TRINAT: measuring β-decay correlations with laser-trapped atoms

Behr, J. A.; Gorelov, A.; Jackson, K. P.; Pearson, M. R.; Anholm, M.; Kong, Timothy; Behling, R. S.; Fenker, B.; Melconian, D.; Ashery, D.; Gwinner, G.

doi:10.1007/s10751-013-0887-5

Cited by 9 publications

(13 citation statements)

References 18 publications

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“…Measurements of the D coefficient are considered as part of a larger effort to measure 11 coefficients ( R) in neutron decay (Bodek et al, 2011). Measurements of D are also considered in nuclear decays (Behr et al, 2014;Liénard, 2014). The E coefficient in Eq.…”

Section: Discussionmentioning

confidence: 99%

Symmetry violations in nuclear and neutron $β$ decay

Vos,

Wilschut,

Timmermans

2015

Preprint

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The role of β decay as a low-energy probe of physics beyond the Standard Model is reviewed. Traditional searches for deviations from the Standard Model structure of the weak interaction in β decay are discussed in the light of constraints from the LHC and the neutrino mass. Limits on the violation of time-reversal symmetry in β decay are compared to the strong constraints from electric dipole moments. Novel searches for Lorentz symmetry breaking in the weak interaction in β decay are also included, where we discuss the unique sensitivity of β decay to test Lorentz invariance. We end with a roadmap for future β-decay experiments.

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Section: Discussionmentioning

confidence: 99%

Symmetry violations in nuclear and neutron $β$ decay

Vos,

Wilschut,

Timmermans

2015

Preprint

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“…Precision goal Experiment (Laboratory) Comments τ n 1.0 s; 0.1 s [210] BL2, BL3 (NIST) [210] In preparation; two phases 1.0 s; 0.3 s [214] LiNA (J-PARC) [211,214] In preparation; two phases 0.2 s [215] Gravitrap (ILL) [203,215] Apparatus being upgraded 0.3 s [201] Ezhov (ILL) [201] Under construction 0.1 s [222] PENeLOPE (Munich) [222] Being developed 0.1 s [223] UCNτ (LANL) [188,189,223,224] Ongoing 0.5 s [225] HOPE (ILL) [188,225,226] Proof of principle Ref. [263][264][265]270] Being commissioned O(0.001) [276] UCNA-Nab-Leuven (LANL) [271,272,276] Analysis ongoing ( 45 Ca) b n < 0.05 [293,294] UCNA (LANL) [390] Ongoing with A n data 0.03 [295] PERKEO III (ILL) [295] Possible with A n data 0.003 [289] Nab (LANL) [188,289,357,358] In preparation 0.001 [291] PERC (Munich) [291,292] Planned a F 0.1% [306] TRINAT (TRIUMF) [306,…”

Section: Coefficientmentioning

confidence: 99%

“…In the past decade several new results for the β-ν correlation have become available while new projects have been initiated as well. Many of these use either atom traps [306] or ion traps [162,307] that provide almost ideal source conditions for weak interaction experiments. They offer well-localized and cooled samples of particles in vacuum, that can often even be purified in situ.…”

Section: β − ν Correlationmentioning

confidence: 99%

New physics searches in nuclear and neutron β decay

González–Alonso

Naviliat‐Cuncic

Severijns

2019

Progress in Particle and Nuclear Physics

244

282

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The status of tests of the standard electroweak model and of searches for new physics in allowed nuclear β decay and neutron decay is reviewed including both theoretical and experimental developments. The sensitivity and complementarity of recent and ongoing experiments are discussed with emphasis on their potential to look for new physics. Measurements are interpreted using a model-independent effective field theory approach enabling to recast the outcome of the analysis in many specific new physics models. Special attention is given to the connection that this approach establishes with high-energy physics. A new global fit of available β-decay data is performed incorporating, for the first time in a consistent way, superallowed 0 + → 0 + transitions, neutron decay and nuclear decays. The constraints on exotic scalar and tensor couplings involving left-or right-handed neutrinos are determined while a constraint on the pseudoscalar coupling from neutron decay data is obtained for the first time as well. The values of the vector and axial-vector couplings, which are associated within the standard model to V ud and g A respectively, are also updated. The ratio between the axial and vector couplings obtained from the fit under standard model assumptions is C A /C V = −1.27510(66). The relevance of the various experimental inputs and error sources is critically discussed and the impact of ongoing measurements is studied. The complementarity of the obtained bounds with other low-and high-energy probes is presented including ongoing searches at the Large Hadron Collider.

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“…Both techniques yield similar constraints on exotic couplings with ∆ã βν ∼ 5.10 −3 for pure F transitions [5,11], and ∆ã βν ∼ 3.10 −3 for pure GT ones [4,13]. Ongoing experimental programs aim today at precision levels of 10 −3 and below [14][15][16][17][18][19][20]. The present project targets a similar goal by improving by a factor 5 or more the most precise results previously obtained from the recoil energy broadening of beta-delayed protons in the decay of 32 Ar towards its isobaric analogue state in 32 Cl [11,21,22].…”

mentioning

confidence: 89%

Simultaneous Measurements of the Beta Neutrino Angular Correlation in $^{32}$Ar Pure Fermi and Pure Gamow-Teller Transitions using Beta-Proton Coincidences

Araujo-Escalona,

Atanasov,

Fléchard

et al. 2019

Preprint

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TRINAT: measuring β-decay correlations with laser-trapped atoms

Cited by 9 publications

References 18 publications

Symmetry violations in nuclear and neutron $β$ decay

Symmetry violations in nuclear and neutron $β$ decay

New physics searches in nuclear and neutron β decay

Simultaneous Measurements of the Beta Neutrino Angular Correlation in $^{32}$Ar Pure Fermi and Pure Gamow-Teller Transitions using Beta-Proton Coincidences

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