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If the excess events from the CoGeNT experiment arise from elastic scatterings of a light dark matter off the nuclei, crossing symmetry implies non-vanishing annihilation cross-sections of the light dark matter into hadronic final states…

High Energy Physics - Phenomenology · Physics 2011-01-17 Wai-Yee Keung , Ian Low , Gabe Shaughnessy

We briefly review the recent developments of probing the electroweak symmetry breaking mechanism at high energy colliders such as the CERN LEP2, the Fermilab Tevatron, the CERN LHC and the e(+)e(-) linear colliders. Both weakly interacting…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yu-Ping Kuang

Although the Higgs particle is at the centre-stage of the Standard Model of particle physics and in many other related models, it has not been experimentally found so far. One of the major objectives of the Large Hadron Collider experiments…

High Energy Physics - Phenomenology · Physics 2010-12-22 B. Ghosh , S. Aziz

A previously proposed unified field theory of electro-strong interactions requires two scales of length within hadrons, $\sim10^{-15}m$ and $\sim10^{-18}m$ respectively, and the onset of new phenomena at the shorter scale. Studies at the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Philip Yock

The interactions between atoms and molecules may be described by a potential energy function of the nuclear coordinates. Non-bonded interactions are dominated by repulsive forces at short range and attractive dispersion forces at long…

We investigate the interaction of ultracold antihydrogen with a conducting surface. Our discussion focuses on the physical regime where the phenomenon of quantum reflection manifests. We calculate the reflection probability as function of…

Atomic Physics · Physics 2008-11-26 A. Yu. Voronin , P. Froelich , B. Zygelman

This paper is concerned with the problem of scattering of time-harmonic electromagnetic waves from an impenetrable obstacle in a piecewise homogeneous medium. The well-posedness of the direct problem is established, employing the integral…

Analysis of PDEs · Mathematics 2015-05-18 Xiaodong Liu , Bo Zhang , Jiaqing Yang

The Anti-Matter Factory at CERN is gearing up, commissioning of the Extra Low ENergy Antiprotons (ELENA) ring is ongoing and the first anti-protons are foreseen to circulate in the decelerator very soon. The unprecedented flux of low energy…

Atomic Physics · Physics 2017-10-06 P. Crivelli , N. Kolachevsky

Preparing and detecting spatially extended quantum superpositions of a massive object comprises an important fundamental test of quantum theory. These quantum states are extremely fragile and tend to quickly decay into incoherent mixtures…

Quantum Physics · Physics 2016-07-12 Oleg Lychkovskiy

The quarks of quark models cannot be identified with the quarks of the QCD Lagrangian. We review the restrictions that gauge field theories place on any description of physical (colour) charges. A method to construct charged particles is…

High Energy Physics - Theory · Physics 2009-10-31 Emili Bagan , Robin Horan , Martin Lavelle , David McMullan

The low energy scattering of heavy positively charged particles on hydrogen atoms (H) are investigated by solving the Faddeev equations in configuration space. A resonant value of the pH scattering length, $a=750\pm 5$ a.u., in the pp…

Quantum Physics · Physics 2009-11-07 R. Lazauskas , J. Carbonell

Diffractive reactions involving a hard scale can be understood in terms of quarks and gluons. These reactions have become a valuable tool for investigating the low-x structure of the proton and the behavior of QCD in the high-density…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Arneodo , M. Diehl

The CERN Large Hadron Collider (LHC) started operation a few months ago. The machine will deliver proton-proton and nucleus-nucleus collisions at energies as high as sqrt(s)=14 TeV and luminosities up to L~10^{34} cm^{-2}s^{-1}, never…

High Energy Physics - Experiment · Physics 2011-05-03 David d'Enterria

Interference comes from coherent mixing. It can be suppressed by entanglement, and the latter can be erased so as to revive interference. If the entanglement is a mimal-term one (with minimal-term mixing), as is the case in most thought and…

Quantum Physics · Physics 2007-05-23 Fedor Herbut

We substantiate the need for account of the proper electromagnetic field of the electron in the canonical problem of hydrogen in relativistic quantum mechanics. From mathematical viewpoint, the goal is equivalent to determination of the…

Quantum Physics · Physics 2021-01-12 Leon V. Biguaa , Vladimir V. Kassandrov

We include the leading charge symmetry breaking contributions into the hyperon-nucleon interactions derived within chiral effective field theory up to next-to-leading order. Two low energy constants are determined using the experimentally…

Nuclear Theory · Physics 2022-02-28 Andreas Nogga , Johann Haidenbauer , Ulf-G. Meißner

There are experimental evidence for the occurrence of colour reconnection, but the mechanisms involved are far from understood. Previous reconnection studies are briefly summarized, and some potential implications for LHC physics are…

High Energy Physics - Phenomenology · Physics 2013-10-31 Torbjörn Sjöstrand

QCD is the fundamental theory to describe the strong interaction, where quarks and gluons have the color degrees of freedom. However, a single quark or gluon can not be separated out and all observable particles are color singlet states.…

General Physics · Physics 2021-09-22 P. Wang

We discuss a concept of a lower-energy version of the Large Hadron-electron Collider (LHeC), delivering electron-hadron collisions concurrently to the hadron-hadron collisions at the high-luminosity LHC at CERN. Assuming the use of a 20 GeV…

High Energy Physics - Experiment · Physics 2026-05-05 Kevin David J André , Laurent Forthomme , Bernhard Holzer , Krzysztof Piotrzkowski

We extend our analysis of the implications of hadronic supersymmetry for heavy-light hadrons in light-front holographic QCD. Although conformal symmetry is strongly broken by the heavy quark mass, supersymmetry and the holographic embedding…

High Energy Physics - Phenomenology · Physics 2017-02-22 Hans Gunter Dosch , Guy F. de Teramond , Stanley J. Brodsky