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New physics effects in tree-level decays and the precision in the determination of the quark mixing angle γ (2015)
Journal Article
Brod, J., Lenz, A., Tetlalmatzi-Xolocotzi, G., & Wiebusch, M. (2015). New physics effects in tree-level decays and the precision in the determination of the quark mixing angle γ. Physical Review D, 92(3), Article 033002. https://doi.org/10.1103/physrevd.92.033002

We critically review the assumption that no new physics is acting in tree-level B-meson decays and study the consequences for the ultimate precision in the direct determination of the Cabibbo-Kobayashi-Maskawa (CKM) angle γ. In our exploratory study... Read More about New physics effects in tree-level decays and the precision in the determination of the quark mixing angle γ.

Lifetimes and Heavy Quark Expansion (2015)
Book Chapter
Lenz, A. (2015). Lifetimes and Heavy Quark Expansion. In I. Bigi, P. Gambino, & T. Mannel (Eds.), QCD and heavy quarks : in memoriam Nikolai Uraltsev (63-109). World Scientific Publishing

Kolya Uraltsev was one of the inventors of the Heavy Quark Expansion (HQE), that describes inclusive weak decays of hadrons containing heavy quarks and in particular lifetimes. Besides giving a pedagogic introduction into the subject, we review the d... Read More about Lifetimes and Heavy Quark Expansion.

Lifetimes and heavy quark expansion (2015)
Journal Article
Lenz, A. (2015). Lifetimes and heavy quark expansion. International Journal of Modern Physics A, 30(10), https://doi.org/10.1142/s0217751x15430058

Kolya Uraltsev was one of the inventors of the Heavy Quark Expansion (HQE), that describes inclusive weak decays of hadrons containing heavy quarks and in particular lifetimes. Besides giving a pedagogic introduction to the subject, we review the dev... Read More about Lifetimes and heavy quark expansion.