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The experimental data on F2 structure functions of the proton and deuteron were used to construct their moments. In particular, recent measurements performed with CLAS detector at Jefferson Lab allowed to extend our knowledge of structure…

High Energy Physics - Phenomenology · Physics 2014-11-18 M. Osipenko , S. Simula , S. Kulagin , G. Ricco , CLAS Collaboration

We perform a global analysis of neutron F2n structure function data, obtained by combining proton and deuteron measurements over a large range of kinematics. From these data the lowest moments (n <= 10) of the leading twist neutron F2n…

High Energy Physics - Phenomenology · Physics 2014-11-18 M. Osipenko , W. Melnitchouk , S. Simula , S. Kulagin , G. Ricco

QCD-inspired phenomenological analysis of experimental moments of proton and deuteron structure functions F2 have been presented. The obtained results on the d/u ratio at large-x, isospin dependence of higher twists and comparison with…

High Energy Physics - Phenomenology · Physics 2007-11-14 M. Osipenko

We summarize the results of a recent global analysis of proton and deuteron F2 structure function world data performed over a large range of kinematics, including recent measurements done at JLab with the CLAS detector. From these data the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Silvano Simula

We performed the measurement of the inclusive electron scattering off the proton in the resonance region (W<2.5 GeV) at momentum transfer Q2 below 4.5 (GeV/c)^2 with the CLAS detector. The large acceptance of CLAS provided an access to a…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Osipenko , S. Simula , G. Ricco , G. Fedotov , E. Golovach , B. Ishkhanov , E. Isupov , V. Mokeev

The available world deep-inelastic scattering data on proton and deuteron structure functions F2p, F2d, and their ratios, are leveraged to extract the free neutron F2n structure function, the F2n/F2p ratio, and associated uncertainties…

A recent reanalysis of world proton and deuteron structure function measurements showed that a significant amount of the apparent model dependence in the extraction of the neutron structure function was related to inconsistencies between…

Nuclear Experiment · Physics 2015-05-27 J. G. Rubin , J. Arrington

The spin-averaged structure function of the neutron, F_2^n, is extracted from recent deuteron data, taking into account the small but significant corrections due to nuclear effects in the deuteron. At small x, the F_2D/F_2p ratio measured…

Nuclear Theory · Physics 2010-02-17 W. Melnitchouk , A. W. Thomas

New nuclear structure function data from Jefferson Lab covering the higher x and lower Q^2 regime make it possible to extract the higher order F_2 moments for iron and deuterium at low four-momentum transfer squared Q^2. These moments allow…

High Energy Physics - Phenomenology · Physics 2008-11-26 I. Niculescu , J. Arrington , R. Ent , C. E. Keppel

Inclusive electron scattering off the deuteron has been measured to extract the deuteron structure function F2 with the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. The measurement covers…

High Energy Physics - Experiment · Physics 2010-04-06 M. Osipenko , G. Ricco , S. Simula , M. Battaglieri , M. Ripani , the CLAS Collaboration

We present a detailed analysis of the uncertainty in the neutron F2n structure function extracted from inclusive deuteron and proton deep-inelastic scattering data. The analysis includes experimental uncertainties as well as uncertainties…

High Energy Physics - Phenomenology · Physics 2013-05-30 J. Arrington , J. G. Rubin , W. Melnitchouk

Higher-twist effects in the low-order moments of the longitudinal and transverse structure functions of proton and deuteron have been analyzed using available phenomenological fits of existing data in the Q**2 range between 1 and 20…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Ricco , S. Simula

We report on the first measurement of the F2 structure function of the neutron from semi-inclusive scattering of electrons from deuterium, with low-momentum protons detected in the backward hemisphere. Restricting the momentum of the…

Nuclear Experiment · Physics 2012-05-15 N. Baillie , S. Tkachenko , J. Zhang , P. Bosted , S. Bultmann , M. E. Christy , H. Fenker , K. A. Griffioen , C. E. Keppel , S. E. Kuhn , W. Melnitchouk , V. Tvaskis , K. P. Adhikari , D. Adikaram , M. Aghasyan , M. J. Amaryan , M. Anghinolfini , J. Arrington , H. Avakian , H. Baghdasaryan , M. Battaglieri , A. S. Biselli , 5 D. Branford , W. J. Briscoe , W. K. Brooks , V. D. Burkert , D. S. Carman , A. Celentano , S. Chandavar , G. Charles , P. L. Cole , M. Contalbrigo , V. Crede , A. D'Angelo , A. Daniel , N. Dashyan , R. De Vita , E. De Sanctis , A. Deur , B. Dey , C. Djalali , G. Dodge , J. Domingo , D. Doughty , R. Dupre , D. Dutta , R. Ent , H. Egiyan , A. El Alaoui , L. El Fassi , L. Elouadrhiri , P. Eugenio , G. Fedotov , S. Fegan , A. Fradi , M. Y. Gabrielyan , N. Gevorgyan , G. P. Gilfoyle , K. L. Giovanetti , F. X. Girod , W. Gohn , E. Golovatch , R. W. Gothe , L. Graham , B. Guegan , M. Guidal , N. Guler , L. Guo , K. Hafidi , D. Heddle , K. Hicks , M. Holtrop , E. Hungerford , C. E. Hyde , Y. Ilieva , D. G. Ireland , M. Ispiryan , E. L. Isupov , S. S. Jawalkar , H. S. Jo , N. Kalantarians , M. Khandaker , P. Khetarpal , A. Kim , W. Kim , P. M. King , A. Klein , F. J. Klein , A. Klimenko , V. Kubarovsky , S. V. Kuleshov , N. D. Kvaltine , K. Livingston , H. Y. Lu , I . J . D. MacGregor , Y. Mao , N. Markov , B. McKinnon , T. Mineeva , B. Morrison , H. Moutarde , E. Munevar , P. Nadel-Turonski , A. Ni , S. Niccolai , I. Niculescu , G. Niculescu , M. Osipenko , A. I. Ostrovidov , L. Pappalardo , K. Park , S. Park , E. Pasyuk , S. Anefalos Pereira , S. Pisano , S. Pozdniakov , J. W. Price , S. Procureur , Y. Prok , D. Protopopescu , B. A. Raue , G. Ricco , D. Rimal , M. Ripani , G. Rosner , P. Rossi , F. Sabatie , M. S. Saini , C. Salgado , D. Schott , R. A. Schumacher , E. Seder , Y. G. Sharabian , D. I. Sober , D. Sokhan , S. Stepanyan , S. S. Stepanyan , P. Stoler , S. Strauch , M. Taiuti , W. Tang , M. Ungaro , M. F. Vineyard , E. Voutier , D. P. Watts , L. B. Weinstein , D. P. Weygand , M. H. Wood , L. Zana , B. Zhao

