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Title: Stopped, Bunched Beams for the TwinSol Facility

Abstract

Tests of the unitarity of the Cabbibo-Kobayashi-Masakawa (CKM) matrix offer an important avenue for constraining the Standard Model of the electroweak interaction. Several methods are currently used to determine V-ud, the largest element in the top-row normalization test. One such method is through the study of superallowed T =1/2 mixed mirror transitions, which offers a complementary method to the current most-precise value that is determined from superallowed pure Fermi 0(+) 0(+) transitions. The precision currently achievable by this method is currently limited by the very low number of transitions for which the Fermi-to-Gamow-Teller mixing ratio has been measured. St. Benedict, the Superallowed Transition Beta-Neutrino Decay-Ion-Coincidence Trap, is currently under development at the University of Notre Dame's Nuclear Science Laboratory, and intends to determine for a range of new isotopes through measurements of the -neutrino asymmetry parameter a using a linear Paul trap. In order to trap these ions, the fast, continuous secondary beam separated by the TwinSol twin solenoid separator must be thermalized and bunched. The system through which this will be done will feature a large-volume gas cell in which the ions will be thermalized, a double-RF-funnel-based ion guide system for the extraction of the ions, and a radiofrequencymore » quadrupole (RFQ) to provide cooled ion bunches for capture in the Paul trap.« less

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Nuclear Physics
OSTI Identifier:
1523388
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Conference: 7th International Conference on Trapped Charged Particles and Fundamental Physics , 09/30/18 - 10/05/18, Traverse City, MI, US
Country of Publication:
United States
Language:
English
Subject:
RFQ; beam cooling; fundamental symmetries; ion trapping; mirror transitions; radioactive ion beams

Citation Formats

Valverde, A. A., Brodeur, M., Burdette, D. P., Clark, J. A., Klimes, J. W., Lascar, D., O', Malley, P. D., Ringle, R., Savard, G., and Varentsov, V. Stopped, Bunched Beams for the TwinSol Facility. United States: N. p., 2019. Web. doi:10.1007/s10751-019-1591-x.
Valverde, A. A., Brodeur, M., Burdette, D. P., Clark, J. A., Klimes, J. W., Lascar, D., O', Malley, P. D., Ringle, R., Savard, G., & Varentsov, V. Stopped, Bunched Beams for the TwinSol Facility. United States. doi:10.1007/s10751-019-1591-x.
Valverde, A. A., Brodeur, M., Burdette, D. P., Clark, J. A., Klimes, J. W., Lascar, D., O', Malley, P. D., Ringle, R., Savard, G., and Varentsov, V. Mon . "Stopped, Bunched Beams for the TwinSol Facility". United States. doi:10.1007/s10751-019-1591-x.
@article{osti_1523388,
title = {Stopped, Bunched Beams for the TwinSol Facility},
author = {Valverde, A. A. and Brodeur, M. and Burdette, D. P. and Clark, J. A. and Klimes, J. W. and Lascar, D. and O' and Malley, P. D. and Ringle, R. and Savard, G. and Varentsov, V.},
abstractNote = {Tests of the unitarity of the Cabbibo-Kobayashi-Masakawa (CKM) matrix offer an important avenue for constraining the Standard Model of the electroweak interaction. Several methods are currently used to determine V-ud, the largest element in the top-row normalization test. One such method is through the study of superallowed T =1/2 mixed mirror transitions, which offers a complementary method to the current most-precise value that is determined from superallowed pure Fermi 0(+) 0(+) transitions. The precision currently achievable by this method is currently limited by the very low number of transitions for which the Fermi-to-Gamow-Teller mixing ratio has been measured. St. Benedict, the Superallowed Transition Beta-Neutrino Decay-Ion-Coincidence Trap, is currently under development at the University of Notre Dame's Nuclear Science Laboratory, and intends to determine for a range of new isotopes through measurements of the -neutrino asymmetry parameter a using a linear Paul trap. In order to trap these ions, the fast, continuous secondary beam separated by the TwinSol twin solenoid separator must be thermalized and bunched. The system through which this will be done will feature a large-volume gas cell in which the ions will be thermalized, a double-RF-funnel-based ion guide system for the extraction of the ions, and a radiofrequency quadrupole (RFQ) to provide cooled ion bunches for capture in the Paul trap.},
doi = {10.1007/s10751-019-1591-x},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {4}
}

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