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Measurements of the proton structure function $F_2$ in the $Q^2$ range $0.6 - 17 \rm GeV^2$ from ZEUS 1995 shifted vertex data and $Q^2 \simeq 1.5 - 20000 \rm GeV^2$ from 1996 and 1997 ZEUS data are presented. From the former and other ZEUS…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Quadt

The search for undiscovered excited states of the nucleon continues to be a focus of experiments at Jefferson Lab.Recent LQCD calculations have confirmed long-standing quark-model predictions of many more states than have so far been…

Nuclear Experiment · Physics 2015-06-18 Natalie K. Walford , Franz J. Klein

The COMPASS experiment at CERN has collected a large sample of events of inelastic scattering of longitudinally polarised muons off longitudinally polarised protons in the non-perturbative region (four-momentum transfer squared $Q^2<1$…

High Energy Physics - Experiment · Physics 2019-08-13 A. S. Nunes

Experiment E02-019, performed in Hall C at the Thomas Jefferson National Accelerator Facility (TJNAF), was a measurement of inclusive electron cross sections for several nuclei ($^{2}$H,$^{3}$He, $^{4}$He, $^{9}$Be,$^{12}$C, $^{63}$Cu, and…

Nuclear Experiment · Physics 2008-12-12 Nadia Fomin

After the initial discovery of the so-called "spin crisis in the parton model" in the 1980's, a large set of polarization data in deep inelastic lepton-nucleon scattering was collected at labs like SLAC, DESY and CERN. More recently, new…

High Energy Physics - Phenomenology · Physics 2009-06-09 S. E. Kuhn , J. -P. Chen , E. Leader

A recent experiment [{\bf Phys. Rev. Lett. 126,082301 (2021)}] used the $(e,e'p)$ reaction on $^{12}$C to search for the effects of color transparency (the absence of final state interactions). Color transparency was said to be ruled out.…

Nuclear Theory · Physics 2021-07-21 Olivia Caplow-Munro , Gerald A. Miller

Measurements of the proton structure function F_2 for 0.11 < Q^2 < 20000 GeV^2 and 1.2 X 10^-5 < x < 0.65 from ZEUS 1994-1997 measurements are presented. From ZEUS 1994 and 1995 F_2 data the slopes d(F_2)/d(ln Q^2) at fixed x and d(ln…

High Energy Physics - Experiment · Physics 2007-05-23 Richard Cross

We critically analyse the data available on the reduced cross-section in deeply inelastic $e p$ scattering from the H1 collaboration at HERA. We use available data on the longitudinal structure function to deduce the nature of $\d F_2/\d\ln…

High Energy Physics - Phenomenology · Physics 2009-10-31 Rahul Basu , D. Indumathi

Two dimensional materials offer a path forward for smaller and more efficient devices. Their optical and electronic properties give way to beat the limits set in place by Moore's Law. Plasmon are the collective oscillations of electrons and…

Mesoscale and Nanoscale Physics · Physics 2020-12-21 Eoin Moynihan , Stefan Rost , Eoghan O'Connell , Quentin Ramasse , Christoph Friedrich , Ursel Bangert

The inclusive polarized structure functions of the proton and deuteron, g1p and g1d, were measured with high statistical precision using polarized 6 GeV electrons incident on a polarized ammonia target in Hall B at Jefferson Laboratory.…

