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The operation of HERA with polarized proton and electron beams will allow to study a wide variety of observables in polarized electron-proton collisions at $\sqrt s=300$ GeV. The physics prospects of this project have been elaborated in…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. De Roeck , T. Gehrmann

The production of hadrons in polarized lepton-nucleon deep inelastic scattering is discussed. The helicity density matrix of the hadron is computed within the QCD hard scattering formalism and its elements are shown to yield information on…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Anselmino , M. Boglione , J. Hansson , F. Murgia

The spin structure functions of the proton and the deuteron were measured during the EG4 experiment at Jefferson Lab in 2006. Data were collected for longitudinally polarized electron scattering off longitudinally polarized NH$_3$ and…

Nuclear Experiment · Physics 2026-01-06 A. Deur , S. E. Kuhn , M. Ripani , X. Zheng , A. G. Acar , P. Achenbach , K. P. Adhikari , J. S. Alvarado , M. J. Amaryan , W. R. Armstrong , H. Atac , H. Avakian , L. Baashen , N. A. Baltzell , L. Barion , M. Bashkanov , M. Battaglieri , B. Benkel , F. Benmokhtar , A. Bianconi , A. S. Biselli , W. A. Booth , F. B ossu , P. Bosted , S. Boiarinov , K. Th. Brinkmann , W. J. Briscoe , S. Bueltmann , V. D. Burkert , D. S. Carman , P. Chatagnon , J. P. Chen , G. Ciullo , P. L. Cole , M. Contalbrigo , V. Crede , A. D'Angelo , N. Dashyan , R. De Vita , M. Defurne , S. Diehl , C. Djalali , V. A. Drozdov , R. Dupre , H. Egiyan , A. El Alaoui , L. El Fassi , L. Elouadrhiri , P. Eugenio , J. C. Faggert , S. Fegan , R. Fersch , A. Filippi , K. Gates , G. Gavalian , G. P. Gilfoyle , R. W. Gothe , L. Guo , H. Hakobyan , M. Hattawy , F. Hauenstein , D. Heddle , A. Hobart , M. Holtrop , D. G. Ireland , E. L. Isupov , H. Jiang , H. S. Jo , S. Joosten , H. Kang , C. Keith , M. Khandaker , W. Kim , F. J. Klein , V. Klimenko , P. Konczykowski , K. Kovacs , A. Kripko , V. Kubarovsky , L. Lanza , S. Lee , P. Lenisa , X. Li , E. Long , I. J. D. MacGregor , D. Marchand , V. Mascagna , D. Matamoros , B. McKinnon , D. Meekins , S. Migliorati , T. Mineeva , M. Mirazita , V. Mokeev , C. Munoz-Camacho , P. Nadel-Turonski , T. Nagorna , K. Neupane , S. Niccolai , M. Osipenko , A. I. Ostrovidov , P. Pandey , M. Paolone , L. L. Pappalardo , R. Paremuzyan , E. Pasyuk , S. J. Paul , W. Phelps , S. K. Phillips , J. Pierce , N. Pilleux , M. Pokhrel , J. W. Price , Y. Prok , A. Radic , T. Reed , J. Richards , G. Rosner , P. Rossi , A. A. Rusova , C. Salgado , A. Schmidt , R. A. Schumacher , Y. G. Sharabian , E. V. Shirokov , U. Shrestha , S. Sirca , K. Slifer , N. Sparveris , M. Spreafico , S. Stepanyan , I. I. Strakovsky , S. Strauch , V. Sulkosky , J. A. Tan , M. Tenorio , N. Trotta , R. Tyson , M. Ungaro , D. W. Upton , S. Vallarino , L. Venturelli , H. Voskanyan , E. Voutier , D. P. Watts , X. Wei , M. H. Wood , N. Zachariou , J. Zhang , M. Zurek

We calculate the double-spin asymmetries $A_{\mathrm{LL}}$ for the processes $\ell N\to h X$ and $\ell N\to {\mathrm{jet}}\, X$ at next-to-leading order accuracy in perturbative QCD. We compare our theoretical results for $A_{\mathrm{LL}}$…

High Energy Physics - Phenomenology · Physics 2017-07-19 Patriz Hinderer , Marc Schlegel , Werner Vogelsang

We study spin diffusion and spin waves in paramagnetic quantum crystals (solid He-3, for example) by direct simulation of a square lattice of atoms interacting via a nearest-neighbor Heisenberg exchange Hamiltonian. Recently, Cowan and…

Statistical Mechanics · Physics 2007-05-23 R. Ragan , K. Grunwald , C. Glenz

The Spin Physics Detector (SPD) at the Nuclotron based Ion Collider fAcility (NICA) is a multi-purpose experiment designed to study nucleon spin structure in the three dimensions. With capabilities to collide polarized protons and deuterons…

