAL INVARIANCE

KW - SYMMETRY

U2 - 10.1103/PhysRevC.94.025503

DO - 10.1103/PhysRevC.94.025503

M3 - Article

SN - 2469-9985

VL - 94

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 025503

ER -