« Hastī va ḥayāt-e šeʽr-e emrūz-e Īrān ». Donyā-ye soḫan, n° 92, (bahman 1379/2001), pp. 14-19. [Vie poétique dans l’Iran contemporain]

19. Fragmentation functions in e + e − , ep and pp collisions 1 19. FRAGMENTATION FUNCTIONS IN e + e − , ep AND pp COLLISIONS

The term ‘fragmentation functions’ is widely used for two related if conceptually different sets of functions describing final-state single particle energy distributions in hard scattering processes (see Refs. [1,2] for introductory reviews, and Refs. [3,4] for summaries of recent experimental and theoretical research in this field). The first are cross-section observables such as the functions...

Correlations Measured in 3 He ( e , e ′ pp ) n

Tensor correlations measured in 3He(e,e' pp)n.

We have measured the 3He(e,e' pp)n reaction at an incident energy of 4.7 GeV over a wide kinematic range. We identified spectator correlated pp and pn nucleon pairs by using kinematic cuts and measured their relative and total momentum distributions. This is the first measurement of the ratio of pp to pn pairs as a function of pair total momentum p(tot). For pair relative momenta between 0.3 an...

92-101 C E 860-E C E 640.indd

C E 860 Advanced Fluid Mechanics 3(3,0) Laminar and turbulent flows; boundary layer and free shear flows (jets, wakes, etc.); descriptions of velocity, shear stress and pressure measurements, and aerodynamic drag. C E 861 Mechanics of Sediment Transport 3(3,0) Characterization of sediments; physical principles governing fluvial, estuarial, and coastal transport of cohesionless and cohesive sedi...

Probing nucleon-nucleon correlations with (e,e ′ p) and (e,e ′ pp) reactions