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Double-lepton polarization asymmetries in Lambda(b)->Lambda l(+)l(-) decay
Date
2004-12-01
Author
Alıyev, Tahmasıb
Savcı, Mustafa
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Double-lepton polarization asymmetries in Lambda(b) --> Lambdal(+)l(-) decay are calculated using a general, model independent form of the effective Hamiltonian. The sensitivities of these asymmetries to the new Wilson coefficients are studied in detail. Furthermore, the correlations between averaged double-lepton polarization asymmetry and branching ratio are analyzed. It is shown that there exist certain regions of the new Wilson coefficients where new physics can be established by measuring the double-lepton polarization asymmetries only.
Subject Keywords
Physics and Astronomy (miscellaneous)
,
Engineering (miscellaneous)
URI
https://hdl.handle.net/11511/39285
Journal
EUROPEAN PHYSICAL JOURNAL C
DOI
https://doi.org/10.1140/epjc/s2004-02045-6
Collections
Department of Physics, Article
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We study the Schwinger effect, in which the external field having a spatiotemporal profile creates electron-positron pairs via multidimensional quantum tunneling. Our treatment is based on the trace formula for the QED effective action, whose imaginary part is represented by a sum over complex worldline solutions. The worldlines are multiperiodic, and the periods of motion collectively depend on the strength of spatial and temporal inhomogeneity. We argue that the classical action that leads to the correct ...
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BibTeX
T. Alıyev and M. Savcı, “Double-lepton polarization asymmetries in Lambda(b)->Lambda l(+)l(-) decay,”
EUROPEAN PHYSICAL JOURNAL C
, pp. 283–295, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39285.