High Energy Physics - Experiment · Physics 2023-10-06 Alexey Guscov , Amaresh Datta , Anton Karpishkov , Igor Denisenko , Vladimir Saleev

In non-central nuclear collisions, the created matter should exhibit strong vorticity, which induces spin polarization. Global polarization is a good tool to investigate the dynamics of the system. Global polarization of $\Lambda$ and…

Nuclear Experiment · Physics 2022-02-16 Kosuke Okubo

We use semiclassical Monte Carlo approach along with spin density matrix calculations to model spin polarized electron transport. The model is applied to germanium nanowires and germanium two dimensional channels to study and compare spin…

Mesoscale and Nanoscale Physics · Physics 2011-06-23 Ashish Kumar , Bahniman Ghosh

The recent proposals concerning the usage of the real polarized gamma beam, obtained by the Compton backscattering of the laser photons off the electron beams from either the linear or circular accelerators were considered. The heavy quark…

High Energy Physics - Phenomenology · Physics 2011-09-13 S. Alekhin , V. Borodulin , A. Celikel , M. Kantar , S. Sultansoy

The hyperfine coupling between the spin of a charge carrier and the nuclear spin bath is a predominant channel for the carrier spin relaxation in many organic semiconductors. We theoretically investigate the hyperfine-induced spin…

Mesoscale and Nanoscale Physics · Physics 2015-09-30 V. V. Mkhitaryan , V. V. Dobrovitski

We investigate the production of spin-3/2 hadrons in semi-inclusive deep inelastic lepton-nucleon scatterings. The complete differential cross section is derived through the kinematic analysis and expressed in terms of 288 structure…

High Energy Physics - Phenomenology · Physics 2024-04-18 Jing Zhao , Zhe Zhang , Zuo-tang Liang , Tianbo Liu , Ya-jin Zhou

General expressions for the unpolarized differential cross section and for various polarization observables in the coherent pseudoscalar meson photo- and electroproduction on the deuteron target have been obtained in one-photon-exchange…

High Energy Physics - Phenomenology · Physics 2019-08-07 G. I. Gakh , A. G. Gakh , E. Tomasi-Gustafsson

Studies of the Deep Inelastic Scattering (DIS) have provided fundamental information of the nucleon structure for decades. The electron-ion collider (EIC) will be the first collider capable of DIS study with both polarized lepton and…

High Energy Physics - Phenomenology · Physics 2023-06-02 Paul Anderson , Douglas Higinbotham , Sonny Mantry , Xiaochao Zheng

This paper gives a pedagogical introduction to our knowledge of the spin structure of the nucleon. In particular, polarised deep inelastic lepton scattering is presented as a tool to study how the nucleon's constituents combine to generate…

High Energy Physics - Phenomenology · Physics 2007-05-23 Michel C. Vetterli

The helicity correlation of two back-to-back hadrons is a powerful tool that makes it possible to probe the longitudinal spin transfer, $G_{1L}$, in unpolarized hadronic collisions. In this work, we investigate the helicity correlation of…

High Energy Physics - Phenomenology · Physics 2024-10-30 Zhao-Xuan Chen , Hui Dong , Shu-Yi Wei

Different phenomenological approaches for Lambda and Lambda-bar polarization in polarized semi-inclusive deep inelastic scattering and electron-positron annihilation at Z^0 pole are considered. Current and future experiments will soon…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. M. Kotzinian

We explore the possibility whether the gluon helicity distribution $\Delta G(x)$ can be extracted from a comparison of experimental data on the longitudinal spin-spin asymmetry $A_{LL}$ in $\gamma p$ diffractive deep inelastic scattering…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. I. Manayenkov

The T matrix of the LambdaN-> NN reaction, which is a strangeness changing weak process, is derived. The explicit formulas of the spin observables are given for s-wave p-Lambda final states which kinematically corresponds to inverse…

Nuclear Theory · Physics 2009-10-31 H. Nabetani , T. Ogaito , T. Sato , T. Kishimoto

Polarization has opened a new physics chapter in relativistic heavy-ion collisions. Since the first prediction and experimental observation of global spin polarization, a lot of progress has been made in understanding its features, both at…

Nuclear Theory · Physics 2024-02-08 Francesco Becattini , Matteo Buzzegoli , Takafumi Niida , Shi Pu , Ai-Hong Tang , Qun Wang

We investigate the transverse target spin asymmetry $A^{\sin\phi_{S}}_{UT}$ for the unpolarized $\Lambda$ production in semi-inclusive deep inelastic scattering with the transverse momentum of the final-state lambda hyperon being integrated…

High Energy Physics - Phenomenology · Physics 2021-06-16 Yongliang Yang , Xiaoyu Wang , Zhun Lu
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