Nuclear Experiment · Physics 2019-08-13 Y. Prok , P. Bosted , N. Kvaltine , K. P. Adhikari , D. Adikaram , M. Aghasyan , M. J. Amaryan , M. D. Anderson , S. Anefalos Pereira , H. Avakian , H. Baghdasaryan , J. Ball , N. A. Baltzell , M. Battaglieri , A. S. Biselli , J. Bono , W. J. Briscoe , J. Brock , W. K. Brooks , S. Bültmann , V. D. Burkert , C. Carlin , D. S. Carman , A. Celentano , S. Chandavar , L. Colaneri , P. L. Cole , M. Contalbrigo , O. Cortes , D. Crabb , V. Crede , A. D'Angelo , N. Dashyan , R. De Vita , E. De Sanctis , A. Deur , C. Djalali , G. E. Dodge , D. Doughty , R. Dupre , A. El Alaoui , L. El Fassi , L. Elouadrhiri , G. Fedotov , S. Fegan , R. Fersch , J. A. Fleming , T. A. Forest , M. Garcon , N. Gevorgyan , Y. Ghandilyan , G. P. Gilfoyle , F. X. Girod , K. L. Giovanetti , J. T. Goetz , W. Gohn , R. W. Gothe , K. A. Griffioen , B. Guegan , N. Guler , K. Haffidi , C. Hanretty , N. Harrison , M. Hattawy , K. Hicks , D. Ho , M. Holtrop , Y. Ilieva , D. G. Ireland , B. S. Ishkhanov , E. L. Isupov , S. Jawalkar , X. Jiang , H. S. Jo , K. Joo , N. Kalantarians , C. Keith , D. Keller , M. Khandaker , A. Kim , W. Kim , A. Klein , F. J. Klein , S. Koirala , V. Kubarovsky , S. E. Kuhn , S. V. Kuleshov , P. Lenisa , K. Livingston , H. Y. Lu , I . J. D. MacGregor , N. Markov , M. Mayee , B. McKinnon , D. Meekins , T. Mineeva , M. Mirazita , V. Mokeev , R. A. Montgomery , H. Moutarde , A Movsisyan , E. Munevar , C. Munoz Camacho , P. Nadel-Turonski , S. Niccolai , G. Niculescu , I. Niculescu , M. Osipenko , A. I. Ostrovidov , L. L. Pappalardo , R. Paremuzyan , K. Park , P. Peng , J. J. Phillips , J. Pierce , S. Pisano , O. Pogorelko , S. Pozdniakov , J. W. Price , S. Procureur , D. Protopopescu , A. J. R. Puckett , B. A. Raue , D. Rimal , M. Ripani , A. Rizzo , G. Rosner , P. Rossi , P. Roy , F. Sabatié , M. S. Saini , C. Salgado , D. Schott , R. A. Schumacher , E. Seder , Y. G. Sharabian , A. Simonyan , C. Smith , G. Smith , D. I. Sober , D. Sokhan , S. S. Stepanyan , S. Stepanyan , I. I. Strakovsky , S. Strauch , V. Sytnik , M. Taiuti , W. Tang , S. Tkachenko , M. Ungaro , B . Vernarsky , A. V. Vlassov , H. Voskanyan , E. Voutier , N. K. Walford , D . P. Watts , L. B. Weinstein , N. Zachariou , L. Zana , J. Zhang , B. Zhao , Z. W. Zhao , I. Zonta

The approach for the description of the DNA conformational transformations on the mesoscopic scales in the frame of the double helix is presented. Due to consideration of the joint motions of DNA structural elements along the conformational…

Biomolecules · Quantitative Biology 2009-09-29 S. N. Volkov

We review the theory of polarized structure functions measured in deep-inelastic lepton-nucleon scattering, focusing on the most recent developments. We concentrate on the structure function $g_1$, emphasizing the phenomenological problems…

High Energy Physics - Phenomenology · Physics 2009-09-25 Stefano Forte

Classical MD data on the charge-charge dynamic structure factor of two-component plasmas (TCP) modeled in Phys. Rev. A 23, 2041 (1981) are analyzed using the sum rules and other exact relations. The convergent power moments of the imaginary…

We study the phenomenon of parton-hadron duality in both polarised and unpolarised electron proton scattering using the HERMES and the Jefferson Lab data, respectively. In both cases we extend a systematic perturbative QCD based analysis to…

High Energy Physics - Phenomenology · Physics 2009-11-10 N. Bianchi , A. Fantoni , S. Liuti

We present an improved determination of the proton structure functions $F_{2}$ and $xF_{3}$ from the CCFR $\nu $-Fe deep inelastic scattering (DIS) experiment. Comparisons to high-statistics charged-lepton scattering results for $F_{2}$…

High Energy Physics - Experiment · Physics 2008-11-26 CCFR Collaboration , W. Seligman

There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has been greatly improved by performing double polarization experiments, in…

High Energy Physics - Phenomenology · Physics 2009-09-29 C. F. Perdrisat , V. Punjabi , M. Vanderhaeghen

