1. J.P. Lees et al. [BaBar Collaboration], Evidence for an excess of
$$\bar{B} \rightarrow D^{(\ast )} \tau ^-\bar{\nu }_\tau $$
B
¯
→
D
(
*
)
τ
-
ν
¯
τ
decays. Phys. Rev. Lett. 109, 101802 (2012)
2. J.P. Lees et al. [BaBar Collaboration], Measurement of an Excess of
$$\bar{B} \rightarrow D^{(\ast )}\tau ^- \bar{\nu }_\tau $$
B
¯
→
D
(
*
)
τ
-
ν
¯
τ
decays and implications for charged Higgs Bosons. Phys. Rev. D 88, 072012 (2013)
3. M. Huschle et al. [Belle Collaboration], Measurement of the branching ratio of
$$\bar{B} \rightarrow D^{(\ast )} \tau ^- \bar{\nu }_\tau $$
B
¯
→
D
(
*
)
τ
-
ν
¯
τ
relative to
$$\bar{B} \rightarrow D^{(\ast )} \ell ^- \bar{\nu }_\ell $$
B
¯
→
D
(
*
)
ℓ
-
ν
¯
ℓ
decays with hadronic tagging at Belle. Phys. Rev. D 92, 072014 (2015)
4. Y. Amhis et al. [Heavy Flavor Averaging Group (HFAG)], Averages of
$$b$$
b
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$$c$$
c
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$$\tau $$
τ
-lepton properties as of summer 2014. For the update of the average of
$$\cal{R}(D)$$
R
(
D
)
one can see the web page.
arXiv:1412.7515
[hep-ex].
http://www.slac.stanford.edu/xorg/hfag/semi/index.html
5. S. Fajfer, J.F. Kamenik, I. Nisandzic, On the
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*
τ
ν
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τ
sensitivity to new physics. Phys. Rev. D 85, 094025 (2012)