منابع مشابه
Double Diffraction Dissociation at High t
Diffractive scattering in the presence of a large momentum transfer is an ideal place to study the short distance rapidity gap producing mechanism. Previous studies (experimental and theoretical) in this area have focussed on gaps between jets and on high-t vector meson production. We propose the measurement of double dissociation at high-t. We examine the numerous advantages to studying this m...
متن کاملDouble diffraction dissociation at the Fermilab Tevatron collider.
We present results from a measurement of double diffraction dissociation in pp collisions at the Fermilab Tevatron collider. The production cross section for events with a central pseudorapidity gap of width Deltaeta(0)>3 (overlapping eta = 0) is found to be 4.43+/-0.02(stat)+/-1.18(syst) mb [ 3.42+/-0.01(stat)+/-1.09(syst) mb] at square root of (s) = 1800[630] GeV. Our results are compared wit...
متن کاملPhenomenology of single and double diffraction dissociation
Measurements at the lhc have shown that there are sizable disagreements among Monte Carlo (mc) implementations of “soft” processes based on cross sections proposed by various physics models, and that it is not possible to reliably predict all such processes, or even all aspects of a given process, using a single model [1, 2, 3]. In the cdf studies of diffraction at the Tevatron, all processes a...
متن کاملHigh-t Diffraction *
High-t diffraction is the scattering of two particles A and B into a final state which is made up wholly of two systems X and Y which are far apart in rapidity and between which there is a large relative transverse momentum, Pt. The square of the exchanged four-momentum is t ≈ −P 2 t . High t means that −t≫ Λ 2 QCD. By studying this class of events we can hope to gain valuable insight into the ...
متن کاملOn the determination of double diffraction dissociation cross section at HERA
The excitation of the proton into undetected multiparticle states (double diffraction dissociation) is an important background to single diffractive deep-inelastic processes ep → epρ, epJ/Ψ, epX at HERA. We present estimates of the admixture of the double diffraction dissociation events in all diffractive events. We find that in the J/Ψ photoproduction, electroproduction of the ρ at large Q and...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1998
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(98)00749-7