The CMS experiment has a wide program on heavy flavor physics, covering production and decay properties of B hadrons and quarkonia, as well as searches and study of exotic hadrons and rare decays. In this talk, we present precise measurements of B hadron lifetimes, that are good as or better than previous measurements. Recent measurements of the Lambda_b polarization and angular parameters in...
There has been persistent ($>3\sigma$) disagreement between the Standard Model prediction and experimental measurements of $R_{D^{(*)} }=\mathcal{B}(B \rightarrow D^{(*)} \tau \nu_\tau)/\mathcal{B}(B \rightarrow D^{(*)} l \nu_l)(l=e,\mu)$. This anomaly may be addressed by introducing interactions beyond the Standard Model involving new states, such as leptoquarks. In this talk, I look at the...
We present the effects of new physics operators with different Lorentz structures on the inclusive $B \to X_c\tau \bar{\nu}$ decay and make predictions for the ratio of total decay rates, $R(X_c)$ and some differential observables including the forward-backward asymmetry. We include $\mathcal{O}(\alpha_s)$ radiative and $1/m_b$ non-perturbative corrections to these observables in the Standard...
There are presently many different anomalies in $B$-physics. One such anomaly is ${R_{K^{(*)}}}$, the apparent deficit of decays $B \rightarrow K \mu \mu$ compared to $B \rightarrow K e e$. In this talk, I will attempt to explain this apparent violation of lepton flavour universality within a supersymmetric framework. To do so, I will invoke the $R$-partiy violating superpotential term...
We search for the decay $B_s \to \eta^\prime K_s$ using $121.4 {\rm
~fb^{-1}}$ of data collected at the $\Upsilon(5S)$ resonance with the
Belle detector at the KEKB asymmetric-energy electron-positron collider.
This decay is suppressed in the Standard Model of particle physics and
proceeds through $b \to u$ and penguin transitions, which are sensitive
to new physics. The expected...
The momentum distributions for the $D^0\bar{D}^0\pi^0$ and $D^0\bar{D}^0\gamma$ decay modes of the X(3872) resonance are calculated with the widths of $D^{*0}$ and X(3872) taken into account. The momentum distributions for the $D^0$ have a double peaked structure, with the first peak below 10 MeV and the second peak near 40 MeV for the $D^0\bar{D}^0\pi^0$ decay mode and near 140 MeV for the...
The standard model does not provide an explanation of the observed alignment of quark flavors i.e. why are the up and down quarks approximately aligned in their weak interactions according to their masses? We suggest a resolution of this puzzle using a combination of left-right and Peccei-Quinn (PQ) symmetry. The quark mixings in this model vanish at the tree level and arise out of one loop...
I would briefly describe what Quantum Critical Higgs models are, what some of their five dimensional dual models are, and their signature is in the gg --> ZZ —> 4l Chanel.
