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Improved Limit on Tensor Currents in the Weak Interaction from Li8 β Decay
Here, the electroweak interaction in the standard model is described by a pure vector-axial-vector structure, though any Lorentz-invariant component could contribute. In this Letter, we present the most precise measurement of tensor currents in the low-energy regime by examining the $β-\bar{ν}$ corr...
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| Published in: | Physical review letters 2022-05, Vol.128 (20) |
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| creator | Burkey, M. T. Savard, G. Gallant, A. T. Scielzo, N. D. Clark, J. A. Hirsh, T. Y. Varriano, L. Sargsyan, G. H. Launey, K. D. Brodeur, M. Burdette, D. P. Heckmaier, E. Joerres, K. Klimes, J. W. Kolos, K. Laminack, A. Leach, K. G. Levand, A. F. Longfellow, B. Maaß, B. Marley, S. T. Morgan, G. E. Mueller, P. Orford, R. Padgett, S. W. Pérez Galván, A. Pierce, J. R. Ray, D. Segel, R. Siegl, K. Sharma, K. S. Wang, B. S. |
| description | Here, the electroweak interaction in the standard model is described by a pure vector-axial-vector structure, though any Lorentz-invariant component could contribute. In this Letter, we present the most precise measurement of tensor currents in the low-energy regime by examining the $β-\bar{ν}$ correlation of trapped 8Li ions with the Beta-decay Paul Trap. We find $a_{β\barν}$ = - 0.3325 ± 0.0013stat ± 0.0019syst at 1σ for the case of coupling to right-handed neutrinos (CT = -C$^{'}_{T}$), which is consistent with the standard model prediction. |
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H. ; Launey, K. D. ; Brodeur, M. ; Burdette, D. P. ; Heckmaier, E. ; Joerres, K. ; Klimes, J. W. ; Kolos, K. ; Laminack, A. ; Leach, K. G. ; Levand, A. F. ; Longfellow, B. ; Maaß, B. ; Marley, S. T. ; Morgan, G. E. ; Mueller, P. ; Orford, R. ; Padgett, S. W. ; Pérez Galván, A. ; Pierce, J. R. ; Ray, D. ; Segel, R. ; Siegl, K. ; Sharma, K. S. ; Wang, B. S.</creator><creatorcontrib>Burkey, M. T. ; Savard, G. ; Gallant, A. T. ; Scielzo, N. D. ; Clark, J. A. ; Hirsh, T. Y. ; Varriano, L. ; Sargsyan, G. H. ; Launey, K. D. ; Brodeur, M. ; Burdette, D. P. ; Heckmaier, E. ; Joerres, K. ; Klimes, J. W. ; Kolos, K. ; Laminack, A. ; Leach, K. G. ; Levand, A. F. ; Longfellow, B. ; Maaß, B. ; Marley, S. T. ; Morgan, G. E. ; Mueller, P. ; Orford, R. ; Padgett, S. W. ; Pérez Galván, A. ; Pierce, J. R. ; Ray, D. ; Segel, R. ; Siegl, K. ; Sharma, K. S. ; Wang, B. S. ; Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States) ; Oak Ridge National Lab. 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(ANL), Argonne, IL (United States)</creatorcontrib><title>Improved Limit on Tensor Currents in the Weak Interaction from Li8 β Decay</title><title>Physical review letters</title><description>Here, the electroweak interaction in the standard model is described by a pure vector-axial-vector structure, though any Lorentz-invariant component could contribute. In this Letter, we present the most precise measurement of tensor currents in the low-energy regime by examining the $β-\bar{ν}$ correlation of trapped 8Li ions with the Beta-decay Paul Trap. We find $a_{β\barν}$ = - 0.3325 ± 0.0013stat ± 0.0019syst at 1σ for the case of coupling to right-handed neutrinos (CT = -C$^{'}_{T}$), which is consistent with the standard model prediction.</description><subject>beta decay</subject><subject>cooling</subject><subject>NUCLEAR PHYSICS AND RADIATION PHYSICS</subject><subject>nuclear tests of fundamental interactions</subject><subject>radioactive beams</subject><subject>trapped ions</subject><subject>trapping</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqNy00KwjAQQOEgCtafOwzuC4nVNl1XxaLLgssS4pRGbSLJKHgtD-KZ7MIDuHqb7w1YJHiWx5kQqyGLOE9EnHOejdkkhAvnXCxTGbFD2d29e-IZjqYzBM5ChTY4D8XDe7QUwFigFuGE6gqlJfRKk-ld413XXxI-b9igVq8ZGzXqFnD-65Qtdtuq2McukKmDNoS61c5a1FQLmUq5lslf6AteLT4J</recordid><startdate>20220519</startdate><enddate>20220519</enddate><creator>Burkey, M. 