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Results from a phenomenological analysis for diffractive hadroproduction of heavy flavors at high energies are reported. Diffractive production of charm, bottom and top are calculated using Regge factorization, taking into account recent…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. V. T. Machado

We review the evolution of the studies of diffractive processes in the strong interaction over the last 60 years. First, we briefly outline the early developments of the theory based on analyticity and unitarity of the S-matrix, including…

High Energy Physics - Phenomenology · Physics 2017-08-23 Leonid Frankfurt , Mark Strikman

We have recently studied the QCD pomeron loop evolution equations in zero transverse dimensions [Shoshi:2005pf]. Using the techniques developed in [Shoshi:2005pf] together with the AGK cutting rules, we present a calculation of single,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Arif I. Shoshi , Bo-Wen Xiao

The lowest order pomeron loop is calculated for the leading conformal weight with full dependence of the triple pomeron vertex on intermediate conformal weights. The loop is found to be convergent. Its contribution to the pomeron Green…

High Energy Physics - Phenomenology · Physics 2010-04-21 M. A. Braun

Measurements of soft and hard diffractive processes have been performed at the Tevatron p-pbar collider during the past decade. Diffractive events are studied by means of identification of one or more rapidity gaps and/or a leading…

High Energy Physics - Phenomenology · Physics 2017-08-23 Michele Gallinaro

Our presentation centers on the consequences of s-channel unitarity, manifested by soft re-scatterings of the spectator partons in a high energy diffractive process, focusing on the calculations of gap survival probabilities. Our emphasis…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Gotsman , E. Levin , U. Maor , E. Naftali , A. Prygarin

We perform next-to-leading order calculations of the single-diffractive and non-diffractive cross sections for dijet production in proton-antiproton collisions at the Tevatron. By comparing their ratio to the data published by the CDF…

High Energy Physics - Phenomenology · Physics 2009-11-06 M. Klasen , G. Kramer

We confront the latest H1 and ZEUS data on diffractive dijet photoproduction with next-to-leading order QCD predictions in order to determine whether a rapidity gap survival probability of less than one is supported by the data. We find…

High Energy Physics - Phenomenology · Physics 2008-08-28 M. Klasen , G. Kramer

In a recent paper (hep-ph/0608271) we describe a new approach to rapidity gap survival (RGS) in the production of high-mass systems (H = dijet, Higgs, etc.) in exclusive double-gap diffractive pp scattering, pp -> p + H + p. It is based on…

High Energy Physics - Phenomenology · Physics 2017-08-23 C. E. Hyde-Wright , L. Frankfurt , M. Strikman , C. Weiss

In this paper we present a two channel model with the goal of reproducing the soft scattering data available in the ISR-Tevatron energy range, and extend the model results to LHC and Cosmic Rays energies. A characteristic feature of the…

High Energy Physics - Phenomenology · Physics 2007-11-05 E. Gotsman , E. Levin , U. Maor

We present perturbative predictions for the transverse momentum (q_T) distribution of the Higgs boson at the LHC. At small q_T the logarithmically-enhanced terms are resummed to all orders up to next-to-next-to-leading logarithmic accuracy.…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Grazzini

We consider single-diffractive (SD) Higgs production in association with heavy flavour in proton-proton collisions at the LHC. The main focus of our study is a reliable estimate of SD/inclusive ratio, not a precision computation of the…

High Energy Physics - Phenomenology · Physics 2015-11-18 Roman Pasechnik , Boris Kopeliovich , Irina Potashnikova

Large - distance effects in the hadron wave function for the hadron-Pomeron vertex in the QCD -model are discussed. It is shown that they lead to the spin-flip part of the Pomeron coupling which can reach $10 \div 20 %$ with respect to the…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. V. Goloskokov

We perform a NLO QCD analysis of single-diffractive dijet production in proton-antiproton collisions. By comparing the ratio of single- and non-diffractive cross sections to data from the Tevatron, the rapidity-gap survival probability is…

High Energy Physics - Phenomenology · Physics 2011-02-15 M. Klasen

Coherence phenomena, the increase with energy of coherence length and the non-universality of parton structure of the effective Pomeron are explained. New hard phenomena directly calculable in QCD such as diffractive electroproduction of…

High Energy Physics - Phenomenology · Physics 2008-11-26 Halina Abramowicz , Leonid Frankfurt , Mark Strikman

Recent experimental results on inclusive diffractive scattering and on exclusive vector meson production are reviewed. The dynamical picture of hard diffraction emerging in perturbative QCD is highlighted.

High Energy Physics - Phenomenology · Physics 2009-10-31 Halina Abramowicz

In the prospect of diffractive Higgs production at the LHC collider, we give an extensive study of Higgs boson, dijet, diphoton and dilepton production at hadronic colliders via diffraction at both hadron vertices. Our model, based on non…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Boonekamp , R. Peschanski , C. Royon

Fixed-order QCD radiative corrections to the vector-boson and Higgs associated production channels, pp -> VH (V=W, Z), at hadron colliders are well understood. We combine higher order perturbative QCD calculations with soft-gluon…

High Energy Physics - Phenomenology · Physics 2013-05-30 S. Dawson , T. Han , W. K. Lai , A. K. Leibovich , I. Lewis

A model for exclusive diffractive resonance production in proton-proton collisions at LHC energies is presented. This model is based on the convolution of the Donnachie-Landshoff parameterisation of Pomeron flux in the proton with the…

High Energy Physics - Phenomenology · Physics 2016-12-21 Roberto Fiore , Laszlo Jenkovszky , Rainer Schicker

We analyze contributions to the heavy vector meson production with large transverse momentum in proton--proton and diffractive photon--proton scattering driven by an exchange of two Balitsky--Fadin--Kuraev--Lipatov Pomerons in the squared…

High Energy Physics - Phenomenology · Physics 2019-09-04 Piotr Kotko , Leszek Motyka , Mariusz Sadzikowski , Anna M. Stasto