Boosted Higgses from chromomagnetic $b$'s: $b\bar{b}h$ at high luminosity

Abstract

This paper examines detection prospects and constraints on the chromomagnetic dipole operator for the bottom quark. This operator has a flavor, chirality and Lorentz structure that is distinct from other dimension six operators considered in Higgs coupling studies. Its non-standard Lorentz structure bolsters boosted $b\bar{b}h$ events, providing a rate independent signal of new physics. To date, we find this operator is unconstrained by $pp\to h+\mathrm{jets}$ and $pp\to \bar{b}b$ searches: for order-one couplings the permitted cutoff $\Lambda$ for this operator can be as low as $\Lambda \sim 1\mathrm{TeV}$. We show how to improve this bound with collider cuts that allow a $b$-tagged Higgs plus dijet search in the Higgs to diphoton decay channel to exclude cutoffs as high as $\sim 6\mathrm{TeV}$ at $2\sigma$ with 3 ${\text{ab}}^{-1}$ of luminosity at the 14 TeV LHC. Cuts on the $p_T$ of the Higgs are key to this search, because the chromomagnetic dipole yields a non-standard fraction of boosted Higgses.

21 pages, 7 figures, 4 tables

References in corpus (26)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Constraints on Dark Matter from Colliders
• Observation of the diphoton decay of the Higgs boson and measurement of its properties
• The Tevatron at the Frontier of Dark Matter Direct Detection
• Measurement of Higgs boson production in the diphoton decay channel in $pp$ collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
• Maverick dark matter at colliders
• Higgs pair production at the LHC with NLO and parton-shower effects
• Complete Higgs Sector Constraints on Dimension-6 Operators
• Precision Measurements of Higgs Couplings: Implications for New Physics Scales
• Higgs boson pair production in the D=6 extension of the SM
• Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
• Measurement of the $t\bar{t}$ production cross-section using $e\mu$ events with $b$-tagged jets in $pp$ collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS detector
• Higgs production in association with bottom quarks
• Standard Model Higgs boson pair production in the $(b\bar{b})(b\bar{b})$ final state
• NLO QCD Corrections to Higgs Pair Production including Dimension-6 Operators
• Effective Theories and Measurements at Colliders
• Electroweak Symmetry Breaking and the Higgs Boson: Confronting Theories at Colliders
• Effective Field Theory for Higgs Plus Jet Production
• Boosted Higgs Shapes
• A Double Take on New Physics in Double Higgs Production
• Exploring the Anomalous Higgs-top Couplings
• Measurement of top quark-antiquark pair production in association with a W or Z boson in pp collisions at sqrt(s) = 8 TeV
• Boosting Higgs decays into gamma and a Z in the NMSSM
• On the ratio of ttbb and ttjj cross sections at the CERN Large Hadron Collider
• Ditau-Jet Tagging and Boosted Higgses from a Multi-TeV Resonance
• Cornering a Hyper Higgs: Angular Kinematics for Boosted Higgs Bosons with Top Pairs

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• Top and bottom tensor couplings from a color octet scalar
• Anomalous anomalies from virtual black holes
• Matching in $pp\to t\bar{t}W/Z/h+$ jet SMEFT studies
• Beautiful and charming chromodipole moments
• Higgs production constraints on anomalous fermion couplings