Results 81 to 90 of about 8,485 (223)
The gluon form factor to higher orders: Gluon-gluon annihilation at small Qt
Abstract We study the region of small transverse momenta in the dynamics of the gluon-gluon annihilation channel. This is done by evaluating the gluon form factor at the single non-leading infrared and collinear logarithmic accuracy to all orders in α s . An explicit expression for the gluon form factor is obtained.
S. Catani, E. D'Emilio, L. Trentadue
openaire +1 more source
Gluons in glueballs: spin or helicity?
peer reviewedIn the past decade, lattice QCD has been able to compute the low-lying glueball spectrum with accuracy. Like other effective approaches of QCD, potential models still have difficulties to cope with gluonic hadrons.
Mathieu, Vincent +2 more
core +1 more source
Light-cone singularities and transverse-momentum-dependent factorization at twist-3
We study transverse-momentum-dependent factorization at twist-3 for Drell–Yan processes. The factorization can be derived straightforwardly at leading order of αs.
A.P. Chen, J.P. Ma
doaj +1 more source
Coulomb gluons will generally destroy coherence
Coherence violation is an interesting and counter-intuitive phenomenon in QCD. We discuss the circumstances under which violation occurs in observables sensitive to soft radiation and arrive at the conclusion that almost all such observables at hadron ...
Jeffrey R. Forshaw, Jack Holguin
doaj +1 more source
Holomorphic field theories and higher algebra
Abstract Aimed at complex geometers and representation theorists, this survey explores higher dimensional analogs of the rich interplay between Riemann surfaces, Virasoro and Kac‐Moody Lie algebras, and conformal blocks. We introduce a panoply of examples from physics — field theories that are holomorphic in nature, such as holomorphic Chern‐Simons ...
Owen Gwilliam, Brian R. Williams
wiley +1 more source
ABSTRACT The physics of heavy‐ion collisions is one of the most exciting and challenging directions of science for the last four decades. On the theoretical side one deals with a non‐abelian field theory, while on the experimental side today's largest accelerators are needed to enable these studies.
Marcus Bleicher, Elena Bratkovskaya
wiley +1 more source
Quantum Thermalization Dynamics of Fermi Gases Quenched to the BEC‐BCS Crossover
This study, reporting the first experimental realization of interaction quench far faster than the Fermi timescale in fermionic many‐body systems, explores real‐time quantum thermalization dynamics in the BEC‐BCS crossover. It observes prethermal states with distinct lifetimes after quantum quench, uncovers universal prethermal scaling, and observes ...
Licheng Yi +4 more
wiley +1 more source
Gluons in the hadronic S Matrix
International audienceWe derive a theoretical explanation of the similarities which have been experimentally observed between final state distributions in soft processes (K-p interactions and pp collisions at ISR) and hard processes (e+e annihilations ...
Peschanski, R. +3 more
core +1 more source
Accessing the distribution of linearly polarized gluons in unpolarized hadrons [PDF]
Gluons inside unpolarized hadrons can be linearly polarized provided they have a nonzero transverse momentum. The simplest and theoretically safest way to probe this distribution of linearly polarized gluons is through cos2ø asymmetries in heavy quark ...
Pisano C. +3 more
core +4 more sources
Conformal invariance of the transition vertex $2 \to 4$ gluons
We show that the transition vertex: two reggeized gluons → four reggeized gluons in invariant under Möbius transformations. This provides an important step in defining a conformally invariant effective field theory for QCD in the Regge ...
Bartels, Jochen +2 more
core +1 more source