We present results of a perturbative QCD analysis of deep inelastic measurements of both the deuteron and proton structure functions. We evaluate the theoretical uncertainty associated to nuclear effects in the deuteron, and we extract…

High Energy Physics - Phenomenology · Physics 2014-11-17 S. I. Alekhin , S. A. Kulagin , S. Liuti

Nucleon structure functions, as measured in lepton-nucleon scattering, have historically provided a critical observable in the study of partonic dynamics within the nucleon. However, at very large parton momenta it is both experimentally…

High Energy Physics - Experiment · Physics 2025-07-30 Debaditya Biswas , Fernando Araiza Gonzalez , William Henry , Abishek Karki , Casey Morean , Sooriyaarachchilage Nadeeshani , Abel Sun , Daniel Abrams , Zafar Ahmed , Bashar Aljawrneh , Sheren Alsalmi , George Ambrose , Whitney Armstrong , Arshak Asaturyan , Kofi Assumin-Gyimah , Carlos Ayerbe Gayoso , Anashe Bandari , Samip Basnet , Vladimir Berdnikov , Hem Bhatt , Deepak Bhetuwal , Werner Boeglin , Peter Bosted , Edward Brash , Masroor Bukhari , Haoyu Chen , Jian-Ping Chen , Mingyu Chen , Michael Eric Christy , Silviu Covrig Dusa , Kayla Craycraft , Samuel Danagoulian , Donal Day , Markus Diefenthaler , Mongi Dlamini , James Dunne , Burcu Duran , Dipangkar Dutta , Rolf Ent , Rory Evans , Howard Fenker , Nadia Fomin , Eric Fuchey , David Gaskell , Thir Narayan Gautam , Jens-Ole Hansen , Florian Hauenstein , A. Hernandez , Tanja Horn , Garth Huber , Mark Jones , Sylvester Joosten , Md Latiful Kabir , Cynthia Keppel , Achyut Khanal , Paul King , Edward Kinney , Michael Kohl , Nathaniel Lashley-Colthirst , Shujie Li , Wenliang Li , Anusha Habarakada Liyanage , David Mack , Simona Malace , Pete Markowitz , John Matter , David Meekins , Robert Michaels , Arthur Mkrtchyan , Hamlet Mkrtchyan , Zae Moore , S. J. Nazeer , Shirsendu Nanda , Gabriel Niculescu , Maria Niculescu , Huong Nguyen , Nuruzzaman Nuruzzaman , Bishnu Pandey , Sanghwa Park , Eric Pooser , Andrew Puckett , Melanie Rehfuss , Joerg Reinhold , Bradley Sawatzky , G. Smith , Holly Szumila-Vance , Arun Tadepalli , Vardan Tadevosyan , Richard Trotta , Stephen Wood , Carlos Yero , Jinlong Zhang

Inspired by recent measurements with the CLAS detector at Jefferson Lab, we perform a self-consistent analysis of world data on the proton structure function g1 in the range 0.17 < Q2 < 30 (GeV/c)**2. We compute for the first time low-order…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Osipenko , S. Simula , W. Melnitchouk , P. Bosted , V. Burkert , E. Christy , K. Griffioen , C. Keppel , S. Kuhn , G. Ricco

Neutron structure functions can be extracted from proton and deuteron data and a representation of the deuteron structure. This procedure does not require DIS approximations or quark structure assumptions. We find that the results depend…

Nuclear Theory · Physics 2008-12-18 J. Arrington , F. Coester , R. J. Holt , T. -S. H. Lee

We report on the measurement of inclusive electron scattering off a carbon target performed with CLAS at Jefferson Laboratory. A combination of three different beam energies 1.161, 2.261 and 4.461 GeV allowed us to reach an invariant mass…

Nuclear Experiment · Physics 2014-11-20 M. Osipenko , CLAS Collaboration

The Q^2 dependence of inclusive electron-proton scattering F_2 structure function data in both the nucleon resonance region and the deep inelastic region, at momentum transfers below 5 (GeV/c)^2, is investigated. Moments of F_2 are…

High Energy Physics - Phenomenology · Physics 2014-11-17 C. S. Armstrong , R. Ent , C. E. Keppel , S. Liuti , G. Niculescu , I. Niculescu
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