Jet calculus: A simple algorithm for resolving QCD jets

Jet coherence in QCD media: the antenna radiation spectrum

“…Coherence phenomena in jet physics have been extensively studied in the framework of perturbative QCD since the early 80's (see, e.g., [30][31][32][33] and references therein). It has been shown that they substantially affect experimental observables.…”

Perturbative and nonperturbative correlations in double parton distributions

“…Now we consider the initial condition effects in the asymptotic behavior (t → ∞) of the dPDFs. The equations (22), (23) and (24) show that the initial conditions are related to the solutions with different dependence on evolution variable t. In order to better understand the character of this dependence, at first we use a toy model with one type of partons (for instance, QCD theory with gluons only, or six-dimensional φ 3 theory [51,52]). In this case the dPDFs become simpler and look like…”

Infrared-sensitive Physics in QCD and in Electroweak Theory

“…This fact triggered, in the late seventies, a number of seminal papers dealing with factorization of the collinear behaviour [5], form factor resummation [6], preconfinement [7], jet evolution [8] and multiplicities [9]. It also appeared that one could describe in full the final state [10] at the level of partons with offshellness Q 0 much smaller than Q but still large with respect to Λ, the QCD scale, thus providing a ground for event generators [11].…”