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S.</creator><general>American Physical Society (APS)</general><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/000000019570696X</orcidid></search><sort><creationdate>20220519</creationdate><title>Improved Limit on Tensor Currents in the Weak Interaction from Li8 β Decay</title><author>Burkey, M. T. ; Savard, G. ; Gallant, A. T. ; Scielzo, N. D. ; Clark, J. A. ; Hirsh, T. Y. ; Varriano, L. ; Sargsyan, G. H. ; Launey, K. D. ; Brodeur, M. ; Burdette, D. P. ; Heckmaier, E. ; Joerres, K. ; Klimes, J. W. ; Kolos, K. ; Laminack, A. ; Leach, K. G. ; Levand, A. F. ; Longfellow, B. ; Maaß, B. ; Marley, S. T. ; Morgan, G. E. ; Mueller, P. ; Orford, R. ; Padgett, S. W. ; Pérez Galván, A. ; Pierce, J. R. ; Ray, D. ; Segel, R. ; Siegl, K. ; Sharma, K. S. ; Wang, B. 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S.</creatorcontrib><creatorcontrib>Wang, B. S.</creatorcontrib><creatorcontrib>Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)</creatorcontrib><creatorcontrib>Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)</creatorcontrib><creatorcontrib>Argonne National Lab. (ANL), Argonne, IL (United States)</creatorcontrib><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Burkey, M. T.</au><au>Savard, G.</au><au>Gallant, A. T.</au><au>Scielzo, N. D.</au><au>Clark, J. A.</au><au>Hirsh, T. Y.</au><au>Varriano, L.</au><au>Sargsyan, G. H.</au><au>Launey, K. D.</au><au>Brodeur, M.</au><au>Burdette, D. P.</au><au>Heckmaier, E.</au><au>Joerres, K.</au><au>Klimes, J. W.</au><au>Kolos, K.</au><au>Laminack, A.</au><au>Leach, K. G.</au><au>Levand, A. F.</au><au>Longfellow, B.</au><au>Maaß, B.</au><au>Marley, S. T.</au><au>Morgan, G. E.</au><au>Mueller, P.</au><au>Orford, R.</au><au>Padgett, S. W.</au><au>Pérez Galván, A.</au><au>Pierce, J. R.</au><au>Ray, D.</au><au>Segel, R.</au><au>Siegl, K.</au><au>Sharma, K. S.</au><au>Wang, B. S.</au><aucorp>Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)</aucorp><aucorp>Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)</aucorp><aucorp>Argonne National Lab. (ANL), Argonne, IL (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improved Limit on Tensor Currents in the Weak Interaction from Li8 β Decay</atitle><jtitle>Physical review letters</jtitle><date>2022-05-19</date><risdate>2022</risdate><volume>128</volume><issue>20</issue><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Here, the electroweak interaction in the standard model is described by a pure vector-axial-vector structure, though any Lorentz-invariant component could contribute. In this Letter, we present the most precise measurement of tensor currents in the low-energy regime by examining the $β-\bar{ν}$ correlation of trapped 8Li ions with the Beta-decay Paul Trap. We find $a_{β\barν}$ = - 0.3325 ± 0.0013stat ± 0.0019syst at 1σ for the case of coupling to right-handed neutrinos (CT = -C$^{'}_{T}$), which is consistent with the standard model prediction.</abstract><cop>United States</cop><pub>American Physical Society (APS)</pub><orcidid>https://orcid.org/000000019570696X</orcidid><oa>free_for_read</oa></addata></record> |
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| source | American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list) |
| subjects | beta decay cooling NUCLEAR PHYSICS AND RADIATION PHYSICS nuclear tests of fundamental interactions radioactive beams trapped ions trapping |
| title | Improved Limit on Tensor Currents in the Weak Interaction from Li8 β Decay |
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