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The effect of multiple scatterings on the propagation of hard partonic jets in a dense nuclear medium is studied in the framework of deep-inelastic scattering (DIS) off a large nucleus. Power counting arguments based on the Glauber improved…

高能物理 - 唯象学 · 物理学 2015-06-05 Guang-You Qin , Abhijit Majumder

A measurement is presented of diffractive dijet production in deep-inelastic scattering (DIS) interactions at HERA of the type ep-->eXY, where the X system is separated by a large rapidity gap from a low-mass leading baryonic system Y. The…

高能物理 - 实验 · 物理学 2015-06-25 F. -P. Schilling

The transverse momentum distribution of the diffractive final state provides an interesting test of models of diffractive deep-inelastic scattering at HERA. We present a comparison of several colour-singlet exchange models with thrust…

高能物理 - 唯象学 · 物理学 2007-05-23 J. C. Williams

The transverse broadening of jets produced in deep-inelastic scattering (DIS) off a large nucleus is studied in the collinear limit. A class of medium enhanced higher twist corrections are re-summed to calculate the transverse momentum…

核理论 · 物理学 2008-11-26 A. Majumder , B. Müller

In three spatial dimensions, in the unitary limit of a non-relativistic quantum Bose or Fermi gas, the scattering length diverges. This occurs at a renormalization group fixed point, thus these systems present interesting examples of…

量子气体 · 物理学 2011-02-16 Pye-Ton How , Andre LeClair

Deep inelastic scattering (DIS) of charged leptons off scalar mesons in the $1/N$ expansion is studied by using the gauge/gravity duality. We focus on the D3D7-brane system and investigate the corresponding structure functions by…

高能物理 - 理论 · 物理学 2016-09-06 Nicolas Kovensky , David Jorrin , Martin Schvellinger

We show within the saturation framework that measurements of exclusive vector meson production at high energy provide evidence for strong geometric fluctuations of the proton. In comparison, the effect of saturation scale and color charge…

高能物理 - 唯象学 · 物理学 2016-07-26 Heikki Mäntysaari , Björn Schenke

We compute cross sections for incoherent diffractive J/Psi production in lepton-nucleus deep inelastic scattering. The cross section is proportional to A in the dilute limit and to A^(1/3) in the black disc limit, with a large nuclear…

高能物理 - 唯象学 · 物理学 2015-03-17 T. Lappi , H. Mäntysaari

We consider driven many-particle models which have a phase transition between an active and an absorbing phase. Like previously studied models, we have particle conservation, but here we introduce an additional symmetry - when two particles…

统计力学 · 物理学 2017-01-18 Daniel Hexner , Dov Levine

For the inelastic diffraction, we obtain an upper bound valid in the whole range of the elastic scattering amplitude variation allowed by unitarity. We discuss the energy dependence of the inelastic diffractive cross-section on the base of…

高能物理 - 唯象学 · 物理学 2017-01-16 S. M. Troshin , N. E. Tyurin

Unintegrated gluon densities in nuclei, dipole-nucleus cross-sections and quark densities are numerically investigated in the high-colour limit, with the scattering on a heavy nucleus exactly described by the sum of fan diagrams of BFKL…

高能物理 - 唯象学 · 物理学 2009-01-07 N. Armesto , M. A. Braun

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…

高能物理 - 唯象学 · 物理学 2009-03-19 Lorenzo Cornalba , Miguel S. Costa

We use information from DIS and the two gluon nucleon form factor to estimate the impact parameter amplitude of hadronic configurations in the dipole model of DIS. We demonstrate that only a small fraction of the total $\gamma^{\ast}N$…

高能物理 - 唯象学 · 物理学 2007-05-23 T. C. Rogers , M. I. Strikman

We discuss a series of results aimed at bringing saturation physics and gluon tomography into an era of precision. In particular, the NLO treatment of diffractive: 1) exclusive dijet, 2) exclusive longitudinally polarized light vector meson…

高能物理 - 唯象学 · 物理学 2024-08-20 Renaud Boussarie , Michael Fucilla , Andrey V. Grabovsky , Emilie Li , Lech Szymanowski , Samuel Wallon

The modern S-Matrix Bootstrap provides non-perturbative bounds on low-energy aspects of scattering amplitudes, leveraging the constraints of unitarity, analyticity and crossing. Typically, the solutions saturating such bounds also saturate…

高能物理 - 理论 · 物理学 2023-10-12 António Antunes , Miguel S. Costa , José Pereira

We present various aspects of the saturation model which provides good description of inclusive and diffractive DIS at small x. The model uses parton saturation ideas to take into account unitarity requirements. A new scaling predicted by…

高能物理 - 唯象学 · 物理学 2010-03-25 Krzysztof Golec-Biernat

The Lorentz contraction of ultrarelativistic nuclei entails a spatial overlap and fusion (recombination, saturation) of partons belonging to different nucleons at the same impact parameter. In these lectures we present a consistent…

高能物理 - 唯象学 · 物理学 2007-05-23 I. P. Ivanov , N. N. Nikolaev , W. Schäfer , B. G. Zakharov , V. R. Zoller

Recent results on dijet production in deep-inelastic scattering from the H1 experiment at the ep-collider HERA are presented. Internal jet structure has been studied in terms of jet shapes and subjet multiplicities in the Breit frame. Both…

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

The solution to the BFKL equation grows like a power of center of mass energy, s, violating unitarity conditions at high energies. The growth of the cross section can be tamed by taking into account multiple pomeron exchanges. This is known…

高能物理 - 唯象学 · 物理学 2007-05-23 Emil Avsar

A study of saturation effects in two-hard-scale hadronic processes such as Mueller-Navelet jets is presented. The cross-sections are expressed in the dipole framework while saturation is implemented via an extention of the Golec-Biernat and…

高能物理 - 唯象学 · 物理学 2007-05-23 Cyrille Marquet