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I discuss inclusive and semi-inclusive lepton-hadron scattering emphasizing the importance of polarization in order to study various single or double spin asymmetries and the importance of particle identification and angular resolution in…

Nuclear Theory · Physics 2009-10-30 P. J. Mulders

It is demonstrated that measurements of the spin asymmetry for di-jet production at future polarized colliders appear to be particularly suited for a first determination of the so far unmeasured parton densities of circularly polarized…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Stratmann

The current status of measurements of the nucleon structure functions and their understanding is reviewed. The fixed target experiments E665, CCFR and NMC and the HERA experiments H1 and ZEUS are discussed in some detail. The extraction of…

High Energy Physics - Phenomenology · Physics 2010-03-25 A. M. Cooper-Sarkar , R. C. E. Devenish , A. De Roeck

Fracture functions, originally suggested to describe the production of diffractive and leading hadrons in semi-inclusive DIS, may be also applied at fixed target energies. They may also include interference and final state interaction,…

High Energy Physics - Phenomenology · Physics 2007-05-23 O. V. Teryaev

We have measured proton and deuteron virtual photon-nucleon asymmetries A2p and A2d and structure functions g2p and g2d over the range 0.03<x<0.8 and 1.3<Q2<10 (GeV/c)2 by inelastically scattering polarized electrons off polarized ammonia…

High Energy Physics - Experiment · Physics 2008-11-26 The E143 Collaboration , K. Abe et al

We measured the $g_1$ spin structure function of the deuteron at low $Q^{2}$, where QCD can be approximated with chiral perturbation theory ($\chi$PT). The data cover the resonance region, up to an invariant mass of $W\approx1.9$~GeV. The…

Nuclear Experiment · Physics 2022-02-21 K. P. Adhikari , A. Deur , L. El Fassi , H. Kang , S. E. Kuhn , M. Ripani , K. Slifer , X. Zheng , S. Adhikari , Z. Akbar , M. J. Amaryan , H. Avakian , J. Ball , I. Balossino , L. Barion , M. Battaglieri , I. Bedlinskiy , A. S. Biselli , P. Bosted , W. J. Briscoe , J. Brock , S. Bueltmann , V. D. Burkert , F. Thanh Cao , C. Carlin , D. S. Carman , A. Celentano , G. Charles , J. -P. Chen , T. Chetry , S. Choi , G. Ciullo , L. Clark , P. L. Cole , M. Contalbrigo , V. Crede , A. D'Angelo , N. Dashyan , R. De Vita , E. De Sanctis , M. Defurne , C. Djalali , G. E. Dodge , V. Drozdov , R. Dupre , H. Egiyan , A. El Alaoui , L. Elouadrhiri , P. Eugenio , G. Fedotov , A. Filippi , Y. Ghandilyan , G. P. Gilfoyle , E. Golovatch , R. W. Gothe , K. A. Griffioen , M. Guidal , N. Guler , L. Guo , K. Hafidi , H. Hakobyan , C. Hanretty , N. Harrison , M. Hattawy , D. Heddle , K. Hicks , M. Holtrop , C. E. Hyde , Y. Ilieva , D. G. Ireland , E. L. Isupov , D. Jenkins , H. S. Jo , S. C. Johnston , K. Joo , S. Joosten , M. L. Kabir , C. D. Keith , D. Keller , G. Khachatryan , M. Khachatryan , M. Khandaker , W. Kim , A. Klein , F. J. Klein , P. Konczykowski , K. Kovacs , V. Kubarovsky , L. Lanza , P. Lenisa , K. Livingston , E. Long , I . J . D. MacGregor , N. Markov , M. Mayer , B. McKinnon , D. G. Meekins , C. A. Meyer , T. Mineeva , M. Mirazita , V. Mokeev , A Movsisyan , C. Munoz Camacho , P. Nadel-Turonski , G. Niculescu , S. Niccolai , M. Osipenko , A. I. Ostrovidov , M. Paolone , L. Pappalardo , R. Paremuzyan , K. Park , E. Pasyuk , D. Payette , W. Phelps , S. K. Phillips , J. Pierce , O. Pogorelko , J. Poudel , J. W. Price , Y. Prok , D. Protopopescu , B. A. Raue , A. Rizzo , G. Rosner , P. Rossi , F. Sabatie , C. Salgado , R. A. Schumacher , Y. G. Sharabian , T. Shigeyuki , A. Simonyan , Iu. Skorodumina , G. D. Smith , N. Sparveris , D. Sokhan , S. Stepanyan , I. I. Strakovsky , S. Strauch , V. Sulkosky , M. Taiuti , J. A. Tan , M. Ungaro , E. Voutier , X. Wei , L. B. Weinstein , J. Zhang , Z. W. Zhao.

