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We reconsider the Standard Model interactions of ultra-high energy neutrinos with matter. The next to leading order QCD corrections are presented for charged-current and neutral-current processes. Contrary to popular expectations, these…

高能物理 - 唯象学 · 物理学 2009-11-07 Rahul Basu , Debajyoti Choudhury , Swapan Majhi

We pose the question: how far can we push the QCD dipole model and the idea of QCD saturation to the kinematical regions traditionally associated with soft nonperturbative physics? The answer is that it works sufficiently well allowing a…

高能物理 - 唯象学 · 物理学 2007-05-23 M. Lublinsky

The next-to-leading order (NLO) corrections to the BFKL equation in the BLM optimal scale setting are briefly discussed. A striking feature of the BLM approach is rather weak Q^2-dependence of the Pomeron intercept, which might indicate an…

高能物理 - 唯象学 · 物理学 2007-05-23 Victor T. Kim , Lev N. Lipatov , Grigorii B. Pivovarov

Using the colour dipole approach of the QCD perturbative (BFKL) Pomeron exchange in onium-onium scattering, we compute the cross section for small but hierarchically different onium sizes. A specific term dependent on the size-ratio is…

高能物理 - 唯象学 · 物理学 2008-11-26 H. Navelet , R. Peschanski , Ch. Royon

In this paper we suggest a new approach to the structure of the soft Pomeron: based on the $t$-channel unitarity, we expressed the exchange of the soft Pomeron through the interaction of the dipole of small size of the order of $1/Q_s(Y)$…

高能物理 - 唯象学 · 物理学 2022-08-31 Carlos Contreras , Eugene Levin , Michael Sanhueza

In this paper $\gamma^* - \gamma^*$ scattering with large, but more or less equal virtualities of two photons is discussed using BFKL dynamics, emphasizing the large impact parameter behavior ($b_t$) of the dipole-dipole amplitude. It is…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Bondarenko , M. Kozlov , E. Levin

Using the dipole framework for QCD at small x in the 1/N_c limit, we derive the expression of the 1 -> p dipole multiplicity density in momentum space. This gives an analytical expression for the 1 -> p QCD Pomeron amplitudes in terms of…

高能物理 - 唯象学 · 物理学 2008-11-26 R. A. Janik , R. Peschanski

We investigate higher order effects in the nonrelativistic expansion of lattice QCD on the heavy-light meson decay constants and some other quantities in order to understand the truncation error of NRQCD. While our numerical results have…

高能物理 - 格点 · 物理学 2011-01-27 N. Yamada , S. Hashimoto , K-I. Ishikawa , H. Matsufuru , T. Onogi

We construct a Gaussian approximation to the effective theory for the Colour Glass Condensate which describes correctly the gluon distribution both in the low density regime at high transverse momenta (above the saturation scale $Q_s$), and…

高能物理 - 唯象学 · 物理学 2011-01-25 Edmond Iancu , Kazunori Itakura , Larry McLerran

We continue exploring the Born-Oppenheimer renormalization group generating evolution in frequency of physical observables. In this paper we study the evolution of the total cross section for dilute-dilute scattering retaining only eikonal…

高能物理 - 唯象学 · 物理学 2024-12-25 Haowu Duan , Alex Kovner , Michael Lublinsky

We compare two competing conjectures of the color confinement in QCD, the monopole condensation and the Abelian dominance, and show that it is the monopole condensation which is responsible for the confinement. To demonstrate this we…

高能物理 - 理论 · 物理学 2018-03-22 Y. M. Cho

We calculate the one-loop corrections to dihadron production in Deep Inelastic Scattering (DIS) at small x using the Color Glass Condensate formalism. We show that all UV and soft singularities cancel while the collinear divergences are…

高能物理 - 唯象学 · 物理学 2022-10-12 Filip Bergabo , Jamal Jalilian-Marian

Recent developments in theory on the calculation of \gamma^* \gamma^* reaction at high energies, in the aim of detecting the BFKL Pomeron signals, are briefly introduced. The importance of the NLO QCD corrections to the Photon Impact Factor…

高能物理 - 唯象学 · 物理学 2009-10-31 Cong-Feng Qiao

I review the physical and mathematical foundations for the theoretical description of the hadron wavefunction at small $x$ as a Colour Glass Condensate. In this context, I discuss the phenomenon of gluon saturation and some of its…

高能物理 - 唯象学 · 物理学 2011-01-25 Edmond Iancu

I give a brief overview of the effective theory for the Color Glass Condensate, which is the high-density gluonic matter which controls high-energy scattering in QCD in the vicinity of the unitarity limit. I concentrate on fundamental…

高能物理 - 唯象学 · 物理学 2015-05-13 Edmond Iancu

We show that the HERA data for the inclusive structure function F_2(x,Q^2) for x < 0.01 and 0.045 < Q^2 < 45 GeV^2 can be well described within the color dipole picture, with a simple analytic expression for the dipole-proton scattering…

高能物理 - 唯象学 · 物理学 2008-11-26 E. Iancu , K. Itakura , S. Munier

In this paper we consider the influence of non-perturbative corrections on the large $ b $ (impact parameter) behavior of the BFKL amplitude. This is done in the framework of a model where such ``soft'' corrections are taken into account in…

高能物理 - 唯象学 · 物理学 2009-11-10 Sergey Bondarenko

The leading nonperturbative QCD corrections to the one gluon exchange quark-quark, quark-antiquark and $q \bar{q}$ pair-excitation potentials are derived by using a covariant form of nonlocal two-quark and two-gluon vacuum expectation…

高能物理 - 唯象学 · 物理学 2009-10-31 J. J. Yang , H. Q. Shen , G. L. Li , T. Huang , P. N. Shen

High-energy virtual photon-virtual photon scattering can be viewed as interaction of small size color dipoles from the beam and target photons, which makes $\gamma^{*}\gamma^{*}, \gamma^{*}\gamma$ scattering at high energies (LEP, LEP200 &…

高能物理 - 唯象学 · 物理学 2011-09-13 N. N. Nikolaev , J. Speth , V. R. Zoller

We review the theoretical interpretation of deep-inelastic electron-proton scattering at low values of the Bjorken variable $x \simeq Q^2/W^2 \lsim 0.1$. The process proceeds via the interaction of quark-antiquark $(q \bar q)$ color-dipole…

高能物理 - 唯象学 · 物理学 2012-10-03 Dieter Schildknecht