Phenomenology 2020 Symposium

Session

Flavor I

12

4 May 2020, 16:30

207 (Lawrence Hall)

Conveners

Flavor I

• Simon Eydelman (Budker Institute of Nuclear Physics (RU))

1094. Flavor Mini-review

Joachim Brod (University of Cincinnati)

04/05/2020, 16:30

Flavor

Mini-Review

I will give a brief introduction to flavor physics theory, with a focus on recent developments in B, D, and K decays.

1030. A low-scale flavon model with a ZN symmetry

Junichiro Kawamura (Keio University)

04/05/2020, 17:00

Flavor

Parallel Talk

We propose a model that explains the fermion mass hierarchy by the Froggatt-Nielsen mechanism with a discrete $Z_N$ discrete flavor symmetry. As a concrete model, we study a supersymmetric model with a single flavon coupled to the minimal supersymmetric Standard Model. Flavon develops a TeV scale vacuum expectation value for realizing flavor hierarchy, an appropriate $\mu$-term and the...

931. A $\mathcal{T}_{13}$ Family Symmetry Model for Quarks and Leptons

Moinul Hossain Rahat (University of Florida)

04/05/2020, 17:15

BSM

Parallel Talk

I will propose a phenomenologically successful $SU(5)$ Yukawa texture for both quarks and leptons that explains their GUT-scale mass ratios and mixing angles. Together with a complex-tribimaximal (TBM) seesaw mixing, this texture reproduces the neutrino mixing angles and predicts both Dirac and Majorana leptonic $CP$ violation. I will show that this framework can be accommodated in a family...

896. Revisiting $X(3872) \to D^0 \bar{D}^0 \pi^0$ in XEFT

Lin Dai (Duke University)

04/05/2020, 17:30

Flavor

Parallel Talk

The calculation of the decay $X(3872)\to D^0 \bar{D}^0 \pi^0$ in
effective field theory is revisited to include final state $\pi^0 D^0$,
$\pi^0 \bar{D}^0$ and $D^0\bar{D}^0$ rescattering diagrams. These introduce significant
uncertainty into the prediction for the partial width as a function of
the binding energy. The differential distribution in the pion energy is
also...

1048. Charm-meson Triangle Singularity in $e^+e^-$ Annihilation into $D^{∗0}\bar{D}^0+\gamma$

Dr Jun Jiang

04/05/2020, 17:45

Flavor

Parallel Talk

We calculate the cross section for $e^+e^-$ annihilation into $D^{∗0}\bar{D}^0+\gamma$ at center-of-mass energies near the $D^{∗0}\bar{D}^{∗0}$ threshold under the assumption that $X(3872)$ is a weakly bound charm meson molecule. The Dalitz plot has a $\bar{D}^{∗0}$ resonance band in the squared invariant mass $t$ of $\bar{D}^0 \gamma$. In the limit as the decay width of the $D^{∗0}$ goes to...

1050. Doubly Heavy Tetraquarks in the Heavy-Diquark Limit with Error Bars

Liping He (Ohio State University)

04/05/2020, 18:00

QCD & Electroweak

Parallel Talk

In the heavy-diquark limit, the two heavy quarks in a doubly heavy baryon or a doubly heavy tetraquark are bound by their color-Coulomb potential into a compact core. The doubly heavy hadron is related by an approximate symmetry to the heavy hadron obtained by replacing the diquark core by a heavy antiquark. The masses of heavy hadrons can be expanded in inverse powers of the heavy quark mass....

1067. ATLAS results on quarkonia and heavy flavour production (including exotics)

Tatiana Lyubushkina (Joint Institute for Nuclear Research (RU))

04/05/2020, 18:15

Flavor

Parallel Talk

The associated production of vector boson with quarkonia is a key observable for understanding the quarkonium production mechanisms, including the separation of single and double parton scattering components. This talk will present the latest measurements from ATLAS on quarkonium production, including associated production, and recent results from heavy flavour production. In addition, recent...