We report the results of a new measurement of spin structure functions of the deuteron in the region of moderate momentum transfer ($Q^2$ = 0.27 -- 1.3 (GeV/c)$^2$) and final hadronic state mass in the nucleon resonance region ($W$ = 1.08…

High Energy Physics - Experiment · Physics 2019-08-15 J. Yun , S. E. Kuhn , G. E. Dodge , T. A. Forest , M. Taiuti

Nuclear effects in Deep Inelastic Scattering of polarized electrons off polarized $^3$He are analyzed in terms of a spin dependent spectral function taking into account $S'$ and $D$ waves in $^3$He, as well as Fermi motion and binding…

Nuclear Theory · Physics 2009-09-25 C. Ciofi degli Atti , E. Pace , G. Salme` , S. Scopetta

The single pion production (SPP) in the charged-current neutrino (antineutrino) scattering off the polarized nucleon is discussed. The spin asymmetry is predicted within two approaches. The spin polarizations of the target nucleon that are…

High Energy Physics - Phenomenology · Physics 2019-03-12 Krzysztof M. Graczyk , Beata E. Kowal

Spin azimuthal asymmetries in pion electro-production in deep inelastic scattering off longitudinally polarized protons, measured by HERMES, are well reproduced theoretically with no adjustable parameters. Predictions for azimuthal…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. V. Efremov , K. Goeke , P. Schweitzer

So far the analyses of the polarized structure functions of the proton and neutron have been limited to the evaluation of their integrals and comparing them to the prediction of the static quark model of the nucleon. We extended our…

High Energy Physics - Phenomenology · Physics 2018-10-30 B. Povh , M. Rosina

Comparison of structure functions measured in neutrino and charged lepton deep inelastic scattering can be used to test basic properties of parton distribution functions such as the validity of charge symmetry. Recent experiments indicate a…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. Boros , J. T. Londergan , A. W. Thomas

The work presents the studies of the polarization observables in the single pion production (SPP) induced by the interaction of the muon neutrino (antineutrino) with nucleons. The SPP cross-sections and spin asymmetries are computed within…

High Energy Physics - Phenomenology · Physics 2021-09-01 Krzysztof M. Graczyk , Beata E. Kowal

Nuclear effects in polarized inelastic electron scattering off polarized $^3He$ are discussed; in the kinematics of future experiments at CEBAF, Fermi motion effects are found to be much larger than in deep inelastic scattering. It is shown…

Nuclear Theory · Physics 2009-10-30 C. Ciofi degli Atti , S. Scopetta

The spin-structure functions $g_1$ and $g_2$, and the spin-dependent partial cross-section $\sigma_\mathrm{TT}$ have been extracted from the polarized cross-sections differences, $\Delta…

A study of semi-inclusive deep inelastic scattering off transversely polarized $^3$He is presented. The formal expressions of the Collins and Sivers contributions to the azimuthal single spin asymmetry for the production of leading pions…

High Energy Physics - Phenomenology · Physics 2008-11-26 Sergio Scopetta

An idea of possible anomalous contribution of non-perturbative origin to the nucleon spin was examined by analysing data on spin asymmetries in polarized deep inelastic scattering of leptons on nucleons. The region of high Bjorken x was…

High Energy Physics - Phenomenology · Physics 2009-10-31 Wojciech Wislicki

The technique of polarized neutron scattering is reviewed with emphasis on applications. Many examples of the usefulness of the method in various fields of physics are given like the determination of spin density maps, measurement of…

Strongly Correlated Electrons · Physics 2007-05-23 B. Roessli , P. Böni

We discuss the determination of polarized parton distributions from charged-current deep-inelastic scattering experiments. We summarize the next-to-leading order treatment of charged-current polarized structure functions, their relation to…

High Energy Physics - Phenomenology · Physics 2009-10-08 Stefano Forte , Michelangelo L. Mangano , Giovanni Ridolfi

Single spin asymmetries in semi-inclusive deep-inelastic scattering off transversely polarized nucleon targets have been under intense experimental investigation over the past few years. They provide new insights into QCD and the nucleon…

High Energy Physics - Experiment · Physics 2009-08-24 H. Wollny
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