Weak interaction symmetries with atom traps

Behr, J. A.; Gorelov, A.; Melconian, D.; Trinczek, M.; Alford, W.P.; Ashery, D.; Bricault, P.; Courneyea, L.; D’Auria, J.M.; Deutsch, J.; Dilling, J.; Dombsky, M.; Dubé, Philip E.; Glück, F.; Gryb, S.; Gu, S.; Häusser, O.; Jackson, K. P.; Lee, B.; Mills, Andrew; Paradis, Éric; Pearson, M. R.; Pitcairn, R.; Prime, E. J.; Roberge, D.; Swanson, T. B.

doi:10.1140/epjad/i2005-06-097-9

Cited by 13 publications

(8 citation statements)

References 34 publications

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“…Possible extensions of this experiment [30] would include measuring the same quantity in 82 Rb [31] as a nuclear structure consistency test in the same shell. The ground-state transition is an 82% branch and the lower Q value (3.4 vs. 4.7 MeV) also would help reduce dependence on recoil-order terms.…”

Section: Future Improvementsmentioning

confidence: 99%

Tensor interaction constraints fromβ-decay recoil spin asymmetry of trapped atoms

et al. 2009

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We have measured the angular distribution of recoiling daughter nuclei emitted from the Gamow-Teller β decay of spin-polarized 80 Rb. The asymmetry of this distribution vanishes to lowest order in the standard model (SM) in pure Gamow-Teller decays, producing an observable very sensitive to new interactions. We measure the non-SM contribution to the asymmetry to be A T = 0.015 ± 0.029 (stat) ±0.019 (syst), consistent with the SM prediction. We constrain higher-order SM corrections using the measured momentum dependence of the asymmetry, and their remaining uncertainty dominates the systematic error. Future progress in determining the weak magnetism term theoretically or experimentally would reduce the final errors. We describe the resulting constraints on fundamental four-Fermi tensor interactions.

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Section: Future Improvementsmentioning

confidence: 99%

Tensor interaction constraints fromβ-decay recoil spin asymmetry of trapped atoms

et al. 2009

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“…Its explanation through the "structure" of the electron acquired from virtual photon, electron and positron fields was an important starting point for the succesful theory of QED. Today the QED part of the lepton magnetic anomalies can be completely calculated to ( α π ) 3 analytically and all terms of order ( α π ) 4 numerically as well as the major terms to ( α π ) 5 [6].…”

Section: Known Interactions and Searches For New Physicsmentioning

confidence: 99%

“…Whereas the first approach usually is carried out in high energy physics, the second approach typically has experiments at low energies. Precision measurements at low energies offer various possibilities to confirm the SM at a high level, to find new physics and to determine accurate values of important fundamental constants [1][2][3]. Possibilities for stringent tests of the SM arise from a large number of experiments using stored and trapped particles, atoms and molecules.…”

Section: Introductionmentioning

confidence: 99%

Fundamental interactions

Jungmann

2006

Hyperfine Interact

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Trapped and stored charged particles, atoms and molecules offer a number of opportunities to measure exact values of important fundamental constants such as lepton magnetic anomalies, the fine structure constant and the electron mass. New Physics can be searched for by comparing precise measurements and highly accurate calculations of particle properties. Some recent experiments differ by a few standard deviations from standard theory predictions, such as the muon magnetic anomaly and 21 Na β-decay; for a clarification further work is needed.

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“…Precision measurements at low energies offer indeed various possibilities to confirm the SM at a high level, to find new physics and to determine accurate values of important fundamental constants [1][2][3][4]. Stringent tests of the SM arise in particular through exploiting one of the recent achievements in atomic physics: cooling and storing of ions, atoms and molecules.…”

Section: Introductionmentioning

confidence: 99%

“…Stringent tests of the SM arise in particular through exploiting one of the recent achievements in atomic physics: cooling and storing of ions, atoms and molecules. This includes, e.g., precise measurements of magnetic anomalies [5][6][7][8], precision studies of nuclear β-decays [2][3][4]9] and searches for permanent electric dipole moments of particles, nuclei, atoms and molecules [10] as well as spectroscopy of antiprotonic atoms [11].…”

Section: Introductionmentioning

confidence: 99%

Tests of fundamental symmetries and interactions – using nuclei and lasers

Jungmann

2006

Hyperfine Interact

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State of the art laser technology and modern spectroscopic methods allow to address issues of fundamental symmetries and fundamental interactions in atoms with high precision experiments. In particular the discrete symmetries Parity (P), Charge Conjugation (C), Time Reversal (T) as well as their combinations CP and CPT are in the center of interest at present. Actual projects are concerned with Parity Violation in atoms, Time Reversal Violation in β-decays and searches for permanent Electric Dipole Moments (EDMs), and tests of CPT conservation in particle-antiparticle properties, in particular antiprotonic atoms.

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Weak interaction symmetries with atom traps

Cited by 13 publications

References 34 publications

Tensor interaction constraints fromβ-decay recoil spin asymmetry of trapped atoms

Tensor interaction constraints fromβ-decay recoil spin asymmetry of trapped atoms

Fundamental interactions

Tests of fundamental symmetries and interactions – using nuclei and lasers

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