Final state interactions in single- and multi-particle inclusive cross sections for hadronic collisions
arXiv:1209.5798 · doi:10.1103/PhysRevD.86.114038
Abstract
We study the role of low momentum transfer (soft) interactions between high-transverse momentum heavy particles and beam remnants (spectators) in hadronic collisions. Such final-state interactions are power suppressed for single-particle inclusive cross sections whenever that particle is accompanied by a recoiling high-p_T partner whose momentum is not fixed. An example is the single-top inclusive cross section in top pair production. Final-state soft interactions in multi-particle inclusive cross sections, including transverse momentum distributions, however, produce leading power corrections in the absence of hard recoiling radiation. Nonperturbative corrections due to scattering from spectators are generically suppressed by powers of Λ/p'_T, where Λis a hadronic scale, and p'_T is the largest transverse momentum of radiation recoiling against the particles whose momenta are observed.
18 pages, 6 figures
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- Top quark pair production at small transverse momentum in hadronic collisions
- Soft Gluon Resummations in Dijet Azimuthal Angular Correlations at the Collider
- Heavy Quarkonium Production at Low Pt in NRQCD with Soft Gluon Resummation
- Determination of the top quark mass circa 2013: methods, subtleties, perspectives
- Transverse Momentum Resummation for Dijet Correlation in Hadronic Collisions
- A New Paradigm for Precision Top Physics: Weighing the Top with Energy Correlators
- Celestial Blocks and Transverse Spin in the Three-Point Energy Correlator
- Lepton-jet Correlation in Deep Inelastic Scattering
- Extra Spin Asymmetries From the Breakdown of TMD-Factorization in Hadron-Hadron Collisions
- Factorization Violation and Scale Invariance
- Projected transverse momentum resummation in top-antitop pair production at LHC
- Factorization violation in the multiparton collinear limit
- Factorization and its Breaking in Dijet Single Transverse Spin Asymmetries in Collisions
- Recent theoretical progress in top quark pair production at hadron colliders