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Related papers: Shadowing Corrections and Diffractive Production i…

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We complete the calculation of the wino-nucleon scattering cross section up to the next-to-leading order in $\alpha_s$. We assume that the other sparticles are decoupled and wino interacts with the Standard Model particles via the weak…

High Energy Physics - Phenomenology · Physics 2015-04-06 Junji Hisano , Koji Ishiwata , Natsumi Nagata

The approach to problem of nuclear shadowing based on Gribov Reggeon calculus is presented. Here the total cross section of $h A$ interaction is found in a parameter-free description, employing the new data on the gluon density of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Konrad Tywoniuk , Ionut Arsene , Larissa Bravina , Alexey Kaidalov , Eugene Zabrodin

The description of the dynamics at high density parton regime is one of the main open questions of the strong interactions theory. In this paper we address the shadowing corrections (SC) in the scaling violations of the $F_2$ structure…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. B. Gay Ducati , V. P. Goncalves

The transverse momentum distribution of prompt photons coming from the very early phase of ultrarelativistic heavy ion collisions for the RHIC and LHC energies is calculated by means of perturbative QCD. We calculate the single photon cross…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. Hammon , A. Dumitru , H. Stoecker , W. Greiner

A neutrino produced in a particle decay maintains an unusual wave nature that reveals a diffraction phenomenon in a large spatial region. Diffraction gives a new component to a neutrino flux in this region and modifies determinations of…

High Energy Physics - Phenomenology · Physics 2012-01-17 Kenzo Ishikawa , Yutaka Tobita

Differential cross sections for electromagnetic dissociation in nucleus-nucleus collisions are calculated. The kinetic energy distribution is parameterized with a Boltzmann distribution and the angular distribution is assumed isotropic in…

Nuclear Theory · Physics 2008-11-26 John W. Norbury , Anne Adamczyk

The calculation of the energy-, density-, and isospin-dependent $\Delta$ production cross sections in nucleon-nucleon (NN) scattering $\sigma^*_{NN\rightarrow N\Delta}$ has been performed within the framework of the relativistic BUU…

Nuclear Theory · Physics 2017-10-11 Qingfeng Li , Zhuxia Li

We use perturbative QCD, beyond the leading $\ln Q^2$ approximation, to show how measurements of diffractive $J/\psi$ production at HERA can provide a sensitive probe of the gluon density of the proton at small values of Bjorken $x$. We…

High Energy Physics - Phenomenology · Physics 2008-02-03 M. G. Ryskin , R. G. Roberts , A. D. Martin , E. M. Levin

We use diffractive parton distributions obtained from fits to the diffractive structure function measured at HERA to predict cross sections for single diffractive Higgs production at the LHC. The dominant background processes are also…

High Energy Physics - Phenomenology · Physics 2009-10-30 M. Heyssler , Z. Kunszt , W. J. Stirling

A model for shadowing in nuclear structure functions at small $x$ and small or moderate $Q^2$ is presented using the relation with diffraction that arises from Gribov's reggeon calculus. A reasonable description of the experimental data is…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. L. Albacete , N. Armesto , A. Capella , A. B. Kaidalov , C. A. Salgado

We develop the method for the calculation of the total reaction cross sections induced by the halo nuclei and stable nuclei. This approach is based on the Glauber theory, which is valid for nuclear reactions at high energy. It is extended…

Nuclear Theory · Physics 2018-01-17 Wen-Jun Guo , Huan-Qing Jiang , Jian-Ye Liu , Wei Zuo , Zhong-Zhou Ren , Xi-Guo Lee

I review hard photon initiated processes on nuclei. The space-time development of the DIS reaction as viewed in the target rest frame qualitatively describes the nuclear shadowing of quark and gluon distributions, although it may be…

High Energy Physics - Phenomenology · Physics 2007-05-23 Paul Hoyer

The differential cross section in the transverse momentum $Q$ and a total cross section of $(31\pm4)$ mb for the coherent dissociation of a 3-A-GeV/$c$ $^7$Li nucleus through the $^3$H$+^4$He channel have been measured on emulsion nuclei.…

Predictions for the diffractive photoproduction of the $\Upsilon$-family at HERA energies, within the framework of the analysis by Frankfurt, Koepf and Strikman, are presented. Two novel effects lead to a significant enhancement of the…

High Energy Physics - Phenomenology · Physics 2010-02-03 L. L. Frankfurt , M. F. McDermott , M. Strikman

We calculate inclusive photoproduction cross-sections for both proton and nuclei targets, using a saturation model derived from an approximate solution to the Balitsky-Kovchegov nonlinear evolution equation. This paper extends our…

High Energy Physics - Phenomenology · Physics 2011-07-19 J. Bartels , E. Gotsman , E. Levin , M. Lublinsky , U. Maor

The centrality dependence of sqrt(s_NN)= 200 GeV d+Au {J/\psi} data, measured in 12 rapidity bins that span -2.2 < y < 2.4, has been fitted using a model containing an effective absorption cross section combined with EPS09 NLO shadowing.…

Nuclear Theory · Physics 2013-06-05 D. C. McGlinchey , A. D. Frawley , R. Vogt

We present numerical results on diffractive dissociation with large invariant mass diffractive final states in the scattering of an electron off a hadron. The diffractive large-mass resummation is performed using the nonlinear…

High Energy Physics - Phenomenology · Physics 2023-08-15 Tuomas Lappi , Anh Dung Le , Heikki Mäntysaari

A very wide body of HERA diffractive electroproduction data is confronted with the predictions of the colour dipole model. In doing so we focus upon three different parameterisations of the dipole scattering cross-section, whose parameters…

High Energy Physics - Phenomenology · Physics 2008-11-26 Graham Shaw

Using a set of new odderon states, we calculate their contribution to the diffractive eta_c photo- and electroproduction process. Compared to previous simple 3-gluon exchange calculations we find an enhancement of about one order of…

High Energy Physics - Phenomenology · Physics 2009-01-07 J. Bartels , M. A. Braun , D. Colferai , G. P. Vacca

By evaluating all the contributions of the intermediate states of the multiple scattering theory diagrams, we compute the integrated stripping cross sections of collisions among light nuclei. The resulting expressions have the simple form…

High Energy Physics - Phenomenology · Physics 2009-10-31 Yu. M. Shabelski , D. Treleani