1.

Semileptonic ${D}_{\left(s\right)}$meson decays in the light of recent data
/ Soni, N. R. ; Ivanov, M. A. ; Körner, J. G. ; Pandya, J. N. ; et al
Inspired by recent improved measurements of charm semileptonic decays at BESIII, we study a large set of $D\left({D}_{s}\right)$meson semileptonic decays where the hadron in the final state is one of ${D}^{0}$, $\rho $, $\omega $, ${\eta}^{(\prime )}$ in the case of ${D}^{+}$ decays, and ${D}^{0}$, $\varphi $, ${K}^{0}$, ${K}^{*}(892{)}^{0}$, ${\eta}^{(\prime )}$ in the case of ${D}_{s}^{+}$ decays. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.114031
arXiv:1810.11907
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2.

Coordinate space calculation of two and threeloop sunrisetype diagrams, elliptic functions and truncated Bessel integral identities
/ Groote, S. ; Körner, J.G.
We integrate threeloop sunrisetype vacuum diagrams in D0=4 dimensions with four different masses using configuration space techniques. [...]
Published in Nuclear Physics B 938 (2019) 416425
10.1016/j.nuclphysb.2018.11.023
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3.

Nonleptonic twobody decays of single heavy baryons ${\Lambda}_{Q}$, ${\Xi}_{Q}$, and ${\Omega}_{Q}$ ($Q=b$, $c$) induced by $W$ emission in the covariant confined quark model
/ Gutsche, Thomas ; Ivanov, Mikhail A. ; Körner, Jürgen G. ; Lyubovitskij, Valery E.
We have made a survey of heavytoheavy and heavytolight nonleptonic heavy baryon twobody decays and have identified those decays that proceed solely via $W$boson emission, i.e., via the tree graph contribution. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.074011
arXiv:1806.11549
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4.

Analyzing lepton flavor universality in the decays ${\Lambda}_{b}\to {\Lambda}_{c}^{(*)}({\frac{1}{2}}^{\pm},{\frac{3}{2}}^{})+\ell {\overline{\nu}}_{\ell}$
/ Gutsche, Thomas ; Ivanov, Mikhail A. ; Körner, Jürgen G. ; Lyubovitskij, Valery E. ; et al
Lepton flavor universality can be tested in the semileptonic decays ${\Lambda}_{b}\to {\Lambda}_{c}^{(*)}$, where ${\Lambda}_{c}^{(*)}$ denotes either the ground state ${\Lambda}_{c}\left(2286\right)$ (with ${J}^{P}=1/{2}^{+}$) or its orbital excitations ${\Lambda}_{c}\left(2595\right)$ (with ${J}^{P}=1/{2}^{}$) and ${\Lambda}_{c}\left(2625\right)$ (with ${J}^{P}=3/{2}^{}$). [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.053003
arXiv:1807.11300
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5.

NNLO QCD corrections to the polarized top quark decay $t(\uparrow )\to {X}_{b}+{W}^{+}$
/ Czarnecki, A. ; Groote, S. ; Körner, J. G. ; Piclum, J. H.
We compute the nexttonexttoleading order (NNLO) QCD corrections to the decay $t(\uparrow )\to {X}_{b}+{W}^{+}$ of a polarized top quark. [...]
Published in Physical Review D 97 (2018)
10.1103/PhysRevD.97.094008
arXiv:1803.03658
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6.

$T$odd correlations in polarized top quark decays in the sequential decay $t(\uparrow )\to {X}_{b}+{W}^{+}(\to {\ell}^{+}+{\nu}_{\ell})$ and in the quasithreebody decay $t(\uparrow )\to {X}_{b}+{\ell}^{+}+{\nu}_{\ell}$
/ Fischer, M. ; Groote, S. ; Körner, J. G.
We identify the $T$odd structure functions that appear in the description of polarized top quark decays in the sequential decay $t(\uparrow )\to {X}_{b}+{W}^{+}(\to {\ell}^{+}+{\nu}_{\ell})$ (two structure functions) and the quasithreebody decay $t(\uparrow )\to {X}_{b}+{\ell}^{+}+{\nu}_{\ell}$ (one structure function). [...]
Published in Physical Review D 97 (2018)
10.1103/PhysRevD.97.093001
arXiv:1802.02492
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7.

Implications of new physics in the decays ${B}_{c}\to (J/\psi ,\text{}{\eta}_{c})\tau \nu $
/ Tran, C. T. ; Ivanov, M. A. ; Körner, J. G. ; Santorelli, P.
We study the semileptonic decays of the ${B}_{c}$ meson into final charmonium states within the standard model and beyond. [...]
Published in Phys. Rev. D 97 (2018)
10.1103/PhysRevD.97.054014
arXiv:1801.06927
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8.

Erratum to: $\mathit{O}\mathbf{(}{\mathit{\alpha}}_{\mathit{s}}\mathbf{)}$ corrections to the polar angle dependence of the longitudinal spin–spin correlation asymmetry in ${\mathit{e}}^{\mathbf{+}}{\mathit{e}}^{\mathbf{}}\mathbf{\to}\mathit{q}\overline{\mathit{q}}$
/ Groote, S. ; Körner, J. G. ; Leyva, J. A.
Published in EPJC 74 (2014) 2789
10.1140/epjc/s1005201427893
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