Azimuthal correlation in DIS

Banfi, Andrea; Marchesini, G.; Smye, Graham E.

doi:10.1088/1126-6708/2002/04/024

Cited by 21 publications

(36 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Given that this result is simply a straightforward generalisation of that in the well-known Drell-Yan transverse momentum resummation [1,48,53], and that it has been extensively discussed also for event shapes [23,26,27,28], we refer the reader to the literature for further details.…”

Section: Generalisation To Other Born Configurationsmentioning

confidence: 78%

See 1 more Smart Citation

Principles of general final-state resummation and automated implementation

Banfi

Salam

Zanderighi

2005

J. High Energy Phys.

Self Cite

273

620

View full text Add to dashboard Cite

Next-to-leading logarithmic final-state resummed predictions have traditionally been calculated, manually, separately for each observable. In this article we derive NLL resummed results for generic observables. We highlight and discuss the conditions that the observable should satisfy for the approach to be valid, in particular continuous globalness and recursive infrared and collinear safety. The resulting resummation formula is expressed in terms of certain well-defined characteristics of the observable. We have written a computer program, caesar, which, given a subroutine for an arbitrary observable, determines those characteristics, enabling full automation of a large class of final-state resummations, in a range of processes.

show abstract

Section: Generalisation To Other Born Configurationsmentioning

confidence: 78%

“…NLL final-state resummations for Born events consisting of a hard quark-(anti)quark pair and a hard gluon have been discussed in [25,26,27,28]. The treatment of a general observable in the 3-jet case mirrors quite closely that given above for 2 jets.…”

Section: Generalisation To Other Born Configurationsmentioning

confidence: 89%

Principles of general final-state resummation and automated implementation

Banfi

Salam

Zanderighi

2005

J. High Energy Phys.

Self Cite

273

620

View full text Add to dashboard Cite

show abstract

“…For DIS to 1 + 1 jets the current-hemisphere observables are resummed in refs. [33,67,68] and the jet rates in [35] (though only to NLL R accuracy) while the 2 + 1 jet observables, K out and azimuthal correlations, have been resummed in [32,34]. Methods for automated resummation of arbitrary observables are currently in development for a range of processes [38], and techniques have also being developed for dealing with arbitrary processes [69].…”

Section: Resummationmentioning

confidence: 99%

Event shapes in e⁺eannihilation and deep inelastic scattering

Dasgupta

Salam

2004

J. Phys. G: Nucl. Part. Phys.

160

239

View full text Add to dashboard Cite

show abstract

“…Taking q ℓ as the hardest (soft) gluon and differentiating (25) with respect to E, thus setting ω ℓ = E, one obtains [44] …”

Section: Virtual Correction Generating Functional and Evolutionmentioning

confidence: 99%

“…To obtain Σ(τ ) from G ab [E, u] one takes u(q) = 0 away from jets and u(q) = 1 inside the jet region. From (27) one derives the evolution equation [44] …”

Section: Observables In the Soft Limitmentioning

confidence: 99%

From QCD Lagrangian to Monte Carlo Simulation

Marchesini

Lecture Notes in Physics

View full text Add to dashboard Cite

I discuss old and recent aspects of QCD jet-emission and describe how hard QCD results are used to construct Monte Carlo programs for generating hadron emission in hard collisions. I focus on the program HERWIG at LHC. The statusLHC is a discovery machine, it is expected to tell us how to complete the unified theory of elementary interactions. New (heavy) particles are searched to indicate/confirm new symmetries. Events with heavy particles are expected to be accompanied by an intense emission of hadrons at short distances, and this is the domain of perturbative QCD. Therefore, to identify and understand non-standard events a quantitative knowledge of the characteristics of the hard radiation is strongly needed. In 1973 QCD was at the frontier of particle physics (discovery of asymptotic freedom [1] and beginning of quantitative QCD studies), now in 2007 QCD is at the center of particle studies. The Monte Carlo programs for jet emissions [2][3][4] are important instruments for analyzing standard and non-standard short distance events. They are the Summa of most QCD theoretical results and many present studies aim to improve their quantitative predictions. Thanks to the QCD factorization structure [5], Monte Carlo programs can be interfaced with hard cross sections involving also non-QCD processes (electroweak, supersymmetric, extra dimension, black holes, ...). In this way, Monte Carlo generators can describe both QCD and non-QCD events at short distances.In this paper I describe the main QCD results which enter the construction of a Monte Carlo generator. They are so many that most of the key points will be recalled in a schematic way, but I hope that this short description could provide an idea of the reliability range of the Monte Carlo generators. For a more detailed description see [6]. Here, aiming to be simple and synthetic, I follow a personal point of view and the focus will be on the Monte Carlo event generator HERWIG [2]. Its general structure is similar to other important Monte Carlo generators [3,4]. In section 2 I present the scheme of the operations performed by Monte Carlo codes for LHC. The fact that the generation of events can be subdivided into successive stages is physically based on QCD factorization properties. The theoretical basis are discusses/recalled in section 3. In section 4 I discuss 1

show abstract

Azimuthal correlation in DIS

Cited by 21 publications

References 55 publications

Principles of general final-state resummation and automated implementation

Principles of general final-state resummation and automated implementation

Event shapes in e⁺eannihilation and deep inelastic scattering

From QCD Lagrangian to Monte Carlo Simulation

Contact Info

Product

Resources

About

Azimuthal correlation in DIS

Cited by 21 publications

References 55 publications

Principles of general final-state resummation and automated implementation

Principles of general final-state resummation and automated implementation

Event shapes in e+e annihilation and deep inelastic scattering

From QCD Lagrangian to Monte Carlo Simulation

Contact Info

Product

Resources

About

Event shapes in e⁺eannihilation and deep inelastic scattering