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Related papers: Nucleon structure functions at small $x$ via the P…

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The analysis on nucleon structure functions at small Bjorken $x$ in the framework of holographic QCD is presented. In the model setup, the complicated nonperturbative interaction between the virtual photon and the target nucleon is…

High Energy Physics - Phenomenology · Physics 2016-06-22 Akira Watanabe , Katsuhiko Suzuki

We study the nucleon and pion structure functions at small Bjorken-$x$ region in the framework of holographic QCD with a special emphasis on the roles of AdS space wave functions. Using the BPST kernel for the Pomeron exchange and…

High Energy Physics - Phenomenology · Physics 2012-08-14 Akira Watanabe , Katsuhiko Suzuki

We investigate the photon structure functions at small Bjorken variable $x$ in the framework of the holographic QCD, assuming dominance of the Pomeron exchange. The quasi-real photon structure functions are expressed as convolution of the…

High Energy Physics - Phenomenology · Physics 2015-11-04 Akira Watanabe , Hsiang-nan Li

We investigate the photon structure functions via the photon-photon and photon-vector meson scattering within the framework of holographic QCD, focusing on the small Bjorken $x$ region and assuming that the Pomeron exchange dominates. The…

High Energy Physics - Phenomenology · Physics 2025-10-29 Wei Gao , Siming Liu , Wenbin Lin , Akira Watanabe

We present our analysis on the photon structure functions at small Bjorken variable x in the framework of the holographic QCD. In the kinematic region, a photon can fluctuate into vector mesons and behaves like a hadron rather than a…

High Energy Physics - Phenomenology · Physics 2016-12-21 Akira Watanabe , Hsiang-nan Li

We study the electron-photon deep inelastic scattering at small Bjorken variable x in the framework of holographic QCD, employing the Pomeron exchange to describe the involved strong interaction. With the Brower-Polchinski-Strassler-Tan…

High Energy Physics - Phenomenology · Physics 2018-08-03 Akira Watanabe , Hsiang-nan Li

Nuclear effects in deep inelastic scattering at low$-x$ are phenomenologically described changing the typical dynamical and/or kinematical scales characterizing the free nucleon case. In a holographic approach, this rescaling is an…

High Energy Physics - Phenomenology · Physics 2015-06-18 L. Agozzino , P. Castorina , P. Colangelo

We investigate the nucleon and pion gluon distribution functions in the framework of holographic QCD, focusing on the small Bjorken x region. Based on an approximate relation, the gluon distributions are extracted from structure functions…

High Energy Physics - Phenomenology · Physics 2020-06-24 Akira Watanabe , Takahiro Sawada , Mei Huang

We present our analysis on the high energy scattering processes in the framework of the holographic QCD, assuming that the Pomeron exchange gives a dominant contribution to the cross sections. Focusing on the two-body scattering, we employ…

High Energy Physics - Phenomenology · Physics 2019-10-23 Akira Watanabe

The Pomeron dynamics is investigated via deep inelastic scattering (DIS) at small x in the framework of holographic quantum chromodynamics. The small x DIS process is assumed to be described by the graviton exchange between external vector…

High Energy Physics - Phenomenology · Physics 2015-06-11 Akira Watanabe , Katsuhiko Suzuki

We present a detailed analysis of nucleon electromagnetic and axial form factors in a holographic soft-wall model. This approach is based on an action which describes hadrons with broken conformal invariance and incorporates confinement…

High Energy Physics - Phenomenology · Physics 2012-08-23 Thomas Gutsche , Valery E. Lyubovitskij , Ivan Schmidt , Alfredo Vega

We study inclusive electroproduction on the proton at low $x$ and low $Q^2$ using a soft and a hard Pomeron. The contribution of the soft Pomeron is based on the Stochastic Vacuum Model, in which a nonperturbative dipole-dipole cross…

High Energy Physics - Phenomenology · Physics 2011-09-13 U. D'Alesio , A. Metz , H. J. Pirner

Symmetric and antisymmetric structure functions from electromagnetic deep inelastic scattering of charged leptons off spin-1/2 hadrons are investigated in the framework of a top-down holographic dual description. We consider the BPST…

High Energy Physics - Phenomenology · Physics 2022-10-12 David Jorrin , Martin Schvellinger

In the context of noncommutative space-time, we investigate the nucleon structure functions which plays an important role to identify the internal structure of nucleons. We use the corrected vertices and employ new vertices that appear in…

High Energy Physics - Phenomenology · Physics 2017-05-23 Ali Rafiei , Zahra Rezaei , Abolfazl Mirjalili

We present an improved study of the electromagnetic form factors of the nucleon and of the Roper-nucleon transition using an extended version of the effective action of soft-wall AdS/QCD. We include novel contribution from additional…

High Energy Physics - Phenomenology · Physics 2018-03-21 Thomas Gutsche , Valery E. Lyubovitskij , Ivan Schmidt

We analyze deep inelastic scattering at small Bjorken x, using the approximate conformal invariance of QCD at high energies. Hard pomeron exchanges are resummed eikonally, restoring unitarity at large values of the phase shift in the dual…

High Energy Physics - Phenomenology · Physics 2009-03-19 Lorenzo Cornalba , Miguel S. Costa

We present a study of the nucleon electromagnetic form factors and of the Roper-nucleon transition at finite small temperature $T$, using an extended version of a soft-wall AdS/QCD approach developed by us previously. In the action we…

High Energy Physics - Phenomenology · Physics 2020-02-04 Thomas Gutsche , Valery E. Lyubovitskij , Ivan Schmidt

We study both polarized and unpolarized proton structure functions in the kinematical region of large Bjorken x and four-momentum transfer of few GeV^2. In this region the phenomenon of parton-hadron duality takes place between the smooth…

High Energy Physics - Phenomenology · Physics 2017-08-23 A. Fantoni , S. Liuti

We present a detailed analysis of the polarized and the unpolarized deep inelastic scattering structure functions of the proton, g_1^p and F_2^p respectively, in the context of a holographic dual description based on type IIB superstring…

High Energy Physics - Phenomenology · Physics 2023-09-11 Ignacio Borsa , David Jorrin , Rodolfo Sassot , Martin Schvellinger

In the framework of Anisotropic Chromo Dynamics, a non-perturbative model of QCD based on magnetic condensation in the vacuum, we develope a picture of the Pomeron. Within this model we are able to calculate the diffractive contribution to…

High Energy Physics - Phenomenology · Physics 2009-10-28 L. Dick , V. Karapetian , R. Barni , G. Preparata
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