Strange matter is believed to exist in the cores of neutron stars based on simple kinematics. If this is true, then hyperon-nucleon interactions will play a significant part in the neutron star equation of state (EOS). Yet, compared to…

High Energy Physics - Experiment · Physics 2021-08-09 CLAS Collaboration , J. Rowley , N. Compton , C. Djalali , K. Hicks , J. Price , N. Zachariou , K. P. Adhikari , W. R. Armstrong , H. Atac , L. Baashen , L. Barion , M. Bashkanov , M. Battaglieri , I. Bedlinskiy , F. Benmokhtar , A. Bianconi , L. Biondo , A. S. Biselli , M. Bondi , F. Bossu , S. Boiarinov , W. J. Briscoe , W. K. Brooks , D. Bulumulla , V. D. Burkert , D. S. Carman , J. C. Carvajal , A. Celentano , P. Chatagnon , V. Chesnokov , T. Chetry , G. Ciullo , L. Clark , P. L. Cole , M. Contalbrigo , G. Costantini , V. Crede , A. D'Angelo , N. Dashyan , R. De Vita , M. Defurne , A. Deur , S. Diehl , R. Dupre , H. Egiyan , M. Ehrhart , A. El Alaoui , L. El Fassi , P. Eugenio , G. Fedotov , S. Fegan , R. Fersch , A. Filippi , A. Fradi , G. Gavalian , F. X. Girod , D. I. Glazier , A. Golubenko , R. W. Gothe , K. Griffioen , L. Guo , K. Hafidi , H. Hakobyan , M. Hattawy , T. B. Hayward , D. Heddle , A. Hobart , M. Holtrop , Y. Ilieva , D. G. Ireland , E. L. Isupov , D. Jenkins , H. S. Jo , K. Joo , D. Keller , A. Khanal , M. Khandaker , A. Kim , I. Korover , A. Kripko , V. Kubarovsky , S. E. Kuhn , L. Lanza , M. Leali , P. Lenisa , K. Livingston , I. J. D. MacGregor , D. Marchand , N. Markov , L. Marsicano , V. Mascagna , M. E. McCracken , B. McKinnon , C. McLauchlin , Z. E. Meziani , S. Migliorati , T. Mineeva , M. Mirazita , V. Mokeev , E. Munevar , C. Munoz Camacho , P. Nadel-Turonski , K. Neupane , S. Niccolai , G. Niculescu , T. R. O'Connell , M. Osipenko , A. I. Ostrovidov , P. Pandey , M. Paolone , L. L. Pappalardo , E. Pasyuk , O. Pogorelko , Y. Prok , T. Reed , M. Ripani , J. Ritman , A. Rizzo , G. Rosner , F. Sabatie , C. Salgado , A. Schmidt , R. A. Schumacher , Y. G. Sharabian , U. Shrestha , D. Sokhan , O. Soto , N. Sparveris , I. I. Strakovsky , S. Strauch , R. Tyson , M. Ungaro , L. Venturelli , H. Voskanyan , A. Vossen , E. Voutier , D. Watts , K. Wei , X. Wei , R. Wishart , M. H. Wood , B. Yale , M. Yurov , J. Zhang , Z. W. Zhao

Fragmentation functions represent a key ingredient to address the proton spin structure in semi-inclusive deep-inelastic scattering and proton-proton collisions. They can not be determined from perturbative Quantum Chromodynamics and have…

High Energy Physics - Experiment · Physics 2022-03-02 Nour Makke

A theoretical possibility to determine the proton Compton scattering cross section from the reaction $ep\rightarrow ep\gamma$ is studied in the kinematics with a small transversal momentum transfer in the electron leg. With the exception of…

High Energy Physics - Phenomenology · Physics 2025-10-21 A. I. Lvov , V. A. Petrunkin , S. G. Popov , B. B. Wojtsekhowski

The present status of the measurements of hadronic structure functions of the photon, investigated in deep inelastic electron-photon scattering at LEP, is presented. This article covers the hadronic structure function F_2^gamma of…

High Energy Physics - Experiment · Physics 2015-06-25 R. J. Taylor