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The distribution of the azimuthal angle for the charged hadrons has been studied in the hadronic centre-of-mass system for neutral current deep inelastic positron-proton scattering at HERA. Measurements of the dependence of the moments of…

High Energy Physics - Experiment · Physics 2007-05-23 N H Brook

Two particle azimuthal correlation functions are presented for charged hadrons produced in Au-Au collisions at RHIC sqrt(s_NN)=200 GeV.The correlation functions indicate sizeable asymmetries and anisotropies. The trend of the asymmetries is…

Nuclear Experiment · Physics 2009-11-07 N. N. Ajitanand

In a superconductor with magnetic impurities, Kondo scattering results in the formation of localized states inside the superconducting gap. We show that inelastic electronic transitions involving quasiparticle scattering into and out of the…

Superconductivity · Physics 2008-04-11 A. G. Kozorezov , A. A. Golubov , J. K. Wigmore , D. Martin , P. Verhoeve , R. A. Hijmering

We analyze the hadronic uncertainty from light-quark loops coupled to (anti)neutrino in low-energy neutral-current (anti)neutrino scattering, estimated at the $3$-$4$ permille level. This uncertainty arises from limited knowledge of the…

High Energy Physics - Phenomenology · Physics 2026-01-21 Oleksandr Tomalak

Most signatures of new physics have been studied on the transverse plane with respect to the beam direction at the LHC where background is much reduced. In this paper we propose the analysis of inclusive longitudinal (pseudo)rapidity…

High Energy Physics - Phenomenology · Physics 2010-04-30 Miguel-Angel Sanchis-Lozano

A single-spin asymmetry in the azimuthal distribution of neutral pions relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of positrons off longitudinally polarized protons. The…

High Energy Physics - Experiment · Physics 2010-05-28 HERMES Collaboration , A. Airapetian

Semi-inclusive processes are very promising to investigate $XYZ$ hadrons at the next generation of electron-hadron facilities, because they generally boast higher cross sections. We extend our formalism of exclusive photoproduction to…

High Energy Physics - Phenomenology · Physics 2022-11-08 JPAC Collaboration , D. Winney , A. Pilloni , V. Mathieu , A. N. Hiller Blin , M. Albaladejo , W. A. Smith , A. Szczepaniak

Elastic light-by-light(LbL) scattering, one of the most fascinating processes in the Standard Model(SM), has recently been observed in the ultraperipheral collisions(UPCs) of relativistic heavy ions in the Atlas and CMS experiments at the…

High Energy Physics - Phenomenology · Physics 2025-03-18 Yu Jia , Shuo Lin , Jian Zhou , Ya-jin Zhou

We discuss forward-backward charge asymmetries for lepton pair production in association with a large transverse momentum jet at hadron colliders. The measurement of the lepton charge asymmetry relative to the jet direction A_{FB}^j gives a…

High Energy Physics - Phenomenology · Physics 2009-11-07 F. del Aguila , Ll. Ametller , P. Talavera

During the 2008 run the Relativistic Heavy Ion Collider (RHIC) at the Brookhaven Nation Laboratiory (BNL), NY, provided high luminosity in both p+p and d+Au collisions at $\sqrt{s_{NN}}=200\mathrm{\,GeV}$. Electromagnetic calorimeter…

Nuclear Experiment · Physics 2011-02-07 Ermes Braidot

We present results for leading-twist azimuthal asymmetries in semi-inclusive lepton-nucleon deep-inelastic scattering due to naively time-reversal odd transverse-momentum dependent parton distribution functions from the light-cone…

High Energy Physics - Phenomenology · Physics 2011-07-08 B. Pasquini , P. Schweitzer

Scattering in a model of a massive quantum-mechanical particle, an ``electron'', interacting with massless, relativistic bosons, ``photons'', is studied. The interaction term in the Hamiltonian of our model describes emission and absorption…

Mathematical Physics · Physics 2007-05-23 J. Froehlich , M. Griesemer , B. Schlein

In this paper we present the study of the azimuthal correlation function of non-photonic electrons with low-pT hadrons produced in Cu+Cu collision at sqrt(s_NN)=200 GeV measured by STAR experiment at RHIC. Possible modification of the…

Nuclear Experiment · Physics 2009-06-02 Miroslav Krus

Recent measurements from the HERMES and SMC collaborations show a remarkably large azimuthal single-spin asymmetries A_{UL} and A_{UT} of the proton in semi-inclusive pion leptoproduction. We show that final-state interactions from gluon…

High Energy Physics - Phenomenology · Physics 2008-11-26 Stanley J. Brodsky , Dae Sung Hwang , Ivan Schmidt

The interplay between strong light-matter interactions and charge doping represents an important frontier in the pursuit of exotic many-body physics and optoelectronics. Here, we consider a simplified model of a two-dimensional…

Mesoscale and Nanoscale Physics · Physics 2021-05-19 Guangyao Li , Olivier Bleu , Meera M. Parish , Jesper Levinsen

Recent results at STAR for direct $\gamma$-charged hadron azimuthal correlations in heavy-ion collisions are presented. These correlations are used to study the color charge density of the medium through the medium-induced modification of…

Nuclear Experiment · Physics 2008-11-11 A. M. Hamed

The charge asymmetry due to higher-order QED corrections in elastic lepton-proton scattering is estimated without employing the ultrarelativistic approximation. Our calculation is performed by generalizing the soft-photon approximation…

Nuclear Theory · Physics 2017-07-12 O. Koshchii , A. Afanasev

The anomalous magnetic (MDM) and electric (EDM) dipole moments of the $\tau$ lepton serve as crucial indicators of new physics beyond the Standard Model. Leveraging azimuthal angular asymmetry as a novel tool in ultraperipheral collisions…

High Energy Physics - Phenomenology · Physics 2024-04-11 Ding Yu Shao , Bin Yan , Shu-Run Yuan , Cheng Zhang

Charge-odd correlation of the charged pair components produced at electron-proton scattering can measure three current correlation averaged by proton state. In general these type correlation can be described by 14 structure functions. We…

High Energy Physics - Phenomenology · Physics 2015-05-18 A. I. Ahmadov , Yu. M. Bystritskiy , E. A. Kuraev , A. N. Ilyichev

We investigate the impact parameter dependence of the $\cos 4\phi$ azimuthal asymmetry for electromagnetic lepton pair production in heavy ion collisions. The asymmetry induced by linearly polarized coherent photons exhibits strong impact…

High Energy Physics - Phenomenology · Physics 2020-02-19 Cong Li , Jian Zhou , Ya-jin Zhou