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The photonuclear production of vector mesons in ultraperipheral heavy ion collisions is investigated within the collinear approach using different parameterizations for the nuclear gluon distribution. The integrated cross section and the…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. L. Ayala Filho , V. P. Goncalves , M. T. Griep

Azimuthal asymmetries in exclusive electroproduction of real photons are measured for the first time with respect to transverse target polarisation, providing new constraints on Generalized Parton Distributions. From the same data set on a…

High Energy Physics - Experiment · Physics 2009-03-19 HERMES Collaboration , A. Airapetian

The total photoproduction cross section at ultra-high energies is obtained using a model based on QCD minijets and soft-gluon resummation and the ansatz that infrared gluons limit the rise of total cross sections. This cross section is…

High Energy Physics - Phenomenology · Physics 2016-01-20 F. Cornet , C. A. Garcia Canal , A. Grau , G. Pancheri , S. J. Sciutto

The double-slit experiment has become a classic thought experiment, for its clarity in expressing the central puzzle of quantum mechanics -- wave-particle complementarity. Such wave-particle duality continues to be challenged and…

High Energy Physics - Phenomenology · Physics 2019-06-26 Wangmei Zha , Lijuan Ruan , Zebo Tang , Zhangbu Xu , Shuai Yang

A recent analysis of pion photo-production multipoles using p(g,pi0) data from Mainz is repeated, successively adding constraints from other observables and varying the number of fitted partial waves. The original analysis is shown to have…

Nuclear Theory · Physics 2008-02-03 A. M. Sandorfi , J. Tonnison , S. Hoblit

Correlated electron systems may give rise to multiple effective interactions whose combined impact on quasiparticle properties can be difficult to disentangle. We introduce an unambiguous decomposition of the electronic self-energy which…

Strongly Correlated Electrons · Physics 2025-07-11 Yang Yu , Sergei Iskakov , Emanuel Gull , Karsten Held , Friedrich Krien

In this work, I study the mixing of photons with pseudoscalar particles and vice-versa in the presence of an external magnetic field and a pseudoscalar field. I solve exactly for the first time in the literature the equations of motion of…

High Energy Physics - Theory · Physics 2021-05-11 Damian Ejlli

A simple and general prescription for evaluating unambiguously the sign of the grand-canonical trace of quasi-particle statistical density operators (the so-called sign ambiguity in taking the square root of determinants) is given. Sign…

Nuclear Theory · Physics 2014-11-20 G. Puddu

Diffractive vector meson photoproduction accompanied by proton dissociation is studied for large momentum transfer. The process is described by the non-forward BFKL equation which we use to compare to data collected at the HERA collider.

High Energy Physics - Phenomenology · Physics 2009-11-10 G. G. Poludniowski , R. Enberg , J. R. Forshaw , L. Motyka

We have investigated the accuracies of calculations made by omitting the higher partial waves of nuclear wave functions and the elementary relativistic terms in the hypertriton electroproduction. We found that an accurate calculation would…

Nuclear Theory · Physics 2008-12-18 T. Mart

Deviation from standard dispersion relations for electrons and photons in the form of an extra term proportional to an arbitrarily high power of momentum is studied. It is shown that observational constraints lead to a region in the…

General Relativity and Quantum Cosmology · Physics 2019-12-16 Vladimír Balek , Orchidea Maria Lecian

Resonance plays critical roles in the formation of many physical phenomena, and many techniques have been developed for the exploration of resonance. In a recent letter [Phys. Rev. Lett. 117, 062502 (2016)], we proposed a new method for…

Nuclear Theory · Physics 2017-02-15 Zhi Fang , Min Shi , Jian-You Guo , Zhong-Ming Niu , Haozhao Liang , Shi-Sheng Zhang

Duality in the entanglement of identical particles manifests that entanglement in only one variable can be revealed at a time. We demonstrate this using polarization and orbital angular momentum (OAM) variables of indistinguishable photons…

Quantum Physics · Physics 2025-11-20 Nijil Lal , Sarika Mishra , Anju Rani , Anindya Banerji , Chithrabhanu Perumangattu , R. P. Singh

We analyze the effects of an in-medium broadening of nucleon resonances on the exclusive photoproduction of mesons on nuclei as well as on the total photoabsorption cross sections in a transport calculation. We show that the resonance…

Nuclear Theory · Physics 2009-11-07 J. Lehr , U. Mosel

The excitation spectrum of the nucleon consists of several overlapping resonances. To identify these resonances and their contributions to the measured cross sections, a partial wave analysis is used. A set of at least eight, well chosen,…

Nuclear Experiment · Physics 2011-09-23 Marcus Grüner

Experimental studies of meson production through two-photon fusion in inelastic electron-nucleus scattering is now under way. A high-energy photon radiated by the incident electron is fused with a soft photon radiated by the nucleus. The…

Nuclear Theory · Physics 2013-05-29 Göran Fäldt

We present a comprehensive study of the destruction of quantum multifractality in the presence of perturbations. We study diverse representative models displaying multifractality, including a pseudointegrable system, the Anderson model and…

Chaotic Dynamics · Physics 2015-10-01 R. Dubertrand , I. García-Mata , B. Georgeot , O. Giraud , G. Lemarié , J. Martin

Differential cross sections of $t \overline{t}$ production have been measured by the ATLAS experiment at the LHC. Monte Carlo calculations provide an overall good modeling of all measured distributions, except for the transverse momentum of…

High Energy Physics - Experiment · Physics 2019-01-16 Matteo Negrini

In experiment, the multiplicity distributions of inelastic processes are truncated due to finite energy, insufficient statistics or special choice of events. It is shown that the moments of such truncated multiplicity distributions possess…

High Energy Physics - Phenomenology · Physics 2015-06-25 I. M. Dremin , V. A. Nechitailo

A novel phenomenon of anomalous contrast in scanning electron microscope when the instrument is used to observe an insulator specimen with a wolfram probe, we called double imaging, is reported in this article. We give a detail analysis of…

Materials Science · Physics 2016-04-18 Lilin Xie , Xiaona Zhang
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