β-Nuclear-Recoil Correlation from ^{6}He Decay in a Laser Trap.

Autor: Müller P; Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA., Bagdasarova Y; Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98105, USA., Hong R; Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98105, USA., Leredde A; Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA., Bailey KG; Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA., Fléchard X; Normandie Univ, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France., García A; Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98105, USA., Graner B; Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98105, USA., Knecht A; Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98105, USA.; Paul Scherrer Institute, 5232 Villigen PSI, Switzerland., Naviliat-Cuncic O; Normandie Univ, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France.; National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA., O'Connor TP; Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA., Sternberg MG; Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98105, USA., Storm DW; Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98105, USA., Swanson HE; Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98105, USA., Wauters F; Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98105, USA.; Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany., Zumwalt DW; Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98105, USA.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2022 Oct 28; Vol. 129 (18), pp. 182502.
DOI: 10.1103/PhysRevLett.129.182502
Abstrakt: We report the first precise measurement of a β-recoil correlation from a radioactive noble gas (^{6}He) confined via a magneto-optical trap. The measurement is motivated by the search for exotic tensor-type contributions to the charged weak current. Interpreted as tensor currents with right-handed neutrinos, the measurements yield |C_{T}/C_{A}|^{2}≤0.022 (90% confidence limit, C.L.). On the other hand, for left-handed neutrinos the limits are 0.007
Databáze: MEDLINE