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Axion-like particles (ALPs) may undergo mixing with photons in the presence of astrophysical magnetic fields, leading to alterations in the observed high energy $\gamma$-ray spectra. In this study, we investigate the ALP-photon oscillation…

High Energy Astrophysical Phenomena · Physics 2024-03-06 Lin-Qing Gao , Xiao-Jun Bi , Jun-Guang Guo , Wenbin Lin , Peng-Fei Yin

Understanding microstructure in terms of closed-form expressions is an open challenge in nonequilibrium statistical physics. We propose a simple and generic method that combines particle-resolved simulations, deep neural networks and…

Soft Condensed Matter · Physics 2026-01-12 Writu Dasgupta , Suvendu Mandal , Aritra K. Mukhopadhyay , Benno Liebchen

We report on recent results on nucleon structure that are helping guide the search for new physics at the precision frontier. Results discussed include the electroweak elastic form factors, charge symmetry breaking in parton distributions…

High Energy Physics - Phenomenology · Physics 2015-05-27 Ross D. Young

The ATLAS collaboration has significant interest in the physics of ultra-relativistic heavy ion collisions. We submitted a Letter of Intent to the United States Department of Energy in March 2002. The following document is a slightly…

Nuclear Experiment · Physics 2007-05-23 S. Aronson , K. Assamagan , H. Gordon , M. Leite , M. Levine , P. Nevski , H. Takai , S. White , B. Cole , J. L. Nagle

One of the remaining challenges within the standard model is to gain a good understanding of QCD in the non-perturbative regime. A key step towards this aim is baryon spectroscopy, investigating the spectrum and the properties of baryon…

Nuclear Experiment · Physics 2016-12-01 Jan Hartmann

We theoretically analyze the experimental observations of a spectral line collapse in a metamaterial array of asymmetric split ring resonators [Fedotov et al., Phys. Rev. Lett. 104, 223901 (2010)]. We show that the ensemble of…

Optics · Physics 2012-10-03 S. D. Jenkins , J. Ruostekoski

In this paper we develop a method for studying tight contact structures on lens spaces. We then derive uniqueness and non-existence statements for tight contact structures with certain (half) Euler classes on lens spaces. We also prove that…

Differential Geometry · Mathematics 2007-05-23 John Etnyre

Some recent ZEUS results on the photoproduction of open charm and possible implications for photon structure are discussed.

High Energy Physics - Experiment · Physics 2007-05-23 J. M. Butterworth , ZEUS Collaboration

This paper presents a set of general strategies for the analysis of structure in amorphous materials and a general approach to assessing the utility of a selected structural description. Measures of structural diversity and utility are…

Soft Condensed Matter · Physics 2020-04-10 Dan Wei , Jie Yang , Min-Qiang Jiang , Lan-Hong Dai , Yun-Jiang Wang , Jeppe Dyre , Ian Douglass , Peter Harrowell

A resonance-like structure, the P_c(4450), has recently been observed in the J/psi p spectrum by the LHCb collaboration. We discuss the feasibility of detecting this structure in J/psi photoproduction in the CLAS12 experiment at JLab. We…

High Energy Physics - Phenomenology · Physics 2016-08-10 A. N. Hiller Blin , C. Fernández-Ramírez , A. Jackura , V. Mathieu , V. I. Mokeev , A. Pilloni , A. P. Szczepaniak

There is a rich program of forward physics measurements within the CMS Collaboration covering a wide range of topics. In many cases there is a connection to quantities and effects relevant for very high energy cosmic ray interaction. Some…

High Energy Physics - Experiment · Physics 2019-05-22 Ralf Ulrich

This paper proposes a simple, empirically derived, unifying structure for the inner regions of quasars. This structure is constructed to explain the broad absorption line (BAL) regions, the narrow `associated' ultraviolet and X-ray warm…

Astrophysics · Physics 2009-10-31 Martin Elvis

Complex band structure generalizes conventional band structure by also considering wavevectors with complex components. In this way, complex band structure describes both the bulk-propagating states from conventional band structure and the…

Materials Science · Physics 2017-07-20 Matthew G. Reuter

One of the long-standing puzzles observed in many laser-plasma experiments is the gap in the Raman backscattering spectrum. This gap is characterized by the absence of backscattered light between some critical wavelength and twice the…

Plasma Physics · Physics 2023-09-20 Ido Barth , Pierre Michel

I review a number of tests of theories for structure formation. Large-scale flows and IRAS galaxies indicate a high density parameter $\Omega \simeq 1$, in accord with inflationary predictions, but it is not clear how this meshes with the…

Astrophysics · Physics 2007-05-23 Nick Kaiser

In a recent publication the importance of measuaring light clusters at future NICA and FAIR experiments as "rare probes" for in-medium characteristics was presented. Within theoretical conciderations is shown how clusters would be affected…

Nuclear Theory · Physics 2017-11-16 N. -U. Bastian , D. Blaschke , G. Röpke

We experimentally demonstrate the nonclassical photon number correlations expected in tripartite continuous variable states obtained by parametric processes. Our scheme involves a single nonlinear crystal, where two interlinked parametric…

Quantum Physics · Physics 2009-11-13 Alessia Allevi , Maria Bondani , Matteo G. A. Paris , Alessandra Andreoni

I review at the non-specialist level recent progress in the study of the large-scale structure of the Universe, covering the following areas: (1) Results from recently completed or ongoing redshift surveys of galaxies and X-ray clusters;…

Astrophysics · Physics 2015-06-24 L. Guzzo

The amount of mass in small, dark matter clumps within galaxies (substructure) is an important test of cold dark matter. One approach to measuring the substructure mass fraction is to analyze the fluxes of images that have been strongly…

Astrophysics · Physics 2009-11-13 Jacqueline Chen

The general description of formation the cellular structure in the system of interacting particles is proposed. Interactions between particles are presumably well-understood and the phase transition in which can be studied in the scale of…

Statistical Mechanics · Physics 2008-02-22 Bohdan Lev
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