More Synergies from Beauty, Top, $Z$ and Drell-Yan Measurements in SMEFT

Abstract

We perform a global analysis of Beauty, Top, $Z$ and Drell-Yan measurements in the framework of the Standard Model effective theory (SMEFT). We work within the minimal flavor violation (MFV) hypothesis, which relates different sectors and generations beyond the $SU(2{)}_L$-link between left-handed top and beauty quarks. We find that the constraints on the SMEFT Wilson coefficients from the combined analysis are stronger than the constraints from a fit to the individual sectors, highlighting synergies in the global approach. We also show that constraints within MFV are strengthened compared to single-generation fits. The strongest bounds are obtained for the semileptonic four-fermion triplet operator $C_{lq}^{(3)}$, probing scales as high as $18$ TeV, followed by the gluon dipole operator $C_{uG}$ with $7$ TeV, and other four-fermion and penguin operators in the multi-TeV range. Operators with left-handed quark bilinears receive order one contributions from higher orders in the MFV expansion induced by the top Yukawa coupling as a result of the FCNC $b\to s\mu \mu$ anomalies combined with the other sectors. We predict the $68\%$ credible intervals of the dineutrino branching ratios within MFV as $5.3\cdot 10^{-6}\le \mathcal{B}(B^0\to K^{\ast 0}\nu \bar{\nu })\le 12.8\cdot 10^{-6}$ and $2.5\cdot 10^{-6}\le \mathcal{B}(B^{+}\to K^{+}\nu \bar{\nu })\le 5.9\cdot 10^{-6}$, which include the respective Standard Model predictions, and are in reach of the Belle II experiment. We show how future measurements of the dineutrino branching ratios can provide insights into the structure of new physics in the global fit.

45 pages, 13 figures, v2: $B\to K$ form factors updated, conclusions unchanged, v3: clarifications on MFV expansion, $B\to K^{\ast }$ form factors updated, conclusions unchanged

References in corpus (32)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• LHAPDF6: parton density access in the LHC precision era
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Updated NNLO QCD predictions for the weak radiative B-meson decays
• $\Delta M_s$ theory precision confronts flavour anomalies
• Supersymmetric models with minimal flavour violation and their running
• Muon Colliders: Opening New Horizons for Particle Physics
• SMEFTsim 3.0 -- a practical guide
• Rare $b$ decays meet high-mass Drell-Yan
• Revisiting $B\to K^{(\ast )}\nu \bar{\nu }$ decays in the Standard Model and beyond
• Drell-Yan Tails Beyond the Standard Model
• Associated production of a top quark pair with a heavy electroweak gauge boson at NLO+NNLL accuracy
• Flavour symmetries in the SMEFT
• Associated top quark pair production with a heavy boson: differential cross sections at NLO+NNLL accuracy
• EWPD in the SMEFT to dimension eight
• Charm Physics Confronts High-$p_T$ Lepton Tails
• Running minimal flavor violation
• LHC multijet events as a probe for anomalous dimension-six gluon interactions
• Top and Beauty synergies in SMEFT-fits at present and future colliders
• Effective field theory approach to top-quark decay at next-to-leading order in QCD
• Lepton Flavor Violation and Dilepton Tails at the LHC
• The impact of flavour data on global fits of the MFV SMEFT
• Interplay of dineutrino modes with semileptonic rare $\mathbf{B}$-decays
• The Flavor of UV Physics
• The Impact of Dimension-8 SMEFT Contributions: A Case Study
• Probing anomalous $t\bar{t}Z$ interactions with rare meson decays
• Interplay of t --> b W Decay and B_q Meson Mixing in Minimal Flavor Violating Models
• Exploring the SMEFT at dimension-8 with Drell-Yan transverse momentum measurements
• Resolving the Flavor Structure in the MFV-SMEFT
• Matching for FCNC effects in the flavour-symmetric SMEFT
• Model-independent analysis of $b\to d$ processes
• The anomalous $Zb\bar{b}$ couplings: From LEP to LHC

Cited by in corpus (12)

• Probing flavor constrained SMEFT operators through $tc$ production at the Muon collider
• Constraining new physics effective interactions via a global fit of electroweak, Drell-Yan, Higgs, top, and flavour observables
• Collider-Flavour Complementarity from the bottom to the top
• On the EFT validity for Drell-Yan tails at the LHC
• Froggatt-Nielsen Meets the SMEFT
• Higgs couplings in SMEFT via Zh production at the HL-LHC
• New opportunities for rare charm from $Z\to c\bar{c}$ decays
• Flavour Anomalies: A comparative analysis using a machine learning algorithm
• Probing Z/W Pole Physics at High-energy Muon Colliders via Vector-boson-fusion Processes
• Tracing the bottom electroweak dipole operators at future lepton colliders
• A $B-$anomaly motivated $Z^{\prime }$ boson at the energy and precision frontiers
• Measurement of high-mass $t\bar{t}{\ell }^{+}{\ell }^{-}$ production and lepton flavour universality-inspired effective field theory interpretations at $\sqrt{s}=13$ TeV with the ATLAS detector