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Summing Sudakov logarithms in B -> X_s + gamma in effective field theory

18 Pith papers cite this work. Polarity classification is still indexing.

18 Pith papers citing it
abstract

We construct an effective field theory valid for processes in which highly energetic light-like particles interact with collinear and soft degrees of freedom, using the decay B -> X_s + gamma near the endpoint of the photon spectrum, x = 2 E_gamma / m_b -> 1, as an example. Below the scale mu=m_b both soft and collinear degrees of freedom are included in the effective theory, while below the scale mu=m_b sqrt{x-y}, where 1-y is the lightcone momentum fraction of the b quark in the B meson, we match onto a theory of bilocal operators. We show that at one loop large logarithms cancel in the matching conditions, and that we recover the well known renormalization group equations that sum leading Sudakov logarithms.

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representative citing papers

Sivers Tomography from Charge and Angle Only

hep-ph · 2026-05-14 · conditional · novelty 8.0

The OPCC observable is IRC finite and factorizes into the Sivers distribution plus a perturbatively calculable charge-weighted jet function, eliminating dependence on non-perturbative fragmentation functions via charge conservation.

Putting Jet Substructure on Track(s)

hep-ph · 2026-06-30 · unverdicted · novelty 7.0

First complete NLL calculations of projected energy correlators (up to 4-point) on tracks via factorization theorems and RG evolution, extending prior full-jet results.

Centauric 1-Jettiness in DIS and Universal Power Corrections

hep-ph · 2026-06-18 · unverdicted · novelty 7.0

Introduces Centauric 1-jettiness in DIS, derives N3LL resummation matched to NLO, and establishes universal non-perturbative power corrections scaling as 1/R via reduction to rescaled hemisphere soft function.

Jet Charge with Global Event Shapes: Probing Quark Flavor Dynamics

hep-ph · 2025-12-04 · unverdicted · novelty 7.0

A factorization theorem is derived for the joint measurement of 1-jettiness and jet charge in DIS, introducing a new universal charged jet function that enhances quark flavor separation in initial-state PDFs and probes final-state hadronization.

Accessing nucleon transversity with one-point energy correlators

hep-ph · 2025-09-19 · unverdicted · novelty 7.0

The paper proposes that one-point energy correlators in transversely polarized proton-proton collisions access the nucleon's transversity distribution through a single-spin asymmetry with sin(φ_s - φ_n) angular dependence over a wider kinematic range than traditional transverse momentum measurements

$N$-Jettiness Soft Functions Made Simple

hep-ph · 2026-04-14 · unverdicted · novelty 7.0

A decomposition splits the most singular dipole term of the N-jettiness soft function into an inclusive soft function and a remainder that is absent at NLO, finite at NNLO, and subtractable at N3LO, enabling NNLO results for up to five jets.

The one-point charge correlator in deep inelastic scattering

hep-ph · 2026-06-25 · unverdicted · novelty 6.0

Defines an IRC-safe one-point charge correlator in DIS, relates it to a new nucleon charge correlator in the forward limit and to TMDs in the back-to-back limit, with SCET derivations verified in QCD to O(alpha_s^2) and resummations to NLL/N3LL.

The Classical Gravitational Impulse at High Energies

hep-th · 2026-05-18 · unverdicted · novelty 6.0

The gravitational impulse for ultrarelativistic massive scalars is resummed to all orders in G_N at fixed G_N s/mb, recovering post-Minkowski results and predicting the leading high-energy behavior to eleventh post-Minkowski order.

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