CP violation and CKM studies (and first LHCb Run II results)

Abstract

The LHC is the new b-hadron factory and will be dominating flavour physics until the start of Belle II, and beyond in many decay modes. While the $B$ factories and Tevatron experiments are still analysing their data, ATLAS, CMS and LHCb are producing interesting new results in CP violation and rare decays, that set strong constraints on models beyond that SM and exhibit some discrepancies with the SM predictions. The LHCb collaboration used the LHC 50 ns ramp-up period of July 2015 to measure the double-differential $J/\psi$, $J/\psi$-from-$b$-hadron and charm cross-sections at $\sqrt{s}=13$ TeV. Both measurements were performed directly on triggered candidates using a reduced data format that does not require offline processing.

Proceedings of the EPS-HEP conference 2015, Vienna

References in corpus (33)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• PYTHIA 6.4 Physics and Manual
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Test of lepton universality using $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• Measurement of the branching ratio of $\bar{B}\to D^{(\ast )}{\tau }^{-}{\bar{\nu }}_{\tau }$ relative to $\bar{B}\to D^{(\ast )}{\ell }^{-}{\bar{\nu }}_{\ell }$ decays with hadronic tagging at Belle
• Measurement of the ratio of branching fractions $\mathcal{B}({\overline{B}}^0\to D^{\ast +}{\tau }^{-}{\overline{\nu }}_{\tau })/\mathcal{B}({\overline{B}}^0\to D^{\ast +}{\mu }^{-}{\overline{\nu }}_{\mu })$
• Current status of the Standard Model CKM fit and constraints on $\Delta F=2$ New Physics
• ${\Lambda }_b\to p{\ell }^{-}{\bar{\nu }}_{\ell }$ and ${\Lambda }_b\to {\Lambda }_c{\ell }^{-}{\bar{\nu }}_{\ell }$ form factors from lattice QCD with relativistic heavy quarks
• Branching Ratio Measurements of $B_s$ Decays
• Determination of the quark coupling strength $|V_{ub}|$ using baryonic decays
• Measurements of prompt charm production cross-sections in $pp$ collisions at $\sqrt{s}=13\mathrm{TeV}$
• $|V_{ub}|$ from $B\to \pi \ell \nu$ decays and (2+1)-flavor lattice QCD
• Dalitz plot analysis of $B^0\to {\overline{D}}^0{\pi }^{+}{\pi }^{-}$ decays
• Measurement of forward $J/\psi$ production cross-sections in $pp$ collisions at $\sqrt{s}=13$ TeV
• The Golden Modes B^0 -> J/psi K_{S,L} in the Era of Precision Flavour Physics
• Measurement of the form factors of the decay B0 -> D*- ell+ nu and determination of the CKM matrix element |Vcb|
• $B_{s,d}\to \pi \pi ,\pi K,KK$: Status and Prospects
• Measurement of the CP-violating weak phase phi[s] and the decay width difference Delta Gamma[s] using the Bs to J/Psi phi(1020) decay channel in pp collisions at sqrt(s) = 8 TeV
• Measurement of the CP-violating phase $\beta$ in $B^0\to J/\psi {\pi }^{+}{\pi }^{-}$ decays and limits on penguin effects
• Penguin contributions to CP phases in $B_{d,s}$ decays to charmonium
• Measurement of $CP$ violation in $B^0\to J/\psi K_S^0$ decays
• Extracting gamma and Penguin Topologies through CP Violation in B_s^0 -> J/psi K_S
• Flavour tagged time dependent angular analysis of the $B_s\to J/\psi \varphi$ decay and extraction of $\Delta \Gamma$ and the weak phase ${\varphi }_s$ in ATLAS
• Measurement of $CP$ violation and constraints on the CKM angle $\gamma$ in $B^{\pm }\to D{K}^{\pm }$ with $D\to K_S^0{\pi }^{+}{\pi }^{-}$ decays
• Gluon PDF constraints from the ratio of forward heavy quark production at the LHC at \sqrt{S}=7 and 13 TeV
• Measurement of CP violation parameters in B0->D K*0 decays
• $B$ flavour tagging using charm decays at the LHCb experiment
• Measurement of $CP$ violation parameters and polarisation fractions in $B_s^0\to J/\psi {\overline{K}}^{\ast 0}$ decays
• Measurement of the time-dependent CP asymmetry in B0 -> J/ψ KS0 decays
• Measurement of the time-integrated $CP$ asymmetry in $D^0\to K_S^0{K}_S^0$ decays
• Observation of the $B^0\to {\rho }^0{\rho }^0$ decay from an amplitude analysis of $B^0\to ({\pi }^{+}{\pi }^{-})({\pi }^{+}{\pi }^{-})$ decays
• Towards more precise determinations of the CKM phase $\beta$
• Study of $B^{-}\to D{K}^{-}{\pi }^{+}{\pi }^{-}$ and $B^{-}\to D{\pi }^{-}{\pi }^{+}{\pi }^{-}$ decays and determination of the CKM angle $\gamma$

Cited by in corpus (2)

• Flavor constraints on the Two Higgs Doublet Models of $Z_2$ symmetric and aligned types
• Quark CP-Phase and Froggatt-Nielsen Mechanism