J. R. Forshaw

One-Jettiness Distribution Contains Super-Super-Leading Logarithms

Andrea Banfi, J. R. Forshaw, Jack Holguin

We show that one-jettiness ( τ 1 ) in color-singlet plus jet production suffers from superleading logarithms starting at order α s 4 ln ( 1 / τ 1 ) 6 relative to the Born level. This is one logarithm more dominant …

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The one-jettiness distribution contains super-super-leading logarithms

Andrea Banfi, J. R. Forshaw, Jack Holguin

We show that one-jettiness (τ_{1}) in color-singlet plus jet production suffers from superleading logarithms starting at order α_{s}^{4}ln(1/τ_{1})^{6} relative to the Born level. This is one logarithm more dominant than any previously identified superleading logarithms. The extra logarithm is not associated with …

Fully differential soft gluon evolution at the amplitude level

J. R. Forshaw, Simon Plätzer, F. Gonzalez

A bstract We study differential intra-jet radiation patterns in jet production at full colour. We present a systematic study of several QCD 2 → 2 processes and also multi-jet production from a colourless initial state. We examine how subleading colour corrections are …

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A holographic analysis of the pion

J. R. Forshaw, Ruben Sandapen

Being simultaneously a bound state and a pseudo-Goldstone boson of chiral symmetry breaking, the pion is an ideal probe of the intertwined phenomena of confinement and chiral symmetry breaking in QCD. Here, we compute the low energy pion observables with light-front holography, …

Toward a manifestly causal approach to particle scattering

J. R. Forshaw, Ross Jenkinson, Peter Millington

We introduce a new, probability-level approach to calculations in scalar field particle scattering. The approach involves the implicit summation over final states, which makes causality manifest since retarded propagators emerge naturally. Novel diagrams represent algebraic terms at the probability level, akin to …

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Fully Differential Soft Gluon Evolution at the Amplitude Level

J. R. Forshaw, Simon Plätzer

We study differential intra-jet radiation patterns in jet production at full colour. We present a systematic study of several QCD $2\to 2$ processes and also multi-jet production from a colourless initial state. We examine how subleading colour corrections are distributed differentially in …

Towards a Manifestly Causal Approach to Particle Scattering

Robert Dickinson, J. R. Forshaw, Ross Jenkinson, Peter Millington

We introduce a new, probability-level approach to calculations in scalar field particle scattering. The approach involves the implicit summation over final states, which makes causality manifest since retarded propagators emerge naturally. Novel diagrams represent algebraic terms at the probability level, akin to …

Exact colour evolution for jet observables

J. R. Forshaw, Simon Plätzer

We perform a systematic and comprehensive analysis of sub-leading colour corrections in perturbative QCD processes involving multiple soft gluon emissions. This necessitates going beyond the standard parton shower paradigm in order to incorporate interference effects and is accomplished using the CVolver program, …

Holographic analysis of the pion

J. R. Forshaw, Ruben Sandapen

Inspired by light-front holography, we compute the pion mass, charge radius, decay constant, electromagnetic form factor and electromagnetic transition form factor. To do so, we model the longitudinal quark dynamics using potentials due to ’t Hooft and to Li and Vary. We …

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A holographic analysis of the pion

J. R. Forshaw, Ruben Sandapen

Inspired by light-front holography, we compute the pion mass, charge radius, decay constant, electromagnetic form factor and electromagnetic transition form factor. To do so, we model the longitudinal quark dynamics using potentials due to 't Hooft and to Li & Vary. We …

A new study of the Unruh effect

Robert Dickinson, J. R. Forshaw, Ross Jenkinson, Peter Millington

Abstract We revisit the Unruh effect within a general framework based on direct, probability-level calculations. We rederive the transition rate of a uniformly accelerating Unruh–DeWitt monopole detector coupled to a massive scalar field, from both the perspective of an inertial (Minkowski) observer …

gb (code pays fourni par la source)

A new study of the Unruh effect

Robert Dickinson, J. R. Forshaw, Ross Jenkinson, Peter Millington

We revisit the Unruh effect within a general framework based on direct, probability-level calculations. We rederive the transition rate of a uniformly accelerating Unruh-DeWitt monopole detector coupled to a massive scalar field, from both the perspective of an inertial (Minkowski) observer and …