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Your search keyword '"Ashery, D."' showing total 9 results
Start Over Author "Ashery, D." Topic nuclear physics
9 results on '"Ashery, D."'

1. Pion Absorption on $^{3}He$ at Low Energies

Author

Hahn, H, Altman, A, Ashery, D, Gefen, G, Gill, D R, Johnson, R R, Levy-Nathansohn, R, Moinester, M A, Sevior, M E, and Trellé, R P

Subjects
Nuclear Physics
Published
1996

2. The β+ decay of 37K as a multi-faceted probe of fundamental physics.

Author

Melconian, D., Behling, R. S., Behr, J. A., Ashery, D., Gorelov, A., Jackson, K. P., Kong, T., Mehlman, M., Pearson, M. R., and Shidling, P.

Subjects
NUCLEAR physics, RADIOACTIVE decay, NUCLEAR energy, STANDARD model (Nuclear physics), PARTICLES (Nuclear physics), ANGULAR distribution (Nuclear physics), NUCLEAR spin, PHYSICAL measurements
Abstract

Precision β decay experiments represent an important and complimentary approach to high-energy searches for physics outside the 'Standard Model', our current understanding of fundamental particles and their interactions. The mirror decay of 37K provides an excellent probe with which to search for new physics. The ft value of this (as well as other T = 1/2 mirror transitions) can be used to provide a measurement of the value of the Vud element of the CKM mass-mixing matrix, complementing the value obtained from superallowed pure Fermi decays. In addition, the polarized angular distribution parameters are sensitive to a variety of possible new physics: the β and ν asymmetries can be used to search for right-handed currents in the charged weak interaction, and their energy-dependences are sensitive to second-class currents forbidden in the Standard Model. Time-reversal symmetry can also be tested by a precision measurement of the triple-vector correlation between the initial nuclear spin and the momenta of the leptons. An overview of the variety of physics that can be probed using laser-cooled 37K and the techniques used to perform the precision measurements is presented. [ABSTRACT FROM AUTHOR]

Published
2011
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3. Weak interaction symmetries with atom traps.

Author

Behr, J. A.., Gorelov, A., Melconian, D., Trinczek, M., Alford, W. P., Ashery, D., Bricault, P. G., Courneyea, L., D'Auria, J. M., Deutsch, J., Dilling, J., Dombsky, M., Dubé, P., Glück, F., Gryb, S., Gu, S., Häusser, O., Jackson, K. P., Lee, B., and Mills, A.

Subjects
LASER cooling, WEAK interactions (Nuclear physics), NUCLEAR reactions, NUCLEAR physics, DIPOLE moments
Abstract

Neutral atoms trapped with modern laser cooling techniques offer the promise of improving several broad classes of weak interaction experiments with radioactive isotopes. For nuclear β decay, demonstrated trap techniques include neutrino momentum measurements from beta-recoil coincidences, along with methods to produce highly polarized samples. These techniques enable experiments to search for non-Standard Model interactions, test whether parity symmetry is maximally violated, search for 2nd-class tensor and other tensor interactions, and search for new sources of time reversal violation. Ongoing efforts at TRIUMF, Berkeley, and Los Alamos will be highlighted. Trap experiments involving fundamental symmetries in atomic physics, such as time-reversal violating electric dipole moments and neutral current weak interactions, will be briefly mentioned. [ABSTRACT FROM AUTHOR]

Published
2005
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5. Pion Absorption on $^{3}He$ at 65 MeV

Author

Aniol, K A, Johnson, R R, Tacik, R, Gyles, W, Barnett, B, Roser, H W, Ashery, D, Levenson, S, Alster, J, Altman, A, Lichtenstadt, J, Moinester, M A, Gill, D R, Vincent, J, Sobie, Randall J, and Gubler, H P

Subjects
Nuclear Physics
Published
1984

6. The pi- + $^{3}$He --> n + d reaction at 65 and 85 MeV

Author

Aniol, K A, Altman, A, Röser, H, Tacik, R, Johnson, R R, Gyles, W, Barnett, B, Ashery, D, Moinester, M A, Alster, J, Lichtenstadt, J, Gill, D, Vicent, J L, Levenson, S, Piasetzky, E, Sobie, Randall J, and Gubler, H P

Subjects
Nuclear Physics
Published
1984

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