Diffraction dissociation in collisions at √s=1.8 TeV

Amos, N.; Ávila, C.; Baker, W.; Bertani, M.; Block, M. M.; Dimitroyannis, D.; Eartly, D. P.; Ellsworth, R. W.; Giacomelli, G.; Gómez, B.; Goodman, J. A.; Guss, C.; Hoeneisen, B.; Lennox, A.J.; Mondardini, M.R.; Negret, J. P.; Orear, J.; Pruss, S.; Rubinstein, R.; Sadr, S.; Sanabria, J. C.; Shukla, S.; Spagnoli, M.; Veronesi, Ilaria; Zucchelli, S.

doi:10.1016/0370-2693(93)90707-o

Cited by 52 publications

(34 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Diffraction is due to the Pomeron exchange but the exact nature of the Pomeron in QCD is not yet elucidated. The first test of a model of diffractive dissociation (SD) is the ability to properly describe the mass (M X ) distribution of diffractive systems, which has been measured in many experiments [51] and parametrized as (M In Ref. [15] we studied diffractive mass distributions using the Interacting Gluon Model focusing on their energy dependence and their connection with inelasticity distributions.…”

Section: Leading Charm and Beautymentioning

confidence: 99%

See 1 more Smart Citation

The Interacting Gluon Model: a review

Durães¹,

Navarra

Wilk

2005

Braz. J. Phys.

View full text Add to dashboard Cite

The Interacting Gluon Model (IGM) is a tool designed to study energy flow, especially stopping and leading particle spectra, in high energy hadronic collisions. In this model, valence quarks fly through and the gluon clouds of the hadrons interact strongly both in the soft and in the semihard regime. Developing this picture we arrive at a simple description of energy loss, given in terms of few parameters, which accounts for a wide variety of experimental data. This text is a survey of our main results and predictions.

show abstract

Section: Leading Charm and Beautymentioning

confidence: 99%

“…Fig. 9 shows the diffractive mass spectrum for √ s = 1800 GeV compared to experimental data from the E710 Collaboration [53]. In these curves we have used our intermediate Pomeron profile: G IP (y) given by (8) with m = 5 and p IP = 0.05.…”

Section: Leading Charm and Beautymentioning

confidence: 99%

The Interacting Gluon Model: a review

Durães¹,

Navarra

Wilk

2005

Braz. J. Phys.

View full text Add to dashboard Cite

show abstract

“…In Section 2 we have decomposed Q 2 σ tot (γ * N, x, Q 2 ) into the non-LLA component (18), which we can neglect, and the LLA component (17), in which all the explicit dependence on Q 2 is concentrated in the integration limit. This is the crucial point, since taking the derivative (121) and making use of Eq.…”

Section: Unitarization and Linear Gldap Versus Nonlinear Glr Evolutiomentioning

confidence: 99%

“…These multiple pomeron exchanges cast shadow on the reinterpretation of the diffraction dissociation in terms of the photon-pomeron interaction. Experimentally α IP (0) > 1 [16,17], the total cross sections are rising and the mass spectrum of the diffraction dissociation of protons exhibits slight deviations from the 1/M 2 law [18]. Furthermore, the cross section of the diffraction dissociation of virtual photons was shown to be infrared sensitive [7][8][9]19].…”

mentioning

confidence: 99%

The triple-pomeron regime and structure function of the pomeron in diffractive deep inelastic scattering at very smallx

Николаев

Захаров

1994

Z. Phys. C - Particles and Fields

188

183

View full text Add to dashboard Cite

We discuss the diffractive deep inelastic scattering at very small x and derive the properties of the diffractive dissociation of virtual photons in the triple-pomeron regime. We demonstrate that the photon-pomeron interactions can be described by the partonic structure function, which satisfies the QCD evolution equations, and identify the valence and sea (anti)quark and the valence gluon structure functions of the pomeron. The gluon structure function of the pomeron 1 can be described by the constituent gluon wave function of the pomeron. We derive the leading unitarization correction to the rising structure functions at small x and conclude that the unitarized structure function satisfies the linear evolution equations. This resul holds even when the multipomeron exchanges are included.

show abstract

“…At pp collider experiments, the reaction pp → Xp ′ has been studied in detail [1,2], whilst at HERA the process γp → Xp ′ has also been closely investigated for both real and virtual photons [3][4][5][6][7][8]. These processes are often interpreted using Regge phenomenology in terms of the exchange of colourless objects between the colliding particles.…”

Section: Introductionmentioning

confidence: 99%

Photoproduction With a Leading Proton at Hera

HILLER¹

2002

Deep Inelastic Scattering

View full text Add to dashboard Cite

The total cross section for the photoproduction process with a leading proton in the final state has been measured at γp centre-of-mass energies W of 91, 181 and 231 GeV. The measured cross sections apply to the kinematic range with the transverse momentum of the scattered proton restricted to p T ≤ 0.2 GeV and 0.68 ≤ z ≤ 0.88, where z = E ′ p /E p is the scattered proton energy normalised to the beam energy. The cross section dσ γp→Xp ′ (W, z)/dz is observed to be independent of W and z within the measurement errors and amounts to (8.05±0.06 (stat)±0.89 (syst)) µb on average. The data are well described by a Triple Regge model in which the process is mediated by a mixture of exchanges with an effective Regge trajectory of intercept α i (0) = 0.33 ± 0.04 (stat) ± 0.04 (syst). The total cross section for the interaction of the photon with this mixture (γα i → X) can be described by an effective trajectory of intercept α k (0) = 0.99 ± 0.01 (stat) ± 0.05 (syst). Predictions based on previous triple Regge analyses of pp → pX data assuming vertex factorisation are broadly consistent with the γp data. The measured cross sections are compared with deep inelastic scattering leading proton data in the same region of z and p T for photon virtuality Q 2 > 2.5 GeV 2 . The ratio of the cross section for leading proton production to the total cross section is found to rise with Q 2 .To be submitted to Nucl. Phys. B

show abstract

Diffraction dissociation in collisions at √s=1.8 TeV

Cited by 52 publications

References 19 publications

The Interacting Gluon Model: a review

The Interacting Gluon Model: a review

The triple-pomeron regime and structure function of the pomeron in diffractive deep inelastic scattering at very smallx

Photoproduction With a Leading Proton at Hera

Contact Info

Product

Resources

About