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相关论文: Complex 2D Matrix Model and Its Application to Nc-…

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In this paper we review recent progress in hadron structure using lattice QCD simulations, with main focus in the evaluation of nucleon matrix elements. We highlight developments that may guide new Physics searches, such as the scalar and…

高能物理 - 格点 · 物理学 2017-04-05 Martha Constantinou

The generalization of the Feynman-Hellmann theorem for resonance states in quantum field theory is derived. On the basis of this theorem, a criterion is proposed to study the possible exotic nature of certain hadronic states emerging in…

高能物理 - 格点 · 物理学 2017-10-24 J. Ruiz de Elvira , U. -G. Meißner , A. Rusetsky , G. Schierholz

We study dilute suspensions of magnetic nanoparticles in a nematic host, on two-dimensional (2D) polygons. These systems are described by a nematic order parameter and a spontaneous magnetization, in the absence of any external fields. We…

软凝聚态物质 · 物理学 2021-05-19 Yucen Han , Joseph Harris , Joshua Walton , Apala Majumdar

The internal disorder of a D-dimensional hydrogenic system, which is strongly associated to the non-uniformity of the quantum-mechanical density of its physical states, is investigated by means of the shape complexity in the two reciprocal…

量子物理 · 物理学 2015-05-13 S. Lopez-Rosa , D. Manzano , J. S. Dehesa

We explore the physics of the parton-hadron duality in the nucleon structure functions appearing in lepton-nucleon scattering. We stress that the duality allows one to extract the higher-twist matrix elements from data in the resonance…

高能物理 - 唯象学 · 物理学 2009-10-28 Xiangdong Ji , Peter Unrau

We study nuclear effects on the deuteron in the deep inelastic regime using the newest available data analyzing their $Q^2$ dependence. We conclude that precise EMC ratios for large $Q^2$ (> 30, GeV$^2$) cannot be obtained without…

高能物理 - 唯象学 · 物理学 2017-06-28 C. A. Garcìa Canal , T. Tarutina , V. Vento

Transverse momentum spectra of charged particle production in heavy-ion collisions are considered in terms of a recently introduced Two Component parameterization combining exponential ("soft") and power-law ("hard") functional forms. The…

高能物理 - 唯象学 · 物理学 2016-02-17 A. A. Bylinkin , N. S. Chernyavskaya , A. A. Rostovtsev

Deep inelastic scattering of leptons from hadrons at small values of the Bjorken parameter $x$ is studied from superstring theory. In particular, we focus on single-flavored scalar and vector mesons in the large $N$ limit. This is studied…

高能物理 - 理论 · 物理学 2015-05-20 Ezequiel Koile , Nicolas Kovensky , Martin Schvellinger

Quark-hadron duality is studied in a systematic way for polarized and unpolarized structure functions, by taking into account all the available data in the resonance region. In both cases, a precise perturbative QCD based analysis of the…

高能物理 - 唯象学 · 物理学 2009-11-11 A. Fantoni , N. Bianchi , S. Liuti

We present a vision for the next decade of hadron physics in which the central question being addressed is how one might win new physical insight into the way hadronic systems work. The topics addressed include the relevance of model…

核理论 · 物理学 2015-06-19 A. W. Thomas

Photonic structures with high-$Q$ resonances are essential for many practical applications, and they can be relatively easily realized by modifying ideal structures with bound states in the continuum (BICs). When an ideal photonic structure…

光学 · 物理学 2023-04-05 Amgad Abdrabou , Lijun Yuan , Wangtao Lu , Ya Yan Lu

We identify conditions under which a summation over nucleon resonances can yield, via quark-hadron duality, parton model results for electromagnetic and neutrino structure functions at large x. While a summation over the lowest even and odd…

高能物理 - 唯象学 · 物理学 2008-11-26 F. E. Close , W. Melnitchouk

The defect of a complex Hadamard matrix $H$ is an upper bound for the dimension of a continuous Hadamard orbit stemming from $H$. We provide a new interpretation of the defect as the dimension of the center subspace of a gradient flow and…

数学物理 · 物理学 2016-11-02 Francis C. Motta , Patrick D. Shipman

In a finite volume, resonances and multi-hadron states are identified by discrete energy levels. When comparing the results of lattice QCD calculations to scattering experiments, it is important to have a way of associating the energy…

高能物理 - 格点 · 物理学 2015-03-20 J. M. M. Hall , A. C. -P. Hsu , D. B. Leinweber , A. W. Thomas , R. D. Young

Experimental evidence has been growing for the existence of both molecular and exotic dibaryons. The former are dominated by hadron and the latter by quark-gluon degrees of freedom. Exotic dihadrons are of particular interest because their…

核理论 · 物理学 2007-05-23 E. L. Lomon

The properties of a helix-like shaped QCD string are studied in the context of the Lund fragmentation model, where the concept of a 3-dimensional structure of the gluon field offers an alternative aproach to the modelling of the transverse…

高能物理 - 唯象学 · 物理学 2013-05-30 Sharka Todorova

We introduce an algebraic framework for the description of baryons. Within this framework we study a collective string-like model and show that this model gives a good overall description of the presently available data. We discuss in…

核理论 · 物理学 2011-07-19 R. Bijker , F. Iachello , A. Leviatan

The dependence of the spectra shape of produced charged hadrons on the size of a colliding system is discussed using a two component model. As a result, the hierarchy by the system-size in the spectra shape is observed. Next, the…

高能物理 - 唯象学 · 物理学 2014-07-16 A. A. Bylinkin , N. S. Chernyavskaya , A. A. Rostovtsev

Understanding the effects of a background hadronic medium on hadronic observables is important in the context of hadron structure. Many experiments probing nucleon structure make use of nuclear targets and unraveling the modifications that…

高能物理 - 格点 · 物理学 2011-12-30 William Detmold , Huey-Wen Lin

The properties of the extremely strong magnetic fields of neutron stars affect in a unique way their evolution and the associated phenomenology. Due to the lack of constraints from direct observations, our understanding of the magnetic…

高能天体物理现象 · 物理学 2015-06-22 Riccardo Ciolfi