39 Result(s)
within
Ian Moult
Physics
Quantum Field Theories, String Theory
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Article
Open AccessThe 1 → 3 massive splitting functions from QCD factorization and SCET
Splitting functions are universal functions describing the collinear dynamics of gauge theories, and as such are crucial ingredients for a wide variety of calculations in perturbative QCD. We present analytic ...
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Open AccessA collinear perspective on the Regge limit
The high energy (Regge) limit provides a playground for understanding all loop structures of scattering amplitudes, and plays an important role in the description of many phenomenologically relevant cross-sect...
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Open AccessA formalism for extracting track functions from jet measurements
The continued success of the jet substructure program will require widespread use of tracking information to enable increasingly precise measurements of a broader class of observables. The recent reformulation...
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Open AccessEnergy correlators on tracks: resummation and non-perturbative effects
Energy correlators measured inside high-energy jets at hadron colliders have recently been demonstrated to provide a new window into both perturbative and non-perturbative Quantum Chromodynamics. A number of t...
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Open AccessA coherent view of the quark-gluon plasma from energy correlators
The ability to measure detailed aspects of the substructure of high-energy jets traversing the quark-gluon plasma (QGP) has provided a new window into its internal dynamics. However, drawing robust conclusions...
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Article
Open AccessMulti-collinear splitting kernels for track function evolution
Jets and their substructure play a central role in many analyses at the Large Hadron Collider (LHC). To improve the precision of measurements, as well as to enable measurement of jet substructure at increasing...
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Open AccessAnomalous dimensions from soft Regge constants
Using an effective field theory (EFT) formalism for forward scattering, we reconsider the factorization of 2 → 2 scattering amplitudes in the Regge limit. Expanding the amplitude in gauge invariant operators l...
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Open AccessSystematic quark/gluon identification with ratios of likelihoods
Discriminating between quark- and gluon-initiated jets has long been a central focus of jet substructure, leading to the introduction of numerous observables and calculations to high perturbative accuracy. At ...
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Open AccessCelestial blocks and transverse spin in the three-point energy correlator
Quantitative theoretical techniques for understanding the substructure of jets at the LHC enable new insights into the dynamics of QCD, and novel approaches to search for new physics. Recently, there has been ...
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Article
Open AccessThe four loop QCD rapidity anomalous dimension
The rapidity anomalous dimension controls the scaling of transverse momentum dependent observables in the Sudakov region. In a conformal theory it is equivalent to the soft anomalous dimension, but in QCD this...
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Open AccessSpinning gluons from the QCD light-ray OPE
We study the transverse spin structure of the squeezed limit of the three-point energy correlator, ...
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Open AccessNon-Gaussianities in collider energy flux
The microscopic dynamics of particle collisions is imprinted into the statistical properties of asymptotic energy flux, much like the dynamics of inflation is imprinted into the cosmic microwave background. Th...
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Open AccessRenormalization group flows for track function moments
Track functions describe the collective effect of the fragmentation of quarks and gluons into charged hadrons, making them a key ingredient for jet substructure measurements at hadron colliders, where track-ba...
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Open AccessThree point energy correlators in the collinear limit: symmetries, dualities and analytic results
Energy Correlators measure the energy deposited in multiple detectors as a function of the angles between the detectors. In this paper, we analytically compute the three particle correlator in the collinear li...
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Open AccessSubleading power resummation of rapidity logarithms: the energy-energy correlator in \( \mathcal{N} \) = 4 SYM
We derive and solve renormalization group equations that allow for the resummation of subleading power rapidity logarithms. Our equations involve operator mixing into a new class of operators, which we term th...
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Article
Open AccessThe soft quark Sudakov
There has been recent interest in understanding the all loop structure of the subleading power soft and collinear limits, with the goal of achieving a systematic resummation of subleading power infrared logari...
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Open AccessSubleading power factorization with radiative functions
The study of amplitudes and cross sections in the soft and collinear limits allows for an understanding of their all orders behavior, and the identification of universal structures. At leading power soft emiss...
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Open AccessHelicity methods for high multiplicity subleading soft and collinear limits
The factorization of multi-leg gauge theory amplitudes in the soft and collinear limits provides strong constraints on the structure of amplitudes, and enables efficient calculations of multi-jet observables a...
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Open AccessSubleading power rapidity divergences and power corrections for qT
A number of important observables exhibit logarithms in their perturbative description that are induced by emissions at widely separated rapidities. These include transverse-momentum (qT) logarithms, logarithms i...
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Open AccessProspects for a measurement of the W boson mass in the all-jets final state at hadron colliders
Precise measurements of the mass of the W boson are important to test the overall consistency of the Standard Model of particle physics. The current best measurements of the W boson mass come from single producti...
